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Swimming Pool Water Temperatures

Swimming Pool Water Temperatures

An appropriate swimming pool temperature can result in an enjoyable swimming session. Chilly waters prevent swimmers from carrying out their hobby, however, by using water heating systems one can maintain the appropriate water temperature in the pool...
Gardenerdy Staff
Last Updated: Apr 9, 2018
A large number of people own swimming pools today. They love to beat the hot summer days by plunging into the cool, refreshing swimming pool water. However, seasons change and winter follows the lovely summer months. The swimming season is confined to the atmospheric temperatures. Various pool thermometers are available to measure the swimming pool water temperature. There are the hanging, floating and digital types of swimming pool thermometers which help gauge the water temperature. However, it is quite difficult to identify the perfect pool water temperature, as each person has his or her own preferences. Moreover, the ideal pool temperature will also vary depending on the geographical location, the season and age of the individuals swimming.

Ideal Swimming Pool Water Temperature

The American Red Cross suggests that 78° F is appropriate for swimming. But, this temperature is ideal for competitive swimming and is quite chilly for regular swimming. Water at 78° F is ideal for competitive swimming as the cold water promotes heavier breathing and faster heartbeat in order to keep warm. Even for the most adventurous swimmers, 65° F is unbearably cold.

On the other hand, for regular swimming an average swimming pool temperature of 80-84° F is most suited. In cold regions, hotel and resorts maintain the outdoor pool's temperature to around 84-86° F, for visitors to enjoy swimming leisurely. In case of lap swimming, the appropriate temperature in cold regions is 80-82° F (to avoid overheating). In warmer regions, the temperature of outdoor swimming pools is maintained at around 75° F for lap swimming. For regular swimmers, 80-84° F is appropriate.

The temperature of the swimming pool water is not fixed, and varies according to factors like wind, surrounding temperature, etc. For indoor swimming pools, the exact temperature will depend on the humidity inside the building. Cases where the indoor humidity is high, the temperature of the pool needs to be lower, in order to prevent overheating of the body. The temperature must be within a range of 75-85° F. As far as intense swimmers are concerned, they have to choose their own pool water temperatures on the basis of the type and intensity of training. Generally, intense swimmers maintain the water temperature at 73° F.

How to Maintain Swimming Pool Water Temperature?

Pool temperature plays an important role, because chilly water can shock the body. It can also slow down muscle movements and increase heart rate. The risks of such things happening is high during the winters, because the sun's rays are not enough to keep the pool water warm. Thus, we need to artificially heat the pool water so that people can enjoy swimming all throughout the year. Various pool heating devices are available in the market today, which can be used for swimming pool temperature control. Swimming pool heating systems such as electric, gas or solar powered-heating devices are available. The type and size of the heating equipment will depend on the pool type and size. Solar swimming pool covers or solar blankets can be placed over the pool water to keep the water warm.

To maintain the pool's temperature, a pool heater has to be purchased. The more BTUs (British Thermal Units) produced by a pool heater, the faster the pool water gets warmer. However, with every degree rise in temperature of the pool water, there is significant rise in the energy costs, which is about 10 to 30% higher costs. Solar covers are also available, which help maintain pool temperature by reducing the heat lost from the pool. It also helps maximize the efficiency of the water heater. One can also consider a solar unit to heat the pool water. A solar heater used along with a back-up heating system can also help lower the overall costs. The initial investment is high, however, within a few years time, you will be able to enjoy the money saved on electricity bills. However, make sure you purchase the right sized-solar unit for the pool.

Most of the time, even with a pool heater, it is impossible to maintain a temperature in the pool that is suitable for all swimmers. Some may find it too warm, while others may find it too cold. The pool water temperature cannot be raised beyond a certain temperature, because of the danger of bacteria and other micro-organism multiplication. Moreover, the higher the temperature, the less effective the chlorine-based disinfectants get. Thus, those who find the pool water cold can try wearing a full wetsuit, which is available in different thicknesses.

Increasing pool temperature has its effects on pool maintenance, which has to be kept in mind as well. Higher temperatures means higher rate of water evaporation. One will have to fill more water to ensure adequate water in the skimmers. High temperatures and high evaporation rate also lead to the quicker consumption of chlorine and other sanitizing agents from the pool water. Algae also love to grow in warmer temperatures, making it necessary to vacuum and clean the pool more often.

A temperature controlled-pool can triple the comfort in the pool. With the pool heaters and covers, one can relax and enjoy pleasant swimming beyond the conventional summer months. Have fun!