Sea temperature in Ermoupoli in October
The sea around Ermoupoli averages 23°C in October, usually between 21°C and 25°C. That is pleasant for swimming, refreshing at first.
Average23°CRefreshing
Usual range21°C–25°C80% of readings
vs September−2.1°cooler
vs November−2.2°cooler next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: June–October.
October in recent years
| 2023 | 23°C |
|---|---|
| 2024 | 24°C |
| 2025 | 22°C |
Nearby in October
Beaches in Ermoupoli
45 of 45 beaches have an Excellent EU water-quality grade. See which ones are calm today.