Weather anchorage Port Marie

Granville FRALon : -1°49’,713 W Lat : 48°52’,44 N Alt : 5m
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Weather Risk Briefing
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BULLETIN

Reliability 80%
Saturday 15 august Saturday 15 aug
METEO CONSULT Run : 15/08 00Z Mesh : 1km Updated, 2h ago Update in 1h

Wind

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

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
30
20
10
0
50
40
30
20
10
0
15
10
5
0
30
20
10
0
10
5
0
1
0.5
0
3
0
35
30
25
20
15
90
80
70
60
  • Sun 16
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Run : 15/08 00Z Mesh : 1km Updated, 2h ago Update in 1h
  • Sun 16
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  • 335° NW NNW
  • 340° N NNW
  • 330° NW NNW
  • 345° N NNW
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  • 345° N NNW
  • 340° N NNW
  • 335° NW NNW
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  • 335° NW NNW
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  • 340° N NNW
  • 340° N NNW
  • 345° N NNW
  • 345° N NNW
  • 350° N N
  • 350° N N
  • 350° N N
  • 345° N NNW
  • 345° N NNW
  • 350° N N
  • 0° N N
  • 25° NE NNE
  • 60° NE ENE
  • 8 15 4 9 3
  • 9 17 5 11 3
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  • 10 19 5 12 3
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  • 5 10 3 6 2
  • 4 8 2 5 2
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  • 12 23 6 14 4
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  • 15 27 8 17 4
  • 15 28 8 17 4
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  • 12 23 6 14 4
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  • 9 16 4 10 3
  • 0.4
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  • 0.2
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  • 0.3
  • 0.3
  • 0.4
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  • 0.5
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.5
  • 0.4
  • 0.3
  • 0.3
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 275° W W
  • 280° W W
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  • 270° W W
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  • 265° W W
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  • 270° W W
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  • 275° W W
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  • 280° W W
  • 285° W WNW
  • 290° W WNW
  • 285° W WNW
  • 280° W WNW
  • 280° W W
  • 280° W W
  • 300° NW WNW
  • 295° NW WNW
  • 0.4
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  • 45
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  • 35
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  • 5.9
  • 9.4
  • 12.2
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  • 12.6
  • 11.0
  • 8.8
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  • 12.0
  • 13.5
  • 13.1
  • 11.7
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  • 2.0
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  • 3.5
  • 10
  • >20
  • >20
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Forecasts established in local time
Caption   Glossary

Expert opinion

For Port Marie :
No gale warning.

We are 80% 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, sunny in the afternoon. No precipitation. In the evening, clear skies.
NNW force 4 in the morning becoming force 5 in the evening. Gusts reaching 23 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from W. Visibility reduced by mist becoming excellent in the middle of the day.

semaphore stations

Station Granville located 16 km from Port Marie
WIND
WEATHER
Local time Dir.
(°)
Speed
(nd)
Gust
(nd)
Temp.
(°C)
Pressure
(hPa)
Visibility
(M)
07h
300
18
21
-
-
0
06h
300
9
10
-
-
0
05h
280
5
16
-
-
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Iles Chausey (Grande-Ile)

101
Low tide 04h50 1.43m
High tide 09h59 13.2m
98
Low tide 17h04 1.71m
High tide 22h10 13.49m
© METEOCONSULT 2026 - Local times
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