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 55%
Wednesday 26 august Wednesday 26 aug
METEO CONSULT Run : 12/08 00Z Mesh : 19km Updated, 22h 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
15
10
5
0
30
25
20
15
10
5
10
5
0
20
15
10
5
0
5
0
1
0.5
0
3
0
30
25
20
15
10
80
70
60
50
  • Wed 26
  • 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 : 12/08 00Z Mesh : 19km Updated, 22h ago Update imminent
  • Wed 26
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 300° NW WNW
  • 275° W W
  • 275° W W
  • 275° W W
  • 270° W W
  • 270° W W
  • 270° W W
  • 265° W W
  • 265° W W
  • 265° W W
  • 290° W WNW
  • 290° W WNW
  • 290° W WNW
  • 305° NW NW
  • 305° NW NW
  • 305° NW NW
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 305° NW NW
  • 305° NW NW
  • 305° NW NW
  • 290° W WNW
  • 290° W WNW
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 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 11 3 7 2
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 4 7 2 4 2
  • 4 7 2 4 2
  • 13 25 7 16 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 13 24 7 15 4
  • 13 24 7 15 4
  • 13 24 7 15 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.7
  • 0.7
  • 0.7
  • 0.8
  • 0.8
  • 0.8
  • 0.9
  • 0.9
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.7
  • 0.7
  • 0.7
  • 0.8
  • 0.8
  • 0.8
  • 0.9
  • 0.9
  • 310° NW NW
  • 305° NW NW
  • 305° NW NW
  • 305° NW NW
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 9
  • 8
  • 8
  • 8
  • 8
  • 8
  • 8
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 120
  • 110
  • 110
  • 110
  • 110
  • 110
  • 110
  • 110
  • 110
  • 110
  • 100
  • 100
  • 100
  • 50
  • 50
  • 50
  • 90
  • 90
  • 90
  • 110
  • 110
  • 110
  • 50
  • 50
  • 3.9
  • 3.3
  • 3.5
  • 4.6
  • 6.3
  • 8.1
  • 9.5
  • 10.0
  • 9.7
  • 8.7
  • 7.2
  • 5.6
  • 4.2
  • 3.3
  • 3.2
  • 4.1
  • 5.8
  • 7.8
  • 9.6
  • 10.5
  • 10.4
  • 9.4
  • 7.9
  • 6.0
  • 21 70
  • 21 70
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  • 50
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  • 50
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  • 50
  • 50
  • 50
  • 50
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  • 50
  • 50
  • 50
  • 50
  • 50
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 50
  • 50
  • 50
  • 50
  • 50
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  • 50
  • 35
  • 35
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  • 35
  • 35
  • 35
  • 35
  • 20
  • 20
  • 20
  • 30
  • 30
  • 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
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 1018
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1018
  • 1018
  • 1018
  • 1018
  • 1018
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 3
  • 3
  • 3
  • 6
  • 6
  • 6
  • 3
  • 3
  • 3
  • 0
  • 0
  • 0
  • 0
  • 0
  • 17 63
  • 15 59
  • 15 59
  • 15 59
  • 15 59
  • 15 59
  • 15 59
  • 15 59
  • 15 59
  • 15 59
  • 18 65
  • 18 65
  • 18 65
  • 22 72
  • 22 72
  • 22 72
  • 21 70
  • 21 70
  • 21 70
  • 20 69
  • 20 69
  • 20 69
  • 18 64
  • 18 64
  • 15 59
  • 13 56
  • 13 56
  • 13 56
  • 13 56
  • 13 56
  • 13 56
  • 13 55
  • 13 55
  • 13 55
  • 18 65
  • 18 65
  • 18 65
  • 26 78
  • 26 78
  • 26 78
  • 25 77
  • 25 77
  • 25 77
  • 21 70
  • 21 70
  • 21 70
  • 17 62
  • 17 62
Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast :
No gale warning.


For the night from Tuesday to Wednesday WNW wind force 2 continuing all night. Gusts reaching 13 knots in the early part of the night.

Smooth to slight sea. Low, fairly long swell from NW. Excellent visibility becoming poor in the middle of the night then poor. Daytime of Wednesday 26 august : The unstable weather will die away during the day.

Good clear periods alternating with cloudy spells, sometimes dense. Some light showers in the morning, possibility of showers in the afternoon. In the evening, cloudy spells, sometimes dense.
Possibility of showers W force 2 in the morning turning NW force 3 in the middle of the day. Gusts reaching 13 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low 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)
08h
200
4
5
19.3
1021
0
07h
220
3
7
18.9
1020
0
06h
280
2
8
20.1
1020
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

63
Low tide 01h19 3.24m
High tide 07h03 10.03m
68
Low tide 13h42 3.14m
High tide 19h21 10.58m
www.shom.fr - © SHOM 2026 - Local times
Thu
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