Summer in Southern California gets really hot only a couple months a year but when it's hot, it's hot. This past month there were some hot days but really looking forward to cooling down our patio when the hot dry heat hits in August. I have had the fan for about a month now. It does not work as well when it's humid and muggy. It does help the temperature some but get my furniture a little wet. When it is dry out though, it really works like a charm. Love it.