Average sea water temperature in April:
+32.4°F
| Minimum sea water temperature in April: | 37.6°F |
| Maximum sea water temperature in April: | 29.7°F |
Daily sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 32.0°F. The highest and lowest sea temperatures during the month were 32.2°F and 32.0°F.
sea water
temperature
temperature
| Koli National Park |
monthly
weather
weather
| Koli National Park |
current
weather
weather
| Koli National Park |
14 days
forecast
forecast
| Koli National Park |
Monthly sea water temperature in Koli National Park, °F
Which Finland resorts have warmest sea in April?
| Place name | April 2026 | April 2025 |
|---|---|---|
| Turku | 38.3°F | 39.0°F |
| Seinajoki | 38.3°F | 35.8°F |
| Vaasa | 37.5°F | 36.9°F |
| Espoo | 37.3°F | 39.7°F |
| Vantaa | 37.2°F | 39.1°F |
| Helsinki | 37.1°F | 39.3°F |
| Kotka | 37.0°F | 37.8°F |
| Oulu | 36.4°F | 32.0°F |
| Lahti | 36.3°F | 36.3°F |
| Lappeenranta | 36.3°F | 35.5°F |
| Pori | 36.2°F | 39.9°F |
| Porvoo | 36.0°F | 38.0°F |
| Savolinna | 34.7°F | 34.3°F |
| Juvaskyla | 32.8°F | 32.9°F |
| Saariselka | 32.5°F | 32.7°F |
| Imatra | 32.5°F | 33.6°F |
| Koli National Park | 32.0°F | 32.1°F |
| Kemi | 31.8°F | 31.8°F |
Best time for vacation in Koli National Park
Koli National Park on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Koli National Park
Local time: 20:29
April 27, monday
2100
36°F
S
16 mph
16 mph
April 28, tuesday
0000
34°F
S
18 mph
18 mph
0300
32°F
S
19 mph
19 mph
0600
32°F
S
21 mph
21 mph
0900
34°F
S
21 mph
21 mph
1200
39°F
S
20 mph
20 mph
1500
41°F
S
19 mph
19 mph
1800
41°F
S
17 mph
17 mph
