Sea temperature in Ikaria in December
The sea around Ikaria averages 19°C in December, usually between 17°C and 21°C. That is cold for most swimmers; a wetsuit helps.
Average19°CCool
Usual range17°C–21°C80% of readings
vs November−1.8°cooler
vs January−0.6°cooler next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: July–October.
December in recent years
| 2023 | 20°C |
|---|---|
| 2024 | 17°C |
| 2025 | 20°C |
Nearby in December
Beaches in Ikaria
14 of 14 beaches have an Excellent EU water-quality grade. See which ones are calm today.