When Should I Open My Pool for Summer?

Apr 21st 2023

close up of hand dangling in pool water as person relaxes in an orange pool float

As a pool owner, you probably check the weather forecast regularly in anticipation of swimming season. But when is that, exactly? When is the best time to open your pool?

The answer to that question varies by geographic area. In some parts of the country, the weather is warm enough to swim all year long. In other areas, swim season lasts just a few balmy months.

However, some general guidelines do exist.

Check the Temperature

If you want to know when it’s time to open your pool, check the temperature. The right time to open your swimming pool is when nights are free of frost and the daytime air temperature consistently reaches 70 degrees. You may find it helpful to check weather data from previous years to get some idea when this weather change typically occurs in your area.

This is a good rule of thumb, even if you use a pool heater.

Advantages of an Early Opening

Although it still may be too cool to swim, opening your pool just when the weather starts to warm up has several advantages.

First, everything is starting to grow again, including the algae in your pool. Taking off the cover, filling and cleaning your pool, balancing the water chemistry and running the pump helps avoid an algae nightmare.

Second, opening early means no one will be anxiously waiting at the edge of the pool, ready to jump in the second you give the go-ahead that it’s time to swim. Opening your pool as the weather just begins to warm should provide you with two or three weeks to complete the process without feeling rushed. It also allows time to replace any equipment that isn’t working properly.

open inground swimming pool with sprinkler

If the Weather Turns

Spring weather can be unpredictable. If the temperature suddenly plummets, cover your pool but leave the pump running. The weather will warm up again soon!

While You’re Waiting

If it’s still too soon to open the pool, you can prepare for that day by making sure you have all the supplies and chemicals you’ll need. If you need to purchase anything (including a new pool float or two), now’s the time!

Get things cleaned and organized so you’re ready to go.

The warm days of spring turn to the sizzling days of summer in a flash. Knowing when to open your pool can save time and frustration as you move ever closer to your first swim of the season.

Visit the blog on our sister site, Pool Central, for more information on pool maintenance, pool safety, pool toys, backyard recreation and patio and garden decor.