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 53.1°F. The highest and lowest sea temperatures during the month were 57.0°F and 49.3°F.
Monthly sea water temperature in Kotka, °F
Which Finland resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Kotka | 53.1°F | 51.4°F |
| Vantaa | 52.6°F | 50.7°F |
| Helsinki | 52.4°F | 50.5°F |
| Espoo | 52.4°F | 50.5°F |
| Turku | 51.8°F | 52.0°F |
| Lahti | 51.6°F | 51.3°F |
| Savolinna | 50.8°F | 50.3°F |
| Juvaskyla | 50.7°F | 50.8°F |
| Porvoo | 50.4°F | 48.9°F |
| Lappeenranta | 50.3°F | 49.3°F |
| Imatra | 50.0°F | 49.5°F |
| Pori | 49.9°F | 48.1°F |
| Koli National Park | 49.6°F | 48.8°F |
| Seinajoki | 47.7°F | 46.0°F |
| Vaasa | 47.6°F | 46.2°F |
| Saariselka | 45.9°F | 45.7°F |
| Oulu | 45.6°F | 44.9°F |
| Kemi | 45.5°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: 01:05
November 15, sunday
0300
37°F
NE
12 mph
12 mph
0600
43°F
NE
16 mph
16 mph
0900
45°F
NE
17 mph
17 mph
1200
46°F
NE
19 mph
19 mph
1500
46°F
NE
21 mph
21 mph
1800
45°F
NE
21 mph
21 mph
2100
45°F
NE
21 mph
21 mph
November 16, monday
0000
45°F
NE
20 mph
20 mph
