Where is the sea warmest in the Black Sea in September?
In September the warmest sea in the Black Sea is at Batumi, Georgia, at 25.8°C. Every one of the 47 cities measured here is comfortable this month.
| # | City | Country | Sea | Swimming |
|---|---|---|---|---|
| 1 | Batumi | Georgia | 25.8°C | Very comfortable |
| 2 | Rize | Turkey | 25.7°C | Very comfortable |
| 3 | Kobuleti | Georgia | 25.7°C | Very comfortable |
| 4 | Poti | Georgia | 25.7°C | Very comfortable |
| 5 | Sokhumi | Georgia | 25.7°C | Very comfortable |
| 6 | Ochamchire | Georgia | 25.6°C | Very comfortable |
| 7 | Gudauta | Georgia | 25.6°C | Very comfortable |
| 8 | Gagra | Georgia | 25.6°C | Very comfortable |
| 9 | Sochi | Russia | 25.4°C | Very comfortable |
| 10 | Trabzon | Turkey | 25.3°C | Very comfortable |
| 11 | Tuapse | Russia | 25.3°C | Very comfortable |
| 12 | Gelendzhik | Russia | 24.7°C | Very comfortable |
| 13 | Giresun | Turkey | 24.7°C | Very comfortable |
| 14 | Ordu | Turkey | 24.6°C | Very comfortable |
| 15 | Samsun | Turkey | 24.4°C | Very comfortable |
| 16 | Zonguldak | Turkey | 24.3°C | Very comfortable |
| 17 | Anapa | Russia | 24.3°C | Very comfortable |
| 18 | Sozopol | Bulgaria | 24.0°C | Very comfortable |
| 19 | Nesebar | Bulgaria | 24.0°C | Very comfortable |
| 20 | Tekirdağ | Turkey | 24.0°C | Very comfortable |
| 21 | Varna | Bulgaria | 23.9°C | Very comfortable |
| 22 | Sinop | Turkey | 23.8°C | Very comfortable |
| 23 | Kavarna | Bulgaria | 23.7°C | Very comfortable |
| 24 | Mangalia | Romania | 23.6°C | Very comfortable |
| 25 | Sevastopol | Ukraine | 23.6°C | Very comfortable |
Ranked on the NOAA OISST monthly climatology — a long-run average for September, not a forecast. A given September will run warmer or cooler than this, and the sea is warmest late in the afternoon and late in the season.