Florida resident here. Usually February is beautiful low 80's mid 70's during the day 60's some 50's at night. Early morning and evenings typically require a light weight jacket. My children often leave the house for school in shorts and a tee with a hoody over the top and then return home with their hoody stuffed in their backpacks. However, if February, or winter anytime really, we can get cold snaps where it is can get in the 40's /30's some days. So be prepared because it can happen. We have days where we are bundled up in layers. Even if the forecast predicts that the days of your vacation will be nice I always suggest bringing jeans, long sleeved shirts and a jacket. Hopefully you won't need them but it can be an expensive pain in the rear if you don't bring them and end up needing them.