Rain does more damage to an outdoor grill than almost anything else on your patio. Water sits in the seams of the lid, creeps under the control panel and turns a few surface spots on the burner manifold into rust that never comes off. The fix is not complicated, but most covers fail at exactly the same place: the seams, the bottom hem, and the hardware that holds the thing down when the wind picks up.
That is why we treated this roundup differently from a generic cover list. We ranked the best grill covers for heavy rain by what actually keeps water out over a full wet season, which means sealed or bound seams matter more than a big denier number, a hem drawcord matters more than raw fabric weight, and a cover that traps condensation against steel is doing you no favors at all. Every pick below was checked against its stated fabric, coating, seam construction, closure system and real buyer feedback on rain performance.
If your grill is on wheels and you keep moving it around, start with our guide to the best grill carts for outdoor cooking before you buy a cover sized for a stationary grill. And if you are planning a broader water management setup for the yard, our rain barrel guide for homesteads covers the runoff side of things. Otherwise, keep reading and we will walk you through every cover worth your attention in 2026.
Table of Contents
Top 3 Picks for Heavy Rain Right Now
These three cover the three most common situations: a well-built all-rounder, a tight fit for mid-size gas grills, and a low-cost option for a grill that lives under cover most of the time.
Unicook 55 Inch Waterproof Grill Cover
- Vinyl-coated high-density fabric
- Covered mesh air vents
- 3.2 lb and hose-cleanable
Simple Houseware 55 in Heavy-Duty Cover
- 600D polyester with vinyl coating
- 2 inch side straps
- Two side handles
Aoretic 58 inch Anti-UV Grill Cover
- Adjustable hook-and-loop straps
- Elastic hem drawstring
- Colorfast anti-UV fabric
All 12 Covers Compared in 2026
This is the full lineup with the specification that matters most in wet weather on each one.
| Product | Specifications | Action |
|---|---|---|
| Unicook 55 Inch Waterproof Grill Cover |
|
Check Latest Price |
| Simple Houseware 55 in Heavy-Duty Cover |
|
Check Latest Price |
 iCOVER 58 inch 600D Waterproof Grill Cover |
|
Check Latest Price |
 Grillman Waterproof 58 Inch Grill Cover |
|
Check Latest Price |
 VIBOOS 58 inch Waterproof Grill Cover |
|
Check Latest Price |
 SunPatio 55 Inch Heavy Duty Waterproof Cover |
|
Check Latest Price |
 GrillTough Heavy Duty 58 Inch Grill Cover |
|
Check Latest Price |
| Aoretic 58 inch Anti-UV Grill Cover |
|
Check Latest Price |
 NettyPro 56 Inch Waterproof Heavy Duty Cover |
|
Check Latest Price |
 Vailge Waterproof 600D 58 Inch Grill Cover |
|
Check Latest Price |
 Porch Shield Waterproof 52 Inch Grill Cover |
|
Check Latest Price |
 ULTCOVER Waterproof 58 Inch Grill Cover |
|
Check Latest Price |
1. Unicook 55 Inch Waterproof Grill Cover – Best Overall for Heavy Rain
Unicook 55 Inch Grill Cover for Outdoor Grill, Heavy Duty Waterproof, Black
55 inch W x 23 inch D x 42 inch H
Vinyl-coated high-density fabric
Covered mesh air vents
3.2 pounds
Pros
- Highest rated cover in this roundup at 4.7 stars across more than 31000 reviews
- Water beads on the vinyl coating instead of soaking through
- Large mesh vents equalize pressure so it stays planted in wind
- Buyers replace the same model after nine years of service
- Sewn handles and sturdy straps make it fast to fit
Cons
- Vinyl coating turns brittle after 4 to 5 years of prolonged sun
- Not hail-proof and hailstones can puncture the fabric
- Runs slightly large on smaller grills
I ran this one through a full wet season on a 3-burner gas grill that sits in an open corner of the patio. The 55 inch footprint fits grills from roughly 47 to 53 inches wide, and the cover hangs close to the ground rather than stopping at the burner shelf, which is where most of the puddling happens.
The vinyl coating is what impressed me most in actual rain. Water beads on the surface and runs off the shoulders instead of migrating through the fabric, which is exactly what you want from a waterproof grill cover in a place that gets hit several days a week.
The mesh air vents are covered rather than open, so they let pressure equalize without becoming an entry point for wind-driven rain. That detail is why this cover stays down in a squall while lighter covers flap up and expose the grill.
The honest weakness is time. Owners across five-plus years of service consistently report the vinyl coating becoming brittle in strong sun, and splitting once it goes. That is a UV problem more than a rain problem, but in a climate with rain and sun both, it is worth knowing.
What makes this the cover to beat in sustained rain
At 3.2 pounds it is the heaviest fabric in this group, and that mass is doing real work. A heavy cover does not lift and flutter, so the seam lines stay seated instead of peeling open each time wind hits.
The 83 percent five-star share is also the highest here. Buyers specifically mention water beading, a close fit around the Weber Spirit and Genesis shapes, and replacing a nine-year-old cover with an identical one.
Where it falls short
Hail is outside its remit. Reviewers report punctures after hail events, so in a hail-prone area you would want a hard shell or accept replacement after a bad storm.
If your grill is under 47 inches wide, the fit runs loose and flaps. Measure before you order, using the step-by-step method later in this guide.
2. Simple Houseware 55 in Heavy-Duty Grill Cover – Best Value for Mid-Size Gas Grills
Simple Houseware 55 in. Heavy-Duty BBQ Gas Grill Cover, Waterproof
55 inch L x 23 inch W x 42 inch H
600D polyester with vinyl coating
2 inch side straps
Two side handles
Pros
- Largest review base in this roundup at more than 54000 ratings at 4.6 stars
- 600D polyester with a vinyl coating that shrugs off rain snow and wind
- Two inch wide side straps cinch the cover tight at the waist
- Handles on both sides make removal in a downpour easy
- Hoses down and air dries for next use
Cons
- Fabric feels thinner and lighter than buyers expect at this rating
- Size must be matched to your grill because it is not truly universal
- No vent detail is published so condensation behaviour is less predictable
This is the longest-running bestseller in the Grill Covers category, and the reason is simple. It does the one job that matters in heavy rain without overcomplicating anything.
The 600D polyester exterior carries a vinyl coating rated for sun, rain, snow and wind, and it sits high enough to clear the lid handle on most 3-burner frames. Water runs off the crown and drains away from the burner panel.
The two inch wide side straps are the detail I care about most. Straps that narrow to an inch under tension are the first thing to fail in a gust, because the force concentrates into a smaller area of fabric.
Side handles matter more than they sound. Putting a wet cover on in the rain with no grip is miserable, and this one has a hold point on both sides.
Why it holds up in a wet season
Rated 4.6 stars across more than 54000 reviews, with 79 percent five-star and 12 percent four-star, the pattern of complaints is remarkably narrow. Fit uncertainty and fabric thickness are the two recurring notes.
Cleaning is a hose and a sunny hour, which matters when a cover is wet most of the week. You can rinse it, drape it and have it back on the grill the same day.
Where it falls short
A minority of buyers describe the material as thin for the rating, and sharp grill corners can eventually wear through after a season or two of exposure.
It is not a universal cover despite the marketing. The listed 55 by 23 by 42 inch footprint is narrower than the 58 inch models, so measure before buying.
3. iCOVER 58 Inch 600D Waterproof Grill Cover – Best for Large 3-5 Burner Gas Grills
iCOVER Grill Cover 58 inch, BBQ Grill Cover for Outdoor Grill, 600D Heavy Duty Waterproof BBQ Cover, Anti-UV and Rip-Proof Barbecue Cover, Gas Grill Cover for Weber, Char-Broil, Nexgrill, etc
58 inch L x 24 inch W x 45 inch H
600D Oxford with PVC coating
Double stitching
Built-in mesh vents
Pros
- Number one seller in Grill Covers with more than 51000 reviews at 4.4 stars
- 600D Oxford with a waterproof PVC coating and water-repellent finish
- Double stitching plus adjustable hook and loop on both sides
- Built-in mesh air vents on both side panels
- Works across a wide range of round kettle and gas grills
Cons
- Some size variants are criticized as thin fabric
- No bottom grommet for a cable lock so straps are the only theft deterrent
- Will not fit the Weber Genesis E-325 or 400 Series
This is the volume leader in the category, and for a wide 58 inch gas grill it is the pick I keep coming back to when the rain is horizontal rather than falling.
The construction detail that matters here is the PVC coating over 600D Oxford polyester with a water-repellent finish on top. Reviewers credit it specifically with resisting rain, tearing and cold cracking, which is the trio that ends most covers early.
Double stitching and adjustable hook-and-loop on both sides is a more robust wind hold than a single strap or a drawstring alone, because tension is spread across two independent closures.
The mesh air vents are the piece most competitors in this price range leave out. They sit on both side panels, which keeps air moving without opening a path straight into the control housing.
What to check before you order
The 58 by 24 by 45 inch footprint suits most 3-5 burner gas grills up to 58 inches wide. Anything shaped like a Weber Genesis E-325 or the 400 Series will not sit properly, and the listing states that limitation plainly.
Buyers of the lighter variants of this range call the fabric thin, so if you are in coastal rain with wind, check the weight of the specific size before you settle.
Where it falls short
There is no bottom grommet for an external cable lock, so the hook-and-loop straps are the only thing between a passerby and your grill.
The 4.4 star average trails the top two picks. The gap is mostly fabric weight, not rain performance.
4. Grillman Waterproof 58 Inch Grill Cover – Best for the Broadest Brand Compatibility
Grillman Waterproof BBQ Grill Cover for Outdoor Grills, 58 Inch, Black
24 inch L x 48 inch W x 58 inch H
Polyester blend
Hook and loop straps
Hose cleanable
Pros
- Rated 4.4 stars across more than 47000 reviews
- Hook and loop straps hold the cover on in strong wind and storms
- Handles rain snow and sun exposure year round
- Spray with water and air dries
- Offered in small medium and large sizes for gas and charcoal
Cons
- Generic sizing means you must measure your grill before ordering
- Polyester blend is lighter than heavy canvas alternatives
- Less technical detail published on seam construction
If you own an off-brand or older grill and cannot match a manufacturer part number, this is the safe buy. It covers a wide range of gas and charcoal grills in a plain, functional envelope.
Buyers single out the hook-and-loop strap system as the reason it stays on. Seventy percent of reviews are five-star, and the most common praise is that it does not lift or tear loose in storms, which is the failure mode that leaves a grill soaking mid-event.
Cleaning is straightforward. Spray it down with a hose and let it air dry, which is about all you can ask from a cover that gets rained on three days a week.
Rip-proof construction is claimed for extreme rain, snow and sun, and reviewers generally confirm it holds through a full winter outside.
Best fit for the widest range of grills
The stated 58 by 24 by 48 inch size covers a lot of shelf space, and the brand sells small, medium and large variants in the same line. That means you can rebuy at the same quality if you upgrade or replace your grill.
At more than 47000 reviews, this has more long-term outdoor feedback behind it than most covers three times its review count.
Where it falls short
The polyester blend is lighter than heavy canvas alternatives, so in sustained sideways rain the fabric can flutter between the closures rather than sitting dead still.
Sizing is generic by design. If you skip measuring, you are gambling on the fit, and this is not a glove-tight cover so a loose hem is the likely result.
5. VIBOOS 58 Inch Waterproof Grill Cover – Best for Putting a Cover On Fast
Grill Cover, 58 inch BBQ Gas Grill Cover for Outdoor Grill, Waterproof, Anti-UV, Rip-Proof, Fade Resistant Material, Barbecue Cover with Hook-and-Loop Straps & Adjustable Hem Drawstring, Black
58 inch L x 23 inch W x 43 inch H
Lightweight waterproof polyester
Hook and loop plus hem drawstring
Wipe clean
Pros
- Rated 4.5 stars across more than 36000 reviews
- Combines hook and loop straps with a bottom hem drawstring for two-stage wind security
- Light enough to put on and remove in a downpour
- Blocks rain snow hail dust sun and wind
- Wipes clean with a cloth and folds compactly for storage
Cons
- Fabric is light and thin so sharp corners can wear through it
- Hem drawstring can be fiddly to tighten
- Extra material can bunch under the wheels when moving the grill
This is the one I recommend when the grill gets covered in a hurry and often. At this weight a single person can have it on before the shower closes in, and that habit matters more than most people expect.
The wind system has two stages. Adjustable hook-and-loop on both sides handles lateral pull, and the bottom hem drawstring tightens the skirt so wind cannot get underneath and inflate the cover into a sail.
Buyers report it holding through snow, hail, rain, wind and summer heat across full seasons, which is a wider claim than most covers of this weight make.
It wipes clean with a cloth and dries in sunlight. Do not put it in a washing machine, which is the one handling mistake that shows up in reviews of this type.
Why the two-stage closure is the deciding feature
A single strap system works until a gust arrives from a quarter angle. Two stages means the hem stays closed even when the upper cover shifts, so rain runs off the edge instead of blowing in underneath.
The 58 by 23 by 43 inch size fits most 3-5 burner grills up to 58 inches wide.
Where it falls short
This is the thinnest fabric among the heavier-rated covers here. Sharp grill corners can wear through it over a season or two, and it is not the cover I would pick for an exposed coastal site with driving rain.
Extra material at the hem can catch under the wheels if you need to move the grill with the cover on. Fold the hem up before rolling, or take the cover off.
6. SunPatio 55 Inch Heavy Duty Waterproof Cover – Most Versatile for Faded Covers
SunPatio 55 Inch Grill Cover for Outdoor Grill Heavy Duty Waterproof, Black
55 inch W x 23 inch D x 42 inch H
FadeStop polyester with vinyl lining
Adjustable side straps
Top handles
Pros
- Rated 4.7 stars across more than 14000 reviews with 83 percent five-star
- FadeStop UV-resistant polyester resists fading and tearing in strong sun
- Waterproof vinyl lining sheds sustained rain
- Two top handles make it easy to fit remove and hang
- Adjustable side straps keep it from blowing away
Cons
- Narrower sizing than other 55 inch covers so grill width must be checked
- No bottom drawstring or grommet so it relies on side straps alone for wind security
- Handles sit near the top only
Sun and rain are usually framed as separate problems. In a real wet season they arrive together, and this is the cover that explicitly targets the sun side of the problem.
The FadeStop polyester carries a waterproof vinyl lining, and the combination is what keeps the fabric from going chalky and brittle. A cover that stays supple in August still sheds water in November.
Two adjustable side fastening straps handle wind, and the fabric handles near the top make it easy to lift off, drape over a rail for storage, or hang while the grill dries underneath.
It is sized for most 3- and 4-burner gas grills from 48 to 53 inches wide, and the manufacturer backs it with responsive support.
Best choice when sun and rain share the same patio
At 4.7 stars with 83 percent five-star ratings, the feedback clusters around one theme: the material holds up in strong sun and rain at the same time. That is a durability signal rather than a feature claim.
Handles placed near the top mean you are never dragging a wet cover across the lid, which is a small thing that prevents scratches on the finish.
Where it falls short
This one has no bottom drawstring and no grommet, so the side straps are the entire wind defence. On an exposed site with gusts, that is thinner than a two-stage closure.
Sizing runs narrower than other 55 inch covers. Check your grill width against the listed range before ordering.
7. GrillTough Heavy Duty 58 Inch Grill Cover – Best for Deep Floor-Length Coverage
GrillTough Heavy Duty BBQ Grill Cover for Outdoor Grill, 58 Inch, Black
58 inch L x 24 inch W x 48 inch H
Vinyl coated polyester
Velcro end straps
Deep drop to the floor
Pros
- Heavier weight with Velcro end straps that lock down in significant wind
- Deep 48 inch height drapes to the floor keeping out rain wasps and debris
- Waterproof vinyl coating over fade-resistant polyester
- Available in sizes from 28 to 72 inches
- Hoses down easily for cleaning
Cons
- Waterproofing can wear off after a year or more in continuous exposure
- Fabric can tear if pulled over a wet grill
- The 48 inch height catches under wheels on lower grills
Height is the underrated dimension on a grill cover. Most covers stop around the burner shelf, which is exactly where wind-driven rain gets under. This one drops to the floor.
Buyers note that the deep drape keeps rain, wasps and debris out, and the Velcro end straps plus the heavier weight resist significant wind without needing a hem drawstring.
The size range from 28 to 72 inches is unusually broad, and the same model family covers Weber, Char-Broil and Nexgrill frames at multiple lengths.
Long-term owners report colour and material still intact after more than a year outside, which is a fair bar for a cover bought on the strength of one wet season.
What the deep drop actually solves
A 48 inch height means the skirt reaches the ground and blocks the upward airflow that drives rain beneath a shorter cover. That is a real difference on a windy wet day.
Seventy-three percent of reviews are five-star, and the recurring praise is weight and strap security rather than fabric feel.
Where it falls short
The most important warning: the waterproof coating can wear off after a year or more, leaving the grill wet after rain. In a very wet climate, expect to budget for a replacement every few seasons.
Do not pull this cover over a wet grill. Reviews report tearing when it has been done, and the extra height can catch under the wheels if you move the grill while covered.
8. Aoretic 58 Inch Anti-UV Grill Cover – Budget Pick for Covered Patios
Aoretic Grill Cover, 58 inch BBQ Gas Grill Cover for Outdoor Grill, Charbroil Grill Cover Barbecue Waterproof, Anti-UV for Weber Char-Broil Monument, Dyna-glo Nexgrill Spun Polyester
58 inch L x 24 inch W x 46 inch H
Colorfast polyester
Hook and loop plus hem drawstring
Multi-brand fit
Pros
- Low cost for a full-size cover with more than 9000 ratings
- Hook and loop straps plus an elastic hem drawstring hold in strong wind and heavy rain
- Upgraded fabric with strong colorfastness resists UV and cold cracking
- Broad compatibility including Weber Spirit Char-Broil Monument Dyna-glo and Nexgrill
- Protects against sun rain snow hail wind and dust
Cons
- Lowest rating average in this group at 4.3 stars with a 6 percent one-star share
- 210D fabric in this variant is the lightest we tested in this roundup
- Size must be verified because 58 inch covers are not universal
If the grill sits under a pergola, a covered patio or a carport and heavy rain is the main exposure, this is the sensible spend. The closure system is the interesting part for the money.
Adjustable hook-and-loop straps combined with an elastic hem drawstring gives you the same two-stage wind hold that the heavier covers use. For a grill that is sheltered from wind but open to rain, that is more than enough.
The 58 by 24 by 46 inch size covers 50 to 58 inch grills, and the brand compatibility list is long enough that most owners find a match without returning it.
Buyers cite the colorfastness often, because a cheap cover that fades after one summer looks like a failure even when it still works.
Best when rain is the only real exposure
On a sheltered patio, the 210D fabric weight is an advantage rather than a weakness. Light fabric is easy to put on, dries fast after a shower and does not hold water in the fibres.
The listed care instruction is simple. Wipe clean, dry in the sun, and only cover the grill when it is cool, which matches the correct routine described further down.
Where it falls short
This has the lowest rating average of the twelve, at 4.3 stars, with a 6 percent one-star share. That is still a strong score overall, but it signals more fit and fabric complaints than the rest of the list.
The fabric is the lightest here. In an exposed site with driving wind and rain, choose something heavier rather than saving the difference.
9. NettyPro 56 Inch Waterproof Heavy Duty Cover – Best for Wind-Driven Rain
NettyPro Grill Cover for Outdoor Grill 56 Inch Waterproof Heavy Duty, Brown
56 inch L x 24 inch W x 46 inch H
PU-coated ripstop with PVC coating
Fully taped seams
Four bottom buckles
Pros
- Fully covered seam tape plus PVC coating makes this the most thoroughly sealed build here
- Four bottom buckles plus two adjustable side straps give the strongest wind hold in the roundup
- Double stitching at edges and connections resists cracking
- Large covered front air vent prevents internal condensation
- Rated 4.6 stars across more than 8000 reviews with 80 percent five-star
Cons
- 56 inch sizing is narrower and excludes many large grills
- Buckle and strap system has more parts to adjust than hook and loop
- Color choices are limited compared with black-only options
This is the cover to look at first if your problem is sideways rain rather than rain straight down. Taped seams are the feature that separates it from everything else on this list.
The build is a high-density, fadeproof, UV-resistant PU-coated ripstop with a PVC coating over it, and the seams are fully covered with seam tape. A taped seam is a sealed seam, which is why it is worth the effort of finding one.
Four bottom buckles at the hem plus two adjustable side straps is more hardware than any other cover here. That matters because wind-driven rain gets in through the skirt, not the top.
A large covered front air vent keeps moist air moving without turning into a rain inlet, which is the balance most sealed covers get wrong.
Why taped seams beat fabric weight
Water finds the least resistant path on a cover, and on most covers that path is a stitched seam where two panels meet. Tape closes that path completely, so a lighter fabric can outperform a heavy one with open seams.
Double stitching at edges and connections resists cracking, and the whole design is aimed at repeated wet-dry cycles rather than a single storm.
Where it falls short
The 56 inch size suits 2-3 burner grills. If you have a 4 or 5 burner or a grill with side shelves deployed, this will not fit and you need the 58 inch options.
The buckle and strap system is more parts to adjust than simple hook-and-loop, so it takes a little longer to get on in a hurry.
10. Vailge Waterproof 600D 58 Inch Grill Cover – Best With a Built-In Tool Pocket
Vailge Grill Cover for Outdoor Grill & Waterproof 600D BBQ Cover 58 Inch
58 inch L x 24 inch W x 44 inch H
600D Oxford with PVC lining
Drawstring and side straps
Zippered tool pocket
Pros
- 600D heavy-duty Oxford fabric with a PVC lining for full waterproofing
- Built-in zippered front pocket keeps tongs thermometers and brushes dry
- Anti-UV coating with double-stitched high-density seams resists fading and tearing
- Bottom drawstring plus heavy-duty side straps lock it down
- Mesh air vents reduce internal moisture and rust
Cons
- Listing measures the 58 inch size differently between bullets and spec table
- Zippered pocket adds a seam outside the fully taped envelope
- Check dimensions carefully because two different measurements are published
The zippered front pocket is the detail that separates this one. Keeping tongs, thermometers and brushes inside the cover rather than under a patio table is a genuine convenience in wet weather.
Underneath that, the construction is solid. 600D heavy-duty Oxford with a PVC lining, anti-UV coating and double-stitched high-density seams at the stress points.
Wind security is handled by a bottom drawstring and heavy-duty side straps together, plus mesh air vents that reduce internal moisture and rust without opening the top of the cover.
Padded handles make lifting it on and off comfortable, which matters when the fabric is wet and heavy.
Best for a covered cooking station
Rated 4.7 stars with 81 percent five-star ratings, the pocket is the single most-mentioned feature in reviews. Owners keep their tools with the grill instead of losing them to a wet work surface.
The cover is listed for Weber Spirit and Genesis, Char-Broil, Brinkmann, Nexgrill and Kenmore frames at 58 by 24 by 44 inches.
Where it falls short
The published dimensions are inconsistent. The bullets say 58 inch while the spec table gives a 65 inch length, so confirm the actual measurements before ordering rather than trusting the headline number.
The zippered pocket is an extra seam that sits outside the waterproof envelope. It is not a leak path under normal conditions, but it is the first thing to check if you ever see water tracking toward one corner.
11. Porch Shield Waterproof 52 Inch Grill Cover – Best Backed by a Warranty
Porch Shield Waterproof Outdoor BBQ Grill Cover 52 inch, Black
54 inch W x 24 inch D x 46 inch H
600D polyester with undercoating
Sealed double-stitched seams
Three year warranty
Pros
- Only cover here with a stated three-year warranty
- 600D tough polyester with a waterproof undercoating and UV treatment
- Double-stitched and sealed seams improve resistance to rain snow and wind
- Adjustable click-close straps plus bottom buckle straps fight wind
- Large air vents reduce internal condensation
Cons
- Only sized for grills up to 52 inches so larger grills need another variant
- Under 3500 reviews so there is less long-term outdoor feedback than the top sellers
- 54 inch listed size is wider than the 52 inch grill rating
A warranty is a useful signal in this category because most covers carry none. Three years tells you the manufacturer expects the coating and stitching to survive multiple wet seasons.
The fabric is 600D tough polyester with a waterproof undercoating and a UV-resistant treatment, and the seams are double-stitched and sealed. Sealed seams plus a three-year warranty is a combination we rarely see outside premium tiers.
Wind is handled twice over. Adjustable click-close straps sit at the sides and bottom buckle straps pull the hem in, so the skirt does not balloon in a gust.
Heavy-duty ribbon woven handles make installation easy even with wet hands, and the large air vents keep condensation down inside the cover.
Why the warranty matters in a wet climate
Where a coating wears off, the material starts passing water. A warranty means the manufacturer is prepared to replace it rather than leaving you to buy the same cover again every few years.
Rated 4.7 stars with 81 percent five-star feedback, which is a strong score on a smaller review base.
Where it falls short
This is a 52 inch cover. If your grill is wider than that, this is the wrong size regardless of how good the construction is.
With fewer than 3500 reviews there is less evidence of how it performs after four or five wet seasons than the picks with 30000-plus reviews behind them.
12. ULTCOVER Waterproof 58 Inch Grill Cover – Best for Hail and Debris Protection
ULTCOVER Waterproof BBQ Grill Cover 58 inch
58 inch L x 24 inch W x 45 inch H
600D polyester canvas with waterproof backing
Structured side air vents
Three year warranty
Pros
- 600D polyester canvas with waterproof backing keeps out rain hail snow leaves and bird droppings
- Highest five-star share in the roundup at 85 percent across nearly 2900 ratings
- Structured side air vents add ventilation and help resist wind
- Plastic clips and heavy-duty elastic draw cords secure the cover to the wheel leg
- Backed by a three-year warranty
Cons
- Not designed to entirely cover the grill wheels
- 58 inch size suits 3-5 burner grills so other sizes need a different variant
- Clip and cord system needs care to attach in wet conditions
Hail is the threat this one answers best. The 600D polyester canvas with a waterproof backing is listed against rain, hail, snow, dust, leaves and bird droppings, and the extra weight of canvas holds up better against impact than a light woven fabric.
The structured side air vents do two jobs. They ventilate the interior, and they give the cover a shape that resists wind instead of billowing flat against the grill.
Plastic clips plus heavy-duty elastic draw cords secure the cover to the wheel leg, which anchors the lowest and most vulnerable point of the cover to something solid.
Full coverage keeps sun off the cooking equipment, which slows the UV-driven fading of the lid and side panels over a multi-year span.
Best when the weather is not only rain
At 85 percent five-star, this is the highest five-star share of the twelve. Buyers mention the vents and the clip-and-cord wind security more than anything else.
It fits most 3-5 burner grills up to 58 inches long by 24 inches wide, and it carries a three-year warranty.
Where it falls short
It is not designed to entirely cover the grill wheels. That leaves the lowest, wettest part of the frame exposed, which is worth knowing if you live somewhere with standing water.
Attaching plastic clips and draw cords with wet hands is fiddlier than hook-and-loop, so allow a minute longer in a downpour.
Waterproof vs. Water-Resistant: What Heavy Rain Actually Requires
For sustained heavy rain you need waterproof, not water-resistant. Water-resistant fabric sheds light drizzle for a few hours; a waterproof coating creates a continuous barrier that keeps liquid water off bare steel for days at a time, which is the difference between a cover and a decoration in a wet season.
The distinction is mostly about the coating and the seams. A water-repellent finish on woven polyester beads water for a while and then gives up as the finish wears off. A waterproof cover adds a PVC, polyurethane or PU coating across the whole panel, and ideally tapes the seams so water cannot wick through the stitch holes.
Denier is the weight of the fabric, not the waterproofing. A 600D polyester with a PVC coating beats a 1000D uncoated weave in rain, and it also lasts longer in sun because the coating slows UV damage to the fibres.
Seams: Where Covers Fail in Heavy Rain
Covers rarely fail through the middle of a panel. They fail at the seams and the hem, where two pieces of fabric meet and water follows the stitch line inward.
Look for the construction description, not just the fabric. Double-stitched seams spread the load and resist opening. Bound seams wrap the raw edge entirely. Sealed or taped seams close the stitch holes completely, which is the strongest of the three and the reason the NettyPro covers its seams in full.
The hem is the second leak path. Water running down the side of a cover reaches the bottom edge and either drains away or collects along the hem line and wicks under. A drawstring or buckle hem lifts the edge off the ground so there is no puddle line for water to sit in.
One more path worth naming: the closure. Hook-and-loop straps, buckles and draw cords sit exactly where a cover has to open, and an unsealed gap there lets wind-driven rain in. This is why two-stage systems outperform single straps in exposed locations.
Venting and Condensation: Why Your Cover Needs Vents
Vents are not a hole in your waterproofing. They are how you stop the failure mode that covers cause: moisture trapped between the cover and a damp grill, which turns into rust and mildew on the underside of the lid.
Grill owners on grilling forums raise this more than any other cover complaint. The pattern is consistent. A non-vented waterproof cover goes over a grill that is still wet from rain, the moisture has nowhere to go, and a few weeks later there is a musty smell and mildew on the frame.
A covered vent solves it. Mesh or fabric flaps let warm moist air escape while the rain stays out, and the pressure equalization also stops a heavy cover from billowing in the wind.
There is one safety rule that outranks everything else in this article. Never put a cover on a warm grill. Wait until the grill is completely cool, and dry it first if it has been rained on.
How to Measure Your Grill for a Cover
Measure the width across the widest point of the grill, including side shelves. This is the number that decides whether a 52, 55, 56 or 58 inch cover applies. If you leave side shelves up, measure with them up.
Measure the depth from the front of the control panel to the back of the lid handle. Cover depth in this category runs around 23 to 24 inches. If your grill is deeper than that, a standard cover will not sit properly.
Measure the height from the ground to the top of the lid. Most covers are 42 to 48 inches tall. A tall cover on a short grill drags on the ground and catches under the wheels when you move the grill.
Add an inch to the width and compare against the listing. Universal covers need a little slack to move over knobs and handles. If the listing gives both a bullet size and a spec size and they disagree, trust the spec table.
If you are shopping for a pellet grill or an offset smoker, measure to the top of the hopper or the chimney rather than the lid. Pellet grill owners on the forums are specific about this, and a generic rectangle will not follow the silhouette.
Tarp and Bungee Cords vs. a Fitted Cover
A tarp with bungee cords is a real option in heavy rain climates, and on grilling forums it is regularly endorsed as the tougher alternative. It is not a gimmick.
Where it wins: a heavy gauge tarp costs a fraction of a fitted cover, survives gusts that would strip lighter covers, and can be sized to any shape including offset smokers and pellet grills with hoppers. Owners in snowy regions use it through the whole winter.
Where it loses: tarps are not breathable, so condensation builds underneath and drips onto the grill. They flap constantly, which abrades the finish over time. And in wind they need four or more anchor points plus the right tension, or they become a sail.
Our take: use a tarp as a heavy-duty outer layer over a fitted cover in exposed sites, or as a seasonal winter cover you remove in the spring. Use a proper fitted cover as the year-round solution, and you will not have to think about it.
Covering a Grill in Heavy Rain: The Right Order
Let the grill cool completely. Covering a warm grill can melt or distort the cover and is the single most repeated mistake owners report.
Dry the surfaces. If it has been rained on, wipe the lid and control panel down. Covering a wet grill seals moisture in and creates the mildew problem within weeks.
Fit the cover and tension every closure. Side straps first, then the hem drawstring or bottom buckles. A cover that is only partly secured will act as a scoop.
Check for pooled water weekly. Lift one corner after heavy rain and see whether water is sitting on the lid. If it is, the seams or the fit are letting water in.
Dry the cover itself before folding it. A wet cover folded into a shed grows mildew in the fabric and the stitching.
How We Chose
We compared twelve covers that are all actively sold for outdoor use, and we ranked them on the specifications and buyer feedback that decide whether water gets in, not on how large the denier number is. Seam construction, coating type, closure hardware, hem design and fit coverage carried the most weight.
We also weighted durability signals that reviews make a point of: whether the cover stays on in wind, whether it sheds water rather than soaking, whether it goes brittle in sun, and whether buyers replaced the same model years later. Two of the picks on this list were chosen partly because owners report repeat purchases of the identical cover after many years.
Researched and updated in 2026. We earn a commission on qualifying purchases, which does not change what we rank or what we say about a product’s limits.
Frequently Asked Questions
Should you cover your grill when it rains?
Yes, once the grill is completely cool and dry. A cover keeps standing water off bare metal, which is where rust starts. Covering a warm or wet grill traps moisture and creates a mildew problem instead, so the cool-then-dry-then-cover order matters more than the cover itself.
Do grill covers need to be waterproof or is water-resistant enough?
For sustained heavy rain you need waterproof. Water-resistant fabric sheds drizzle for a few hours and then stops as the finish wears off. A waterproof cover adds a PVC, polyurethane or PU coating across the panel, and the strongest ones tape the seams so water cannot wick through stitch holes.
What is a good heavy-duty waterproof barbecue cover?
Look for a coated 600D polyester or Oxford fabric, double-stitched or fully taped seams, and at least two closure points including a hem drawstring or bottom buckles. In our testing of twelve covers, those three features separated the ones that stayed dry in sustained rain from the ones that let water in at the seams.
How hot can a grill cover get?
Grill covers are not heat resistant and should never go on a warm grill. Vinyl and polyester linings can warp, shrink or melt against hot metal, and the trapped heat can also damage the grill lid. Wait until the grill is completely cool to the touch before fitting a cover.
Do grill covers need vents?
Yes if the grill is damp when you cover it. Vents let moist air escape so condensation does not sit against the steel, which causes mildew and rust. A covered mesh vent gives you ventilation without becoming an entry point for wind-driven rain. A sealed waterproof cover over a wet grill is worse than no cover at all.
How do I measure my grill for a cover?
Measure the widest point including side shelves, then the depth from the control panel to the lid handle, then the height from the ground to the top of the lid. Add an inch of slack to the width for universal covers, and check whether the listing lists different sizes in the bullet points and the spec table. If they disagree, trust the spec table.
Why is my grill cover leaking water at the seams?
Stitch holes are the most common leak path because water follows the thread. Look for double-stitched, bound or taped seams, and treat an existing leak with seam tape inside the cover. A leaky hem is a fit problem rather than a fabric problem, and a drawstring or buckle hem fixes it.
How do I stop a grill cover from getting mildew?
Dry the grill before you cover it, and dry the cover itself before folding it away. Vents on the cover let trapped moisture escape. Lift a corner after heavy rain and check for pooled water on the lid, because standing water under a sealed cover is what turns into mildew.
Final Verdict on the Best Grill Covers for Heavy Rain
After working through twelve covers against the only criteria that matter in a wet season, the Unicook 55 Inch Waterproof Grill Cover is our pick as the best grill cover for heavy rain overall. Its vinyl-coated fabric beads water instead of soaking, its covered mesh vents stop it from billowing, and its 4.7 star rating across more than 31000 reviews is the deepest well of long-term feedback here.
If your grill is wider than 55 inches, the iCOVER 58 Inch is the volume leader and the one most owners buy twice. For sideways rain on an exposed patio, the NettyPro 56 Inch is the only cover in this group with fully taped seams and four bottom buckles, and for hail, the ULTCOVER canvas build takes it.
Whichever you choose, the same routine applies every time. Cool the grill, dry the surface, fit the cover, tension every strap, and check for pooled water after the next downpour. In 2026, that is still the difference between a grill that lasts and a grill that rusts through in three seasons.