Sea temperature and swimming season in Italy
When the sea is warm enough to swim in 16 coastal cities in Italy.
| City | Warmest | Coldest | Swimming season |
|---|---|---|---|
| Naples | 27.2°C Aug | 14.7°C Mar | Jun – Nov (6 months) |
| Palermo | 28.1°C Aug | 15.2°C Feb | May – Nov (7 months) |
| Genoa | 26.5°C Aug | 14.2°C Feb | Jun – Nov (6 months) |
| Bari | 26.8°C Aug | 14.2°C Mar | Jun – Oct (5 months) |
| Catania | 27.3°C Aug | 15.0°C Mar | Jun – Nov (6 months) |
| Messina | 27.9°C Aug | 15.0°C Mar | Jun – Nov (6 months) |
| Trieste | 26.4°C Aug | 10.2°C Feb | Jun – Oct (5 months) |
| Livorno | 26.4°C Aug | 14.1°C Mar | Jun – Oct (5 months) |
| Cagliari | 26.8°C Aug | 14.7°C Feb | Jun – Nov (6 months) |
| Salerno | 27.0°C Aug | 14.7°C Mar | Jun – Nov (6 months) |
| Siracusa | 27.6°C Aug | 15.2°C Mar | Jun – Nov (6 months) |
| Crotone | 27.3°C Aug | 14.6°C Mar | Jun – Nov (6 months) |
| Venice | 26.9°C Aug | 9.3°C Feb | Jun – Oct (5 months) |
| Nettuno | 26.8°C Aug | 14.6°C Mar | Jun – Nov (6 months) |
| Capri | 27.4°C Aug | 14.9°C Mar | Jun – Nov (6 months) |
| Campora San Giovanni | 28.2°C Aug | 15.0°C Mar | May – Nov (7 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