Weather Cassy - Port de Lanton - Detailed bulletin - Free 15-day Marine forecasts

Lanton FRALongitude : -1°3’,402 W Latitude : 44°42’,498 N Altitude : 0m

Sat

13

-

- nd - km/h - bft - m/s - mph

Sun

14

-

- nd - km/h - bft - m/s - mph

Mon

15

-

- nd - km/h - bft - m/s - mph

Tue

16

-

- nd - km/h - bft - m/s - mph

Wed

17

-

- nd - km/h - bft - m/s - mph

Thu

18

-

- nd - km/h - bft - m/s - mph

Fri

19

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- nd - km/h - bft - m/s - mph

Sat

20

-

- nd - km/h - bft - m/s - mph

Sun

21

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- nd - km/h - bft - m/s - mph

Mon

22

-

- nd - km/h - bft - m/s - mph

Tue

23

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- nd - km/h - bft - m/s - mph

Wed

24

-

- nd - km/h - bft - m/s - mph

Thu

25

-

- nd - km/h - bft - m/s - mph

Fri

26

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- nd - km/h - bft - m/s - mph

Sat

27

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- nd - km/h - bft - m/s - mph

BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Saturday 13 september

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell height (m) (m)

Total sea (m)

Total wave height (m)

Wind (m)

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Cloud cover(%)

Amount of precipitation(mm)

Type of precipitation

Precipitation risk(%)

Visibility(km)

Pressure(hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

Offshore

Offshore wind

Offshore sea (m)

20

15

10

5

0

40

30

20

10

0

10

5

0

25

20

15

10

5

0

10

5

0

0.5

0

3

0

25

20

15

10

75

70

65

60

55

Sun 14

03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
20h
21h
22h
23h
00h
01h
02h

210° SW SSW
210° SW SSW
220° SW SW
240° SW WSW
240° SW WSW
240° SW WSW
245° SW WSW
245° SW WSW
255° W WSW
255° W WSW
255° W WSW
255° W WSW
255° W WSW
260° W W
260° W W
265° W W
260° W W
260° W W
255° W WSW
250° W WSW
240° SW WSW
225° SW SW
210° SW SSW
195° S SSW

3 5 1 3 1
3 6 2 4 2
4 7 2 4 2
5 9 3 6 2
5 9 3 6 2
4 8 2 5 2
4 8 2 5 2
5 10 3 6 2
8 15 4 9 3
9 16 4 10 3
10 18 5 11 3
11 20 6 12 4
11 21 6 13 4
11 21 6 13 4
11 21 6 13 4
10 19 5 12 3
9 16 4 10 3
8 14 4 9 3
6 12 3 7 3
6 12 3 7 3
6 11 3 7 2
5 10 3 6 2
5 9 3 6 2
5 10 3 6 2

5 10 3 6 2
8 15 4 9 3
6 12 3 7 3
9 16 4 10 3
9 17 5 11 3
9 16 4 10 3
9 16 4 10 3
9 17 5 11 3
12 22 6 14 4
13 25 7 16 4
15 28 8 17 4
17 31 9 19 5
17 32 9 20 5
18 33 9 21 5
18 33 9 21 5
18 33 9 21 5
16 30 8 19 5
15 27 8 17 4
13 24 7 15 4
11 21 6 13 4
11 21 6 13 4
10 18 5 11 3
9 17 5 11 3
10 19 5 12 3

0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2

0.6
0.6
0.6
0.6
0.5
0.4
0.4
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.5
0.5
0.4
0.5
0.4
0.4
0.5

0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0

295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
300° NW WNW

0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2

11
11
11
10
10
11
11
10
10
10
10
10
10
10
9
9
9
9
9
9
10
9
9
10

120
120
110
110
110
90
110
110
110
80
80
80
100
90
50
70
80
70
80
90
90
70
70
90

0.9
0.8
1.1
1.7
2.5
3.3
3.8
3.9
3.7
3.2
2.4
1.6
1.1
0.8
1.0
1.4
2.1
2.8
3.4
3.8
3.7
3.4
2.7
2.0

21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69

100
60
85
95
90
100
95
100
100
95
100
85
95
70
60
90
85
95
60
70
90
80
100
100

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

0
0
0
0
0
0
0
0
20
20
20
20
20
20
20
20
0
0
0
0
0
0
0
0

>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1020
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

0
0
0
0
0
0
0
1
1
2
2
3
2
3
2
1
0
0
0
0
0
0
0
0

17 62
17 63
17 63
17 63
18 64
18 64
18 65
19 66
20 67
20 68
21 69
21 70
21 70
21 70
21 69
20 69
20 68
19 67
19 66
19 65
19 65
18 65
18 65
18 65

16 60
16 60
16 60
15 60
16 60
16 61
17 62
18 64
18 65
22 72
23 74
23 74
23 74
22 71
21 70
20 69
17 62
17 62
16 61
16 61
16 61
16 61
16 61
16 62

15 27 4 8 17
16 29 5 8 18
15 28 4 8 17
16 29 5 8 18
16 29 5 8 18
16 29 5 8 18
15 28 4 8 17
15 27 4 8 17
14 26 4 7 16
14 26 4 7 16
15 27 4 8 17
15 28 4 8 17
16 29 5 8 18
16 30 5 8 19
16 30 5 8 19
16 29 5 8 18
15 28 4 8 17
15 27 4 8 17
15 27 4 8 17
14 26 4 7 16
14 26 4 7 16
13 25 4 7 16
15 27 4 8 17
15 27 4 8 17

2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.1
2.1
2.1
2.1
2.1
2.1
2.1
2.1
2.1
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2

Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Last updated 2h ago | Next update in 1h
Caption

Expert opinion

A westerly, strong and mostly variable flow prevails over the whole area.

For Cassy - Port de Lanton :
No gale warning.

We are 90% sure of the situation, because the atmosphere might not be as stable as forecast.

Very cloudy skies. Overcast for a time in the morning. The risk of seeing rain will remain low. In the evening, very cloudy.
Chance of light rain. WSW force 3 in the morning temporarily force 4 in the middle of the day. Gusts reaching 18 knots from the middle of the day. Smooth sea. Low, fairly long swell from WNW. Excellent visibility.

Tides at Arcachon

75

Low tide 03h44 0.77m

High tide 09h55 3.95m

66

Low tide 16h06 0.83m

High tide 22h25 3.79m

www.shom.fr - © SHOM 2025

Consult the tides for September

Sat

13

-

- nd - km/h - bft - m/s - mph

Sun

14

-

- nd - km/h - bft - m/s - mph

Mon

15

-

- nd - km/h - bft - m/s - mph

Tue

16

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- nd - km/h - bft - m/s - mph

Wed

17

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- nd - km/h - bft - m/s - mph

Thu

18

-

- nd - km/h - bft - m/s - mph

Fri

19

-

- nd - km/h - bft - m/s - mph

Sat

20

-

- nd - km/h - bft - m/s - mph

Sun

21

-

- nd - km/h - bft - m/s - mph

Mon

22

-

- nd - km/h - bft - m/s - mph

Tue

23

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- nd - km/h - bft - m/s - mph

Wed

24

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- nd - km/h - bft - m/s - mph

Thu

25

-

- nd - km/h - bft - m/s - mph

Fri

26

-

- nd - km/h - bft - m/s - mph

Sat

27

-

- nd - km/h - bft - m/s - mph

* +33 1 77 86 86 86: short number of forecasts for France accessible from France - €2.99 per call** 0899 70 12 34: number of forecasts for France and the World accessible from France - €2.99 per call

Weather port Cassy - Port de Lanton

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Arcachon