The saying goes "Red sky at night, sailor’s delight. Red sky in morning, sailor’s warning". And as it turns out, it's mostly right.
Having said that, because Florida is a big peninsula, the weather can be unpredictable, especially in the warmer months. Tropical storms boil up from either direction in little time and dissipate just as fast. But for the most part, the old sayings are still relevant.
This photo points out over the Gulf of Mexico, so if I launched a sailboat directly west, I'd end up near Corpus Christi. But even though the skies say it's okay, it's not something I'm likely to do. I'm no sailor, and I prefer to stay away from the open seas in a small boat. I'm a cruise ship kind of person and a rough day of sailing means having to wait in line at the seafood buffet.