Sea temperature - Greece: month by month
Average sea temperature each month - a rough guide to when it's worth going. Current month highlighted.
| Month | Average | Warmest |
|---|---|---|
| January | 17.4°C | Kos 19.3°C |
| February | 16.6°C | Kos 18.1°C |
| March | 16.6°C | Kos 17.7°C |
| April | 17.4°C | Rhodes 18.3°C |
| May | 19.5°C | Rhodes 20.1°C |
| June | 23.8°C | Halkidiki 24.5°C |
| July | 26.3°C | Halkidiki 27.4°C |
| August | 26.9°C | Rhodes 28.1°C |
| September | 25.9°C | Rhodes 27.0°C |
| October | 23.5°C | Rhodes 24.8°C |
| November | 21.2°C | Rhodes 22.7°C |
| December | 18.8°C | Rhodes 20.6°C |
Frequently asked questions
In which month is the sea warmest?
Warmest: August, about 26.9°C on average.
When is the sea coldest?
Coldest: February, about 16.6°C on average.
What is the sea temperature in summer?
In summer (June-August) about 25.7°C on average.
In which months is the sea warmest?
The sea usually exceeds 24°C from July to September.
Sea temperature - Greece, January
Average (January): about 17.4°C. Warmest: Kos (19.3°C).
Sea temperature - Greece, February
Average (February): about 16.6°C. Warmest: Kos (18.1°C).
Sea temperature - Greece, March
Average (March): about 16.6°C. Warmest: Kos (17.7°C).
Sea temperature - Greece, April
Average (April): about 17.4°C. Warmest: Rhodes (18.3°C).
Sea temperature - Greece, May
Average (May): about 19.5°C. Warmest: Rhodes (20.1°C).
Sea temperature - Greece, June
Average (June): about 23.8°C. Warmest: Halkidiki (24.5°C).
Sea temperature - Greece, July
Average (July): about 26.3°C. Warmest: Halkidiki (27.4°C).
Sea temperature - Greece, August
Average (August): about 26.9°C. Warmest: Rhodes (28.1°C).
Sea temperature - Greece, September
Average (September): about 25.9°C. Warmest: Rhodes (27.0°C).
Sea temperature - Greece, October
Average (October): about 23.5°C. Warmest: Rhodes (24.8°C).
Sea temperature - Greece, November
Average (November): about 21.2°C. Warmest: Rhodes (22.7°C).
Sea temperature - Greece, December
Average (December): about 18.8°C. Warmest: Rhodes (20.6°C).