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

31

-

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

Fri

01

-

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

Sat

02

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

Sun

03

-

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

Mon

04

-

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

Tue

05

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

Wed

06

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

Thu

07

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

Fri

08

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

Sat

09

-

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

Sun

10

-

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

Mon

11

-

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

Tue

12

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

Wed

13

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

Thu

14

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BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Thursday 31 july

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

20

10

0

10

5

0

0.5

0

3

0

30

25

20

15

90

80

70

60

Fri 1

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

300° NW WNW
305° NW NW
310° NW NW
315° NW NW
315° NW NW
320° NW NW
325° NW NW
330° NW NNW
330° NW NNW
330° NW NNW
340° N NNW
335° NW NNW
335° NW NNW
60° NE ENE
145° SE SSE
150° SE SSE
240° SW WSW
280° W W
285° W WNW
275° W W
285° W WNW
285° W WNW
290° W WNW
285° W WNW

9 16 4 10 3
10 19 5 12 3
10 18 5 11 3
9 16 4 10 3
8 14 4 9 3
6 12 3 7 3
6 11 3 7 2
5 9 3 6 2
5 9 3 6 2
4 7 2 4 2
3 6 2 4 2
3 5 1 3 1
2 3 1 2 1
0 0 0 0 0
1 2 1 1 1
1 1 0 1 1
1 2 1 1 1
4 7 2 4 2
5 10 3 6 2
7 13 4 8 3
7 13 4 8 3
8 15 4 9 3
9 16 4 10 3
9 16 4 10 3

16 29 8 18 5
16 30 8 19 5
16 30 8 19 5
16 29 8 18 5
15 27 8 17 4
13 24 7 15 4
11 21 6 13 4
10 18 5 11 3
9 17 5 11 3
8 15 4 9 3
7 13 4 8 3
5 9 3 6 2
4 8 2 5 2
5 9 3 6 2
5 10 3 6 2
4 8 2 5 2
5 10 3 6 2
8 15 4 9 3
10 19 5 12 3
12 22 6 14 4
13 24 7 15 4
13 25 7 16 4
15 27 8 17 4
16 29 8 18 5

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
0.1
0.1
0.1
0.1
0.1
0.1
0.1

0.4
0.4
0.4
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.2
0.2
0.3
0.3
0.3

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

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

7
7
7
6
5
5
5
5
5
5
6
6
6
6
6
6
6
6
6
7
7
6
6
6

15
15
15
15
15
20
25
25
25
25
45
60
40
40
40
45
35
35
40
30
20
15
9
10

1.2
1.5
2.0
2.6
3.1
3.4
3.5
3.2
2.8
2.2
1.6
1.3
1.2
1.4
1.8
2.3
2.8
3.2
3.3
3.2
2.8
2.3
1.8
1.5

21 69
21 69
21 69
21 69
21 69
21 69
21 69
21 69
20 69
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 69
21 69
21 69
21 69

30
25
15
15
15
15
50
75
75
75
85
85
85
90
90
85
80
85
95
90
95
95
90
20

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
25
30
40
35
30
20
0

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

1020
1020
1020
1019
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1018
1019
1019
1018
1018
1018
1018

1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
2
2
2
3
6

24 75
23 73
22 72
22 71
21 69
20 67
19 66
19 66
19 65
19 65
18 65
18 65
18 65
18 65
18 64
18 65
20 67
21 69
21 70
22 71
22 71
22 71
22 72
23 73

28 83
26 79
25 76
23 73
21 70
17 63
17 62
17 62
17 62
17 63
17 63
17 63
18 64
18 64
17 63
19 66
20 68
24 75
24 75
25 78
25 76
26 80
27 80
26 79

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

0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8

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

Expert opinion

A northwesterly, moderate and mostly variable flow prevails over the whole area.

For Cassy - Port de Lanton :
No gale warning.

The reliability of the situation is assessed at 90%.

Cloudy spells, sometimes dense. No precipitation. In the evening, light cloudy spells.
WNW wind force 3 from the middle of the day. Gusts reaching 16 knots in the evening. Smooth sea. Low, short swell from WNW. Excellent visibility.

Tides at Arcachon

58

Low tide 04h10 1.02m

High tide 10h19 3.5m

53

Low tide 16h19 1.14m

High tide 22h40 3.51m

www.shom.fr - © SHOM 2025

Consult the tides for July

Thu

31

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

Fri

01

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

Sat

02

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Sun

03

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Mon

04

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

Tue

05

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

Wed

06

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

Thu

07

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

Fri

08

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

Sat

09

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

Sun

10

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

Mon

11

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

Tue

12

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

Wed

13

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

Thu

14

-

- 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