At what minimum temperature should a pool heater be set for comfortable swimming?

The recommended minimum temperature for a swimming pool to ensure a comfortable swimming experience generally falls within the range of 78°F to 80°F. This temperature range is widely regarded as ideal for most swimmers, providing a balance between warmth and refreshment, especially for recreational swimming. Bodies of water at this temperature encourage longer swim durations without causing thermal discomfort or chill.

While lower temperatures, like those stated in the first choice (72°F to 75°F), may be acceptable for some activities or during warmer weather, they often do not provide the same level of comfort. Higher temperature settings, such as those mentioned in the last choice (80°F to 82°F), may be more suitable for spa-like conditions but can be too warm for extended swimming sessions. Keeping the heater set within the 78°F to 80°F range caters well to the general preferences of most swimmers.