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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Fri
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Sat
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Sun
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BULLETIN

Reliability 55%
Saturday 22 august Saturday 22 aug
METEO CONSULT Run : 13/08 12Z Mesh : 19km Updated, 5h ago Update in 1h

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
20
15
10
5
0
10
5
0
1
0.5
0
3
0
30
25
20
15
10
90
80
70
60
50
  • Sat 22
  • 00h
  • 01h
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  • 15h
  • 16h
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  • 18h
  • 19h
  • 20h
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  • 22h
  • 23h
Run : 13/08 12Z Mesh : 19km Updated, 5h ago Update in 1h
  • Sat 22
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
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  • 15° N NNE
  • 15° N NNE
  • 20° N NNE
  • 20° N NNE
  • 25° NE NNE
  • 30° NE NNE
  • 40° NE NE
  • 50° NE NE
  • 65° NE ENE
  • 50° NE NE
  • 45° NE NE
  • 45° NE NE
  • 25° NE NNE
  • 10° N N
  • 5° N N
  • 355° N N
  • 355° N N
  • 350° N NNW
  • 350° N N
  • 355° N N
  • 355° N N
  • 0° 0 0
  • 5° N N
  • 20° N NNE
  • 4 8 2 5 2
  • 4 7 2 4 2
  • 3 6 2 4 2
  • 3 5 1 3 1
  • 3 5 1 3 1
  • 2 4 1 2 1
  • 2 4 1 2 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 2 4 1 2 1
  • 3 5 1 3 1
  • 3 6 2 4 2
  • 4 8 2 5 2
  • 5 9 3 6 2
  • 7 13 4 8 3
  • 9 16 4 10 3
  • 11 20 6 12 4
  • 10 19 5 12 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 8 15 4 9 3
  • 6 12 3 7 3
  • 5 9 3 6 2
  • 13 25 7 16 4
  • 12 23 6 14 4
  • 12 22 6 14 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 20 6 12 4
  • 11 21 6 13 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 12 23 6 14 4
  • 13 25 7 16 4
  • 15 27 8 17 4
  • 15 28 8 17 4
  • 16 29 8 18 5
  • 17 31 9 19 5
  • 16 29 8 18 5
  • 15 28 8 17 4
  • 15 27 8 17 4
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • 0.1
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 290° W WNW
  • 295° NW WNW
  • 295° NW WNW
  • 300° NW WNW
  • 300° NW WNW
  • 305° NW NW
  • 305° NW NW
  • 305° NW NW
  • 310° NW NW
  • 305° NW WNW
  • 300° NW WNW
  • 295° NW WNW
  • 300° NW WNW
  • 305° NW WNW
  • 305° NW NW
  • 305° NW NW
  • 305° NW NW
  • 305° NW NW
  • 300° NW WNW
  • 300° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 0.3
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  • 0.4
  • 0.4
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  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 4
  • 4
  • 4
  • 4
  • 4
  • 3
  • 3
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  • 3
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  • 4
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  • 4
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  • 15
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  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
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  • 10
  • 9
  • 10
  • 10
  • 10
  • 7.3
  • 7.9
  • 8.1
  • 7.9
  • 7.5
  • 6.9
  • 6.2
  • 5.6
  • 5.3
  • 5.3
  • 5.6
  • 6.1
  • 6.8
  • 7.5
  • 7.9
  • 8.1
  • 7.9
  • 7.5
  • 6.9
  • 6.2
  • 5.7
  • 5.3
  • 5.2
  • 5.5
  • 22 71
  • 22 71
  • 22 71
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  • 40
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  • 55
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  • 65
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  • 55
  • 0
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  • 0
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  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • -
  • -
  • -
  • -
  • -
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  • -
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  • 0
  • 0
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  • 25
  • 25
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  • 20
  • 30
  • 30
  • 30
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  • 20
  • 0
  • 0
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  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • >20
  • 15
  • 15
  • 10
  • 10
  • 10
  • 10
  • 10
  • 15
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 1016
  • 1016
  • 1016
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  • 1015
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  • 1014
  • 1014
  • 1014
  • 1013
  • 1013
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  • 1014
  • 1014
  • 0
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  • 1
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  • 4
  • 5
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  • 5
  • 4
  • 3
  • 2
  • 1
  • 0
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  • 0
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  • 16 61
  • 16 60
  • 15 59
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  • 15 58
  • 14 58
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  • 16 61
  • 18 64
  • 20 67
  • 21 69
  • 22 71
  • 23 74
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  • 22 71
  • 21 70
  • 20 69
  • 19 66
  • 18 64
  • 17 62
  • 14 58
  • 14 57
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  • 14 57
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  • 14 56
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  • 14 57
  • 14 57
  • 16 61
  • 19 65
  • 21 70
  • 25 77
  • 25 77
  • 27 80
  • 26 78
  • 25 77
  • 24 75
  • 25 77
  • 24 74
  • 22 72
  • 18 64
  • 16 62
  • 15 58
Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast :
No gale warning.


For the night from Friday to Saturday NNE force 2 becoming force 1 in the middle of the night then NE. Gusts reaching 13 knots in the early part of the night.

Smooth to slight sea. Low, short swell from WNW. Excellent visibility becoming good in the middle of the night then good. Daytime of Saturday 22 august : The atmosphere will remain unstable.

Skies changeable to very cloudy. Light showers all day. In the evening, clear periods developing.
Possibility of showers NE force 1 freshening N force 4 in the middle of the day then force 3. Gusts reaching 17 knots in the evening. Smooth to slight sea. Low, short swell from NW. 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)
01h
310
14
21
19.6
1021
9
00h
300
12
21
19.6
1021
6
23h
300
11
21
19.6
1021
8
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

27
High tide 01h56 8.1m
Low tide 08h38 5.24m
26
High tide 14h58 8.09m
Low tide 21h44 5.23m
www.shom.fr - © SHOM 2026 - Local times
Fri
14
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Sat
15
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Sun
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Mon
17
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Wed
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Fri
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Sat
22
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Sun
23
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Wed
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Thu
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Fri
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