Sort of a bump, cause I'd like to hear others' comments. But I had read the high is around 80. I'll be bringing t shirts, shorts, probably one pair of jeans (for evening just in case) and a sweatshirt. I've found in Florida that once you spend your first day in the full sun, even if you don't burn, the nights feel a lot colder to you.
Also, I see you're from Ontario, so you may feel warmer than, say, those who live in Florida (I always laugh when I'm visiting my parents in February - I wear shorts, the "natives" are wearing parkas)