In December sea water temperature all along the Strait of Gibraltar coast is not yet warm enough for swimming and does not exceed 20°C. The warmest average water temperature Strait of Gibraltar in December is 18.7°C (in Bolonia), and the coldest sea surface temperature is 16.1°C (in Ceuta). To find out the sea temperature today and in the coming days, go to Current sea temperature of the Strait of Gibraltar
This data on the average monthly surface water temperature on the Strait of Gibraltar 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.