You and I both, I was staring at 80% of the people there and was like "you guys really all okay in this"?
Needles & Grooves
Bohnjaggs
For me with Coachella, it can be hot (around 100 degrees) but at least a lot of the daytime acts I want to see are inside of tent stages and that will usually keep you out of the sun until later in the day.