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

Sat

10

-

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

Sun

11

-

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

Mon

12

-

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

Tue

13

-

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

Wed

14

-

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

Thu

15

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

Fri

16

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

Sat

17

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

Sun

18

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

Mon

19

-

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

Tue

20

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

Wed

21

-

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

Thu

22

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

Fri

23

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

Sat

24

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

BULLETIN

(established in local time)

Reliability 85%

No gale warning.

Saturday 10 may

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

30

20

10

0

10

5

0

20

15

10

5

0

10

5

0

0.5

0

9

6

3

0

30

25

20

15

10

90

80

70

60

50

Sun 11

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

165° S SSE
140° SE SE
95° E E
105° E ESE
105° E ESE
125° SE SE
110° E ESE
115° SE ESE
125° SE ESE
130° SE SE
145° SE SE
165° S SSE
170° S S
190° S SSW
115° SE ESE
245° SW WSW
140° SE SE
25° NE NNE
70° E ENE
225° SW SW
90° E E
95° E E
115° SE ESE
110° E ESE

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

8 15 4 9 3
9 17 5 11 3
8 14 4 9 3
11 20 6 12 4
12 23 6 14 4
11 20 6 12 4
11 21 6 13 4
12 22 6 14 4
12 23 6 14 4
12 22 6 14 4
12 22 6 14 4
11 21 6 13 4
13 24 7 15 4
12 23 6 14 4
13 25 7 16 4
15 27 8 17 4
16 29 8 18 5
13 24 7 15 4
11 20 6 12 4
12 23 6 14 4
13 25 7 16 4
12 23 6 14 4
13 24 7 15 4
10 19 5 12 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
0.1
0.1
0.1
0.1
0.1

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

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
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
295° NW WNW
295° NW WNW
295° NW WNW
295° 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

9
9
10
10
10
11
11
11
11
11
10
10
10
10
11
11
11
11
11
11
11
11
11
11

80
90
80
110
110
110
90
90
90
80
80
80
100
110
90
120
120
120
100
90
90
90
110
110

1.8
2.5
3.2
3.6
3.8
3.6
3.1
2.3
1.6
1.0
0.8
1.0
1.5
2.2
3.0
3.6
3.9
3.8
3.3
2.6
1.8
1.2
0.8
0.9

15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 60
16 60
16 60
16 60
16 61
16 61
16 61
16 61
16 61
16 61
16 61

90
95
75
75
70
45
50
50
55
35
15
25
45
95
90
100
100
100
90
100
100
100
100
100

4.5
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0.7
2.4
3.4
2.1
0.9
0.9
3.2
3.2
1.4
0

-
-
-
-
-
-
-
-
-

100
65
25
0
0
0
0
0
0
0
0
0
20
35
50
70
85
85
80
80
75
70
60
45

15
15
10
15
5
5
5
5
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
10
10
5
5

1011
1011
1011
1011
1010
1010
1011
1011
1011
1011
1011
1011
1010
1010
1009
1009
1009
1008
1008
1009
1009
1009
1009
1009

0
0
0
0
0
0
0
0
1
2
4
5
6
3
4
3
2
1
1
0
0
0
0
0

14 57
14 57
14 57
14 56
13 56
13 55
13 55
13 56
15 58
17 62
19 65
20 68
21 69
22 71
21 70
19 66
17 62
17 62
17 62
17 62
15 60
15 59
15 58
14 58

13 55
12 54
12 54
12 53
11 52
11 52
11 51
11 53
14 56
17 63
21 70
27 80
27 81
27 80
27 80
18 65
17 62
16 62
16 60
15 59
14 58
13 55
13 55
13 55

5 10 2 3 6
6 11 2 3 7
5 10 2 3 6
6 12 3 3 7
9 17 3 5 11
9 17 3 5 11
11 21 4 6 13
13 25 4 7 16
13 25 4 7 16
12 22 4 6 14
10 19 3 5 12
8 14 3 4 9
6 11 2 3 7
4 8 2 2 5
1 2 1 1 1
2 4 1 1 2
6 12 3 3 7
9 16 3 4 10
6 11 2 3 7
8 14 3 4 9
10 19 3 5 12
12 22 4 6 14
8 15 3 4 9
7 13 3 4 8

0.7
0.7
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.9
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 44min ago | Next update in 3h
Caption

Expert opinion

A northeasterly and moderate flow prevails over the whole area.

For Cassy - Port de Lanton :
No gale warning.

We are 85% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.

Cloud and sun in the morning, skies clouding over with storms forming in the afternoon. No precipitation in the morning, heavy showers in the afternoon. In the evening, overcast skies with risk of thundery outbreaks.
Heavy showers. SE force 3 becoming SSE force 2 in the middle of the day then E. Gusts reaching 16 knots in the middle of the day. Rippled sea. Low, fairly long swell from WNW. Poor visibility becoming excellent in the middle of the day then poor.

Tides at Arcachon

68

High tide 05h01 3.83m

Low tide 11h03 0.81m

71

High tide 17h17 3.88m

Low tide 23h19 0.81m

www.shom.fr - © SHOM 2025

Consult the tides for May

Sat

10

-

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

Sun

11

-

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

Mon

12

-

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

Tue

13

-

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

Wed

14

-

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

Thu

15

-

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

Fri

16

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

Sat

17

-

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

Sun

18

-

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

Mon

19

-

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

Tue

20

-

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

Wed

21

-

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

Thu

22

-

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

Fri

23

-

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

Sat

24

-

- 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