In December sea water temperature all along the Caribbean Sea coast warms above 20°C and it is enough for a comfortable bathing. The warmest average water temperature Caribbean Sea in December is 30°C (in Tia Juana, Venezuela), and the coldest sea surface temperature is 25.1°C (in Nueva Gerona, Cuba). To find out the sea temperature today and in the coming days, go to Current sea temperature of the Caribbean Sea
This data on the average monthly surface water temperature on the Caribbean Sea coast in December. To see the details, select the country and then the city of your interest. Besides water temperature, you can also get information about the weather for today, tomorrow and the upcoming days, surf forecast, as well as the data on sunrise/sunset and moonrise/moonset at a given point on any given day.
Map shows the average water temperature in December for cities along the Caribbean Sea