Measurements:
°C
°F
CURRENT WEATHER
23:19
Kotka
62°F
N 17 mph
Feels like: 62°F
Precip: 26%
World Resorts Finland Kotka Weather

14 Day Weather Forecast

09.08
tue
DAY
60°F
N 20 mph
precip
29%
NIGHT
62°F
N 17 mph
precip
26%
09.09
wed
DAY
62°F
NE 16 mph
precip
43%
NIGHT
62°F
N 17 mph
precip
89%
09.10
thu
DAY
60°F
NE 28 mph
precip
51%
NIGHT
56°F
NE 25 mph
precip
21%
09.11
fri
DAY
60°F
E 20 mph
precip
5%
NIGHT
58°F
E 13 mph
precip
25%
09.12
sat
DAY
60°F
NE 24 mph
precip
30%
NIGHT
56°F
E 6 mph
precip
18%
09.13
sun
DAY
60°F
NE 19 mph
precip
34%
NIGHT
60°F
NE 15 mph
precip
44%
09.14
mon
DAY
58°F
E 6 mph
precip
75%
NIGHT
52°F
SE 9 mph
precip
16%
09.15
tue
DAY
54°F
NE 4 mph
precip
8%
NIGHT
60°F
NE 19 mph
precip
20%
09.16
wed
DAY
60°F
NE 26 mph
precip
33%
NIGHT
58°F
E 17 mph
precip
24%
09.17
thu
DAY
60°F
E 7 mph
precip
6%
NIGHT
52°F
SW 17 mph
precip
61%
09.18
fri
DAY
50°F
SW 16 mph
precip
27%
NIGHT
52°F
SW 7 mph
precip
25%
09.19
sat
DAY
54°F
S 9 mph
precip
17%
NIGHT
50°F
SW 10 mph
precip
8%
09.20
sun
DAY
52°F
S 8 mph
precip
20%
NIGHT
50°F
SW 8 mph
precip
7%
09.21
mon
DAY
52°F
W 7 mph
precip
4%
NIGHT
50°F
SW 13 mph
precip
5%

Kotka Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Kotka was 62.7°F. The maximum and minimum values were 57.2°F and 66.8°F respectively.

Kotka on the Weather Map

Best Time to Visit Kotka
The most sunny months:
July 15 days
June 14 days
May 13 days
The most warm months:
July 68.1 °F
August 67.1 °F
June 61.2 °F
Warmest sea temperature:
August 65.7 °F
July 64.9 °F
September 60.5 °F
The most cold months:
February 23.8 °F
January 23.9 °F
March 30.8 °F
The most rainy months:
October 5 days
August 5 days
December 4 days
The most windy months:
December 14 mph
November 14 mph
October 14 mph
more details
Finland Resorts:
NAME
F°
Espoo +60
Helsinki +60
Juvaskyla +54
Kemi +54
Koli National Park +56
Lahti +58
Lappeenranta +58
Oulu +54
Pori +60
Saariselka +44
Savolinna +56
Seinajoki +56
Turku +60
Vaasa +60
Vantaa +60
all resorts
24 Hours Weather Forecast
Kotka
Local time: 23:19
09 sep, wednesday
0000 62°F
N
17 mph
0300 62°F
NE
17 mph
0600 62°F
NE
19 mph
0900 62°F
NE
19 mph
1200 62°F
NE
16 mph
1500 62°F
NE
14 mph
1800 62°F
NE
15 mph
2100 62°F
N
11 mph