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

Several countries border the seaside of the Black Sea, including: Bulgaria, Georgia, Romania, Russia, Turkey and Ukraine. 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 71°F and 77°F. The lowest sea temperature measured this month is 68°F and the highest is 80°F.

The sea temperature map of the Black Sea in september

The map below presents a monthly average of the water temperature of the Black 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.

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Where can you swim in the Black Sea in september?

Below, see the average temperatures measured in september in the different countries on the shores of the Black Sea.

Bulgaria

Sea temperature in september at the shore of the Black Sea:

73°F to 74°F

pleasant swimming

Georgia

Sea temperature in september at the shore of the Black Sea:

77°F

pleasant swimming

Romania

Sea temperature in september at the shore of the Black Sea:

74°F

pleasant swimming

Russia

Sea temperature in september at the shore of the Black Sea:

74°F to 76°F

pleasant swimming

Turkey

Sea temperature in september at the shore of the Black Sea:

73°F to 77°F

pleasant swimming

Ukraine

Sea temperature in september at the shore of the Black Sea:

71°F to 73°F

pleasant swimming

Water temperature of the Black Sea: choose another month

See monthly seasonal averages of the water temperature of the Black Sea by clicking on the links below:

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