The perfect temperature for your swimming pool should be between 78 and 82 F degrees. Any warmer, you will feel like you are having a bath or you will come out of the swimming pool shivering if the water is any cooler. This range of temperature is comfortable for the elderly and children because they usually can’t handle cold or very warm water. If the sun regularly shines brightly in your area, you may invest in a retractable enclosure with a reflective roof to block sunlight more effectively. During colder days, a water heater with a temperature sensor can automatically keep your pool warm, while keeping energy utilization manageable.