LT42 48C for me in Tunisia when I was a kid. Didn’t really notice it to be honest, but utterly refused to have any sunscreen put on me / keep hydrated, and ended up in bed/running to the toilet with the shits for 3 days with sunstroke.
That was a dry heat at least. Temp hit 43C in Melbourne on Christmas Day in 2016, and was humid as well. Utterly disgusting weather. Only had to THINK about moving around to be covered in a solid sheen of sweat…