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 70%
Saturday 29 august Saturday 29 aug
METEO CONSULT Run : 29/08 00Z Mesh : 1km Updated, 2h ago Update in 41min

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
40
30
20
10
0
70
60
50
40
30
20
10
20
15
10
5
0
40
30
20
10
0
10
5
0
1
0.5
0
9
6
3
0
30
25
20
15
10
80
70
60
50
  • Sun 30
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Run : 29/08 00Z Mesh : 1km Updated, 2h ago Update in 41min
  • Sun 30
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  • 175° S S
  • 180° S S
  • 190° S S
  • 195° S SSW
  • 205° SW SSW
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  • 205° SW SSW
  • 205° SW SSW
  • 9 16 4 10 3
  • 11 20 6 12 4
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  • 16 30 8 19 5
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  • 13 24 7 15 4
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  • 10 19 5 12 3
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  • 9 16 4 10 3
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  • 8 14 4 9 3
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  • 17 31 9 19 5
  • 21 39 11 24 6
  • 25 47 13 29 6
  • 29 54 15 34 7
  • 31 57 16 35 7
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  • 32 59 16 37 7
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  • >35 >65 >19 >40 >8
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  • 0° N N
  • 0° N N
  • 5° N N
  • 5° N N
  • 355° N N
  • 355° N N
  • 295° NW WNW
  • 305° NW NW
  • 240° SW WSW
  • 70° E ENE
  • 85° E E
  • 20° N NNE
  • 15° N NNE
  • 0° N N
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  • 360° N N
  • 0° 0 0
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  • 5° N N
  • 310° NW NW
  • 310° NW NW
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  • 0
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  • 1
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Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast :
No gale warning.

The reliability of the situation is assessed at 70%.

Very cloudy with risk of thunderstorms in the morning, some sun but cloud building in the afternoon. Rain followed by showers in the morning, light showers dying away progressively in the afternoon. In the evening, clear periods developing.
Chance of light rain. S force 5 in the morning turning WSW in the middle of the day. Gusts reaching 34 knots in the middle of the day. Smooth to slight sea becoming slight in the evening. Low, short swell from N. Poor 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
180
21
28
17.3
1009
11
06h
190
17
21
16.9
1010
0
05h
190
14
20
16.8
1011
14
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

89
Low tide 03h20 1.73m
High tide 08h50 11.51m
91
Low tide 15h36 1.78m
High tide 21h05 11.91m
www.shom.fr - © SHOM 2026 - Local times
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