Sea temperature and swimming season in Bulgaria
When the sea is warm enough to swim in 4 coastal cities in Bulgaria.
| City | Warmest | Coldest | Swimming season |
|---|---|---|---|
| Varna | 25.8°C Aug | 6.9°C Feb | Jun – Oct (5 months) |
| Nesebar | 26.0°C Aug | 7.5°C Feb | Jun – Oct (5 months) |
| Kavarna | 25.7°C Aug | 7.1°C Feb | Jun – Oct (5 months) |
| Sozopol | 26.0°C Aug | 7.6°C Feb | Jun – Oct (5 months) |
Knowing the temperature is only half of it. What to wear, and why cold shock is the real risk →
Season uses 19°C. Why that number, and where the data comes from