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

Thu

21

-

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

Fri

22

-

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

Sat

23

-

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

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

-

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

Thu

04

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

BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Thursday 21 august

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

30

20

10

0

10

5

0

20

15

10

5

0

5

0

0.5

0

3

0

30

25

20

15

90

80

70

60

Fri 22

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

315° NW NW
310° NW NW
310° NW NW
310° NW NW
315° NW NW
330° NW NNW
335° NW NNW
350° N NNW
10° N N
10° N N
350° N N
325° NW NW
295° NW WNW
285° W WNW
305° NW NW
305° NW NW
305° NW NW
305° NW NW
310° NW NW
320° NW NW
325° NW NW
330° NW NNW
340° N NNW
350° N N

4 8 2 5 2
5 9 3 6 2
5 10 3 6 2
5 9 3 6 2
4 8 2 5 2
4 7 2 4 2
3 6 2 4 2
2 4 1 2 1
2 4 1 2 1
2 3 1 2 1
2 3 1 2 1
2 4 1 2 1
4 7 2 4 2
5 9 3 6 2
6 11 3 7 2
6 12 3 7 3
8 14 4 9 3
8 15 4 9 3
8 14 4 9 3
7 13 4 8 3
8 14 4 9 3
6 12 3 7 3
6 11 3 7 2
5 10 3 6 2

9 16 4 10 3
8 14 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 14 4 9 3
7 13 4 8 3
6 11 3 7 2
5 10 3 6 2
5 9 3 6 2
6 11 3 7 2
8 14 4 9 3
9 16 4 10 3
9 17 5 11 3
10 19 5 12 3
11 21 6 13 4
12 22 6 14 4
12 23 6 14 4
13 24 7 15 4
13 24 7 15 4
13 24 7 15 4
12 23 6 14 4
11 20 6 12 4
10 18 5 11 3

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
0.1
0.1
0.1
0.1
0.1
0.2
0.1
0.1
0.1
0.1

0.2
0.2
0.1
0.1
0.1
0.2
0.2
0.2
0.1
0.1
0.2
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.1
0.1
0.1

310° NW NW
310° NW NW
305° NW NW
305° NW NW
305° NW NW
305° NW NW
305° NW NW
305° NW WNW
300° NW WNW
300° NW WNW
300° NW WNW
300° 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
305° NW WNW
300° NW WNW
300° NW WNW

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
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1

4
5
5
5
6
6
6
7
7
8
8
9
9
9
9
10
10
10
9
9
7
7
7
7

20
25
30
30
35
40
40
45
45
50
70
80
80
90
90
90
80
80
50
20
20
25
40
40

0.7
1.1
1.7
2.6
3.3
3.8
3.9
3.6
3.0
2.2
1.4
0.9
0.7
1.0
1.7
2.5
3.4
4.0
4.2
4.0
3.4
2.5
1.6
0.9

20 68
20 68
20 67
20 67
20 67
20 67
19 67
19 67
19 67
19 67
19 67
19 67
20 67
20 67
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 67
20 67

5
45
75
80
90
85
85
75
95
95
65
55
75
80
80
75
80
45
85
80
85
35
35
80

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

>20
>20
>20
15
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019

0
0
0
0
0
0
0
0
0
0
1
3
3
3
3
4
3
3
1
0
0
0
0
0

19 65
18 65
19 65
19 65
19 66
19 66
19 65
18 65
18 65
19 67
21 69
22 71
23 73
23 74
23 74
24 74
24 74
24 74
23 74
23 73
22 72
21 70
20 68
20 67

17 63
17 62
17 62
17 62
17 63
18 64
17 63
17 63
18 64
19 66
25 77
27 80
28 82
29 84
29 83
26 78
26 79
26 80
26 79
25 77
23 74
22 71
21 69
17 63

13 24 4 7 15
14 26 4 7 16
13 25 4 7 16
12 23 4 6 14
10 18 3 5 11
8 15 3 4 9
7 13 3 4 8
6 12 3 3 7
6 11 2 3 7
6 11 2 3 7
6 12 3 3 7
7 13 3 4 8
8 15 3 4 9
9 16 3 4 10
11 21 4 6 13
12 23 4 6 14
13 24 4 7 15
14 26 4 7 16
14 26 4 7 16
14 26 4 7 16
14 26 4 7 16
15 27 4 8 17
14 26 4 7 16
13 24 4 7 15

1
1
1
1
1
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
1
1
1
1
1
1
1.1
1.1

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 northerly and mostly variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, weak and mostly variable.

For Cassy - Port de Lanton :
No gale warning.

The reliability of the situation is assessed at 90%.

In the evening, light cloudy spells.
NW wind force 2. Gusts reaching 13 knots in the evening. Rippled sea. Low, short swell from NW. Excellent visibility.

Tides at Arcachon

67

High tide 04h58 3.74m

Low tide 10h56 0.92m

73

High tide 17h19 4.06m

Low tide 23h31 0.62m

www.shom.fr - © SHOM 2025

Consult the tides for August

Thu

21

-

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

Fri

22

-

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

Sat

23

-

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

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

-

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

Thu

04

-

- 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