Florida maybe a great place to live for a lot of what I like to do but in the summer it is really just BRUTAL to run. Or do anything outside other than SCUBA diving. I’ve done midnight races that were in the 80s. There is not a ‘cool’ time of day to run but there are times that are cooler. Basically from 4 – 8 am, you can get mid to upper 70s on most days. Past 7:30 am and that is when the temps really start to skyrocket. If I could get a whole run in before 8 that would be great but since I can’t consistently wake up daily at 4am for longer weekday runs, I may get part of the run in before 8 but not all of it.