Originally Posted by genec

When I was working in Florida a couple years ago, I did a little ride each Saturday... in the FL heat and humidity. I lived in an travel trailer at the time and always put water in the fridge, and turned on the AC before I rode. Generally the temp was in the 85-95 degree range with an RH that allowed you to "wring" water right out of the air. The rides were short, 10-15 miles, but always gratifying... and indeed, as long as I kept moving... it was "doable."

The moment I stopped, at a stop sign for instance... the sweat would pour off of me. When I finally got back to my RV at the end of the ride... I'd quickly lock up the bike and then dash into the cool trailer and open a refrigerated water bottle and wash off my face with cool water. Within 10 minutes or so, I'd feel "comfortable" again. But the fact that I did this every weekend and days off meant that I could tolerate that Florida heat much better.

Unusual weather like that which hit Portland yesterday doesn't give you time to build up your "heat immunity," and just feels relentless...