Weather port Saint-Cast-le-Guildo

Saint-Cast-le-Guildo FRALon : -2°14’,7 W Lat : 48°38’,298 N Alt : 0m
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BULLETIN

Reliability 90%
Sunday 31 may Sunday 31 may
METEO CONSULT Run : 31/05 00Z Mesh : 1km 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

Offshore

Offshore wind
Offshore sea (m)
20
15
10
5
0
40
30
20
10
0
10
5
0
30
20
10
0
10
5
0
0.5
0
3
0
30
25
20
15
10
80
70
60
50
  • Mon 1
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
Run : 31/05 00Z Mesh : 1km Updated, 4h ago Update in 2h
  • Mon 1
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 320° NW NW
  • 320° NW NW
  • 320° NW NW
  • 325° NW NW
  • 325° NW NW
  • 320° NW NW
  • 310° NW NW
  • 305° NW NW
  • 295° NW WNW
  • 290° W WNW
  • 275° W W
  • 250° W WSW
  • 245° SW WSW
  • 245° SW WSW
  • 230° SW SW
  • 215° SW SW
  • 210° SW SSW
  • 215° SW SW
  • 210° SW SSW
  • 220° SW SW
  • 275° W W
  • 315° NW NW
  • 355° N N
  • 45° NE NE
  • 7 13 4 8 3
  • 8 14 4 9 3
  • 8 15 4 9 3
  • 10 18 5 11 3
  • 9 16 4 10 3
  • 8 15 4 9 3
  • 7 13 4 8 3
  • 6 11 3 7 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 4 7 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 4 8 2 5 2
  • 5 10 3 6 2
  • 4 8 2 5 2
  • 3 5 1 3 1
  • 2 4 1 2 1
  • 3 5 1 3 1
  • 3 6 2 4 2
  • 11 21 6 13 4
  • 13 24 7 15 4
  • 15 28 8 17 4
  • 18 34 9 21 5
  • 17 32 9 20 5
  • 16 29 8 18 5
  • 14 26 7 16 4
  • 11 21 6 13 4
  • 10 18 5 11 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 8 15 4 9 3
  • 6 12 3 7 3
  • 6 12 3 7 3
  • 6 12 3 7 3
  • 6 11 3 7 2
  • 6 12 3 7 3
  • 9 17 5 11 3
  • 11 21 6 13 4
  • 12 22 6 14 4
  • 11 20 6 12 4
  • 12 22 6 14 4
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
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  • 0.2
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  • 0.2
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  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 10° N N
  • 10° N N
  • 5° N N
  • 5° N N
  • 10° N N
  • 10° N N
  • 5° N N
  • 5° N N
  • 0° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 5° N N
  • 10° N N
  • 10° N N
  • 10° N N
  • 0.2
  • 0.2
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  • 0.3
  • 0.3
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  • 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
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 5
  • 5
  • 5
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • 9
  • 4
  • 9
  • 4
  • 5
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  • 5
  • 9
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  • 30
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  • 3.8
  • 5.8
  • 8.1
  • 10.0
  • 10.9
  • 10.6
  • 9.5
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  • 5.8
  • 4.1
  • 2.9
  • 2.5
  • 3.2
  • 5.0
  • 7.2
  • 9.3
  • 10.5
  • 10.5
  • 9.7
  • 8.2
  • 6.3
  • 4.6
  • 3.3
  • 2.7
  • 15 60
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  • 0
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  • 10
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  • 15
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  • 45
  • 70
  • 60
  • 50
  • 70
  • 75
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  • 75
  • 75
  • 55
  • 35
  • 30
  • 40
  • 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
  • -
  • -
  • -
  • -
  • -
  • -
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  • -
  • -
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  • 0
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  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 15
  • 10
  • 10
  • 10
  • 10
  • 5
  • 5
  • 5
  • 5
  • 5
  • 10
  • >20
  • >20
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  • >20
  • >20
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  • 1021
  • 1021
  • 1021
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  • 1021
  • 1020
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  • 1019
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  • 6
  • 4
  • 3
  • 1
  • 1
  • 0
  • 0
  • 0
  • 0
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  • 0
  • 0
  • 0
  • 0
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  • 0
  • 0
  • 1
  • 2
  • 3
  • 6
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  • 7
  • 19 66
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  • 20 68
  • 17 63
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  • 13 56
  • 15 59
  • 17 63
  • 20 68
  • 23 73
  • 24 75
  • 24 75
  • 26 78
  • 13 24 4 7 15
  • 13 25 4 7 16
  • 14 26 4 7 16
  • 15 27 4 8 17
  • 15 27 4 8 17
  • 13 25 4 7 16
  • 12 22 4 6 14
  • 11 20 4 6 12
  • 10 18 3 5 11
  • 9 16 3 4 10
  • 8 15 3 4 9
  • 7 13 3 4 8
  • 7 13 3 4 8
  • 7 13 3 4 8
  • 6 12 3 3 7
  • 8 14 3 4 9
  • 8 15 3 4 9
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  • 7 13 3 4 8
  • 5 10 2 3 6
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  • 6 11 2 3 7
  • 7 13 3 4 8
  • 6 11 2 3 7
  • 0.7
  • 0.7
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  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Caption   Glossary

Expert opinion

High 1024 hPa centered at 160 nautical miles in the North-West of Cape Ortegal (Spain) moving at 17 knots to the East-North-East to be centered on the North of the Bay of Biscay.

For Saint-Cast-le-Guildo :
No gale warning.

We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.

Clear skies. In the evening, relatively clear skies becoming changeable.
NW wind force 3 from the middle of the day. Gusts reaching 18 knots in the evening. Smooth sea becoming smooth to slight in the evening. Low, short swell from N. Excellent visibility becoming good in the evening.

semaphore stations

Station Dinard located 14 km from Saint-Cast-le-Guildo
WIND
WEATHER
Local time Dir.
(°)
Speed
(nd)
Gust
(nd)
Temp.
(°C)
Pressure
(hPa)
Visibility
(M)
16h
350
25
33
18.9
1021
0
15h
340
21
31
19.3
1021
0
14h
340
21
29
19.4
1021
11
observation.semaphores_link
Météo France - RADOME
observation.semaphore_link

Tides at Saint-Cast

71
Low tide 02h20 2.58m
High tide 07h54 10.59m
71
Low tide 14h38 2.63m
High tide 20h11 10.89m
www.shom.fr - © SHOM 2026 - Local times

Go further

Sun
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* +33 1 77 86 86 86: short number of forecasts for France accessible from France - €2.99 per call** 0899 70 12 34: number of forecasts for France and the World accessible from France - €2.99 per call



        
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