Weather port Merrien

Moëlan-sur-Mer FRALongitude : -3°38’,802 W Latitude : 47°46’,998 N Altitude : 0m
Wed
16
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Thu
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Fri
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Sat
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Sun
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Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
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Mon
28
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Tue
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Wed
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BULLETIN

(established in local time)
Reliability 85%
Wednesday 16 july

Wind

Average winds
Gusts
10m above ground level:
Direction
Speed
Gusts

Waves

Total sea (m) (m)
Swell height (m) (m)
Total sea (m)
Total wave height (m)
Wind (m)
Swell direction
Swell height (m)
Swell period (s)
Wave length (m)
High tide (m)
Sea temp

Weather

Rain (mm) (mm)
Cloud cover(%)
Amount of precipitation(mm)
Type of precipitation
Precipitation risk(%)
Visibility(km)
Pressure(hPa)
UV

Temperature

Air temp
Perceived temp
Air temp
Perceived temp

Offshore

Offshore wind
Offshore sea (m)
20
15
10
5
0
40
30
20
10
0
15
10
5
0
30
20
10
0
10
5
0
1
0.5
3
0
30
25
20
15
10
90
80
70
60
50
  • Thu 17
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • Thu 17
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 260° W WSW
  • 260° W W
  • 260° W WSW
  • 260° W W
  • 265° W W
  • 270° W W
  • 285° W WNW
  • 290° W WNW
  • 300° NW WNW
  • 305° NW NW
  • 315° NW NW
  • 315° NW NW
  • 320° NW NW
  • 330° NW NNW
  • 335° NW NNW
  • 360° N N
  • 5° N N
  • 175° S S
  • 200° S SSW
  • 215° SW SW
  • 230° SW SW
  • 240° SW WSW
  • 245° SW WSW
  • 250° W WSW
  • 10 18 5 11 3
  • 10 19 5 12 3
  • 12 23 6 14 4
  • 11 21 6 13 4
  • 10 18 5 11 3
  • 8 14 4 9 3
  • 6 12 3 7 3
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 4 8 2 5 2
  • 4 7 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 2 4 1 2 1
  • 2 4 1 2 1
  • 2 4 1 2 1
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 2 4 1 2 1
  • 4 8 2 5 2
  • 5 10 3 6 2
  • 7 13 4 8 3
  • 8 15 4 9 3
  • 9 17 5 11 3
  • 16 30 8 19 5
  • 17 31 9 19 5
  • 19 36 10 22 5
  • 18 34 9 21 5
  • 16 30 8 19 5
  • 14 26 7 16 4
  • 12 22 6 14 4
  • 11 20 6 12 4
  • 9 17 5 11 3
  • 8 15 4 9 3
  • 8 14 4 9 3
  • 6 12 3 7 3
  • 5 10 3 6 -
  • 6 11 3 7 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 6 12 3 7 3
  • 8 15 4 9 3
  • 9 17 5 11 3
  • 11 20 6 12 4
  • 12 23 6 14 4
  • 14 26 7 16 4
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 1.5
  • 1.5
  • 1.4
  • 1.4
  • 1.3
  • 1.3
  • 1.2
  • 1.2
  • 1.2
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.1
  • 1.2
  • 1.2
  • 1.2
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.2
  • 0.1
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 225° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 235° SW SW
  • 235° SW SW
  • 235° SW WSW
  • 235° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 240° SW WSW
  • 235° SW WSW
  • 235° SW WSW
  • 235° SW WSW
  • 235° SW WSW
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.6
  • 0.6
  • 6
  • 7
  • 7
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 7
  • 7
  • 7
  • 7
  • 7
  • 7
  • 7
  • 7
  • 8
  • 8
  • 8
  • 8
  • 8
  • 8
  • 70
  • 70
  • 60
  • 60
  • 60
  • 70
  • 70
  • 70
  • 70
  • 70
  • 80
  • 80
  • 90
  • 90
  • 90
  • 90
  • 100
  • 100
  • 100
  • 110
  • 110
  • 110
  • 110
  • 100
  • 1.9
  • 2.6
  • 3.4
  • 4.1
  • 4.6
  • 4.6
  • 4.2
  • 3.5
  • 2.7
  • 2.0
  • 1.5
  • 1.3
  • 1.6
  • 2.1
  • 2.9
  • 3.6
  • 4.1
  • 4.3
  • 4.1
  • 3.6
  • 2.9
  • 2.3
  • 1.8
  • 1.5
  • 17 63
  • 17 63
  • 17 63
  • 17 63
  • 17 63
  • 17 63
  • 17 63
  • 17 63
  • 17 63
  • 17 63
  • 17 62
  • 17 62
  • 17 62
  • 17 62
  • 17 62
  • 17 62
  • 17 62
  • 17 62
  • 17 62
  • 17 63
  • 17 63
  • 17 63
  • 18 64
  • 18 64
  • 35
  • 5
  • 75
  • 75
  • 70
  • 70
  • 70
  • 65
  • 65
  • 75
  • 80
  • 90
  • 95
  • 95
  • 95
  • 95
  • 95
  • 90
  • 90
  • 90
  • 85
  • 85
  • 45
  • 60
  • 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
  • 10
  • 5
  • 5
  • 4
  • 3
  • 2
  • 2
  • 2
  • 3
  • 4
  • 5
  • 5
  • 10
  • 10
  • 15
  • >20
  • >20
  • >20
  • 1021
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1020
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1019
  • 1018
  • 1018
  • 3
  • 1
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 2
  • 2
  • 3
  • 3
  • 7
  • 5
  • 21 70
  • 21 69
  • 20 68
  • 20 68
  • 20 67
  • 19 66
  • 18 65
  • 18 64
  • 17 63
  • 17 62
  • 16 62
  • 16 61
  • 16 61
  • 16 62
  • 16 62
  • 17 62
  • 17 63
  • 18 65
  • 19 66
  • 20 67
  • 20 68
  • 20 68
  • 20 69
  • 21 69
  • 28 82
  • 25 77
  • 22 71
  • 18 64
  • 17 62
  • 16 61
  • 16 61
  • 16 60
  • 15 60
  • 15 59
  • 15 59
  • 15 59
  • 15 59
  • 15 60
  • 16 60
  • 16 60
  • 17 63
  • 18 65
  • 19 66
  • 22 71
  • 22 72
  • 26 79
  • 26 79
  • 26 80
  • 10 19 3 5 12
  • 11 21 4 6 13
  • 12 23 4 6 14
  • 12 23 4 6 14
  • 12 22 4 6 14
  • 11 21 4 6 13
  • 10 19 3 5 12
  • 9 17 3 5 11
  • 9 16 3 4 10
  • 8 14 3 4 9
  • 7 13 3 4 8
  • 5 10 2 3 6
  • 5 10 2 3 6
  • 4 8 2 2 5
  • 3 6 2 2 4
  • 3 5 1 1 3
  • 2 3 1 1 2
  • 2 3 1 1 2
  • 2 3 1 1 2
  • 3 6 2 2 4
  • 5 9 2 3 6
  • 6 11 2 3 7
  • 7 13 3 4 8
  • 8 15 3 4 9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.7
  • 0.7
  • 0.7
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Last updated 1h ago | Next update in 2h
Caption

Expert opinion

High 1024 hPa centered on the South-East of the Bay of Biscay moving at 5 knots to the West-North-West and weakening to 1021 hPa to be centered at 100 nautical miles in the South-West of the Île de Sein.

For Merrien :
No gale warning.

We are 85% sure of the situation, because the atmosphere might not be as stable as forecast.

Cloud and long sunny periods. No precipitation. In the evening, good clear periods but cloud building.
No precipitation. WSW force 3 in the middle of the day becoming W force 4 in the evening. Gusts reaching 19 knots in the evening. Slight sea. Low, short swell from SW. Excellent visibility becoming good in the evening.

Tides at Merrien

76
Low tide 03h07 1.17m
High tide 09h05 4.43m
72
Low tide 15h25 1.35m
High tide 21h33 4.63m
© METEOCONSULT 2025
Wed
16
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Fri
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Sat
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Sun
20
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Mon
21
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Tue
22
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Wed
23
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Thu
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Fri
25
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Sat
26
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Sun
27
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Mon
28
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Tue
29
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Wed
30
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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
English
For your navigation, consult the METEO CONSULT 1km mesh model