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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BULLETIN

Reliability 55%
Sunday 16 august Sunday 16 aug
METEO CONSULT Run : 9/08 12Z Mesh : 19km Updated, 4h 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
0
40
30
20
10
0
10
5
0
25
20
15
10
5
10
5
0
1
0.5
0
3
0
30
25
20
15
10
90
80
70
60
50
  • Sun 16
  • 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 12Z Mesh : 19km Updated, 4h ago Update in 2h
  • Sun 16
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 340° N NNW
  • 345° N NNW
  • 350° N NNW
  • 350° N N
  • 350° N N
  • 355° N N
  • 0° N N
  • 5° N N
  • 10° N NNE
  • 15° N NNE
  • 15° N NNE
  • 20° N NNE
  • 15° N NNE
  • 10° N NNE
  • 10° N N
  • 10° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 10° N N
  • 10° N N
  • 15° N NNE
  • 15° N NNE
  • 8 14 4 9 3
  • 7 13 4 8 3
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 4 8 2 5 2
  • 5 10 3 6 2
  • 6 11 3 7 2
  • 7 13 4 8 3
  • 8 14 4 9 3
  • 8 15 4 9 3
  • 8 15 4 9 3
  • 9 17 5 11 3
  • 10 18 5 11 3
  • 10 19 5 12 3
  • 11 20 6 12 4
  • 11 21 6 13 4
  • 12 22 6 14 4
  • 10 19 5 12 3
  • 9 17 5 11 3
  • 8 14 4 9 3
  • 16 29 8 18 5
  • 15 27 8 17 4
  • 14 26 7 16 4
  • 13 24 7 15 4
  • 12 23 6 14 4
  • 12 22 6 14 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 13 24 7 15 4
  • 13 24 7 15 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 12 23 6 14 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 12 23 6 14 4
  • 13 24 7 15 4
  • 13 24 7 15 4
  • 14 26 7 16 4
  • 16 29 8 18 5
  • 17 31 9 19 5
  • 17 31 9 19 5
  • 17 32 9 20 5
  • 17 32 9 20 5
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.8
  • 0.8
  • 0.8
  • 0.7
  • 0.7
  • 0.5
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.6
  • 0.6
  • 0.6
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.6
  • 110° E ESE
  • 220° SW SW
  • 325° NW NNW
  • 320° NW NW
  • 315° NW NW
  • 310° NW NW
  • 305° NW NW
  • 305° NW NW
  • 305° NW WNW
  • 305° NW WNW
  • 305° NW NW
  • 305° NW NW
  • 305° NW NW
  • 305° NW WNW
  • 305° NW WNW
  • 300° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 300° NW WNW
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.3
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  • 0.4
  • 3
  • 3
  • 3
  • 3
  • 3
  • 4
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  • 15
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  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 10.5
  • 8.2
  • 5.7
  • 3.4
  • 1.8
  • 1.1
  • 1.9
  • 4.2
  • 7.3
  • 10.1
  • 11.8
  • 11.8
  • 10.7
  • 8.7
  • 6.3
  • 4.0
  • 2.3
  • 1.5
  • 2.0
  • 4.0
  • 7.0
  • 9.8
  • 11.7
  • 12.0
  • 22 72
  • 22 72
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  • 45
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  • 55
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  • 60
  • 65
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  • 65
  • 60
  • 60
  • 60
  • 55
  • 55
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • 0
  • 0
  • 0
  • 0
  • 0
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  • 30
  • 30
  • 25
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  • 25
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  • 25
  • 25
  • 25
  • 30
  • 25
  • 25
  • 50
  • 50
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 15
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 15
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 1016
  • 1016
  • 1016
  • 1016
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1014
  • 1014
  • 1014
  • 1014
  • 1014
  • 1015
  • 1015
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 2
  • 3
  • 4
  • 5
  • 5
  • 5
  • 4
  • 3
  • 2
  • 1
  • 0
  • 0
  • 0
  • 0
  • 18 64
  • 17 63
  • 17 62
  • 17 62
  • 16 61
  • 16 61
  • 16 61
  • 16 61
  • 16 61
  • 18 64
  • 19 66
  • 21 69
  • 21 71
  • 22 72
  • 23 74
  • 23 74
  • 23 74
  • 24 74
  • 23 73
  • 22 71
  • 21 70
  • 20 68
  • 19 66
  • 18 64
  • 15 59
  • 15 59
  • 15 58
  • 15 58
  • 14 58
  • 14 58
  • 14 58
  • 15 58
  • 15 58
  • 17 62
  • 18 65
  • 23 73
  • 25 76
  • 26 80
  • 28 83
  • 28 83
  • 28 83
  • 28 83
  • 27 80
  • 25 76
  • 23 73
  • 18 65
  • 17 62
  • 15 58
Forecasts established in local time
Caption   Glossary

Expert opinion

For Mouillage de Saint-Cast :
No gale warning.


For the night from Saturday to Sunday NNW force 3 in the early part of the night becoming N force 2. Gusts reaching 16 knots in the early part of the night.

Slight sea becoming smooth to slight in the middle of the night. Low, short swell from ESE then from NW in the middle of the night then from NW. Good visibility becoming poor in the middle of the night. Daytime of Sunday 16 august : The sky will remain changeable.

Skies changeable to very cloudy. Risk of showers in the morning, possibility of a few spots in the afternoon. In the evening, clear periods developing.
Showers towards the end of the night. NNE force 3 in the morning becoming N force 4 in the evening. Gusts reaching 17 knots in the evening. Slight sea. Low, short swell from NW. 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)
00h
310
9
16
17.7
1018
0
23h
310
12
15
18.1
1018
0
22h
300
7
14
18.4
1017
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

95
Low tide 05h04 1.11m
High tide 10h28 11.96m
90
Low tide 17h14 1.44m
High tide 22h39 12.1m
www.shom.fr - © SHOM 2026 - Local times
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