In May warmest sea in Finland is usually observed in the following locations: Lahti, Lappeenranta, Pori.
Table below shows the average sea water temperature for marine resorts of Finland in May for the last three years.
| Place name | May 2023 | May 2022 | May 2021 |
|---|---|---|---|
| Lahti | 48.6°F | 45.5°F | 47.5°F |
| Lappeenranta | 47.5°F | 44.1°F | 47.3°F |
| Pori | 46.5°F | 47.1°F | 45.4°F |
| Porvoo | 46.4°F | 44.0°F | 47.7°F |
| Turku | 44.8°F | 45.1°F | 45.6°F |
| Helsinki | 44.6°F | 43.8°F | 44.3°F |
| Kotka | 44.3°F | 43.0°F | 45.5°F |
| Vantaa | 44.2°F | 43.4°F | 44.2°F |
| Vaasa | 44.0°F | 46.3°F | 42.9°F |
| Imatra | 43.9°F | 41.0°F | 43.6°F |
| Espoo | 43.6°F | 43.6°F | 44.2°F |
| Savolinna | 43.0°F | 40.5°F | 43.0°F |
| Juvaskyla | 42.6°F | 42.1°F | 44.2°F |
| Seinajoki | 41.8°F | 44.3°F | 40.1°F |
| Oulu | 39.1°F | 37.3°F | 39.0°F |
| Saariselka | 38.0°F | 38.0°F | 38.0°F |
| Koli National Park | 37.9°F | 38.4°F | 37.4°F |
| Kemi | 34.1°F | 34.8°F | 36.9°F |
Charts below show average sea water temperature for Finland resorts with the warmest sea in May.
You can also check other months of the year to see sea temperature of Finland resorts at that time.
Places in Finland:
Name
°F
