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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Sat
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Sun
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BULLETIN

Reliability 55%
Monday 24 august Monday 24 aug
METEO CONSULT Run : 13/08 12Z Mesh : 19km Updated, 12h 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
20
10
0
10
5
0
20
15
10
5
0
5
0
1
0.5
0
3
0
30
25
20
15
10
90
80
70
60
50
  • Mon 24
  • 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 : 13/08 12Z Mesh : 19km Updated, 12h ago Update imminent
  • Mon 24
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 10° N NNE
  • 30° NE NNE
  • 30° NE NNE
  • 30° NE NNE
  • 140° SE SE
  • 140° SE SE
  • 140° SE SE
  • 200° S SSW
  • 200° S SSW
  • 200° S SSW
  • 270° W W
  • 270° W W
  • 270° W W
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 320° NW NW
  • 320° NW NW
  • 320° NW NW
  • 290° W WNW
  • 290° W WNW
  • 4 7 2 4 2
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 1 1 0 1 1
  • 1 1 0 1 1
  • 1 1 0 1 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 3 5 1 3 1
  • 3 5 1 3 1
  • 3 5 1 3 1
  • 4 7 2 4 2
  • 4 7 2 4 2
  • 4 7 2 4 2
  • 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
  • 14 26 7 16 4
  • 13 25 7 16 4
  • 13 25 7 16 4
  • 13 25 7 16 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 10 19 5 12 3
  • 10 19 5 12 3
  • 10 19 5 12 3
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 13 25 7 16 4
  • 13 25 7 16 4
  • 13 25 7 16 4
  • 12 23 6 14 4
  • 12 23 6 14 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
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 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
  • 310° NW NW
  • 315° NW NW
  • 310° NW NW
  • 310° NW NW
  • 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
  • 0
  • 0
  • 0
  • 10
  • 10
  • 5
  • 5
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 160
  • 160
  • 150
  • 150
  • 140
  • 140
  • 140
  • 130
  • 130
  • 130
  • 120
  • 120
  • 120
  • 130
  • 130
  • 130
  • 130
  • 130
  • 130
  • 15
  • 15
  • 15
  • 15
  • 15
  • 4.9
  • 5.4
  • 6.2
  • 7.2
  • 8.0
  • 8.5
  • 8.4
  • 8.0
  • 7.3
  • 6.3
  • 5.5
  • 4.9
  • 4.7
  • 4.9
  • 5.8
  • 6.9
  • 8.0
  • 8.8
  • 9.1
  • 8.8
  • 7.9
  • 6.8
  • 5.6
  • 4.6
  • 22 71
  • 22 71
  • 22 71
  • 22 71
  • 22 71
  • 22 71
  • 22 71
  • 22 71
  • 22 71
  • 22 71
  • 22 71
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  • 22 71
  • 22 71
  • 22 71
  • 22 71
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  • 22 71
  • 55
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 55
  • 55
  • 55
  • 60
  • 60
  • 60
  • 60
  • 60
  • 0
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • 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
  • 45
  • 45
  • 45
  • 45
  • 50
  • 50
  • 50
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  • 50
  • 50
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  • 50
  • 50
  • 50
  • 50
  • 50
  • 40
  • 40
  • 40
  • 35
  • 35
  • 35
  • 45
  • 45
  • 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
  • 15
  • 15
  • 15
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1013
  • 1012
  • 1012
  • 1012
  • 1012
  • 1012
  • 1012
  • 1012
  • 1012
  • 1012
  • 1013
  • 1013
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 3
  • 3
  • 3
  • 6
  • 6
  • 6
  • 3
  • 3
  • 3
  • 0
  • 0
  • 0
  • 0
  • 0
  • 18 64
  • 15 59
  • 15 59
  • 15 59
  • 15 58
  • 15 58
  • 15 58
  • 14 58
  • 14 58
  • 14 58
  • 19 66
  • 19 66
  • 19 66
  • 23 74
  • 23 74
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  • 22 72
  • 22 72
  • 22 72
  • 21 69
  • 21 69
  • 21 69
  • 18 65
  • 18 65
  • 16 61
  • 15 58
  • 15 58
  • 15 58
  • 15 58
  • 15 58
  • 15 58
  • 14 56
  • 14 56
  • 14 56
  • 20 69
  • 20 69
  • 20 69
  • 26 80
  • 26 80
  • 26 80
  • 27 81
  • 27 81
  • 27 81
  • 25 78
  • 25 78
  • 25 78
  • 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 Sunday to Monday NNE force 2 becoming force 1 in the middle of the night then SE. Gusts reaching 14 knots in the early part of the night.

Smooth sea. Low, fairly long swell from NW then from N at the end of the night. Excellent visibility becoming good in the middle of the night then good. Daytime of Monday 24 august : The atmosphere will remain unstable.

Good clear periods alternating with cloudy spells, sometimes dense. Light showers all day. In the evening, good clear periods but cloud building.
Possibility of showers SSW force 1 in the morning turning NW force 2 in the middle of the day. Gusts reaching 13 knots in the evening. Smooth to slight sea. Low from N. 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)
09h
300
21
29
19.5
1019
8
08h
310
20
27
18.9
1020
7
07h
300
21
27
18.9
1019
4
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

38
High tide 05h27 8.51m
Low tide 12h03 4.65m
44
High tide 17h55 9.09m
www.shom.fr - © SHOM 2026 - Local times
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