Well this is the problem with assuming the weather works like western NY.
I live in NC and here and probably much like Florida, it actually keeps getting hotter later in the day most of the time.
So having it later would not be a huge help unless you get to like 8pm or later.
I watch these Temps all the time because i have to watch when I can walk my dogs during the summer months and usually even at 9 or 10 it's still too hot sometimes.