Sea temperature in Kefalonia in October
The sea around Kefalonia averages 23°C in October, usually between 22°C and 25°C. That is pleasant for swimming, refreshing at first.
Average23°CRefreshing
Usual range22°C–25°C80% of readings
vs September−2.6°cooler
vs November−1.7°cooler next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: June–October.
October in recent years
| 2023 | 25°C |
|---|---|
| 2024 | 23°C |
| 2025 | 22°C |
Nearby in October
Beaches in Kefalonia
34 of 34 beaches have an Excellent EU water-quality grade. See which ones are calm today.