Finland

Kotka weather in September

Weather in Kotka: September


	Average day temperature:	58.2°F
	Average night temperature:	53.6°F

	Sea water temperature:	59.3°F

	Number of sunny days:	10 days
	Day length:	11.5 - 14.2 hours

	Number of rainy days:	4 days
	Precipitation totals:	2.2 in.

more information

14 days
forecast

Kotka

sea water
temperature

Kotka

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2024

2023

2022

Day temperature

Night temperature

The highest day temperature during September of 2024 was 66°F. At the same time the lowest night temperature was 42°F. Day and night temperature averages during September were 60.5°F and 57.3°F.

Show year:

2024

2023

2022

The average sea water temperature in September of 2024 was 64.4°F. The highest and lowest sea temperatures during the month were 66.9°F and 60.6°F.

	Sunny days
	Partly cloudy days
	Cloudy days

27%

33%

40%

Number of sunny, partly cloudy and cloudy days in September is almost equal.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

0.6

1.1

1.7

2.2

2.8

3.3

3.9

2.4

2.3

3.1

3.2

2.2

1.7

1.6

1.4

1.7

1.8

2.2

2.4

2.3

3.1

2.3

3.2

2.2

1.7

1.6

1.4

1.7

1.8

2.2

Precipitation total value in Kotka in September is 2.3 in. Other months of the year show relatively similar values.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

2.5

5.0

7.6

10.1

12.6

15.1

17.6

20.1

13.7

14.7

14.4

11.7

10.5

10.2

9.4

10.2

10.8

11.7

13.1

13.7

14.7

14.4

12.4

11.7

10.5

10.2

9.4

10.2

10.8

11.7

13.1

The average wind speed value in September is 12.4 mph

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

2.2

4.4

6.6

8.8

11.0

13.2

15.3

1.3

1.9

3.9

8.1

11.3

12.8

9.9

6.1

4.3

2.7

1.5

1.3

1.9

3.9

6.9

8.1

11.3

12.8

9.9

6.1

4.3

2.7

1.5

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 6.9.