Weather port Saint-Briac-sur-Mer

Saint-Briac-sur-Mer FRALon : -2°8’,3094 W Lat : 48°37’,506 N Alt : 0m
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Weather Risk Briefing
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BULLETIN

Reliability 65%
Monday 17 august Monday 17 aug
METEO CONSULT Run : 12/08 18Z 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

Offshore

Offshore wind
Offshore sea (m)
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
35
30
25
20
15
10
100
90
80
70
60
50
  • Mon 17
  • 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 : 12/08 18Z Mesh : 19km Updated, 4h ago Update in 2h
  • Mon 17
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 350° N N
  • 355° N N
  • 0° N N
  • 355° N N
  • 355° N N
  • 350° N N
  • 355° N N
  • 0° 0 0
  • 10° N N
  • 5° N N
  • 15° N NNE
  • 10° N N
  • 0° N N
  • 355° N N
  • 350° N N
  • 345° N NNW
  • 345° N NNW
  • 345° N NNW
  • 340° N NNW
  • 340° N NNW
  • 335° NW NNW
  • 335° NW NNW
  • 325° NW NNW
  • 315° NW NW
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 5 9 3 6 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 3 5 1 3 1
  • 3 5 1 3 1
  • 2 4 1 2 1
  • 3 5 1 3 1
  • 2 4 1 2 1
  • 3 5 1 3 1
  • 3 6 2 4 2
  • 4 8 2 5 2
  • 5 10 3 6 2
  • 6 12 3 7 3
  • 8 14 4 9 3
  • 8 15 4 9 3
  • 9 17 5 11 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 7 13 4 8 3
  • 5 10 3 6 2
  • 3 6 2 4 2
  • 11 20 6 12 4
  • 10 19 5 12 3
  • 9 16 4 10 3
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 4 8 2 5 2
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 7 13 4 8 3
  • 8 14 4 9 3
  • 10 19 5 12 3
  • 11 20 6 12 4
  • 12 22 6 14 4
  • 14 26 7 16 4
  • 15 27 8 17 4
  • 15 28 8 17 4
  • 15 28 8 17 4
  • 15 28 8 17 4
  • 16 30 8 19 5
  • 14 26 7 16 4
  • 13 25 7 16 4
  • 12 23 6 14 4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 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
  • 0.3
  • 0.4
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • 0.2
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 325° NW NW
  • 330° NW NNW
  • 330° NW NNW
  • 325° NW NW
  • 320° NW NW
  • 315° NW NW
  • 310° NW NW
  • 300° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° NW WNW
  • 295° 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
  • 305° NW NW
  • 310° NW NW
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.2
  • 0.3
  • 0.3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 4
  • 4
  • 4
  • 3
  • 4
  • 4
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 6
  • 5
  • 4
  • 3
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 10
  • 7
  • 8
  • 9
  • 10
  • 10
  • 10
  • 10
  • 11.1
  • 9.4
  • 7.1
  • 4.8
  • 2.9
  • 1.8
  • 1.8
  • 3.2
  • 5.8
  • 8.6
  • 10.7
  • 11.5
  • 11.0
  • 9.6
  • 7.5
  • 5.3
  • 3.4
  • 2.2
  • 2.0
  • 3.2
  • 5.5
  • 8.2
  • 10.4
  • 11.5
  • 21 70
  • 21 70
  • 21 70
  • 21 70
  • 21 70
  • 21 70
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  • 21 70
  • 10
  • 10
  • 10
  • 10
  • 15
  • 15
  • 15
  • 15
  • 10
  • 15
  • 15
  • 15
  • 10
  • 5
  • 5
  • 5
  • 5
  • 5
  • 10
  • 10
  • 15
  • 10
  • 10
  • 10
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 5
  • 5
  • 5
  • 4
  • 3
  • 2
  • 2
  • 2
  • 5
  • 15
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 10
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1020
  • 1020
  • 1020
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1018
  • 1018
  • 1018
  • 1018
  • 1018
  • 1018
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 2
  • 3
  • 5
  • 6
  • 7
  • 7
  • 5
  • 4
  • 2
  • 1
  • 0
  • 0
  • 0
  • 0
  • 19 66
  • 18 65
  • 18 64
  • 17 62
  • 16 61
  • 16 60
  • 16 60
  • 15 60
  • 17 62
  • 18 64
  • 20 67
  • 23 74
  • 23 73
  • 24 75
  • 27 81
  • 25 78
  • 26 79
  • 27 81
  • 26 78
  • 25 76
  • 23 74
  • 21 71
  • 20 68
  • 18 65
  • 17 62
  • 16 61
  • 16 61
  • 15 60
  • 15 59
  • 15 58
  • 15 58
  • 15 58
  • 16 60
  • 18 65
  • 21 70
  • 29 83
  • 29 84
  • 28 83
  • 33 91
  • 30 86
  • 30 86
  • 30 87
  • 28 82
  • 28 83
  • 26 78
  • 24 74
  • 19 65
  • 17 62
  • 9 17 3 5 11
  • 8 15 3 4 9
  • 8 14 3 4 9
  • 6 12 3 3 7
  • 6 12 3 3 7
  • 6 11 2 3 7
  • 6 11 2 3 7
  • 5 9 2 3 6
  • 5 10 2 3 6
  • 4 7 2 2 4
  • 4 7 2 2 4
  • 4 7 2 2 4
  • 4 8 2 2 5
  • 5 10 2 3 6
  • 6 11 2 3 7
  • 8 14 3 4 9
  • 9 17 3 5 11
  • 11 20 4 6 12
  • 10 19 3 5 12
  • 11 20 4 6 12
  • 10 19 3 5 12
  • 10 19 3 5 12
  • 10 19 3 5 12
  • 10 19 3 5 12
  • 0.5
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.5
  • 0.5
  • 0.5
  • 0.5
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Caption   Glossary

Expert opinion

A northerly and variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, weak and particularly variable.

For Saint-Briac-sur-Mer :
No gale warning.

The reliability of the situation is poor.
For the night from Sunday to Monday N force 2 in the early part of the night becoming force 1. Gusts reaching 11 knots in the early part of the night.

Smooth to slight sea becoming smooth at the end of the night. Low, short swell from NW. Poor visibility becoming reduced by mist in the middle of the night then reduced by mist. Daytime of Monday 17 august : The sky will remain changeable.

Cloud and sun in the morning, skies becoming progressively hazier during the afternoon. No precipitation. In the evening, skies gradually hazing over.
No precipitation. N force 2 in the morning becoming NNW force 3 in the middle of the day. Gusts reaching 16 knots in the evening. Smooth sea becoming smooth to slight in the evening. Low, short swell from NW. Visibility reduced by mist becoming excellent in the middle of the day then good.

semaphore stations

Station Dinard located 7 km from Saint-Briac-sur-Mer
WIND
WEATHER
Local time Dir.
(°)
Speed
(nd)
Gust
(nd)
Temp.
(°C)
Pressure
(hPa)
Visibility
(M)
07h
220
3
7
18.9
1020
0
06h
280
2
8
20.1
1020
0
05h
210
4
8
21.5
1020
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

84
Low tide 05h34 1.6m
High tide 11h00 11.53m
78
Low tide 17h44 1.94m
High tide 23h09 11.47m
www.shom.fr - © SHOM 2026 - Local times

Go further

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