Current sea water temperature:
+50.5°F
| Minimum sea water temperature in October: | 60.1°F |
| Maximum sea water temperature in October: | 43.3°F |
| Average sea water temperature in October: | 50.6°F |
| more information | |
14 days
forecast
forecast
| Kotka |
monthly
weather
weather
| Kotka |
Sea water temperature for the last 10 days:
| October 25 | 50.5°F | October 20 | 52.0°F |
| October 24 | 51.6°F | October 19 | 52.9°F |
| October 23 | 51.3°F | October 18 | 53.1°F |
| October 22 | 51.1°F | October 17 | 52.3°F |
| October 21 | 50.9°F | October 16 | 52.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Kotka?
Based on the data about daily sea water temperature for the last three years the warmest sea in Kotka was noticed in August, July and September.
Monthly Sea Temperatures in Kotka, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 61.2°F. The highest and lowest sea temperatures during the month were 66.7°F and 56.8°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 65.1°F. The highest and lowest sea temperatures during the month were 68.5°F and 62.1°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 59.8°F. The highest and lowest sea temperatures during the month were 62.6°F and 57.2°F.
current
weather
weather
| Kotka |
weather in
October
October
| Kotka |
Best time for vacation in Kotka
Kotka on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Kotka
Local time: 11:14
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


























