82 degrees is a magic number. The tarpon start rolling in now and the sharks that feed on them aren't small. Odds are still small though.
Just be glad we aren't in Volusia (I lived there 2 years and can attest that the shark numbers there are simply unreal). We have a fairly high kill to attack ratio though.. yikeees.

http://www.flmnh.ufl.edu/fish/sharks...tack/MapFL.htm