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September weather forecast in Karlskrona

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

31 August, sun

	759 mmHg		82%
	5.7 m/s		+17

31 August, Sunday. day, 17°; night, 12°; rain

1 September, mon

	760 mmHg		80%
	5.4 m/s		+16

1 September, Monday. day, 17°; night, 11°; clear

2 September, tue

	761 mmHg		80%
	5.4 m/s		+16

2 September, Tuesday. day, 18°; night, 11°; partly cloudy

3 September, wed

	760 mmHg		81%
	5.5 m/s		+16

3 September, Wednesday. day, 18°; night, 11°; rain

4 September, thu

	760 mmHg		80%
	5.3 m/s		+16

4 September, Thursday. day, 18°; night, 12°; clear

5 September, fri

	760 mmHg		80%
	5.2 m/s		+16

5 September, Friday. day, 18°; night, 11°; clear

6 September, sat

	760 mmHg		81%
	5.5 m/s		+16

6 September, Saturday. day, 17°; night, 11°; clear

7 September, sun

	759 mmHg		81%
	5.6 m/s		+16

7 September, Sunday. day, 18°; night, 12°; clear

8 September, mon

	759 mmHg		81%
	6.3 m/s		+16

8 September, Monday. day, 17°; night, 12°; partly cloudy

9 September, tue

	758 mmHg		83%
	6.1 m/s		+16

9 September, Tuesday. day, 17°; night, 12°; rain

10 September, wed

	758 mmHg		83%
	5.7 m/s		+16

10 September, Wednesday. day, 17°; night, 12°; rain

11 September, thu

	759 mmHg		84%
	5.7 m/s		+16

11 September, Thursday. day, 17°; night, 11°; rain

12 September, fri

	758 mmHg		83%
	6 m/s		+15

12 September, Friday. day, 17°; night, 12°; rain

13 September, sat

	758 mmHg		83%
	6.3 m/s		+15

13 September, Saturday. day, 16°; night, 11°; rain

14 September, sun

	758 mmHg		81%
	6.8 m/s		+15

14 September, Sunday. day, 16°; night, 11°; partly cloudy

15 September, mon

	758 mmHg		80%
	6.9 m/s		+15

15 September, Monday. day, 16°; night, 10°; partly cloudy

16 September, tue

	757 mmHg		80%
	6.7 m/s		+15

16 September, Tuesday. day, 15°; night, 10°; rain

17 September, wed

	758 mmHg		80%
	6.2 m/s		+15

17 September, Wednesday. day, 15°; night, 10°; overcast

18 September, thu

	759 mmHg		81%
	6.1 m/s		+15

18 September, Thursday. day, 15°; night, 10°; rain

19 September, fri

	760 mmHg		81%
	5.7 m/s		+15

19 September, Friday. day, 15°; night, 10°; partly cloudy

20 September, sat

	761 mmHg		83%
	5.7 m/s		+15

20 September, Saturday. day, 15°; night, 10°; partly cloudy

21 September, sun

	760 mmHg		83%
	5.8 m/s		+15

21 September, Sunday. day, 15°; night, 10°; overcast

22 September, mon

	759 mmHg		84%
	6 m/s		+14

22 September, Monday. day, 15°; night, 10°; overcast

23 September, tue

	759 mmHg		81%
	5.9 m/s		+14

23 September, Tuesday. day, 15°; night, 9°; clear

24 September, wed

	759 mmHg		81%
	6.1 m/s		+14

24 September, Wednesday. day, 15°; night, 9°; clear

25 September, thu

	760 mmHg		82%
	5.8 m/s		+14

25 September, Thursday. day, 15°; night, 9°; partly cloudy

26 September, fri

	759 mmHg		85%
	5.8 m/s		+14

26 September, Friday. day, 15°; night, 10°; overcast

27 September, sat

	758 mmHg		84%
	6.7 m/s		+14

27 September, Saturday. day, 15°; night, 10°; overcast

28 September, sun

	758 mmHg		84%
	6.7 m/s		+14

28 September, Sunday. day, 14°; night, 9°; rain

29 September, mon

	759 mmHg		83%
	6.4 m/s		+14

29 September, Monday. day, 14°; night, 9°; rain

30 September, tue

	759 mmHg		83%
	6.8 m/s		+14

30 September, Tuesday. day, 14°; night, 9°; partly cloudy

1 October, wed

	758 mmHg		83%
	6.6 m/s		+14

1 October, Wednesday. day, 13°; night, 8°; overcast

2 October, thu

	757 mmHg		86%
	6.4 m/s		+13

2 October, Thursday. day, 13°; night, 9°; rain

3 October, fri

	758 mmHg		84%
	6.6 m/s		+13

3 October, Friday. day, 13°; night, 9°; partly cloudy

4 October, sat

	757 mmHg		85%
	6.6 m/s		+13

4 October, Saturday. day, 13°; night, 8°; rain

Average data for 10 years

Karlskrona September

7

sunny days

10

days with precipitation

8

cloudy days

7 sunny days; 10 days with precipitation; 8 cloudy days;

82

%

air humidity

4.6

m/s

WindS

55

mm of precipitation

(9% of annual average)

+15

°C

Water temperature

air humidity 82%; 55 millimeters of precipitation (9% of annual average); Wind southerly 4.6 Meters per second; Water temperature +15°

Weather graphs for September

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

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S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW

S

S

S

S

S

S

S

S

S

S

S

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

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27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Copenhagen
Gdansk
Poznan
Gothenburg
Malmo
Szczecin
Gdynia
Slupsk
Sopot

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Oslo
Yurmala
Palanga
Dublin
Buenos Aires

The weather forecast for September 2025 is based on historical data from the past 10 years.

In September, the weather in Karlskrona is typically warm. Average daily high temperature in September is about 16 degrees above zero. On average, Karlskrona has 10 rainy, 8 partly cloudy, 7 sunny, and 5 cloudy days in September. The rains are usually moderate.

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