I've been to WDW in every month except February so far. I figured we would be able to swim comfortably in late Oct. Well...swimming wasn't the issue. Getting out of the pool was the issue!! Water was terrific, air..not so much. Same thing in Nov and Dec. Getting in isn't an issue. But when you get out, the air is sometimes really, really chilly. Best to wrap up quickly!! But, you can hit some pretty warm weather...then, it's a win-win situation.