Sea temperature in Lesbos in December
The sea around Lesbos averages 18°C in December, usually between 16°C and 19°C. That is cold for most swimmers; a wetsuit helps.
Average18°CCool
Usual range16°C–19°C80% of readings
vs November−1.4°cooler
vs January−1.3°cooler next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: June–September.
December in recent years
| 2023 | 19°C |
|---|---|
| 2024 | 17°C |
| 2025 | 18°C |
Nearby in December
Beaches in Lesbos
45 of 46 beaches have an Excellent EU water-quality grade. See which ones are calm today.