10 Best Solar Pool Covers 2025 in the United States

The BigXwell Solar Pool Cover is a 16-mil thick polyethylene cover designed for in-ground pools, measuring 16 by 32 feet in a rectangular shape. Its blue color helps it absorb and trap solar heat effectively, which warms your pool on sunny days and helps maintain temperature when it's cloudy or cool. This makes it a great choice if you want to swim in warmer water without extra heating costs. The cover features thousands of small thermal bubbles that boost heat retention and reduce water evaporation by up to 95%, saving you from frequent refills and water waste.

It’s lightweight and easy to handle, and can be trimmed with scissors to fit pools of various shapes, adding versatility. The material is durable enough to withstand harsh weather, but since it's polyethylene, it requires gentle care like hand washing and air drying to maintain longevity. One downside is that it floats on the water and doesn’t have a rigid locking system, so it may shift during windy conditions. Also, while the cover offers good insulation and UV protection, it’s primarily suited for use during the warmer months and may not be as effective in extreme cold.

If you have a rectangular in-ground pool and want a cost-effective way to keep your water warm and reduce evaporation, this cover offers a combination of durability and practical features that make it a solid choice.

The In The Swim 20' x 40' Premium Blue Rectangle Solar Pool Cover is designed to help warm your pool water by up to 15 degrees, thanks to its 12 mil thickness. This thickness strikes a good balance, making it durable enough to retain heat and protect the pool water from evaporative loss during cooler nights. The light blue color is chosen to optimize heat absorption without overheating, which can be a plus for extending your swimming season in both above-ground and inground pools.

The rectangular size covers standard pools well, and its material is made to handle typical pool conditions, but it’s important to maintain proper water chemistry—chlorine below 2.5 ppm and pH above 7.2—to avoid damage to the cover. Using a solar cover reel is recommended to make handling easier and to prolong the cover’s life by reducing wear and tear. Customers rate it positively, reflecting satisfaction with its performance and value.

Weighing nearly 50 pounds, the cover can be a bit heavy, which might make it tricky to handle without assistance. This cover is suitable for pool owners looking for a reliable and effective way to heat their pool and reduce water evaporation, especially if they are mindful of pool chemistry and use accessories like a reel for convenience.

The Sun2Solar Clear 24 ft Round Pool Solar Cover is designed to help pool owners heat their water naturally by harnessing the sun’s energy. Made from durable resin material, it features a clear color that allows sunlight to pass through efficiently, which helps increase water temperature by up to 15 degrees. Its round 24-foot size is suitable for many above ground and inground pools, with a floating design that’s easy to install and remove.

The cover works well to retain heat after sunset, thanks to its thermal insulation properties, and reduces water evaporation by up to 95%, which means fewer chemicals and less refilling. UV resistance is built in, so the cover holds up under sun exposure without deteriorating quickly. Additionally, it helps keep leaves and debris out of the pool, cutting down on cleaning time. It’s a solid clear design, so while effective for heating, it won’t offer shading or privacy.

This solar blanket is a practical choice for pool owners looking to save on heating costs and water evaporation, especially if your pool matches the 24-foot round shape. The cover requires hand washing for care, which might be less convenient than machine-washable options.