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September weather forecast in Dunkirk

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

	748 mmHg		73%
	6.2 m/s		+23

31 August, Sunday. day, 23°; night, 19°; clear

1 September, mon

	749 mmHg		72%
	5.9 m/s		+23

1 September, Monday. day, 22°; night, 19°; clear

2 September, tue

	749 mmHg		74%
	6.2 m/s		+23

2 September, Tuesday. day, 22°; night, 19°; clear

3 September, wed

	748 mmHg		74%
	6.1 m/s		+22

3 September, Wednesday. day, 23°; night, 19°; clear

4 September, thu

	748 mmHg		75%
	6.3 m/s		+22

4 September, Thursday. day, 23°; night, 19°; clear

5 September, fri

	749 mmHg		73%
	6.2 m/s		+23

5 September, Friday. day, 22°; night, 19°; clear

6 September, sat

	749 mmHg		74%
	6.1 m/s		+22

6 September, Saturday. day, 22°; night, 19°; clear

7 September, sun

	747 mmHg		76%
	7.3 m/s		+21

7 September, Sunday. day, 22°; night, 19°; rain

8 September, mon

	747 mmHg		79%
	7.4 m/s		+21

8 September, Monday. day, 21°; night, 18°; rain

9 September, tue

	748 mmHg		78%
	6.5 m/s		+21

9 September, Tuesday. day, 21°; night, 18°; rain

10 September, wed

	749 mmHg		75%
	6.6 m/s		+21

10 September, Wednesday. day, 21°; night, 18°; partly cloudy

11 September, thu

	749 mmHg		72%
	6.5 m/s		+21

11 September, Thursday. day, 21°; night, 17°; clear

12 September, fri

	748 mmHg		76%
	7 m/s		+21

12 September, Friday. day, 21°; night, 18°; rain

13 September, sat

	748 mmHg		78%
	6.9 m/s		+21

13 September, Saturday. day, 21°; night, 18°; rain

14 September, sun

	748 mmHg		77%
	7.1 m/s		+21

14 September, Sunday. day, 20°; night, 17°; rain

15 September, mon

	750 mmHg		74%
	6.8 m/s		+20

15 September, Monday. day, 20°; night, 16°; partly cloudy

16 September, tue

	750 mmHg		74%
	5.9 m/s		+20

16 September, Tuesday. day, 19°; night, 16°; clear

17 September, wed

	749 mmHg		74%
	6 m/s		+20

17 September, Wednesday. day, 20°; night, 17°; clear

18 September, thu

	749 mmHg		74%
	6.2 m/s		+20

18 September, Thursday. day, 20°; night, 17°; clear

19 September, fri

	749 mmHg		73%
	6.7 m/s		+20

19 September, Friday. day, 20°; night, 16°; clear

20 September, sat

	748 mmHg		75%
	6.8 m/s		+20

20 September, Saturday. day, 20°; night, 17°; clear

21 September, sun

	748 mmHg		74%
	6.7 m/s		+20

21 September, Sunday. day, 21°; night, 17°; partly cloudy

22 September, mon

	748 mmHg		75%
	7.5 m/s		+20

22 September, Monday. day, 20°; night, 16°; rain

23 September, tue

	749 mmHg		75%
	7.3 m/s		+20

23 September, Tuesday. day, 19°; night, 15°; rain

24 September, wed

	749 mmHg		72%
	7 m/s		+19

24 September, Wednesday. day, 19°; night, 15°; partly cloudy

25 September, thu

	748 mmHg		75%
	7.3 m/s		+20

25 September, Thursday. day, 19°; night, 15°; overcast

26 September, fri

	747 mmHg		76%
	7.3 m/s		+19

26 September, Friday. day, 19°; night, 15°; rain

27 September, sat

	747 mmHg		76%
	7.4 m/s		+19

27 September, Saturday. day, 19°; night, 16°; partly cloudy

28 September, sun

	746 mmHg		77%
	7.6 m/s		+19

28 September, Sunday. day, 18°; night, 16°; rain

29 September, mon

	748 mmHg		76%
	7.5 m/s		+18

29 September, Monday. day, 18°; night, 14°; rain

30 September, tue

	748 mmHg		74%
	7.5 m/s		+18

30 September, Tuesday. day, 17°; night, 14°; rain

1 October, wed

	748 mmHg		75%
	7.4 m/s		+18

1 October, Wednesday. day, 17°; night, 14°; clear

2 October, thu

	748 mmHg		77%
	7.7 m/s		+17

2 October, Thursday. day, 17°; night, 14°; partly cloudy

3 October, fri

	749 mmHg		77%
	7.6 m/s		+17

3 October, Friday. day, 17°; night, 13°; rain

4 October, sat

	749 mmHg		78%
	7.5 m/s		+17

4 October, Saturday. day, 17°; night, 14°; rain

Average data for 10 years

Dunkirk September

12

sunny days

12

days with precipitation

6

cloudy days

12 sunny days; 12 days with precipitation; 6 cloudy days;

75

%

air humidity

4.8

m/s

WindS

102

mm of precipitation

(8% of annual average)

+20

°C

Water temperature

air humidity 75%; 102 millimeters of precipitation (8% of annual average); Wind southerly 4.8 Meters per second; Water temperature +20°

Weather graphs for September

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

SE

S

S

S

S

S

S

S

S

SE

S

S

S

SW

S

S

S

S

SE

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

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Toronto
Detroit
Pittsburgh
Cleveland
Macedonia
Burlington
Buffalo
Milan
London

Cities with similar weather in September

Varna
Podgorica
Vancouver
The Golden Sands
Chicago
Genoa
Boston
Seattle
Balkhash

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

In September, the weather in Dunkirk is typically warm. Average daily high temperature in September is about 20 degrees above zero. On average, Dunkirk has 12 rainy, 12 sunny, 5 partly cloudy, and 1 cloudy day in September. The rains are usually heavy.

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