Also, no amount of water intake will increase evaporative cooling when the humidity is high. That is the real difference with humid vs arid places. As long as I was drinking water in the arid places I could handle it pretty well. You have to have something facilitating that evaporation whether it is air flow or a significant gradient (arid).
Yes! The humidity sucks. I cant get cool in humid weather and I sweat like a pig so you keep drinking and even more sweat keeps piling up. Have to change my outfits occasionally at work. And keep the goldbond powder in the truck! Your undercarriage will thank you!