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

Wed

17

-

- 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

-

- 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

-

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

Sat

27

-

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

Sun

28

-

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

Mon

29

-

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

Tue

30

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

Wed

01

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

BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Wednesday 17 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)

15

10

5

0

25

20

15

10

5

0

10

5

0

15

10

5

0

5

0

0.5

0

3

0

40

30

20

10

0

90

80

70

60

50

40

Thu 18

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

75° E ENE
80° E E
80° E E
85° E E
90° E E
95° E E
100° E E
95° E E
100° E E
105° E ESE
115° SE ESE
110° E ESE
105° E ESE
105° E ESE
100° E ESE
75° E ENE
40° NE NE
30° NE NNE
25° NE NNE
20° N NNE
35° NE NNE
45° NE NE
50° NE NE
50° NE NE

3 6 2 4 2
4 7 2 4 2
4 8 2 5 2
4 8 2 5 2
5 9 3 6 2
5 10 3 6 2
5 10 3 6 2
5 10 3 6 2
5 9 3 6 2
5 10 3 6 2
6 11 3 7 2
5 10 3 6 2
5 10 3 6 2
5 9 3 6 2
3 6 2 4 2
2 4 1 2 1
2 3 1 2 1
2 4 1 2 1
3 6 2 4 2
4 7 2 4 2
4 8 2 5 2
5 9 3 6 2
5 9 3 6 2
4 8 2 5 2

6 12 3 7 3
7 13 4 8 3
8 14 4 9 3
8 14 4 9 3
8 15 4 9 3
9 16 4 10 3
9 16 4 10 3
9 16 4 10 3
8 15 4 9 3
10 18 5 11 3
11 20 6 12 4
11 20 6 12 4
10 19 5 12 3
10 19 5 12 3
9 17 5 11 3
7 13 4 8 3
6 12 3 7 3
7 13 4 8 3
7 13 4 8 3
8 14 4 9 3
8 14 4 9 3
8 15 4 9 3
8 15 4 9 3
8 14 4 9 3

0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1

0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
295° NW WNW

0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1

12
12
11
11
11
11
11
11
11
11
11
11
10
10
10
10
10
10
10
10
10
9
9
9

110
110
110
110
100
100
100
100
120
120
120
90
90
90
90
90
90
80
80
80
100
90
90
90

3.0
3.3
3.3
3.1
2.7
2.2
1.7
1.5
1.5
1.7
2.1
2.6
3.1
3.4
3.6
3.5
3.1
2.5
1.9
1.4
1.1
1.2
1.5
2.0

21 69
21 69
21 69
21 69
21 69
21 69
21 69
20 69
20 69
21 69
21 69
21 69
21 69
21 69
21 69
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70

0
0
5
5
5
5
5
5
5
5
5
0
0
0
5
5
0
5
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

15
15
15
15
15
15
10
10
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1024
1023
1023
1023
1023
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1021
1022
1022

0
0
0
0
0
0
0
0
0
1
3
4
6
6
5
4
2
1
0
0
0
0
0
0

15 58
14 58
14 56
13 56
13 55
13 55
11 52
10 49
12 53
17 62
20 67
22 71
24 74
25 77
26 79
27 81
27 81
27 80
25 77
23 73
21 70
20 67
18 65
17 63

13 56
13 55
12 54
12 53
11 52
11 51
9 49
8 46
11 51
17 63
21 70
27 81
30 86
30 85
31 88
32 89
31 88
29 85
26 78
24 76
22 72
18 64
17 62
16 60

9 17 3 5 11
9 17 3 5 11
10 18 3 5 11
10 18 3 5 11
10 18 3 5 11
10 18 3 5 11
10 19 3 5 12
11 20 4 6 12
11 21 4 6 13
11 20 4 6 12
10 19 3 5 12
8 14 3 4 9
5 9 2 3 6
2 3 1 1 2
4 7 2 2 4
7 13 3 4 8
9 17 3 5 11
11 21 4 6 13
12 22 4 6 14
11 20 4 6 12
10 19 3 5 12
10 18 3 5 11
9 16 3 4 10
8 15 3 4 9

2.2
2.1
2.1
2
2
1.9
1.9
1.8
1.8
1.7
1.7
1.6
1.6
1.5
1.5
1.4
1.4
1.4
1.3
1.3
1.3
1.3
1.2
1.3

Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Last updated 58min ago | Next update in 3h
Caption

Expert opinion

High 1026 hPa centered on the North of the Bay of Biscay moving at 18 knots to the East to be centered on the South-West of France.

For Cassy - Port de Lanton :
No gale warning.

The reliability of the situation is assessed at 90%.

Clear skies or light cloud. Sun hazing over from time to time. No precipitation. In the evening, clear skies.
E force 2 in the morning turning NNE in the evening. Gusts reaching 11 knots until the middle of the day. Smooth sea. Low, fairly long swell from WNW. Good visibility becoming excellent in the middle of the day.

Tides at Arcachon

41

High tide 02h41 3.31m

Low tide 08h30 1.46m

47

High tide 15h14 3.6m

Low tide 21h19 1.12m

www.shom.fr - © SHOM 2025

Consult the tides for September

Wed

17

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

Thu

18

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

Fri

19

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

Sat

20

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

Sun

21

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

Mon

22

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- 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

Sun

28

-

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

Mon

29

-

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

Tue

30

-

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

Wed

01

-

- 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