Current sea water temperature:
+55.8°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: | 50.4°F |
| more information | |
14 days
forecast
forecast
| Kotka |
monthly
weather
weather
| Kotka |
Sea water temperature for the last 10 days:
| October 4 | 55.8°F | September 29 | 57.9°F |
| October 3 | 56.7°F | September 28 | 57.6°F |
| October 2 | 56.7°F | September 27 | 57.9°F |
| October 1 | 56.3°F | September 26 | 57.4°F |
| September 30 | 57.2°F | September 25 | 58.1°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: 08:38
October 05, monday
0900
54°F
NE
12 mph
12 mph
1200
54°F
NE
13 mph
13 mph
1500
54°F
E
11 mph
11 mph
1800
55°F
NE
15 mph
15 mph
2100
55°F
NE
22 mph
22 mph
October 06, tuesday
0000
55°F
NE
26 mph
26 mph
0300
57°F
NE
29 mph
29 mph
0600
57°F
E
27 mph
27 mph
