You kind of get used to it, but it always sucks. I don't go outside if I don't have to during the middle of the day, but we spent a good four hours out in the desert shooting on Friday. Just bring water and you'll be fine.

I can only imagine the heat in those places...

Ireland doesn't get that hot at all (doesn't get that cold either really) but when I was in Pittsburgh last August I was dying... Literally dripping sweat sometimes...

I don't handle the heat well anyway though. I'm always warm, even when people are complaining about being cold.

I'm usually wearing a compression shirt or wife beater underneath my shirt so it helps cool me off.

Most I'm in the sun is like hour or two everyday, so yeah lol

since when does wearing more clothes cool you off more

I wondered this, but have seen it regularly. I stay in shorts and a tank top as much as possible.

When I was younger (before I moved here permanently), I lived with my brother for a summer and worked as a laborer for the construction company he works at. All of the other laborers were hispanic that wore big hats with neck shrouds, long sleeve shirts and a tshirt underneath, and jeans. I thought they were crazy, but I never actually tried layering up in the 115-120 degree weather.