27.08
thu
thu
Day

63°F
W 2 mph
Precip.
19%
19%
Night

61°F
E 6 mph
Precip.
18%
18%
28.08
fri
fri
Day

63°F
NE 6 mph
Precip.
29%
29%
Night

63°F
N 11 mph
Precip.
31%
31%
29.08
sat
sat
Day

61°F
NW 20 mph
Precip.
27%
27%
Night

63°F
N 22 mph
Precip.
28%
28%
30.08
sun
sun
Day

61°F
NE 12 mph
Precip.
35%
35%
Night

61°F
NE 16 mph
Precip.
18%
18%
31.08
mon
mon
Day

61°F
NE 14 mph
Precip.
19%
19%
Night

63°F
W 7 mph
Precip.
27%
27%
01.09
tue
tue
Day

61°F
NE 20 mph
Precip.
51%
51%
Night

59°F
NE 14 mph
Precip.
42%
42%
02.09
wed
wed
Day

59°F
E 17 mph
Precip.
45%
45%
Night

57°F
E 14 mph
Precip.
32%
32%
03.09
thu
thu
Day

59°F
NE 9 mph
Precip.
32%
32%
Night

55°F
E 16 mph
Precip.
71%
71%
04.09
fri
fri
Day

57°F
E 9 mph
Precip.
31%
31%
Night

59°F
N 6 mph
Precip.
19%
19%
05.09
sat
sat
Day

57°F
NW 8 mph
Precip.
72%
72%
Night

55°F
W 17 mph
Precip.
32%
32%
06.09
sun
sun
Day

48°F
SW 16 mph
Precip.
27%
27%
Night

50°F
S 9 mph
Precip.
16%
16%
07.09
mon
mon
Day

52°F
SE 13 mph
Precip.
13%
13%
Night

46°F
SE 11 mph
Precip.
10%
10%
08.09
tue
tue
Day

50°F
S 10 mph
Precip.
10%
10%
Night

50°F
SE 9 mph
Precip.
15%
15%
09.09
wed
wed
Day

52°F
SE 6 mph
Precip.
13%
13%
Night

54°F
NE 3 mph
Precip.
13%
13%
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 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.
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: 17:40
August 27, thursday
1800

64°F
NE
7 mph
7 mph
2100

63°F
E
6 mph
6 mph
August 28, friday
0000

61°F
E
6 mph
6 mph
0300

61°F
E
3 mph
3 mph
0600

61°F
NE
3 mph
3 mph
0900

63°F
N
5 mph
5 mph
1200

63°F
NE
6 mph
6 mph
1500

63°F
N
8 mph
8 mph



























