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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Wed
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BULLETIN

Reliability 75%
Monday 10 august Monday 10 aug
METEO CONSULT Run : 9/08 00Z Mesh : 1km Updated, 1h 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
30
25
20
15
10
10
5
0
20
15
10
5
10
5
0
0.5
0
3
0
30
25
20
15
10
90
80
70
60
50
  • Mon 10
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
Run : 9/08 00Z Mesh : 1km Updated, 1h ago Update in 2h
  • Mon 10
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 305° NW NW
  • 305° NW NW
  • 305° NW WNW
  • 305° NW NW
  • 310° NW NW
  • 315° NW NW
  • 320° NW NW
  • 325° NW NNW
  • 335° NW NNW
  • 335° NW NNW
  • 335° NW NNW
  • 340° N NNW
  • 345° N NNW
  • 350° N N
  • 350° N NNW
  • 350° N NNW
  • 345° N NNW
  • 340° N NNW
  • 335° NW NNW
  • 340° N NNW
  • 340° N NNW
  • 335° NW NNW
  • 340° N NNW
  • 360° N N
  • 9 16 4 10 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 8 15 4 9 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 8 14 4 9 3
  • 8 14 4 9 3
  • 7 13 4 8 3
  • 8 14 4 9 3
  • 8 15 4 9 3
  • 8 15 4 9 3
  • 8 15 4 9 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 8 14 4 9 3
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 6 12 3 7 3
  • 13 25 7 16 4
  • 15 27 8 17 4
  • 13 25 7 16 4
  • 13 24 7 15 4
  • 13 24 7 15 4
  • 13 24 7 15 4
  • 13 25 7 16 4
  • 13 24 7 15 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 13 24 7 15 4
  • 14 26 7 16 4
  • 15 27 8 17 4
  • 15 27 8 17 4
  • 15 28 8 17 4
  • 15 28 8 17 4
  • 15 28 8 17 4
  • 16 29 8 18 5
  • 16 29 8 18 5
  • 15 28 8 17 4
  • 14 26 7 16 4
  • 12 23 6 14 4
  • 11 21 6 13 4
  • 11 20 6 12 4
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.2
  • 0.3
  • 0.3
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 250° W WSW
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 320° NW NW
  • 320° NW NW
  • 320° NW NW
  • 320° NW NW
  • 320° NW NW
  • 320° NW NW
  • 320° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 310° NW NW
  • 315° NW NW
  • 320° NW NW
  • 325° NW NW
  • 330° NW NNW
  • 330° NW NNW
  • 330° NW NNW
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 2
  • 3
  • 3
  • 3
  • 3
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 5
  • 4
  • 5
  • 5
  • 5
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  • 4
  • 4
  • 4
  • 4
  • 4
  • 10
  • 15
  • 15
  • 15
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  • 20
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  • 25
  • 25
  • 20
  • 20
  • 20
  • 20
  • 15
  • 15
  • 15
  • 20
  • 20
  • 20
  • 3.7
  • 4.3
  • 5.6
  • 7.1
  • 8.6
  • 9.5
  • 9.6
  • 9.0
  • 7.9
  • 6.5
  • 5.1
  • 4.0
  • 3.5
  • 3.7
  • 4.8
  • 6.4
  • 8.2
  • 9.6
  • 10.2
  • 10.0
  • 9.0
  • 7.5
  • 5.8
  • 4.3
  • 20 69
  • 20 69
  • 20 69
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  • 10
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  • 15
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  • 25
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  • 40
  • 55
  • 45
  • 55
  • 40
  • 25
  • 15
  • 15
  • 10
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 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
  • 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
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 15
  • >20
  • 15
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 15
  • 1018
  • 1018
  • 1018
  • 1018
  • 1018
  • 1018
  • 1018
  • 1018
  • 1019
  • 1019
  • 1020
  • 1020
  • 1021
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  • 1021
  • 1021
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  • 1020
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  • 1020
  • 1020
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 2
  • 3
  • 5
  • 7
  • 7
  • 7
  • 6
  • 4
  • 2
  • 1
  • 0
  • 0
  • 0
  • 0
  • 19 67
  • 19 66
  • 19 66
  • 19 66
  • 19 66
  • 19 65
  • 18 65
  • 18 65
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  • 19 66
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  • 20 68
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  • 20 67
  • 20 67
  • 16 61
  • 16 61
  • 16 61
  • 16 61
  • 16 60
  • 15 60
  • 15 60
  • 16 60
  • 16 61
  • 18 64
  • 19 66
  • 20 68
  • 25 76
  • 26 79
  • 27 80
  • 27 81
  • 27 80
  • 27 80
  • 25 78
  • 24 76
  • 23 73
  • 18 64
  • 17 63
  • 17 63
Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast :
No gale warning.

We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Sunday to Monday NW wind force 3 continuing all night. Gusts reaching 13 knots.

Smooth sea becoming smooth to slight at the end of the night. Low, short swell from WSW temporarily from N in the middle of the night. Excellent visibility. Daytime of Monday 10 august : Improving during the day:the sky will clear.

Cloudy spells, dense at times in the morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
NNW wind force 3 continuing all day. Gusts reaching 16 knots from the middle of the day. Smooth to slight sea. Low, short swell from NW. Good visibility becoming excellent in the middle of the day then good.

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)
06h
230
12
16
17.9
1014
0
05h
240
10
16
18.3
1014
0
04h
200
7
9
18
1014
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

59
High tide 05h38 9.65m
Low tide 12h19 3.46m
66
High tide 18h10 10.26m
www.shom.fr - © SHOM 2026 - Local times
Sun
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Tue
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Wed
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Sat
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Sun
16
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Mon
17
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Tue
18
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Wed
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Thu
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Sat
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Sun
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