Sea temperature and swimming season in Saint Helena
When the sea is warm enough to swim in 2 coastal cities in Saint Helena.
| City | Warmest | Coldest | Swimming season |
|---|---|---|---|
| Georgetown | 28.3°C Apr | 24.6°C Oct | all year |
| Edinburgh of the Seven Seas | 19.2°C Feb | 13.7°C Aug | Feb – Feb (1 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