Average sea water temperature in April:
+36.3°F
| Minimum sea water temperature in April: | 45.9°F |
| Maximum sea water temperature in April: | 29.1°F |
Daily sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 39.3°F. The highest and lowest sea temperatures during the month were 43.3°F and 35.8°F.
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| Helsinki |
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Monthly sea water temperature in Helsinki, °F
Which Finland resorts have warmest sea in April?
| Place name | April 2025 | April 2024 |
|---|---|---|
| Pori | 39.9°F | 35.2°F |
| Espoo | 39.7°F | 35.0°F |
| Helsinki | 39.3°F | 34.8°F |
| Vantaa | 39.1°F | 34.8°F |
| Turku | 39.0°F | 34.6°F |
| Porvoo | 38.0°F | 34.7°F |
| Kotka | 37.8°F | 34.8°F |
| Vaasa | 36.9°F | 32.4°F |
| Lahti | 36.3°F | 35.1°F |
| Seinajoki | 35.8°F | 31.0°F |
| Lappeenranta | 35.5°F | 33.8°F |
| Savolinna | 34.3°F | 33.1°F |
| Imatra | 33.6°F | 32.4°F |
| Juvaskyla | 32.9°F | 32.6°F |
| Saariselka | 32.7°F | 32.7°F |
| Koli National Park | 32.1°F | 32.1°F |
| Oulu | 32.0°F | 29.9°F |
| Kemi | 31.8°F | 29.8°F |
Best time for vacation in Helsinki
Helsinki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Helsinki
Local time: 11:03
December 05, friday
1200
39°F
N
6 mph
6 mph
1500
39°F
N
5 mph
5 mph
1800
39°F
NW
6 mph
6 mph
2100
41°F
NW
6 mph
6 mph
December 06, saturday
0000
41°F
NW
6 mph
6 mph
0300
41°F
NW
7 mph
7 mph
0600
39°F
W
9 mph
9 mph
0900
41°F
W
11 mph
11 mph
