Sea temperature in Chalkida in December
The sea around Chalkida averages 18°C in December, usually between 16°C and 20°C. That is cold for most swimmers; a wetsuit helps.
Average18°CCold
Usual range16°C–20°C80% of readings
vs November+1.5°warmer
vs January−5.9°cooler next month
Through the year
Monthly averages 2023–2025.
December in recent years
| 2023 | 18°C |
|---|---|
| 2024 | 17°C |
| 2025 | 18°C |
Nearby in December
Beaches in Chalkida
30 of 31 beaches have an Excellent EU water-quality grade. See which ones are calm today.