26.04
sun
sun
Day
36°F
S 29 mph
Precip.
63%
63%
Night
37°F
S 24 mph
Precip.
0%
0%
27.04
mon
mon
Day
41°F
S 22 mph
Precip.
0%
0%
Night
37°F
SE 22 mph
Precip.
0%
0%
28.04
tue
tue
Day
39°F
S 21 mph
Precip.
0%
0%
Night
37°F
SE 13 mph
Precip.
0%
0%
29.04
wed
wed
Day
41°F
SE 9 mph
Precip.
0%
0%
Night
39°F
SE 7 mph
Precip.
0%
0%
30.04
thu
thu
Day
45°F
SE 4 mph
Precip.
0%
0%
Night
41°F
S 7 mph
Precip.
0%
0%
01.05
fri
fri
Day
45°F
N 8 mph
Precip.
0%
0%
Night
41°F
NE 9 mph
Precip.
0%
0%
02.05
sat
sat
Day
43°F
NE 16 mph
Precip.
0%
0%
Night
43°F
E 14 mph
Precip.
0%
0%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 37.1°F. The highest and lowest sea temperatures during the month were 41.0°F and 32.4°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 45.7°F. The highest and lowest sea temperatures during the month were 52.7°F and 40.8°F.
Air temperature in Kotka, °F
Precipitation total in Kotka, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Kotka
Kotka on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Kotka
Local time: 10:50
April 26, sunday
1200
36°F
S
29 mph
29 mph
1500
39°F
S
27 mph
27 mph
1800
39°F
S
25 mph
25 mph
2100
39°F
S
25 mph
25 mph
April 27, monday
0000
37°F
S
24 mph
24 mph
0300
36°F
S
23 mph
23 mph
0600
34°F
S
23 mph
23 mph
0900
37°F
S
22 mph
22 mph
