Menu Close

What is the Best Swimming Pool Temperature?

How to determine the best Temperature for swimming

Temperature is obviously a key component to enjoying your swimming pool. However, you will find that when it comes to the subject of the best swimming pool temperature, there are no easy answers.

To put it another way, there is no such thing as a universal answer to this question. There is a long list of factors that will influence the ideal temperature for your swimming pool. There is a certain rule of thumb element that can be kept in mind, but really, there is no single answer that will work for every pool of every style, size, and location. These are just a few of the considerations that will help you figure out this essential issue.

To be sure, we are talking about one of the most hotly-debated topics among pool owners. It would seem as though everyone has an opinion on this subject. Everyone is convinced their ideal temperature is the one everyone should keep in mind. Of course, that is absolutely absurd. Personal preference alone dictates that there isn’t some magical number that will be perfect for everyone. We will take you through the different factors that will show you where your own ideal will likely need to be established.

Why Pool Temperatures Must Be Kept In Mind

At the end of the day, you can make the argument that basically everyone is right. At least, they are in the context of their needs, general health, and personal preferences. Nonetheless, we won’t pretend the subject isn’t an important one. Maintaining an ideal pool temperature, while lacking in that ideal, universal answer, is still essentially the foundation of being able to enjoy your pool in the first place.

Have you ever jumped into your swimming pool, and immediately felt as though you jumped into a literal ice cube? Have you ever taken a dip on a hot day, and felt as though you just stepped into a warm bath? Chances are, your temperature is not where it should be. Different people have different needs, but there is still a general point that establishes a difference between an enjoyable swim, and then a swim that most people wouldn’t find to be very pleasant at all.

Generally speaking, the sweet spot for most people seems to fall somewhere between 78F (or 26C) and 82F (28C). However, the climate can influence your temperature. This is particularly true where it concerns the presence of contaminants like algae. Furthermore, the age and health of those using your pool can also keenly influence the best possible temperature for your specific situation.

Another factor that can influence your temperature? What you plan to use the pool for. The ideal temperature for some aquatic activities can prove to be very different from the ideal temperature for someone who just wants to soak and float around the water peacefully. This is what we mean when we tell you that there is no such thing as a universal answer.

Let’s take a closer look at specific temperatures, in terms of certain individuals and activities.

Breaking Down Ideal Temperatures By Age, Activity, And More

In order to give you the most accurate idea possible of what you should aspire to for the temperature in your pool, we have to first figure out what you will generally be using it for in the first place. This can also take into account things like climate, as well as the age/health of those who are going to be using the pool the most frequently. This may sound like a lot to take into consideration. Nonetheless, if you are serious about finding the very best possible temperature for one situation or another, you will want to keep all of this in mind.

Not to worry. Once we start to break things down a bit, none of this will actually prove to be very complicated. The range doesn’t reach so far as to make it a pain to make adjustments as needed.

Let’s take a look:

  • For kids: Is your swimming pool going to be a popular meeting place for your kids and their friends? Will you be teaching any of your children to swim this summer? Particularly in terms of younger children, especially those trying the water for the very first time, the temperate should aspire to hit at least 84F. This is a good temperature for keeping young muscles loose, while simultaneously making it easy for them to breathe as they get used to the new environment. Older children can very easily handle temperatures that fall a degree or two below that 84F threshold.
  • For seniors: Hot tubs are often recommended for seniors. This is due to the fact that as we get older, our bodies tend to be less tolerant of cooler/cold temperatures. In fact, for some senior citizens, the 84F we mentioned for children can prove to be downright frosty. If you have seniors in your household, and they plan to use your pool on a regular basis, the ideal temperature is going to be somewhere between 86F and 88F. The high end of that range is also pretty good for anyone who is suffering from arthritis, regardless of their age. For those with considerable mobility issues, it might be prudent to go all the way up to 90F.
  • For adults: Whether you plan to swim/relax casually, or if you would prefer to enjoy the many health benefits of water aerobics (lower blood pressure, stronger cardiovascular health, and so on), there is an ideal temperature most adults can keep in mind, as well. For adults beyond the age of children, but below the age of a senior, we would suggest somewhere in the neighborhood of 78F to 82F.

At this point, you’re probably wondering where you can go temperature-wise to keep most of the people who are using your pool happy. This would be the 78F to 82F range that we discussed before. However, you may still be wondering what you can do for every possibility.

The Dangers Of Readjusting Your Temperature Frequently

We’ve covered a range of temperatures that start at around 78F and can go all the way up to 90F, depending upon who is using the pool. The suggestions we mentioned above are ideal for households with a certain emphasis. If your spouse and kids will be using the pool for the most part, for example, which would make your ideal temperature somewhere between 78F and 84F. What can be done to ensure every single person can enjoy the pool at an ideal temperature?

The truth of the matter is that nothing can really be done. The sweet spot of 78F to 82F is going to be just fine for the vast majority of your swimmers. Unless someone outside of that range is going to be using your pool on a regular basis, it doesn’t really make good financial sense to play around with such a wide assortment of temperatures. At best, you’re going to run up your electricity bill to a ridiculous degree. At worst, you can cause issues with how your pool maintains itself, including ideal balance levels.

If you do have a senior relative, friend, or family member who will use the pool on a regular basis, but their needs are dramatically different from the comfort levels of others in your household, consider adding a hot tub to your current setup. Obviously, this is pretty pricey, but it will cause fewer headaches and financial issues with your primary swimming pool over the long term.

A Few More Reasons Why Your Pool’s Temperature Matters

Let’s wrap things up with a closer look at just why the health of your swimming pool and the temperature of your swimming pool is so keenly tied together. Comfort and enjoyment are definitely important considerations with temperature, but there is actually a bit more to it than that:

  • Algae/bacteria: These are the undesirables that can create all kinds of problems with your swimming pool. Algae, in particular, can create a situation that can be highly unpleasant for everyone involved. The chemicals you add to your pool are designed, among other things, to keep stuff like that from becoming an issue. Maintaining a consistent temperature will make it a lot less likely that these things will trouble you.
  • The overall balance: If your temperature is creating a situation in which bacteria and algae can thrive, pool shocks and other products will have to work twice as hard to do their job. This is something else that can knock the balance of the pool out of whack.
  • Comfort: Finally, as we have touched on already, an ideal, consistent temperature guarantees virtually everyone will be comfortable in the water. Adjustments are fine occasionally, but it’s not a habit you want to regularly embrace.


Your thermostat will not only read your temperature for you but allow you to make changes to your settings as needed. However, the thermostat can be imperfect. If you really want to maintain accuracy and supreme comfort, you may need to invest in an analog, infrared, or digital pool thermometer.

Posted in pool maintenance

Related Posts