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

Lanton FRALon : -1°3’,402 W Lat : 44°42’,498 N Alt : 0m

Fri

09

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Sat

10

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Sun

11

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Mon

12

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Tue

13

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Wed

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Thu

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Fri

16

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Sat

17

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Sun

18

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Mon

19

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Tue

20

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Wed

21

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Thu

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Fri

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BULLETIN

(* established in local time)

Reliability 80%

Wind alert - Warning strong gale offshore.

Friday 9 jan

METEO CONSULT Run : 8/01 16Z Mesh : 1km Updated, 10h ago Update imminent

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (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 (%)

Storm risk.(%)

Visibility(km)

Pressure(hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

Offshore

Offshore wind

Offshore sea (m)

60

50

40

30

20

10

100

90

80

70

60

50

40

30

20

30

20

10

0

70

60

50

40

30

20

10

15

10

5

0

1

0.5

0

3

0

15

10

5

0

55

50

45

40

35

                                    
                                                                         Sat 10
                                                            
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                        Run : 8/01 16Z
                Mesh : 1km
                Updated, 10h ago
                Update imminent

Sat 10

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

270° W W
270° W W
270° W W
275° W W
280° W W
275° W W
270° W W
270° W W
280° W W
275° W W
285° W WNW
295° NW WNW
300° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
300° NW WNW
295° NW WNW
300° NW WNW
305° NW WNW
295° NW WNW
290° W WNW
295° NW WNW
300° NW WNW

23 42 12 26 6
24 45 13 28 6
25 47 13 29 6
25 47 13 29 6
22 40 11 25 6
20 37 10 23 5
22 41 11 25 6
24 45 13 28 6
25 47 13 29 6
26 48 13 30 6
28 51 14 32 7
24 45 13 28 6
21 39 11 24 6
21 39 11 24 6
18 34 9 21 5
20 37 10 23 5
13 24 7 15 4
14 26 7 16 4
14 26 7 16 4
15 28 8 17 4
17 32 9 20 5
16 30 8 19 5
17 31 9 19 5
16 30 8 19 5

45 84 23 52 9
47 87 24 54 9
48 88 24 55 9
45 83 23 52 9
46 85 24 53 9
43 80 22 50 9
40 75 21 47 9
44 82 23 51 9
47 87 24 54 9
50 92 26 57 10
52 96 27 60 10
49 91 25 57 10
44 81 23 50 9
41 76 21 47 9
39 73 20 45 8
38 71 20 44 8
36 66 18 41 8
27 50 14 31 7
32 59 16 37 7
31 58 16 36 7
34 63 18 39 8
33 61 17 38 7
35 64 18 40 8
31 58 16 36 7

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

1.2
1.2
1.2
0.9
0.9
1
1
1.1
1.1
1.1
1
1.2
1.1
1.1
1
0.9
0.8
0.9
0.8
0.9
0.8
0.8
0.9
0.9

0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2

280° W W
290° W WNW
290° W WNW
290° W WNW
295° NW WNW
295° NW WNW
280° W W
265° W W
265° W W
265° W W
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
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
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

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

60
50
50
45
45
60
60
45
45
45
45
50
60
60
60
60
50
60
60
60
50
45
60
60

1.1
1.5
2.2
2.9
3.5
3.8
3.8
3.5
2.9
2.1
1.5
1.1
1.0
1.3
1.8
2.4
3.0
3.4
3.5
3.4
2.9
2.2
1.6
1.2

11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52

10
0
80
70
85
100
100
100
100
95
80
100
90
95
85
100
100
95
95
85
90
80
95
100

0.8
0
0.1
0
0
0.5
0.7
0.6
0.6
0.5
0.6
0.7
0.7
0.3
0
0
0.8
1.9
1.3
0.8
0.5
0.5
0.7
0.6

95
40
50
35
35
50
70
75
75
80
90
90
80
55
40
45
60
70
70
65
55
65
70
75

0
0
0
0
0
0
0
0
0
0
0
0
10
10
0
10
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

1012
1011
1011
1011
1011
1012
1011
1011
1011
1011
1011
1012
1013
1014
1014
1015
1015
1015
1015
1015
1016
1016
1016
1017

0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0

11 52
11 52
11 51
11 52
11 51
10 50
10 50
10 49
10 51
10 49
9 49
9 49
9 48
10 49
9 48
9 47
8 47
8 47
9 47
9 47
9 48
9 47
9 48
9 48

5 41
4 39
3 38
3 38
4 39
4 39
4 39
3 37
4 39
4 39
3 38
3 37
3 37
3 38
3 37
2 36
4 39
3 38
4 39
3 38
3 38
3 38
3 38
3 38

37 68 8 19 42
39 72 8 20 45
40 74 8 21 46
37 69 8 19 43
38 71 8 20 44
35 65 8 18 40
33 62 8 17 39
38 71 8 20 44
40 74 8 21 46
42 78 9 22 48
37 69 8 19 43
40 75 9 21 47
37 68 8 19 42
37 69 8 19 43
34 63 8 18 39
31 57 7 16 35
32 59 7 16 37
33 62 8 17 39
33 62 8 17 39
33 61 7 17 38
32 59 7 16 37
31 58 7 16 36
31 58 7 16 36
29 54 7 15 34

6.1
6.2
6.3
6.3
6.2
6.1
6.1
6.2
6.3
6.5
6.6
6.5
6.4
6.2
5.9
5.8
5.6
5.6
5.5
5.4
5.3
5.2
5
4.9

Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Last updated 20min ago | Next update in 3h
Caption

Expert opinion

A northwesterly, very strong and variable flow prevails over the whole area.

For Cassy - Port de Lanton :
Warning strong gale offshore.

The reliability of the situation is assessed at 80%.

Very cloudy skies with short clear spells. Showers all day. In the evening, very cloudy skies to overcast.
Showers. W force 6 becoming WNW force 7 in the middle of the day then force 5. Gusts reaching 52 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from WNW. Excellent visibility.

Tides at Arcachon

66

Low tide 03h08 0.93m

High tide 09h32 3.89m

60

Low tide 15h36 1.02m

High tide 21h55 3.55m

www.shom.fr - © SHOM 2026

Consult the tides for January

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Fri

09

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

Sat

10

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

Sun

11

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

Mon

12

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

Tue

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

Wed

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Thu

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- 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

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