Sea temperature in Spetses in October
The sea around Spetses averages 24°C in October, usually between 23°C and 25°C. That is warm enough for most people to swim comfortably.
Average24°CWarm
Usual range23°C–25°C80% of readings
vs September−1.7°cooler
vs November−1.8°cooler next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: June–November.
October in recent years
| 2023 | 24°C |
|---|---|
| 2024 | 25°C |
| 2025 | 24°C |
Nearby in October
Beaches in Spetses
7 of 7 beaches have an Excellent EU water-quality grade. See which ones are calm today.