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 75%
Thursday 13 august Thursday 13 aug
METEO CONSULT Run : 12/08 00Z Mesh : 1km Updated, 2h 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

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
0.5
0
3
0
40
35
30
25
20
15
100
90
80
70
60
  • Thu 13
  • 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 00Z Mesh : 1km Updated, 2h ago Update in 1h
  • Thu 13
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 90° E E
  • 100° E E
  • 115° SE ESE
  • 135° SE SE
  • 160° S SSE
  • 130° SE SE
  • 185° S S
  • 225° SW SW
  • 260° W WSW
  • 270° W W
  • 285° W WNW
  • 310° NW NW
  • 325° NW NW
  • 325° NW NNW
  • 325° NW NW
  • 330° NW NNW
  • 330° NW NNW
  • 325° NW NW
  • 320° NW NW
  • 310° NW NW
  • 310° NW NW
  • 305° NW NW
  • 300° NW WNW
  • 300° NW WNW
  • 6 12 3 7 3
  • 5 9 3 6 2
  • 4 7 2 4 2
  • 3 5 1 3 1
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 2 3 1 2 1
  • 2 3 1 2 1
  • 3 5 1 3 1
  • 3 5 1 3 1
  • 3 6 2 4 2
  • 4 7 2 4 2
  • 6 11 3 7 2
  • 7 13 4 8 3
  • 8 15 4 9 3
  • 9 16 4 10 3
  • 9 16 4 10 3
  • 8 15 4 9 3
  • 9 17 5 11 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 10 18 5 11 3
  • 14 26 7 16 4
  • 10 19 5 12 3
  • 8 15 4 9 3
  • 6 11 3 7 2
  • 9 16 4 10 3
  • 6 11 3 7 2
  • 5 9 3 6 2
  • 5 10 3 6 2
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 8 15 4 9 3
  • 9 16 4 10 3
  • 10 19 5 12 3
  • 12 23 6 14 4
  • 15 27 8 17 4
  • 16 29 8 18 5
  • 16 29 8 18 5
  • 15 28 8 17 4
  • 16 29 8 18 5
  • 17 31 9 19 5
  • 17 31 9 19 5
  • 16 30 8 19 5
  • 15 27 8 17 4
  • 15 27 8 17 4
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • 0.2
  • 0.2
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 20° N NNE
  • 20° N NNE
  • 15° N NNE
  • 15° N NNE
  • 10° N N
  • 5° N N
  • 355° N N
  • 340° N NNW
  • 330° NW NNW
  • 325° NW NW
  • 320° NW NW
  • 315° NW NW
  • 315° NW NW
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 310° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 315° NW NW
  • 0.3
  • 0.3
  • 0.3
  • 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
  • 0.1
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 3
  • 3
  • 3
  • 3
  • 3
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 6
  • 6
  • 7
  • 7
  • 6
  • 6
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 20
  • 20
  • 20
  • 20
  • 25
  • 35
  • 35
  • 35
  • 40
  • 40
  • 45
  • 40
  • 35
  • 20
  • 15
  • 15
  • 15
  • 20
  • 20
  • 20
  • 20
  • 20
  • 20
  • 20
  • 5.4
  • 3.3
  • 1.8
  • 1.3
  • 2.2
  • 4.4
  • 7.3
  • 10.0
  • 11.6
  • 11.7
  • 10.7
  • 8.8
  • 6.4
  • 4.1
  • 2.4
  • 1.5
  • 1.9
  • 3.8
  • 6.8
  • 9.7
  • 11.8
  • 12.4
  • 11.6
  • 9.8
  • 21 70
  • 21 69
  • 21 69
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  • 0
  • 0
  • 10
  • 20
  • 30
  • 30
  • 20
  • 5
  • 5
  • 5
  • 0
  • 0
  • 0
  • 5
  • 5
  • 5
  • 10
  • 15
  • 15
  • 10
  • 10
  • 10
  • 10
  • 15
  • 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
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 1019
  • 1020
  • 1020
  • 1019
  • 1019
  • 1019
  • 1019
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1021
  • 1021
  • 1021
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1021
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 2
  • 3
  • 5
  • 6
  • 7
  • 6
  • 5
  • 4
  • 2
  • 1
  • 0
  • 0
  • 0
  • 0
  • 26 79
  • 26 78
  • 25 76
  • 24 76
  • 24 74
  • 23 73
  • 22 72
  • 22 71
  • 22 72
  • 23 74
  • 25 77
  • 27 80
  • 27 81
  • 27 80
  • 26 80
  • 26 78
  • 26 78
  • 25 77
  • 24 76
  • 23 74
  • 22 72
  • 21 70
  • 21 69
  • 20 69
  • 27 80
  • 27 80
  • 26 79
  • 26 79
  • 26 78
  • 25 77
  • 24 76
  • 24 75
  • 25 76
  • 27 81
  • 30 87
  • 33 92
  • 34 94
  • 35 94
  • 34 93
  • 33 92
  • 33 91
  • 31 89
  • 29 83
  • 26 79
  • 24 75
  • 22 72
  • 21 70
  • 21 69
  • 9 17 3 5 11
  • 8 14 3 4 9
  • 5 9 2 3 6
  • 3 6 2 2 4
  • 1 2 1 1 1
  • 2 4 1 1 2
  • 4 8 2 2 5
  • 5 10 2 3 6
  • 5 10 2 3 6
  • 5 10 2 3 6
  • 4 7 2 2 4
  • 3 5 1 1 3
  • 5 9 2 3 6
  • 9 16 3 4 10
  • 12 22 4 6 14
  • 12 23 4 6 14
  • 13 24 4 7 15
  • 13 25 4 7 16
  • 14 26 4 7 16
  • 13 25 4 7 16
  • 12 23 4 6 14
  • 12 22 4 6 14
  • 12 23 4 6 14
  • 12 22 4 6 14
  • 0.8
  • 0.7
  • 0.6
  • 0.5
  • 0.5
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.6
  • 0.5
  • 0.6
  • 0.6
  • 0.6
  • 0.5
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Caption   Glossary

Expert opinion

An easterly and variable flow prevails over the South-East of the basin. Over the West and the North, it is southerly, moderate and very variable.

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

We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Wednesday to Thursday E force 3 weakening SE force 1 in the middle of the night then becoming S. Gusts reaching 14 knots in the early part of the night.

Smooth to slight sea becoming smooth in the middle of the night. Low, short swell from NNE then from N at the end of the night. Excellent visibility. Daytime of Thursday 13 august : The weather will be good.

Fair weather with mostly clear skies. In the evening, skies with few clouds.
W force 2 in the morning turning NW force 3 in the middle of the day. Gusts reaching 17 knots in the evening. Smooth sea becoming smooth to slight in the middle of the day. Low, short swell from N. Excellent visibility.

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
50
2
7
18.9
1020
0
06h
130
2
7
19.5
1020
0
05h
290
2
11
19.1
1020
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Cast

97
Low tide 02h58 1.33m
High tide 08h33 11.83m
100
Low tide 15h18 1.43m
High tide 20h48 12.38m
www.shom.fr - © SHOM 2026 - Local times

Go further

Wed
12
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