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

05

-

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

Thu

06

-

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

Fri

07

-

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

Sat

08

-

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

Sun

09

-

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

Mon

10

-

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

Tue

11

-

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

Wed

12

-

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

Thu

13

-

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

Fri

14

-

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

Sat

15

-

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

Sun

16

-

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

Mon

17

-

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

Tue

18

-

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

Wed

19

-

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

BULLETIN

(established in local time)

Reliability 90%

Wind alert - Warning moderate gale offshore.

Wednesday 5 november

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)

30

20

10

0

50

40

30

20

10

0

15

10

5

0

30

20

10

0

10

5

0

0.5

0

3

0

25

20

15

10

70

65

60

55

50

Thu 6

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

125° SE SE
130° SE SE
130° SE SE
135° SE SE
130° SE SE
130° SE SE
135° SE SE
120° SE ESE
120° SE ESE
115° SE ESE
125° SE SE
125° SE SE
130° SE SE
120° SE ESE
125° SE SE
145° SE SE
160° S SSE
145° SE SE
145° SE SE
140° SE SE
135° SE SE
135° SE SE
180° S S
195° S SSW

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

17 32 9 20 5
17 32 9 20 5
17 32 9 20 5
22 40 11 25 6
23 42 12 26 6
24 45 13 28 6
23 42 12 26 6
24 45 13 28 6
24 45 13 28 6
25 46 13 29 6
23 43 12 27 6
19 36 10 22 5
21 38 11 24 5
17 31 9 19 5
17 31 9 19 5
13 25 7 16 4
18 34 9 21 5
17 32 9 20 5
15 27 8 17 4
11 20 6 12 4
10 19 5 12 3
9 17 5 11 3
10 19 5 12 3
11 20 6 12 4

0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
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
0.2
0.2

0.6
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.5

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
0
0
0
0
0
0
0
0
0
0

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
290° W WNW

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

14
13
14
14
14
14
14
14
14
14
13
14
13
13
13
13
14
14
13
13
13
13
13
13

100
120
130
140
130
120
120
90
80
90
120
130
150
160
170
180
180
180
170
170
140
170
170
170

0.7
1.5
2.5
3.5
4.3
4.6
4.4
3.8
2.8
1.7
0.9
0.4
0.5
1.1
2.1
3.1
4.0
4.5
4.5
4.0
3.1
2.0
1.1
0.5

17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62

90
95
65
100
100
100
85
90
85
60
90
75
90
95
90
100
100
100
80
40
20
10
10
15

0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.7
0
0
0
0
0
0

-
-
-
-
-
-
-
-
-
-
-
-
-

90
100
0
0
0
25
25
30
0
0
0
0
0
25
25
40
55
65
40
0
0
0
0
0

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

1010
1009
1008
1007
1007
1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1007
1007
1007

1
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2

17 63
19 65
20 68
20 68
20 67
19 67
18 65
18 64
18 64
17 63
17 62
17 62
16 61
16 61
16 60
16 60
16 60
15 58
14 57
14 57
13 56
14 57
16 60
17 63

15 58
15 60
18 64
20 68
16 61
16 60
15 58
14 57
13 56
13 55
13 56
13 56
13 56
13 56
14 57
14 57
13 56
12 54
11 52
12 53
11 52
12 54
15 60
18 64

22 41 6 11 25
21 38 5 11 24
20 37 5 10 23
22 41 6 11 25
21 38 5 11 24
22 40 6 11 25
23 43 6 12 27
23 43 6 12 27
21 38 5 11 24
20 37 5 10 23
19 36 5 10 22
18 34 5 9 21
17 32 5 9 20
17 32 5 9 20
16 30 5 8 19
17 32 5 9 20
19 35 5 10 22
20 37 5 10 23
19 36 5 10 22
17 32 5 9 20
16 29 5 8 18
18 34 5 9 21
17 31 5 9 19
16 29 5 8 18

2.6
2.6
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.4
2.4
2.3
2.3
2.3
2.3
2.3
2.4
2.5
2.5
2.6
2.6
2.6
2.6

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, moderate and mostly variable flow prevails over the North-West of the basin. Over the East, it is southerly, strong and variable. Over the South-West, it is westerly, very strong and mostly variable.

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

We are 90% sure of the situation, because the atmosphere might not be as stable as forecast.

Very cloudy skies becoming totally overcast during the afternoon. No precipitation in the morning, light showers dying away progressively in the afternoon. In the evening, very cloudy.
Possibility of showers SE force 3 becoming force 4 in the middle of the day then ESE. Gusts reaching 25 knots in the evening. Smooth sea. Low, long swell from WNW. Excellent visibility.

Tides at Arcachon

101

High tide 04h44 4.47m

Low tide 10h57 0.43m

104

High tide 17h06 4.65m

Low tide 23h21 0.4m

www.shom.fr - © SHOM 2025

Consult the tides for November

Wed

05

-

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

Thu

06

-

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

Fri

07

-

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

Sat

08

-

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

Sun

09

-

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

Mon

10

-

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

Tue

11

-

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

Wed

12

-

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

Thu

13

-

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

Fri

14

-

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

Sat

15

-

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

Sun

16

-

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

Mon

17

-

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

Tue

18

-

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

Wed

19

-

- 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