Weather anchorage Mouillage de Saint-Cast 2

Saint-Cast-le-Guildo FRALon : -2°14’,6646 W Lat : 48°38’,496 N Alt : 1m
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Weather Risk Briefing
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BULLETIN

Reliability 75%
Tuesday 1 september Tuesday 1 sep
METEO CONSULT Run : 31/08 15Z Mesh : 1km Updated, 31min 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
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
25
20
15
10
80
70
60
50
  • Tue 1
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  • 15h
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  • 18h
  • 19h
  • 20h
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  • 22h
  • 23h
Run : 31/08 15Z Mesh : 1km Updated, 31min ago Update in 2h
  • Tue 1
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
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  • 15h
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  • 285° W WNW
  • 280° W W
  • 270° W W
  • 270° W W
  • 260° W W
  • 260° W W
  • 255° W WSW
  • 245° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 255° W WSW
  • 295° NW WNW
  • 315° NW NW
  • 330° NW NNW
  • 345° N NNW
  • 10° N NNE
  • 20° N NNE
  • 20° N NNE
  • 15° N NNE
  • 15° N NNE
  • 15° N NNE
  • 355° N N
  • 345° N NNW
  • 335° NW NNW
  • 8 15 4 9 3
  • 7 13 4 8 3
  • 8 14 4 9 3
  • 7 13 4 8 3
  • 6 12 3 7 3
  • 6 11 3 7 2
  • 5 9 3 6 2
  • 5 10 3 6 2
  • 6 11 3 7 2
  • 5 10 3 6 2
  • 4 8 2 5 2
  • 5 9 3 6 2
  • 5 10 3 6 2
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 6 12 3 7 3
  • 8 14 4 9 3
  • 7 13 4 8 3
  • 6 11 3 7 2
  • 5 9 3 6 2
  • 4 7 2 4 2
  • 4 7 2 4 2
  • 13 25 7 16 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 10 18 5 11 3
  • 9 16 4 10 3
  • 10 18 5 11 3
  • 9 17 5 11 3
  • 9 17 5 11 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 10 18 5 11 3
  • 10 19 5 12 3
  • 10 19 5 12 3
  • 10 19 5 12 3
  • 11 20 6 12 4
  • 11 21 6 13 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 11 20 6 12 4
  • 9 16 4 10 3
  • 8 14 4 9 3
  • 6 12 3 7 3
  • 0.7
  • 0.6
  • 0.6
  • 0.6
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 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
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0.1
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 345° N NNW
  • 340° N NNW
  • 340° N NNW
  • 340° N NNW
  • 340° N NNW
  • 335° NW NNW
  • 335° NW NNW
  • 330° NW NNW
  • 330° NW NNW
  • 340° N NNW
  • 335° NW NNW
  • 335° NW NNW
  • 335° NW NNW
  • 340° N NNW
  • 335° NW NNW
  • 335° NW NNW
  • 335° NW NNW
  • 330° NW NNW
  • 330° NW NNW
  • 330° NW NNW
  • 330° NW NNW
  • 335° NW NNW
  • 335° NW NNW
  • 335° NW NNW
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
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  • 0.5
  • 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
  • 7
  • 7
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  • 7
  • 8
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  • 8
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  • 100
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  • 90
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  • 80
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  • 80
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  • 10.3
  • 8.2
  • 5.8
  • 3.6
  • 2.1
  • 1.5
  • 2.3
  • 4.5
  • 7.4
  • 10.0
  • 11.6
  • 11.6
  • 10.6
  • 8.7
  • 6.5
  • 4.3
  • 2.6
  • 1.8
  • 2.2
  • 4.1
  • 6.8
  • 9.5
  • 11.3
  • 11.7
  • 20 68
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  • 55
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  • >20
  • >20
  • 15
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  • 15
  • 10
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  • 10
  • 5
  • 10
  • >20
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  • 1023
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  • 0
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  • 2
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  • 17 63
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  • 18 64
  • 14 57
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  • 11 52
  • 13 56
  • 17 63
  • 20 67
  • 21 70
  • 22 72
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  • 22 71
  • 19 66
  • 18 64
  • 17 63
  • 17 62
  • 16 61
  • 16 61
Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast 2 :
No gale warning.

We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.

Sunny despite some cloudy spells but no rain. In the evening, cloudy spells, sometimes dense.
No precipitation. WSW force 2 in the morning turning N force 3 in the middle of the day. Gusts reaching 12 knots in the evening. Smooth to slight sea becoming smooth in the evening. Low, fairly long swell from NNW. Poor visibility becoming excellent in the middle of the day.

semaphore stations

Station Dinard located 14 km from Mouillage de Saint-Cast 2
WIND
WEATHER
Local time Dir.
(°)
Speed
(nd)
Gust
(nd)
Temp.
(°C)
Pressure
(hPa)
Visibility
(M)
00h
240
7
16
14.2
1022
0
23h
290
10
19
15.3
1022
0
22h
300
9
22
16.2
1022
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

89
Low tide 05h03 1.51m
High tide 10h28 11.78m
85
Low tide 17h16 1.8m
High tide 22h43 11.7m
www.shom.fr - © SHOM 2026 - Local times
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