Hey there, I live in Orlando. The above poster is pretty correct. It's usually very nice during the day, somewhere in the 60's-70's, and 50's-60's at night. It rarely rains in December so the sun is always out to warm it up and there's not a lot of humidity. This year it's already starting to get a little chilly right now, we've dropped down to the 60's at night and high 70's, low 80's during the day. So that could mean December is a little on the chilly side this year. HTH!