What is the Florida keys average water temperature in winter?

The average water temperature in the Florida Keys during the winter months (December to February) is around 75-78°F (24-26°C). The water temperature in the Keys is influenced by the warm waters of the Gulf Stream, which keeps the climate mild and tropical throughout the year. The average winter air temperature in the Keys is around 70-72°F (21-22°C), making it an ideal destination for those seeking a warm and sunny escape from the colder climates of the northern United States and Canada.