too warm for me but my wife likes it. I like to jump in have the water have a bit of bite. The good news is I don't think I will need to install a solar pool heater for this pool. Our old one was on the East/North side of the house and had trees within about 20'. So it got 3-4 hrs of full sun a day. This pool is on the south/west side of the house so gets full sun nearly all day.