The Black Sea — Year-Round Diving
Contrary to popular perception, the Black Sea has a diving season 12 months a year. Not every month is equally comfortable — in winter you need thick neoprene or a dry suit — but diving is possible and often fascinating in every season.
Monthly Summary
| Period | Surface temp | Visibility | Equipment |
|---|---|---|---|
| Jan–Mar | 7–10°C | 10–20 m (best) | 7mm / dry suit |
| Apr–May | 12–16°C | 8–15 m | 5–7mm wetsuit |
| Jun | 18–22°C | 6–12 m | 5mm wetsuit |
| Jul–Aug | 24–28°C | 4–10 m | 3mm surface / 5mm depth |
| Sep–Oct | 16–24°C | 8–15 m | 5mm wetsuit |
| Nov–Dec | 10–15°C | 10–18 m | 7mm / dry suit |
Best Season by Activity
| Activity | Recommended season |
|---|---|
| First Open Water course | July – August (warmest water) |
| Wreck diving and photography | May – June, September – October (best visibility) |
| Night diving (bioluminescence) | July – August |
| Maximum absolute visibility | January – March (very cold water) |
FAQ
When is the water warmest in the Black Sea?
Peak: August — 26–28°C at the surface in warm years. At 15 m depth it drops to 16–18°C regardless of season.
Can I dive in winter at Constanța?
Yes, with proper equipment. Winter offers extraordinary visibility (15–20 m vs 5–8 m in summer) and zero crowds. Contact ALPHAMARIN at +40.768.888.529 for winter dive bookings.