Arizona summers are known for their extreme heat. When temperatures reach over 100°F, your pool can feel more like a warm bath than a place to cool off. But with a few simple tricks, You can keep your pool water cooler and more refreshing during those hot summer days.
1. Use a Pool Aerator:
A pool aerator is a small device that sprays water into the air. When the water lands back in the pool, it cools down slightly. This works best at night when the air is cooler. Using a pool aerator can lower your pool temperature by a few degrees without much effort.
2. Run the Pool Pump at Night:
Arizona nights are much cooler than the daytime, Especially in the desert. You can use this to your advantage by running your pool pump and filter at night. This helps move cooler water around and keeps the pool from getting too warm the next day.
3. Add Shade to Your Pool Area:
Direct sunlight heats your pool quickly. You can add shade to reduce the heat. Here are a few ways to do that:
- Hang shade sails over part of the pool.
- Use large patio umbrellas.
- Install a pergola or canopy.
Even partial shade helps a lot, especially in the afternoon when the sun is strongest.
4. Use a Pool Chiller or Heat Pump:
If you want a more powerful way to cool your pool, consider buying a pool chiller or a heat pump that has a cooling mode. These devices lower the water temperature more effectively but cost more. They are great for people who use their pool often during the summer.
5. Use a Pool Cover at Night:
Most people think pool covers keep water warm, but they can also help keep it cool. Use a solar cover at night to trap the cool air and slow down heating the next day. Just remember to take it off during the day otherwise, it will trap heat from the sun.
6. Install a Water Feature:
Waterfalls, fountains, or water jets help cool the pool. Moving water releases heat and stays cooler. Plus, they look nice and make relaxing sounds. These features are not just for decoration, they can really help with keeping your pool cool.
7. Use Light Colors Inside the Pool:
If you are building a new pool or updating an old one, choose light colors for the inside surface. Light colors reflect sunlight instead of absorbing it, which keeps the water cooler than dark colors. A Professional Pool Builder in Arizona can help you choose the best light colors for hot weather.
8. Partially Drain and Refill:
If your pool water is too hot and hasn’t been used in a while, you can drain some of it and add cooler water. This can help lower the temperature quickly. However, it’s not the best everyday solution. Water is precious in Arizona, and using too much can be wasteful and costly. Only try this if other cooling methods haven’t worked, and always check your local water use rules before doing it.
9. Plant Shade Trees or Shrubs:
You can plant trees or tall bushes around your pool to block some of the sun. Choose plants that don’t need a lot of water and don’t drop too many leaves into the pool. Over time, this will help keep your pool area cooler and more enjoyable.
Enjoy a Cooler Pool All Summer

Arizona summers can be intense, but your pool doesn’t have to feel that way. By using the simple tips above, you can keep your pool cool and comfortable all season. If you’re thinking about building a new pool or upgrading your current one, working with Arizona Pool Builders can make a big difference.
We understand the local climate and can suggest the best materials, equipment, and layout to keep your pool comfortable all season long.
Stay cool, enjoy your swim, and make the most of summer in Arizona!