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6 Best Solar Pool Covers That Keep Heat In and Evaporation Out
If you want to keep your pool warmer and reduce water loss, the right solar cover can make a noticeable difference.
You should compare thickness, fit, and durability, since each cover manages heat retention a little differently.
Some of the best options also make trimming and storage easier.
The main challenge is knowing which one truly fits your pool, and that is where the top picks begin to stand out.
| BigXwell Solar Pool Cover for In-Ground Pools |  | Best Heavy-Duty | Size: 16 x 32 ft | Thickness: 16 mil | Shape: Rectangle | VIEW LATEST PRICE | Read Our Analysis |
| VEVOR Solar Pool Cover 32 x 16 ft |  | Best Overall | Size: 32 x 16 ft | Thickness: 16 mil | Shape: Rectangle | VIEW LATEST PRICE | Read Our Analysis |
| VEVOR Solar Pool Cover 32 x 16 ft |  | Best Premium | Size: 32 x 16 ft | Thickness: 16 mil | Shape: Rectangle | VIEW LATEST PRICE | Read Our Analysis |
| VEVOR Solar Pool Cover 28 x 14 ft |  | Best Mid-Size | Size: 28 x 14 ft | Thickness: 16 mil | Shape: Rectangle | VIEW LATEST PRICE | Read Our Analysis |
| In The Swim 24′ Blue Round Solar Pool Cover |  | Best Round | Size: 24 ft round | Thickness: 8 mil | Shape: Round | VIEW LATEST PRICE | Read Our Analysis |
| VINGLI 12Mil Rectangular Solar Pool Cover 16’x32 |  | Best Budget | Size: 16 x 32 ft | Thickness: 12 mil | Shape: Rectangle | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
BigXwell Solar Pool Cover for In-Ground Pools
If you want a heavy-duty cover for a large pool, the BigXwell Solar Pool Cover is a strong choice. It comes in a 16 x 32 ft rectangular size and is made from 16-mil polyethylene with thousands of thermal bubbles that help trap heat. The cover floats on the water, reduces evaporation by up to 95%, and helps keep the pool warmer on sunny days, cloudy days, and cool nights. You can trim it with scissors for a custom fit, and its lightweight design makes it easy to handle. Clean it with mild detergent, then let it air-dry.
- Size:16 x 32 ft
- Thickness:16 mil
- Shape:Rectangle
- Material:Polyethylene
- Heat Retention:Thermal bubbles
- Evaporation Reduction:Up to 95%
- Additional Feature:Thermal bubble structure
- Additional Feature:Cut-to-fit scissors
- Additional Feature:Drawstring closure
VEVOR Solar Pool Cover 32 x 16 ft
VEVOR’s 16 mil, 32 x 16 ft cover delivers strong heat retention for large pools. It includes a durable polyethylene blanket with thousands of micro bubbles and a dual air layer that helps trap heat during the day and hold it overnight. It can reduce evaporation by up to 95%, so you can use less water and fewer chemicals. You can trim it for a custom fit on inground or above-ground pools. It stands up well to sun exposure, resists tearing, and helps extend the swim season. For best results, avoid highly acidic or chlorinated water.
- Size:32 x 16 ft
- Thickness:16 mil
- Shape:Rectangle
- Material:Polyethylene
- Heat Retention:Dual air layer
- Evaporation Reduction:Up to 95%
- Additional Feature:Dual air layer
- Additional Feature:Micro temperature-locking bubbles
- Additional Feature:Tear-resistant build
VEVOR Solar Pool Cover 32 x 16 ft
For larger pools, this premium VEVOR 32 x 16 ft cover delivers strong heat retention and evaporation control. It uses a 16 mil polyethylene blanket with thousands of air bubbles that can raise water temperature by 8 to 15°C while reducing evaporation by up to 95%. Its thick blue construction resists fading, warping, and tearing, so it holds up well in the sun. You can trim it to fit inground or aboveground pools, and it floats easily for simple use. It also blocks debris, so you spend less time cleaning and more time swimming.
- Size:32 x 16 ft
- Thickness:16 mil
- Shape:Rectangle
- Material:Polyethylene
- Heat Retention:Air bubbles
- Evaporation Reduction:Up to 95%
- Additional Feature:Blocks leaves and dust
- Additional Feature:Foldable design
- Additional Feature:Pull-on installation
VEVOR Solar Pool Cover 28 x 14 ft
The VEVOR Solar Pool Cover is suited for mid-size pools that need stronger heat retention and reduced evaporation. You get a 16 mil PE blanket that absorbs daytime sun, reduces overnight heat loss, and can raise water temperature by 8 to 15°C, depending on conditions. Its thousands of tiny bubbles block up to 95% of evaporation, helping you conserve water. You will also appreciate its resistance to fading, tearing, and warping under harsh sun. It helps keep out leaves and dust, reduces maintenance, and you can cut it to fit inground, above-ground, or spa shapes for broad coverage.
- Size:28 x 14 ft
- Thickness:16 mil
- Shape:Rectangle
- Material:Polyethylene
- Heat Retention:Bubble insulation
- Evaporation Reduction:Up to 95%
- Additional Feature:8–15°C temperature boost
- Additional Feature:Fading-resistant material
- Additional Feature:Commercial spa compatible
In The Swim 24′ Blue Round Solar Pool Cover
In The Swim’s 24-foot blue round cover is a practical choice if you want efficient heat retention for a round pool. It uses solar energy to warm your water naturally, then helps hold that heat overnight, which can extend your swimming season without extra energy costs. It also reduces evaporation, so you lose less water to sun and wind and need fewer refills. The 8-mil polyethylene construction feels light yet durable, and the cut-to-fit design lets you trim it with scissors for ladders, steps, or unusual contours. It also helps reduce debris, chemical use, and upkeep time.
- Size:24 ft round
- Thickness:8 mil
- Shape:Round
- Material:Polyethylene
- Heat Retention:Solar heating
- Evaporation Reduction:Water loss reduction
- Additional Feature:Round pool fit
- Additional Feature:8-mil lightweight build
- Additional Feature:Cut-to-fit scissors
VINGLI 12Mil Rectangular Solar Pool Cover 16’x32
VINGLI’s 12-mil blanket is a smart choice if you want affordable heat retention. It includes a 16′ x 32′ rectangular cover with transparent blue bubbles that absorb sunlight during the day and help return that warmth to your pool. It also slows evaporation, so you lose less water and maintain steadier levels. In addition, it blocks leaves and debris, which makes cleaning easier. Use the bubble side down, and do not worry if it looks a little flat before sun exposure. You can trim it for odd-shaped pools and pair it with a reel for easier handling.
- Size:16 x 32 ft
- Thickness:12 mil
- Shape:Rectangle
- Material:Polyethylene
- Heat Retention:Bubble heating
- Evaporation Reduction:Water loss reduction
- Additional Feature:Bubble side down
- Additional Feature:Welded seams
- Additional Feature:Pool cover reel compatible
Factors to Consider When Choosing Solar Pool Covers
When choosing a solar pool cover, make sure it matches your pool’s size and shape so it fits properly and performs efficiently. Compare material thickness as well, since it affects heat retention, evaporation control, and how well the cover holds warmth. Durability is also important, because a longer lasting cover can reduce costs and maintenance over time.
Pool Size And Shape
Pool size and shape should guide your solar cover choice from the start. Measure your pool’s maximum length and width, or its diameter if it is round, then add a few inches on each side so you have enough material to cover the surface and trim it cleanly. If your pool has an irregular or freeform design, buy a cover that is large enough to cut around steps, ladders, and shallow shelves. You should also consider whether your pool is inground or above ground, since this affects edge overlap and attachment methods. If you use a reel or automatic system, check that the cover’s dimensions fit the rolling width and that its weight will not strain the equipment.
Material Thickness
Thickness affects how well your solar pool cover holds heat, how long it lasts, and how easy it is to handle. You will usually see thicker options in the 12 to 16 mil range, and they tend to insulate better than thinner films, especially on cool nights. That extra material also improves tear and puncture resistance, so your cover can stand up better to sun, stretching, and regular use. The tradeoff is weight. A thicker cover can feel stiffer, be harder to spread and lift, and may not work as smoothly with every reel. It often costs more upfront, but it may need replacing less often. In warmer climates, a thinner cover can work well. In colder areas, choose the thickest practical option.
Heat Retention
Heat retention depends on how well a cover traps solar energy during the day and holds that warmth after sunset. You will usually get better results from thicker covers because they insulate more and slow nightly heat loss. Bubble structured polyethylene works especially well because it captures sunlight and adds an insulating air layer. If you choose a dual layer design or a denser bubble pattern, you can enhance thermal retention further by creating extra air pockets and reducing conductive transfer. Fit matters too. A cover that hugs the pool tightly leaves less exposed edge, so stored warmth stays in the water. In good conditions, a quality solar cover can raise daytime temperatures several degrees and help retain that heat overnight, although results vary by climate and cover quality.
Evaporation Control
Cutting evaporation is one of the biggest advantages of a solar pool cover, and a bubble film surface can reduce water loss by up to about 95%, while also cutting refill needs. You will get the best results when the cover fits your pool closely, with full surface coverage and no large gaps. Thicker options, such as 12 to 16 mil, usually seal in moisture better because they form a stronger vapor barrier and resist tears that can create leaks. Since the cover floats directly on the water, it blocks heat driven evaporation and also reduces wind exchange. Use it consistently, especially overnight and during hot or windy weather, and you will save far more water than with occasional use.
Durability And Lifespan
While evaporation control saves water and heat, a cover’s durability determines how long those benefits last. You will usually get better longevity from thicker covers, especially 12 to 16 mil films, because they resist tears and punctures better than 8 mil options. You should also look for UV-resistant polyethylene, since strong formulations hold up longer under sun exposure without cracking or breaking down. Reinforced seams, welded edges, and double-layer designs add extra tear resistance and can extend service life compared with single-sheet construction. Your care matters too. Clean the cover gently, skip harsh chemicals, and store it out of direct sun whenever you are not using it. Local conditions also matter, because intense sunlight, chlorine, acidic water, and wind abrasion can shorten lifespan.
Fit And Customization
A solar pool cover only works well if it fits your pool closely, so start by measuring the maximum length and width, including steps and ledges, and choose a cover at least that size so you can trim it down for a precise fit. Match the shape to your pool plan, whether rectangular, round, or custom, and cut around ladders, spas, or odd contours with scissors. When you trim, leave a few inches of overlap all around; that small margin helps block gaps that would leak heat and increase evaporation. Also check thickness and flexibility. Films that are 12 to 16 mil usually resist tearing better during customization. For above-ground pools, a drawstring or pull-on closure can help you secure the fit, while floating styles often suit inground pools.
Ease Of Handling
Ease of handling matters just as much as fit, because you will use the cover often to keep heat in and debris out. Choose a thickness that feels sturdy but not bulky. 12 to 16 mil usually gives you solid puncture resistance without turning removal into a workout. Lightweight bubble style polyethylene helps you lift the cover by hand or manage it with a reel, so you will not strain your back. If your pool has ladders or steps, a cut to fit design that trims easily with scissors can prevent awkward edges and make daily use safer. Also check for drawstrings, reels, or other deployment features that speed up setup. Finally, pick a cover that folds, stores, and cleans easily so you can move it, dry it, and put it away with less hassle.
Frequently Asked Questions
How Do Solar Pool Covers Affect Chemical Consumption?
You’ll use fewer chemicals because the cover slows evaporation, so less chlorine and water are lost. It also blocks debris and helps stabilize temperature, which reduces dosing swings and keeps your pool balanced longer.
Can I Use a Solar Cover With an Automatic Pool Cleaner?
Yes, you can, but you’ll usually need to remove the solar cover first. Your cleaner can snag or tangle under it, so run the cleaner separately and re-cover the pool afterward.
How Should I Store a Solar Cover During Winter?
Roll it up like a sleeping bag, rinse it clean, dry it fully, and store it indoors away from sun, frost, and rodents. This will help extend its life and keep it ready for spring.
Do Solar Covers Work on Saltwater Pools?
Yes, you can use solar covers on saltwater pools. They trap heat and reduce evaporation just like they do in chlorine pools. Rinse the cover occasionally to help it last longer in salty conditions.
How Long Does a Solar Pool Cover Usually Last?
Solar covers usually last 3 to 7 seasons. You can extend their life by rinsing them, rolling them off daily, and storing them in a shaded place. Harsh sun, chemicals, and rough handling can shorten their lifespan quickly, especially on uncovered pools.
