Water temperature of the Mediterranean Sea in september Where to swim in the Mediterranean Sea in september 2025?

Several countries border the seaside of the Mediterranean Sea, including: Albania, Algeria, Balearic Islands, Camargue, Cyprus, Corfu Island, Corsica, French Riviera and Provence, Crete and Djerba. We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of september.

The seasonal average for the water temperature in the month of september is between 69°F and 83°F. The lowest sea temperature measured this month is 66°F and the highest is 85°F.

The sea temperature map of the Mediterranean Sea in september

The map below presents a monthly average of the water temperature of the Mediterranean Sea for the month of september for several coastal cities. You can zoom and move around on the map. By clicking on the markers, you can see sea temperature details by city in september.