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

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

Weather Risk Briefing

Sat

15

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

Sun

16

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

Mon

17

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

Tue

18

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

Wed

19

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

Thu

20

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Fri

21

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

Sat

22

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

Sun

23

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

Mon

24

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

Tue

25

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

Wed

26

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

Thu

27

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

Fri

28

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Sat

29

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

BULLETIN

Reliability 75%

No gale warning.

Marine wind risk

Saturday 15 aug

METEO CONSULT Run : 14/08 18Z Mesh : 1km Updated, 4h ago Update imminent

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.swell

Swell height (m)

Weather

Rain (mm) (mm)

Precipitation:

Amount of precipitation (mm)

Type of precipitation

Risks:

Precipitation risk (%)

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

15

10

5

30

25

20

15

10

5

0

20

15

10

5

0

0.5

0

3

0

30

25

20

80

75

70

                    45
                    04h45
                
                    50
                    04h50
                
                    55
                    04h55
                
                    05h00
                    05h00
                
                    05
                    05h05
                
                    10
                    05h10
                
                    15
                    05h15
                
                    20
                    05h20
                
                    25
                    05h25
                
                    30
                    05h30
                
                    35
                    05h35
                
                    40
                    05h40
                
                    45
                    05h45
                
                    50
                    05h50
                
                    55
                    05h55
                
                    06h00
                    06h00
                
                    05
                    06h05
                
                    10
                    06h10
                
                    15
                    06h15
                
                    20
                    06h20
                
                    25
                    06h25
                
                    30
                    06h30
                
                    35
                    06h35
                
                    40
                    06h40
                
                        Run : 14/08 18Z
                Mesh : 1km
                Updated, 4h ago
                Update imminent

45 04h45
50 04h50
55 04h55
05h00 05h00
05 05h05
10 05h10
15 05h15
20 05h20
25 05h25
30 05h30
35 05h35
40 05h40
45 05h45
50 05h50
55 05h55
06h00 06h00
05 06h05
10 06h10
15 06h15
20 06h20
25 06h25
30 06h30
35 06h35
40 06h40

255° W WSW
255° W WSW
255° W WSW
250° W WSW
250° W WSW
250° W WSW
250° W WSW
250° W WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
235° SW WSW

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 12 3 7 3
6 12 3 7 3
6 12 3 7 3
6 12 3 7 3
6 12 3 7 3
6 12 3 7 3
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
5 10 3 6 2
5 10 3 6 2

13 25 7 16 4
13 24 7 15 4
13 24 7 15 4
13 24 7 15 4
12 23 6 14 4
12 23 6 14 4
12 23 6 14 4
12 23 6 14 4
12 23 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
11 21 6 13 4
11 21 6 13 4
11 21 6 13 4
11 21 6 13 4
11 21 6 13 4
11 21 6 13 4
11 20 6 12 4
11 20 6 12 4
11 20 6 12 4
11 20 6 12 4

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
0.1
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
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

23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73
23 73

24 76
24 76
24 76
24 76
24 76
24 76
24 76
24 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 76
25 77
25 77

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

Expert opinion

Bulletin météo de la zone côtière de Montalivet à Biscarrosse

Weather Risk Briefing

A northerly and variable flow prevails over the whole area.

For Cassy - Port de Lanton :
No gale warning.

We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.

Skies clearing but remaining hazy during the morning, increasing sunny spells in the afternoon. Risk of some spots of rain in the morning, no precipitation in the afternoon. In the evening, skies becoming partly cloudy from the early hours.
Risk of showers in the early hours. SW force 3 in the morning turning W in the middle of the day. Gusts reaching 15 knots in the middle of the day. Smooth sea. Low, short swell from WNW. Poor visibility becoming excellent in the middle of the day then good.

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)
04h	250	14	25	23.3	-	0
03h	260	12	17	23.4	-	0
02h	260	10	18	24	-	7

Nearby signal stations

Météo France - RADOME

Signal station weather

Tides at Arcachon

101

Low tide 02h03 0.25m

High tide 08h07 4.27m

98

Low tide 14h15 0.38m

High tide 20h25 4.45m

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

Consult the tides for August

Go further

Sat

15

-

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

Sun

16

-

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

Mon

17

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

Tue

18

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

Wed

19

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

Thu

20

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

Fri

21

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

Sat

22

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

Sun

23

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

Mon

24

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

Tue

25

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

Wed

26

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

Thu

27

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

Fri

28

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

Sat

29

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

Weather port Cassy - Port de Lanton

BULLETIN

Wind

Waves

Weather

Temperature

Expert opinion

semaphore stations

Tides at Arcachon

Go further