I don't mind it up to about 26 degrees, as long as there is a breeze but in London it has been quite overwhelming, probably because of the high density of housing, traffic and the air pollution too. I try to keep the house as cool as possible but I do find the heat makes it hard to sleep and drains my energy in the day. It's different on holiday (although I don't like to be in much over 26 degrees even then) as hotels are air conditioned. A couple of years ago a strange, rather scary looking man got on a bus I was on and sat next to me. I was doing my best to be polite without engaging in conversation when he suddenly said if he told me what month of the year I was born and the date, would I stop being wary of him. On a 1st guess he got the month right and said the a window of three dates, next to each other and said he thought my birthday was the middle or first one. He was correct. He then said, " You're a child of the frozen north and you should get your heat from fires and furs, not the sun. The sun isn't good for you". It was late October so he couldn't have known how I felt about the sun. I had to get off at the next stop to go to work but I have often wished I could have stayed on the bus longer to hear what else he might say. I often think about what he said when feeling too hot in the summer.