Weather anchorage Mouillage de Saint-Cast

Saint-Cast-le-Guildo FRALon : -2°14’,724 W Lat : 48°38’,442 N Alt : 2m
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Weather Risk Briefing
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BULLETIN

Reliability 55%
Tuesday 22 september Tuesday 22 sep
METEO CONSULT Run : 12/09 12Z Mesh : 19km Updated, 10h ago Update imminent

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
20
15
10
5
0
30
20
10
0
10
5
0
20
15
10
5
0
10
5
0
1
0.5
0
3
0
25
20
15
10
80
70
60
50
  • Tue 22
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  • 19h
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  • 23h
Run : 12/09 12Z Mesh : 19km Updated, 10h ago Update imminent
  • Tue 22
  • 00h
  • 01h
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  • 5° N N
  • 5° N N
  • 10° N N
  • 5° N N
  • 0° N N
  • 15° N NNE
  • 10° N NNE
  • 10° N N
  • 25° NE NNE
  • 25° NE NNE
  • 25° NE NNE
  • 25° NE NNE
  • 25° NE NNE
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 15° N NNE
  • 15° N NNE
  • 4 8 2 5 2
  • 3 6 2 4 2
  • 3 5 1 3 1
  • 2 4 1 2 1
  • 2 4 1 2 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 6 12 3 7 3
  • 6 12 3 7 3
  • 6 12 3 7 3
  • 8 14 4 9 3
  • 8 14 4 9 3
  • 8 14 4 9 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 6 11 3 7 2
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  • 14 26 7 16 4
  • 14 26 7 16 4
  • 13 25 7 16 4
  • 13 24 7 15 4
  • 12 23 6 14 4
  • 11 21 6 13 4
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 11 21 6 13 4
  • 11 21 6 13 4
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  • 13 24 7 15 4
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  • 16 29 8 18 5
  • 16 29 8 18 5
  • 16 29 8 18 5
  • 13 25 7 16 4
  • 13 25 7 16 4
  • 0.3
  • 0.3
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  • 0.7
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  • 0.5
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  • 0
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  • 0
  • 0.6
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  • 0.4
  • 0.3
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  • 0.2
  • 0.1
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
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  • 315° NW NW
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  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 0.3
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  • 0.3
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  • 9
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  • 13
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  • 270
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  • 5.3
  • 5.9
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  • >20
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  • 15
  • 15
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  • 10
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  • 10
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  • 5
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  • 2
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  • 14 58
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  • 17 63
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  • 17 62
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  • 18 64
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  • 24 75
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  • 21 69
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  • 17 63
  • 17 63
  • 17 63
  • 13 55
  • 13 55
Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast :
No gale warning.


For the night from Monday to Tuesday N force 2 becoming force 1 in the middle of the night then NNE. Gusts reaching 14 knots in the early part of the night.

Smooth sea becoming slight in the middle of the night then smooth to slight. Low, fairly long swell from WNW. Excellent visibility becoming good in the middle of the night then good. Daytime of Tuesday 22 september : The weather will be good.

Sunny despite some cloudy spells but no rain. In the evening, light cloudy spells.
NNE force 2 in the morning becoming force 3 in the middle of the day. Gusts reaching 16 knots in the evening. Smooth to slight sea. Low, long swell from NW. Good visibility becoming excellent in the middle of the day.

semaphore stations

Station Dinard located 14 km from Mouillage de Saint-Cast
WIND
WEATHER
Local time Dir.
(°)
Speed
(nd)
Gust
(nd)
Temp.
(°C)
Pressure
(hPa)
Visibility
(M)
07h
200
4
4
13.1
1025
1
06h
190
2
5
13.7
1026
4
05h
190
3
4
13.7
1026
1
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

35
High tide 04h59 8.35m
Low tide 11h35 4.88m
42
High tide 17h26 8.9m
www.shom.fr - © SHOM 2026 - Local times
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