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

Sat

31

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Wed

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Thu

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Fri

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Sat

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Sun

08

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Mon

09

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Tue

10

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Wed

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Thu

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Sat

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BULLETIN

(* established in local time)

Reliability 80%

Wind alert - Warning moderate gale offshore.

Saturday 31 jan

METEO CONSULT Run : 31/01 00Z Mesh : 1km Updated, 2h ago Update in 4h

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

Total sea (m)

Wind (m)

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Clouds:

Cloud cover (%)

Precipitation:

Amount of precipitation (mm)

Type of precipitation

Risks:

Precipitation risk (%)

Storm risk. (%)

Brightness:

Visibility (km)

Pressure (hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

Offshore

Offshore wind

Offshore sea (m)

40

30

20

10

0

70

60

50

40

30

20

10

20

15

10

5

0

40

30

20

10

0

10

5

0

1

0.5

0

3

0

15

10

5

55

50

45

40

                                    
                                                                         Sun 1
                                                            
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                        Run : 31/01 00Z
                Mesh : 1km
                Updated, 2h ago
                Update in 4h

Sun 1

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

265° W W
260° W W
280° W W
290° W WNW
295° NW WNW
290° W WNW
295° NW WNW
305° NW WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
285° W WNW
280° W W
275° W W
265° W W
255° W WSW
255° W WSW
250° W WSW
215° SW SW
240° SW WSW
230° SW SW
230° SW SW
225° SW SW

12 22 6 14 4
9 17 5 11 3
13 25 7 16 4
16 29 8 18 5
15 28 8 17 4
15 27 8 17 4
13 25 7 16 4
11 20 6 12 4
12 22 6 14 4
12 23 6 14 4
13 25 7 16 4
11 20 6 12 4
10 19 5 12 3
10 18 5 11 3
9 16 4 10 3
8 15 4 9 3
7 13 4 8 3
8 15 4 9 3
8 15 4 9 3
5 10 3 6 2
10 18 5 11 3
11 21 6 13 4
11 21 6 13 4
11 20 6 12 4

25 46 13 29 6
24 45 13 28 6
29 54 15 34 7
31 57 16 35 7
32 60 17 37 7
33 62 17 39 8
29 54 15 34 7
25 47 13 29 6
26 49 14 30 6
28 52 14 32 7
27 50 14 31 7
25 46 13 29 6
22 41 11 25 6
21 38 11 24 5
17 32 9 20 5
19 35 10 22 5
15 27 8 17 4
16 29 8 18 5
16 29 8 18 5
15 27 8 17 4
21 39 11 24 6
22 41 11 25 6
23 43 12 27 6
23 43 12 27 6

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

0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0
0
0.1
0.1
0.2

290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
285° W WNW

0.4
0.4
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4

13
13
12
12
12
12
12
12
12
12
12
12
12
12
12
12
13
12
12
13
13
12
12
11

180
180
170
150
140
120
120
130
140
140
140
170
200
220
230
240
240
240
250
250
250
240
220
140

0.8
1.3
2.1
2.9
3.6
4.0
4.0
3.6
2.9
2.0
1.3
0.8
0.8
1.2
1.9
2.8
3.6
4.1
4.3
4.0
3.4
2.4
1.5
0.8

12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53

25
100
65
55
65
80
75
90
90
90
100
100
100
75
100
100
100
100
100
100
100
100
100
100

0.4
0.5
0.6
0.1
0.1
0.1
0.8
0.8
0.8
0.6
0.2
0
0
0
0
0
0
0
0.7
0.7
1.8
1.8
0.6
0.6

-

100
85
75
55
50
50
65
65
65
55
55
40
30
20
20
0
25
45
75
90
90
90
90
75

10
10
10
10
10
10
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
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
5
>20
>20
>20
>20

1003
1004
1004
1005
1006
1007
1008
1009
1010
1010
1011
1012
1012
1012
1012
1012
1012
1011
1011
1010
1010
1010
1009
1009

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

10 50
11 51
11 52
11 53
12 53
11 53
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 51
10 51
11 51
11 51
11 51
11 52

10 49
8 47
9 49
9 48
9 47
8 47
8 46
7 45
7 45
7 44
7 44
7 45
8 46
8 46
8 47
8 47
8 47
8 46
8 46
8 47
7 45
7 44
7 44
7 45

23 42 6 12 26
22 41 6 11 25
25 46 6 13 29
25 47 6 13 29
25 46 6 13 29
25 46 6 13 29
23 43 6 12 27
23 43 6 12 27
24 45 6 13 28
25 46 6 13 29
24 44 6 12 27
21 38 5 11 24
19 36 5 10 22
18 34 5 9 21
16 29 5 8 18
17 32 5 9 20
16 29 5 8 18
16 30 5 8 19
16 29 5 8 18
17 32 5 9 20
21 38 5 11 24
23 43 6 12 27
24 44 6 12 27
22 41 6 11 25

5.1
5.1
5.2
5.2
5.4
5.4
5.5
5.5
5.5
5.4
5.4
5.2
5.1
4.9
4.8
4.6
4.5
4.3
4.2
4.2
4.1
4
4
3.9

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

Low 981 hPa centered on Wales rising in a stationary position.

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

The reliability of the situation is assessed at 80%.

Predominantly sunny in the morning, very cloudy in the afternoon. Light showers all day. In the evening, very cloudy skies becoming totally overcast.
Showers. W force 4 in the morning temporarily WNW force 5 in the middle of the day. Gusts reaching 33 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from WNW. Excellent visibility.

Tides at Arcachon

72

High tide 04h01 4.07m

Low tide 10h13 0.71m

78

High tide 16h33 4.03m

Low tide 22h36 0.74m

www.shom.fr - © SHOM 2026

Consult the tides for January

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Sat

31

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

Sun

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

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

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Thu

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07

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Sun

08

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Mon

09

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

Tue

10

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Wed

11

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Thu

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Fri

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

Sat

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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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