Average sea water temperature in June:
+55.8°F
| Minimum sea water temperature in June: | 72.3°F |
| Maximum sea water temperature in June: | 45.3°F |
Daily sea water temperature in June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 56.0°F. The highest and lowest sea temperatures during the month were 60.3°F and 48.9°F.
Monthly sea water temperature in Kotka, °F
Which Finland resorts have warmest sea in June?
| Place name | June 2026 | June 2025 |
|---|---|---|
| Lappeenranta | 61.3°F | 58.1°F |
| Lahti | 60.7°F | 57.4°F |
| Pori | 59.9°F | 57.4°F |
| Vaasa | 59.4°F | 56.2°F |
| Savolinna | 59.3°F | 56.6°F |
| Turku | 58.8°F | 55.2°F |
| Imatra | 58.6°F | 56.2°F |
| Oulu | 58.5°F | 56.6°F |
| Juvaskyla | 58.2°F | 55.0°F |
| Porvoo | 57.4°F | 56.6°F |
| Seinajoki | 57.3°F | 53.7°F |
| Koli National Park | 56.5°F | 54.7°F |
| Kotka | 56.0°F | 55.3°F |
| Kemi | 55.8°F | 54.0°F |
| Espoo | 55.1°F | 53.5°F |
| Helsinki | 55.0°F | 53.9°F |
| Vantaa | 54.4°F | 53.4°F |
| Saariselka | 44.9°F | 45.4°F |
Best time for vacation in Kotka
Kotka on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Kotka
Local time: 13:42
June 26, friday
1500
63°F
NE
12 mph
12 mph
1800
63°F
E
14 mph
14 mph
2100
61°F
E
11 mph
11 mph
June 27, saturday
0000
57°F
E
3 mph
3 mph
0300
57°F
NE
15 mph
15 mph
0600
57°F
N
8 mph
8 mph
0900
61°F
SE
5 mph
5 mph
1200
64°F
SE
5 mph
5 mph
