Our little group did 77 miles this Saturday over my favorite route over the mountain and back. I'm guessing the temperature was low to mid 90's with a heat index slightly upwards of that. It was mostly sunny and hazy with nil to light wind.
I made sure I drank a lot of "sports drink" and ate a goodly portion of granola bars, honey, peanut butter and crackers etc. to stay fueled and hydrated. Late in the ride, we stopped at a little fountain of sorts, and I wet my noggin and a bandanna and put the bandanna around the back of my neck.
I didn't have as much energy left at the end of the ride as I usually have. I didn't bonk, but usually I have a little more in reserve at the end of a ride than I had this time, which was disconcerting. I'm thinking more frequent noggin soaks and wet bandannas may have helped.
So, what things do you do to deal with the heat during a ride?