Florida is too hot in the summer. You would have to counter that by staying in a swimming pool or buying a boat. I think the Carolinas are a nice compromise. Not far from the beach, mountains at your backside, and lots of green. Still have a beautiful 4 seasons. And if you want to visit Florida, it isn't very far!
You have a very good point, but I don't think it gets as hot there as it does here. Last summer we had several
days in the 105 to 110 range with lots of humidity. Feels like riding in a blast furnace. I usually quit riding when it hits
100 degrees. I like hot weather but it gets to hot for me even. Good luck in moving south, you will like it.