Where is the sea warmest in the Black Sea?
The warmest water in the Black Sea month by month, across 47 coastal cities — and how many of them are comfortable enough to swim in.
| Month | Warmest city | Sea | Comfortable |
|---|---|---|---|
| January | Rize | 11.8°C | nowhere |
| February | Kobuleti | 10.6°C | nowhere |
| March | Batumi | 10.6°C | nowhere |
| April | Tekirdağ | 13.1°C | nowhere |
| May | Azov | 17.9°C | nowhere |
| June | Azov | 23.5°C | 47 of 47 |
| July | Ochamchire | 25.9°C | 47 of 47 |
| August | Poti | 27.1°C | 47 of 47 |
| September | Batumi | 25.8°C | 47 of 47 |
| October | Rize | 21.7°C | 31 of 47 |
| November | Rize | 17.9°C | nowhere |
| December | Rize | 14.6°C | nowhere |
"Comfortable" means at least 19.0°C, which is a judgement and not a fact — a Norwegian and a Spaniard genuinely disagree. Every city page shows the season at four thresholds instead of insisting on one. Method and sources