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

Tue

19

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Wed

20

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Thu

21

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Fri

22

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Sat

23

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Sun

24

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Mon

25

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Tue

26

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Wed

27

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Thu

28

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

Fri

29

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Sat

30

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Sun

31

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

Mon

01

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Tue

02

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BULLETIN

Reliability 85%

No gale warning.

No weather risk at the spot

Tuesday 19 may

METEO CONSULT Run : 19/05 00Z Mesh : 1km Updated, 1h ago Update in 5h

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

legend.title.wave_height

Total sea (m)

legend.title.wind_sea

Wind (m)

legend.title.swell

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)

15

10

5

0

30

20

10

0

10

5

0

20

15

10

5

0

5

0

0.5

0

3

0

30

25

20

15

10

90

80

70

60

50

                                    
                                                                         Wed 20
                                                            
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                        Run : 19/05 00Z
                Mesh : 1km
                Updated, 1h ago
                Update in 5h

Wed 20

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

250° W WSW
255° W WSW
255° W WSW
270° W W
265° W W
250° W WSW
250° W WSW
255° W WSW
260° W W
265° W W
270° W W
255° W WSW
245° SW WSW
240° SW WSW
235° SW SW
255° W WSW
260° W W
265° W W
265° W W
275° W W
275° W W
285° W WNW
300° NW WNW
320° NW NW

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

13 25 7 16 4
12 23 6 14 4
11 21 6 13 4
11 21 6 13 4
9 16 4 10 3
8 14 4 9 3
7 13 4 8 3
7 13 4 8 3
7 13 4 8 3
7 13 4 8 3
6 12 3 7 3
6 12 3 7 3
6 12 3 7 3
6 11 3 7 2
6 12 3 7 3
7 13 4 8 3
8 14 4 9 3
8 15 4 9 3
9 16 4 10 3
9 17 5 11 3
9 17 5 11 3
10 18 5 11 3
9 17 5 11 3
10 18 5 11 3

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
0.1
0.1
0.2
0.2
0.2
0.2
0.3

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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
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

0.1
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

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
10
10
10
10
10
10
10
10

90
90
90
90
90
70
80
80
80
80
80
80
80
80
90
90
90
80
150
170
210
110
110
110

3.1
3.9
4.3
4.2
3.7
2.8
1.9
1.0
0.5
0.4
0.8
1.6
2.5
3.3
3.9
4.1
3.8
3.1
2.3
1.4
0.9
0.7
0.9
1.6

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 63
17 63
18 64
18 64
18 64

0
5
35
45
50
40
50
70
60
50
70
55
65
75
60
65
40
45
50
65
55
50
35
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
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

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

1020
1020
1021
1021
1022
1023
1023
1024
1024
1024
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1026
1026
1025

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

21 70
20 68
19 66
17 63
16 60
16 60
15 60
15 59
15 59
15 59
15 59
15 59
15 58
15 58
15 60
16 62
17 63
18 65
19 66
20 67
20 68
21 69
21 70
21 70

25 77
23 73
17 63
16 60
14 58
14 57
14 57
14 56
14 56
13 56
13 56
14 56
13 56
14 56
15 59
17 62
20 67
22 71
23 74
24 76
25 78
28 83
29 84
28 83

11 20 4 6 12
10 19 3 5 12
10 18 3 5 11
8 15 3 4 9
8 15 3 4 9
8 15 3 4 9
8 15 3 4 9
9 16 3 4 10
9 16 3 4 10
8 15 3 4 9
9 16 3 4 10
9 16 3 4 10
9 16 3 4 10
9 16 3 4 10
8 15 3 4 9
7 13 3 4 8
6 11 2 3 7
4 8 2 2 5
3 6 2 2 4
2 3 1 1 2
1 2 1 1 1
2 4 1 1 2
4 7 2 2 4
6 12 3 3 7

1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.7
1.7
1.7
1.8
1.8
1.9
1.9
1.9
2
2
2.1
2.1
2.2
2.3
2.3
2.3

Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Caption Glossary

Expert opinion

High 1022 hPa centered on the North-West of Spain moving at 15 knots to the East and gaining strength to 1025 hPa to be centered on the North-East of Spain.

For Cassy - Port de Lanton :
No gale warning.

We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.

In the evening, relatively clear skies becoming changeable.
W wind force 3. Gusts reaching 13 knots in the evening. Smooth sea. Low, fairly long swell from WNW. Good visibility.

semaphore stations

Station Cap-Ferret located 17 km from Cassy - Port de Lanton

	WIND			WEATHER
Local time	Dir. (°)	Speed (nd)	Gust (nd)	Temp. (°C)	Pressure (hPa)	Visibility (M)
18h	260	8	16	22.7	-	0
17h	280	7	16	22.6	-	0
16h	300	10	32	22.2	-	0

observation.semaphores_link

Météo France - RADOME

observation.semaphore_link

Tides at Arcachon

95

Low tide 01h51 0.29m

High tide 08h02 4.28m

91

Low tide 14h09 0.53m

High tide 20h22 4.33m

www.shom.fr - © SHOM 2026 - Local times

Consult the tides for May

Go further

Tue

19

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

Wed

20

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

Thu

21

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

Fri

22

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

Sat

23

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

Sun

24

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

Mon

25

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

Tue

26

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

Wed

27

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

Thu

28

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

Fri

29

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

Sat

30

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

Sun

31

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

Mon

01

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

Tue

02

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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

semaphore stations

Tides at Arcachon

Go further