I can remember playing tennis when it was 114 F (Del Rio, TX) when I was a teenager. We noticed the pavement was really hot when we stepped out on it and after that I guess our feet got used to it and we just sweated it out till we were done and went to the pool.
Not as bad as the high temps (near, but still not above 100 F) and high humidity at Ft. Myer, VA I went through in the mid to late 70's. And we wore winter blues/greens because they held a press better than the summer weight uniforms. Just nasty.
Now I'm 63. Overweight (not as bad as I was a couple years ago) and out of shape (again, not as bad as I was a couple years ago) and the heat and humidity around here gets the best of me pretty quickly on those nasty days - and I'm wearing shorts, a t-shirt and mesh/vented shoes and staying in the shade as much as I can.
Took the 10 year olds (nephews kids) to state park lake to play in the water/sand on Tuesday. I sat on a chair under a big oak tree in the shade. 1030 AM nice cool breeze blowing through the area. At 1145 (I know, I looked at my watch as the change got my attention) the cool breeze turned to a warm breeze. I don't know the temperature change in degrees/numbers, I just know the difference was obvious and got my attention. I sat in that chair through lunch and another 2 hours after that and sweated it wet by the time they were wore out enough to say it was time to go home.
Dry heat and dry cold is better. Or at least my decades old memories say it is.