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 60%
Tuesday 15 september Tuesday 15 sep
METEO CONSULT Run : 9/09 00Z Mesh : 19km Updated, 4h ago Update in 2h

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
40
30
20
10
0
10
5
0
30
20
10
0
10
5
0
1
0.5
0
3
0
30
25
20
15
10
90
80
70
60
50
  • Tue 15
  • 00h
  • 01h
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  • 19h
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  • 23h
Run : 9/09 00Z Mesh : 19km Updated, 4h ago Update in 2h
  • Tue 15
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
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  • 19h
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  • 5° N N
  • 295° NW WNW
  • 230° SW SW
  • 240° SW WSW
  • 240° SW WSW
  • 245° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 250° W WSW
  • 260° W W
  • 265° W W
  • 285° W WNW
  • 300° NW WNW
  • 310° NW NW
  • 315° NW NW
  • 325° NW NW
  • 330° NW NNW
  • 325° NW NW
  • 325° NW NW
  • 325° NW NW
  • 320° NW NW
  • 320° NW NW
  • 315° NW NW
  • 1 1 0 1 1
  • 0 0 0 0 0
  • 1 1 0 1 1
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 2 3 1 2 1
  • 2 4 1 2 1
  • 3 5 1 3 1
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 4 7 2 4 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 6 11 3 7 2
  • 7 13 4 8 3
  • 8 15 4 9 3
  • 9 17 5 11 3
  • 10 19 5 12 3
  • 10 18 5 11 3
  • 9 17 5 11 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 8 15 4 9 3
  • 8 14 4 9 3
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 6 12 3 7 3
  • 7 13 4 8 3
  • 8 15 4 9 3
  • 9 16 4 10 3
  • 11 21 6 13 4
  • 12 22 6 14 4
  • 13 24 7 15 4
  • 13 25 7 16 4
  • 14 26 7 16 4
  • 15 27 8 17 4
  • 16 29 8 18 5
  • 16 30 8 19 5
  • 17 31 9 19 5
  • 17 31 9 19 5
  • 17 32 9 20 5
  • 17 32 9 20 5
  • 16 29 8 18 5
  • 15 27 8 17 4
  • 14 26 7 16 4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
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  • 0.5
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  • 0.6
  • 0.6
  • 0.7
  • 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
  • 0.2
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.5
  • 0.5
  • 0.6
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 290° W WNW
  • 290° W WNW
  • 290° W WNW
  • 290° W WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
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  • 295° 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
  • 0.3
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  • 0.2
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  • 0.3
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  • 0.2
  • 0.2
  • 0.1
  • 0.1
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.3
  • 8
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  • 8
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  • 110
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  • 110
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  • 10.2
  • 8.1
  • 5.8
  • 3.7
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  • 7.6
  • 10.1
  • 11.5
  • 11.4
  • 10.3
  • 8.5
  • 6.3
  • 4.2
  • 2.7
  • 2.0
  • 2.6
  • 4.5
  • 7.1
  • 9.6
  • 11.1
  • 11.3
  • 20 68
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  • 0.1
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  • 0
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  • -
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  • 0
  • 4
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 2
  • 2
  • 5
  • 15
  • >20
  • >20
  • >20
  • >20
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  • 5
  • 1021
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  • 1
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  • 3
  • 4
  • 4
  • 4
  • 3
  • 2
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  • 0
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  • 18 65
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  • 18 65
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  • 19 65
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  • 18 64
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  • 26 78
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  • 27 80
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  • 24 75
  • 19 66
  • 17 63
  • 16 61
  • 14 58
  • 14 56
Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast :
No gale warning.

The reliability of the situation is poor.
For the night from Monday to Tuesday N force 1 in the early part of the night turning WSW. Gusts reaching 7 knots at the end of the night.

Smooth sea. Low, fairly long swell from WNW. Visibility reduced by mist becoming reduced by mist in the middle of the night. Daytime of Tuesday 15 september : Warning:reduced visibility early in the day.

Fog giving way to sun in early morning, sunny becoming changeable in the afternoon. No precipitation in the morning, light showers in the afternoon. In the evening, lots of good clear periods.
Light showers progressively becoming less frequent. WSW force 2 in the morning turning NW force 3 in the middle of the day. Gusts reaching 17 knots in the evening. Smooth sea becoming smooth to slight in the middle of the day then slight. Low, fairly long swell from WNW. Visibility reduced by mist becoming excellent in the middle of the day then poor.

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)
12h
330
7
29
15.3
1020
11
11h
270
19
30
15.5
1020
10
10h
220
11
19
13.9
1020
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

83
Low tide 04h58 1.76m
High tide 10h23 11.6m
77
Low tide 17h09 2m
High tide 22h34 11.4m
www.shom.fr - © SHOM 2026 - Local times
Wed
09
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