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In March warmest sea in Finland is usually observed in the following locations: Vantaa, Espoo, Helsinki.
Table below shows the average sea water temperature for marine resorts of Finland in March for the last three years.
| Place name | March 2025 | March 2024 | March 2023 |
|---|---|---|---|
| Vantaa | 34.1°F | 31.5°F | 32.4°F |
| Espoo | 34.0°F | 31.5°F | 32.4°F |
| Helsinki | 34.0°F | 31.5°F | 32.3°F |
| Kotka | 33.3°F | 30.6°F | 31.7°F |
| Turku | 33.2°F | 30.6°F | 31.5°F |
| Porvoo | 32.8°F | 30.5°F | 31.4°F |
| Pori | 32.7°F | 31.6°F | 31.4°F |
| Lahti | 32.5°F | 32.0°F | 32.0°F |
| Savolinna | 32.3°F | 32.0°F | 32.0°F |
| Juvaskyla | 32.1°F | 32.0°F | 32.1°F |
| Saariselka | 32.0°F | 32.0°F | 32.0°F |
| Imatra | 32.0°F | 32.0°F | 32.0°F |
| Koli National Park | 32.0°F | 32.0°F | 32.0°F |
| Lappeenranta | 31.9°F | 30.8°F | 31.1°F |
| Vaasa | 31.9°F | 31.1°F | 31.0°F |
| Seinajoki | 31.8°F | 30.5°F | 30.6°F |
| Oulu | 30.0°F | 29.1°F | 29.8°F |
| Kemi | 29.5°F | 28.8°F | 30.2°F |
Charts below show average sea water temperature for Finland resorts with the warmest sea in March.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
38.5
44.1
50.3
58.8
63.1
61.7
54.9
44.7
36
32.4
32.1
34.1
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
38.9
44.4
50.3
58.8
63.2
61.7
55.1
44.8
36.1
32.5
32.2
34.3
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
38.7
44.2
50.3
58.8
63.1
61.8
55.1
44.9
36.1
32.4
32.1
34.1
You can also check other months of the year to see sea temperature of Finland resorts at that time.
Places in Finland:
Name
°F
