Weather port Cassy - Port de Lanton

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

Reliability 70%
Saturday 15 august Saturday 15 aug
METEO CONSULT Run : 15/08 00Z Mesh : 1km Updated, 48min ago Update in 2h

Wind

Average winds Average winds
Gusts
10m above ground level:
Direction
Speed
Gusts
Under storms

Waves

Total sea (m) (m)
Swell height 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 Amount of precipitation (mm)
Type of precipitation Type of precipitation
Risks:
Precipitation risk Precipitation risk (%)
Storm risk. (%)
Brightness:
Visibility (km)
Pressure (hPa)
UV

Temperature

Air temp Air temp
Perceived temp
Air temp
Perceived temp

Offshore

Offshore wind
Offshore sea (m)
20
15
10
5
0
40
30
20
10
0
10
5
0
20
15
10
5
0
10
5
0
0.5
0
3
0
35
30
25
20
100
90
80
70
  • Sun 16
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
Run : 15/08 00Z Mesh : 1km Updated, 48min ago Update in 2h
  • Sun 16
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
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  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 265° W W
  • 255° W WSW
  • 225° SW SW
  • 245° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 250° W WSW
  • 260° W W
  • 260° W W
  • 260° W W
  • 265° W W
  • 270° W W
  • 270° W W
  • 275° W W
  • 280° W W
  • 265° W W
  • 275° W W
  • 270° W W
  • 285° W WNW
  • 275° W W
  • 190° S S
  • 225° SW SW
  • 235° SW SW
  • 250° W WSW
  • 4 8 2 5 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 6 11 3 7 2
  • 6 12 3 7 3
  • 6 12 3 7 3
  • 6 12 3 7 3
  • 9 16 4 10 3
  • 8 15 4 9 3
  • 8 14 4 9 3
  • 8 15 4 9 3
  • 7 13 4 8 3
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 4 8 2 5 2
  • 2 4 1 2 1
  • 1 2 1 1 1
  • 3 5 1 3 1
  • 5 9 3 6 2
  • 3 5 1 3 1
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 9 17 5 11 3
  • 12 23 6 14 4
  • 12 22 6 14 4
  • 12 23 6 14 4
  • 13 24 7 15 4
  • 13 25 7 16 4
  • 15 28 8 17 4
  • 17 31 9 19 5
  • 16 30 8 19 5
  • 15 28 8 17 4
  • 15 28 8 17 4
  • 15 28 8 17 4
  • 13 24 7 15 4
  • 11 21 6 13 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 9 17 5 11 3
  • 12 23 6 14 4
  • 9 16 4 10 3
  • 10 19 5 12 3
  • - - - - -
  • - - - - -
  • - - - - -
  • - - - - -
  • - - - - -
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  • - - - - -
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  • - - - - -
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  • >25 >50 >14 >30 >7
  • >25 >50 >14 >30 >7
  • >25 >50 >14 >30 >7
  • - - - - -
  • - - - - -
  • 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
  • 0.1
  • 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
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 300° 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
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  • 0.1
  • 0.1
  • 0.1
  • 7
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  • 60
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  • 40
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  • 35
  • 25
  • 10
  • 15
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  • 30
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  • 40
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  • 45
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  • 70
  • 3.2
  • 3.9
  • 4.3
  • 4.1
  • 3.4
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  • 0.8
  • 0.4
  • 0.5
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  • 3.9
  • 4.4
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  • 3.8
  • 3.0
  • 1.9
  • 1.1
  • 0.5
  • 0.4
  • 0.8
  • 1.6
  • 26 79
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  • 5
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  • 45
  • 70
  • 40
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  • 35
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  • 10
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  • 10
  • 10
  • 15
  • 20
  • 75
  • 70
  • 65
  • 60
  • 55
  • 65
  • 60
  • 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
  • 0
  • 0
  • 0
  • 20
  • 20
  • 20
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 40
  • 40
  • 40
  • 20
  • 20
  • 10
  • 0
  • 0
  • 20
  • 20
  • 20
  • 0
  • 0
  • 0
  • 15
  • 15
  • 5
  • 0
  • 0
  • 0
  • 0
  • 0
  • 10
  • 10
  • 40
  • 40
  • 40
  • 20
  • 20
  • 4.5
  • 10
  • 10
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 15
  • 15
  • 15
  • 10
  • 5
  • 5
  • 5
  • 5
  • 1015
  • 1016
  • 1016
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  • 1015
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  • 1015
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  • 1016
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  • 0
  • 0
  • 0
  • 1
  • 1
  • 3
  • 4
  • 5
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  • 6
  • 4
  • 3
  • 2
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 23 73
  • 23 73
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  • 26 79
  • 25 77
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  • 26 78
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  • 25 76
  • 9 16 3 4 10
  • 9 16 3 4 10
  • 9 17 3 5 11
  • 10 18 3 5 11
  • 8 14 3 4 9
  • 9 16 3 4 10
  • 7 13 3 4 8
  • 6 11 2 3 7
  • 5 10 2 3 6
  • 6 12 3 3 7
  • 6 12 3 3 7
  • 6 12 3 3 7
  • 6 12 3 3 7
  • 7 13 3 4 8
  • 6 11 2 3 7
  • 4 7 2 2 4
  • 6 12 3 3 7
  • 7 13 3 4 8
  • 8 15 3 4 9
  • 5 10 2 3 6
  • 6 11 2 3 7
  • 4 7 2 2 4
  • 8 14 3 4 9
  • 8 15 3 4 9
  • 1
  • 1
  • 1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1
  • 1
  • 1
  • 1
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Caption   Glossary

Expert opinion

A northerly and variable flow prevails over the whole area.

For Cassy - Port de Lanton :
No gale warning.

We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.

Sunny spells with possibility of mist forming in the morning, changeable skies becoming relatively cloud-free in the afternoon. The risk of seeing rain will remain low. In the evening, skies becoming partly cloudy from the early hours.
No precipitation. WSW force 2 in the morning becoming W force 3 in the middle of the day. Gusts reaching 17 knots in the middle of the day. Smooth sea. Low, short swell from WNW. Visibility reduced by mist 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)
06h
240
14
19
23.2
-
0
05h
190
8
17
22.9
-
0
04h
250
14
25
23.3
-
0
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

Go further

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