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September weather forecast in Sonderborg

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

	761 mmHg		79%
	5.6 m/s		+18

31 August, Sunday. day, 18°; night, 12°; partly cloudy

1 September, mon

	762 mmHg		78%
	5.7 m/s		+18

1 September, Monday. day, 19°; night, 12°; clear

2 September, tue

	762 mmHg		79%
	5.6 m/s		+17

2 September, Tuesday. day, 18°; night, 12°; partly cloudy

3 September, wed

	761 mmHg		80%
	6.2 m/s		+17

3 September, Wednesday. day, 19°; night, 12°; partly cloudy

4 September, thu

	761 mmHg		80%
	5.8 m/s		+17

4 September, Thursday. day, 19°; night, 12°; clear

5 September, fri

	761 mmHg		79%
	5.9 m/s		+18

5 September, Friday. day, 19°; night, 12°; clear

6 September, sat

	761 mmHg		80%
	6.4 m/s		+17

6 September, Saturday. day, 19°; night, 13°; partly cloudy

7 September, sun

	760 mmHg		80%
	5.9 m/s		+17

7 September, Sunday. day, 19°; night, 13°; partly cloudy

8 September, mon

	759 mmHg		81%
	6.6 m/s		+17

8 September, Monday. day, 19°; night, 13°; partly cloudy

9 September, tue

	759 mmHg		81%
	6.1 m/s		+17

9 September, Tuesday. day, 18°; night, 12°; rain

10 September, wed

	760 mmHg		82%
	5.8 m/s		+17

10 September, Wednesday. day, 18°; night, 12°; rain

11 September, thu

	759 mmHg		83%
	6.2 m/s		+17

11 September, Thursday. day, 18°; night, 12°; rain

12 September, fri

	759 mmHg		83%
	6.5 m/s		+17

12 September, Friday. day, 18°; night, 12°; rain

13 September, sat

	760 mmHg		80%
	6.8 m/s		+17

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

14 September, sun

	759 mmHg		82%
	6.5 m/s		+16

14 September, Sunday. day, 17°; night, 11°; rain

15 September, mon

	759 mmHg		80%
	7 m/s		+16

15 September, Monday. day, 16°; night, 11°; rain

16 September, tue

	759 mmHg		80%
	6.2 m/s		+16

16 September, Tuesday. day, 17°; night, 11°; partly cloudy

17 September, wed

	759 mmHg		81%
	6.3 m/s		+16

17 September, Wednesday. day, 16°; night, 11°; overcast

18 September, thu

	760 mmHg		80%
	5.8 m/s		+16

18 September, Thursday. day, 16°; night, 11°; partly cloudy

19 September, fri

	761 mmHg		81%
	5.9 m/s		+16

19 September, Friday. day, 16°; night, 10°; overcast

20 September, sat

	762 mmHg		83%
	6.1 m/s		+16

20 September, Saturday. day, 16°; night, 11°; overcast

21 September, sun

	761 mmHg		82%
	5.8 m/s		+16

21 September, Sunday. day, 16°; night, 10°; overcast

22 September, mon

	761 mmHg		81%
	6.3 m/s		+16

22 September, Monday. day, 17°; night, 10°; partly cloudy

23 September, tue

	760 mmHg		81%
	6 m/s		+16

23 September, Tuesday. day, 16°; night, 10°; clear

24 September, wed

	760 mmHg		82%
	6.1 m/s		+15

24 September, Wednesday. day, 16°; night, 10°; partly cloudy

25 September, thu

	760 mmHg		83%
	5.9 m/s		+15

25 September, Thursday. day, 16°; night, 10°; partly cloudy

26 September, fri

	760 mmHg		87%
	5.9 m/s		+15

26 September, Friday. day, 16°; night, 10°; rain

27 September, sat

	759 mmHg		85%
	6.1 m/s		+15

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

28 September, sun

	760 mmHg		84%
	6.1 m/s		+15

28 September, Sunday. day, 15°; night, 10°; rain

29 September, mon

	760 mmHg		85%
	6.1 m/s		+15

29 September, Monday. day, 15°; night, 10°; rain

30 September, tue

	760 mmHg		82%
	6.5 m/s		+15

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

1 October, wed

	758 mmHg		84%
	6.6 m/s		+15

1 October, Wednesday. day, 14°; night, 9°; rain

2 October, thu

	758 mmHg		84%
	6.8 m/s		+15

2 October, Thursday. day, 15°; night, 9°; rain

3 October, fri

	758 mmHg		85%
	7.2 m/s		+14

3 October, Friday. day, 14°; night, 9°; rain

4 October, sat

	758 mmHg		83%
	7 m/s		+14

4 October, Saturday. day, 14°; night, 9°; clear

Average data for 10 years

Sonderborg September

5

sunny days

11

days with precipitation

9

cloudy days

5 sunny days; 11 days with precipitation; 9 cloudy days;

81

%

air humidity

4.5

m/s

WindS

60

mm of precipitation

(9% of annual average)

+16

°C

Water temperature

air humidity 81%; 60 millimeters of precipitation (9% of annual average); Wind southerly 4.5 Meters per second; Water temperature +16°

Weather graphs for September

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

SW

SW

SW

S

S

S

SW

S

SW

SW

S

SW

SW

S

S

S

S

S

S

S

SW

S

S

S

S

S

S

SW

S

SW

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

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29

30

Daytime temperature

Night-time temperature

Cities near you

Copenhagen
Hamburg
Enschede
Bramsche
Malmo
Gothenburg
Hanover
Bremen
Hildesheim

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 Sonderborg is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Sonderborg has 11 rainy, 10 partly cloudy, 5 sunny, and 4 cloudy days in September. The rains are usually moderate.

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