Swimming Pool The solar pool heating will activate itself when the outside temperature is 4 degrees superior to the pool temperature. The pool cover is to be put in place at sunset from October to the end of May. Under normal circumstances the water temperature will raise above 25 degrees from early April, progressively reaching over 30 degrees in the summer. Temperatures should gradually decrease offering 25 degrees early November. During the winter time with the cover on the temperature will be approximately 20 degrees.
