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September weather forecast in La Seyne-sur-Mer

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

	744 mmHg		66%
	6.1 m/s		+23

31 August, Sunday. day, 24°; night, 18°; clear

1 September, mon

	744 mmHg		67%
	6.1 m/s		+23

1 September, Monday. day, 24°; night, 18°; clear

2 September, tue

	745 mmHg		69%
	5.3 m/s		+23

2 September, Tuesday. day, 24°; night, 18°; clear

3 September, wed

	745 mmHg		71%
	5.4 m/s		+23

3 September, Wednesday. day, 23°; night, 18°; partly cloudy

4 September, thu

	745 mmHg		71%
	5.5 m/s		+23

4 September, Thursday. day, 24°; night, 18°; rain

5 September, fri

	745 mmHg		69%
	6.5 m/s		+23

5 September, Friday. day, 23°; night, 18°; clear

6 September, sat

	744 mmHg		69%
	6 m/s		+23

6 September, Saturday. day, 24°; night, 18°; clear

7 September, sun

	744 mmHg		70%
	6.3 m/s		+22

7 September, Sunday. day, 24°; night, 18°; clear

8 September, mon

	745 mmHg		71%
	5.9 m/s		+22

8 September, Monday. day, 23°; night, 18°; rain

9 September, tue

	745 mmHg		70%
	6 m/s		+22

9 September, Tuesday. day, 23°; night, 18°; clear

10 September, wed

	745 mmHg		70%
	5.8 m/s		+23

10 September, Wednesday. day, 23°; night, 17°; clear

11 September, thu

	744 mmHg		69%
	5.9 m/s		+22

11 September, Thursday. day, 23°; night, 17°; clear

12 September, fri

	744 mmHg		69%
	6.3 m/s		+22

12 September, Friday. day, 23°; night, 17°; clear

13 September, sat

	744 mmHg		70%
	6.9 m/s		+22

13 September, Saturday. day, 22°; night, 17°; clear

14 September, sun

	744 mmHg		70%
	6.6 m/s		+21

14 September, Sunday. day, 23°; night, 17°; rain

15 September, mon

	744 mmHg		72%
	6.3 m/s		+21

15 September, Monday. day, 22°; night, 17°; rain

16 September, tue

	743 mmHg		74%
	6.1 m/s		+21

16 September, Tuesday. day, 22°; night, 17°; partly cloudy

17 September, wed

	743 mmHg		72%
	6.4 m/s		+21

17 September, Wednesday. day, 22°; night, 16°; clear

18 September, thu

	743 mmHg		73%
	6.3 m/s		+21

18 September, Thursday. day, 21°; night, 16°; rain

19 September, fri

	744 mmHg		71%
	7.4 m/s		+21

19 September, Friday. day, 22°; night, 16°; rain

20 September, sat

	745 mmHg		73%
	5.7 m/s		+20

20 September, Saturday. day, 21°; night, 15°; clear

21 September, sun

	745 mmHg		74%
	5.3 m/s		+21

21 September, Sunday. day, 21°; night, 16°; partly cloudy

22 September, mon

	745 mmHg		74%
	5.7 m/s		+21

22 September, Monday. day, 21°; night, 16°; overcast

23 September, tue

	744 mmHg		72%
	6.3 m/s		+21

23 September, Tuesday. day, 21°; night, 16°; clear

24 September, wed

	744 mmHg		73%
	6.1 m/s		+21

24 September, Wednesday. day, 21°; night, 15°; rain

25 September, thu

	744 mmHg		72%
	6.5 m/s		+21

25 September, Thursday. day, 21°; night, 15°; partly cloudy

26 September, fri

	745 mmHg		71%
	6.4 m/s		+21

26 September, Friday. day, 21°; night, 15°; clear

27 September, sat

	745 mmHg		72%
	5.5 m/s		+21

27 September, Saturday. day, 21°; night, 15°; clear

28 September, sun

	746 mmHg		71%
	6.5 m/s		+21

28 September, Sunday. day, 21°; night, 15°; clear

29 September, mon

	746 mmHg		73%
	6 m/s		+21

29 September, Monday. day, 21°; night, 15°; partly cloudy

30 September, tue

	745 mmHg		76%
	5.8 m/s		+21

30 September, Tuesday. day, 21°; night, 15°; partly cloudy

1 October, wed

	745 mmHg		76%
	5.8 m/s		+21

1 October, Wednesday. day, 21°; night, 15°; clear

2 October, thu

	744 mmHg		74%
	6.4 m/s		+21

2 October, Thursday. day, 21°; night, 15°; clear

3 October, fri

	745 mmHg		72%
	6.9 m/s		+20

3 October, Friday. day, 21°; night, 15°; clear

4 October, sat

	745 mmHg		74%
	6.1 m/s		+20

4 October, Saturday. day, 20°; night, 15°; clear

Average data for 10 years

La Seyne-sur-Mer September

16

sunny days

7

days with precipitation

2

cloudy days

16 sunny days; 7 days with precipitation; 2 cloudy days;

71

%

air humidity

4.19

m/s

WindSW

61

mm of precipitation

(9% of annual average)

+22

°C

Water temperature

air humidity 71%; 61 millimeters of precipitation (9% of annual average); Wind south-westerly 4.19 Meters per second; Water temperature +22°

Weather graphs for September

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

SW

SW

S

SW

SW

SW

S

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

S

S

SW

SW

SW

SW

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

24

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Nice
Marseilles
Genoa
Geneva
Turin
Lyon
Monaco
Antibes
Cannes

Cities with similar weather in September

Gagra
Istanbul
Pitsunda
Lisbon
Rimini
Tivat
The Sunny Beach
Porto
Pomorie

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

In September, the weather in La Seyne-sur-Mer is typically warm. Average daily high temperature in September is about 22 degrees above zero. On average, La Seyne-sur-Mer has 16 sunny, 7 rainy, 6 partly cloudy, and 1 cloudy day in September. The rains are usually heavy.

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