Average sea water temperature in October:
+50.6°F
| Minimum sea water temperature in October: | 60.1°F |
| Maximum sea water temperature in October: | 43.3°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 53.7°F. The highest and lowest sea temperatures during the month were 57.0°F and 50.5°F.
Monthly sea water temperature in Kotka, °F
Which Finland resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Kotka | 53.7°F | 51.4°F |
| Vantaa | 53.2°F | 50.7°F |
| Helsinki | 53.0°F | 50.5°F |
| Espoo | 52.9°F | 50.5°F |
| Turku | 52.5°F | 52.0°F |
| Lahti | 52.5°F | 51.3°F |
| Savolinna | 51.7°F | 50.3°F |
| Juvaskyla | 51.5°F | 50.8°F |
| Lappeenranta | 51.0°F | 49.3°F |
| Porvoo | 51.0°F | 48.9°F |
| Imatra | 50.9°F | 49.5°F |
| Koli National Park | 50.8°F | 48.8°F |
| Pori | 50.7°F | 48.1°F |
| Vaasa | 48.4°F | 46.2°F |
| Seinajoki | 48.4°F | 46.0°F |
| Saariselka | 46.7°F | 45.7°F |
| Kemi | 46.4°F | 45.4°F |
| Oulu | 46.4°F | 44.9°F |
Best time for vacation in Kotka
Kotka on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Kotka
Local time: 11:59
October 25, sunday
1200
52°F
N
19 mph
19 mph
1500
52°F
N
25 mph
25 mph
1800
52°F
NW
22 mph
22 mph
2100
54°F
NW
28 mph
28 mph
October 26, monday
0000
54°F
N
30 mph
30 mph
0300
52°F
N
32 mph
32 mph
0600
52°F
N
34 mph
34 mph
0900
52°F
N
22 mph
22 mph
