Current sea water temperature:
+33.1°F
| Minimum sea water temperature in April: | 46.8°F |
| Maximum sea water temperature in April: | 29.1°F |
| Average sea water temperature in April: | 35.6°F |
| more information | |
14 days
forecast
forecast
| Kotka |
monthly
weather
weather
| Kotka |
Sea water temperature for the last 10 days:
| April 5 | 33.1°F | March 31 | 33.8°F |
| April 4 | 33.4°F | March 30 | 32.7°F |
| April 3 | 33.6°F | March 29 | 33.6°F |
| April 2 | 33.3°F | March 28 | 33.1°F |
| April 1 | 33.6°F | March 27 | 32.7°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 65.4°F. The highest and lowest sea temperatures during the month were 75.9°F and 59.4°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 64.6°F. The highest and lowest sea temperatures during the month were 76.1°F and 56.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 61.4°F. The highest and lowest sea temperatures during the month were 65.1°F and 56.5°F.
current
weather
weather
| Kotka |
weather in
April
April
| Kotka |
Best time for vacation in Kotka
Kotka on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Kotka
Local time: 22:21
April 06, monday
0000
34°F
N
22 mph
22 mph
0300
36°F
N
14 mph
14 mph
0600
36°F
N
19 mph
19 mph
0900
36°F
N
22 mph
22 mph
1200
34°F
N
19 mph
19 mph
1500
34°F
N
15 mph
15 mph
1800
34°F
N
6 mph
6 mph
2100
32°F
W
6 mph
6 mph
