Sea temperature in Thessaloniki in October
The sea around Thessaloniki averages 22°C in October, usually between 20°C and 24°C. That is pleasant for swimming, refreshing at first.
Average22°CRefreshing
Usual range20°C–24°C80% of readings
vs September−3.4°cooler
vs November−3.1°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 | 23°C |
| 2025 | 22°C |
Nearby in October
Beaches in Thessaloniki
10 of 10 beaches have an Excellent EU water-quality grade. See which ones are calm today.