One time in Bahrain in mid summer, we had an emergency at the aluminum smelter and us expats had to go out raking the furnaces. We would spend a few seconds in front of the furnace and then go out into the sun (The saame as Jeri's Kuwait sun, and yes it was 120 degrees in the shade) to cool down.

Plain water was the only thing that worked. And Jeri is right, drink all that you feel you need and then drink some more. If your pee is yellow then you are not drinking enough.