Is 72 Degree Pool Water Cold? [Answered!]

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Hot summer days are here and everyone is looking for ways to stay cool. One option is to take a swim at a beautiful pool with a variety of water slides, beaches and other attractions.

But what is the temperature of the pool water? Is it warm, cold, or somewhere in between? The answer to this question can vary from pool to pool, so let’s examine the various factors that contribute to this phenomenon.

Air Temperature

The temperature of the air surrounding the pool is one contributing factor to the temperature of the water. If the temperature of the air is warm, then the water will be warm as well. However, if the air is cold, then the pool water will be significantly below the air temperature.

This is why when you walk into a cold house after a day outside, the first thing you notice is how chilly the air feels. When the temperature of the air is below freezing, it can be quite dangerous for your health. When the air is very cold, you can suffer from frostbite in a matter of minutes if you are not careful. This is why when the weather is cold, it is important to stay warm as well as to cool off. Wearing a hat, gloves and coat, in addition to keeping your body in movement, can help you stay at a tolerable temperature.


Moisture is one of the main causes of heat loss in the outdoors, and it is especially significant when the temperature is high. When the pool water evaporates at a rapid pace, it can cause the air surrounding it to become warm.

Even if the air is not directly touching the pool, it can still pick up moisture and become heated due to the increased evaporation. This is why when the temperature is high and the air is still, the pool will continue to lose heat and become relatively cooler. If the air is very humid, then the evaporation from the pool will be even more significant, and it can cause discomfort even when the temperature is well below freezing. Dehumidifiers can be a great investment for any household that is exposed to high temperatures and high humidity.

Energy Usage

The energy usage of your home area is another contributing factor to the temperature of the pool. If you are using a lot of electrical appliances or devices, such as air conditioning, heat pumps, and fans, then your pool will lose a significant amount of heat, and it may even become icy. You will need to closely monitor your energy usage, and if possible, switch off or reduce the use of some of these devices when the pool is not in use.

Electrical appliances and devices contribute to the temperature of the pool for a number of reasons. First of all, they consume a lot of energy, which in turn can cause you to run up a huge electricity bill. Secondly, many of these items generate a significant amount of heat, which can cause discomfort even when the pool is not directly exposed to the elements. Lastly, the constant usage of some electrical appliances and devices can damage the internal components of your pool, and in extreme cases, could even cause it to malfunction.

Solar Heating

In some parts of the world, notably the southern hemisphere, the sun is directly overhead during the day. In these areas, the sun is a significant contributor to the heat of the day. This is why if you live in a place where the sun is visible from your windows, then the pool will absorb a great deal of heat through absorption and reflection of the sun’s rays. Most pools will heat up quickly in the morning, and continue to do so, even when used in the afternoon.

In these cases, it is recommended that you open the pool for a couple of hours in the morning, or in the late afternoon, so that the pool water can reach its warmest temperature close to the point of use. Pools with solar heating will need a bit of an adjustment in terms of the temperature they are capable of producing, and whether or not they are equipped with a spa. The great thing about this type of pool is that it does not require any additional energy to operate, and it will not heat up rapidly once the sun sets, as a conventional pool does.

Freezing And Ice

When the temperature of the air and water is at or below freezing, then the water will be in a state of freezing. This is why when you walk into a pool area after a particularly cold day, the first thing you will see is ice everywhere. If the temperature of the air and water are at or below freezing, then depending on the length of time they have been exposed to the elements, the ice will be in a number of different forms. Shorter ice formations on the pool surface will melt rapidly, giving you the chance to splash around as you swim. Larger ice formations will either melt, or break up into smaller pieces, making it easier for you to swim and play in the water. If the pool is located in a climate where the temperatures drop far below freezing, then it is important to bear in mind that the water will be frozen, even when the air temperature is slightly above freezing.


So, as you can see, there are many factors that affect the temperature of the pool. There are some general rules of thumb that can help you determine the temperature of your pool more accurately. One of the best things you can do for your health in the coming months is to properly take care of your pool and ensure it is always clean and free of debris. This will help reduce the amount of heat loss through evaporation, keeping the pool at the desired temperature. It also helps keep algae at bay, so you do not have to worry about your pool turning green, which can affect the aesthetic appeal of the water.

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