In December warmest sea in Finland is usually observed in the following locations: Koli National Park, Imatra, Juvaskyla.
Table below shows the average sea water temperature for marine resorts of Finland in December for the last three years.
| Place name | December 2023 | December 2022 | December 2021 |
|---|---|---|---|
| Koli National Park | 37.6°F | 37.2°F | 37.1°F |
| Imatra | 37.2°F | 37.2°F | 37.2°F |
| Juvaskyla | 37.0°F | 36.8°F | 36.9°F |
| Savolinna | 36.6°F | 36.5°F | 36.3°F |
| Espoo | 36.2°F | 37.5°F | 36.3°F |
| Helsinki | 36.1°F | 37.2°F | 36.2°F |
| Vantaa | 36.1°F | 37.1°F | 36.1°F |
| Pori | 35.8°F | 38.5°F | 36.1°F |
| Kotka | 35.5°F | 35.9°F | 35.0°F |
| Turku | 35.2°F | 36.5°F | 36.0°F |
| Lahti | 35.2°F | 35.5°F | 35.3°F |
| Porvoo | 34.0°F | 35.7°F | 34.8°F |
| Lappeenranta | 34.0°F | 34.0°F | 34.0°F |
| Saariselka | 33.7°F | 33.8°F | 33.7°F |
| Vaasa | 31.8°F | 33.1°F | 32.6°F |
| Seinajoki | 31.1°F | 32.5°F | 31.8°F |
| Oulu | 30.5°F | 30.7°F | 30.6°F |
| Kemi | 29.7°F | 31.5°F | 31.4°F |
Charts below show average sea water temperature for Finland resorts with the warmest sea in December.
You can also check other months of the year to see sea temperature of Finland resorts at that time.
Places in Finland:
Name
°F
