Weather port Merrien

Moëlan-sur-Mer FRALongitude : -3°38’,802 W Latitude : 47°46’,998 N Altitude : 0m
Tue
12
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
13
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
14
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
15
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
16
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
17
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
18
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
19
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
20
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
21
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
22
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
23
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
24
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
25
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
26
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph

BULLETIN

(established in local time)
Reliability 90%
Tuesday 12 august

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
10
5
0
20
15
10
5
0
10
5
0
1
0.5
3
0
30
25
20
15
80
75
70
65
60
55
  • Wed 13
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • Wed 13
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 245° SW WSW
  • 250° W WSW
  • 240° SW WSW
  • 255° W WSW
  • 255° W WSW
  • 260° W W
  • 265° W W
  • 275° W W
  • 280° W W
  • 285° W WNW
  • 300° NW WNW
  • 315° NW NW
  • 10° N N
  • 185° S S
  • 145° SE SE
  • 225° SW SW
  • 260° W W
  • 260° W WSW
  • 250° W WSW
  • 260° W WSW
  • 245° SW WSW
  • 245° SW WSW
  • 250° W WSW
  • 250° W WSW
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 6 12 3 7 3
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 6 11 3 7 2
  • 6 12 3 7 3
  • 5 10 3 6 2
  • 4 8 2 5 2
  • 5 10 3 6 2
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 2 3 1 2 1
  • 1 1 0 1 1
  • 2 3 1 2 1
  • 3 5 1 3 1
  • 5 10 3 6 2
  • 8 14 4 9 3
  • 8 14 4 9 3
  • 8 14 4 9 3
  • 8 15 4 9 3
  • 9 17 5 11 3
  • 10 19 5 12 3
  • 11 21 6 13 4
  • 10 19 5 12 3
  • 10 18 5 11 3
  • 11 20 6 12 4
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 10 19 5 12 3
  • 10 19 5 12 -
  • 10 18 5 11 3
  • 8 15 4 9 3
  • 10 18 5 11 3
  • 10 19 5 12 3
  • 10 19 5 12 3
  • 9 17 5 11 3
  • 9 16 4 10 3
  • 9 17 5 11 3
  • 6 12 3 7 3
  • 10 18 5 11 3
  • 12 23 6 14 4
  • 13 24 7 15 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
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 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
  • 1.5
  • 1.4
  • 1.4
  • 1.4
  • 1.4
  • 1.4
  • 1.3
  • 1.3
  • 1.3
  • 1.3
  • 1.3
  • 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
  • 0.1
  • 0
  • 0
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0.1
  • 0.1
  • 0.1
  • 0.1
  • 0.2
  • 225° SW SW
  • 230° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 230° SW SW
  • 230° SW SW
  • 230° SW SW
  • 230° SW SW
  • 230° SW SW
  • 230° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW SW
  • 235° SW WSW
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 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
  • 7
  • 7
  • 6
  • 6
  • 7
  • 8
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 8
  • 8
  • 8
  • 8
  • 8
  • 8
  • 130
  • 130
  • 130
  • 140
  • 140
  • 140
  • 140
  • 140
  • 130
  • 130
  • 130
  • 130
  • 120
  • 120
  • 120
  • 120
  • 120
  • 120
  • 120
  • 120
  • 120
  • 120
  • 110
  • 110
  • 4.4
  • 5.0
  • 5.1
  • 4.7
  • 3.9
  • 2.8
  • 1.8
  • 1.1
  • 0.8
  • 1.1
  • 1.8
  • 2.8
  • 3.8
  • 4.6
  • 4.8
  • 4.6
  • 3.9
  • 3.0
  • 2.1
  • 1.3
  • 1.0
  • 1.1
  • 1.7
  • 2.6
  • 19 65
  • 19 65
  • 19 65
  • 19 65
  • 19 65
  • 18 65
  • 18 65
  • 18 65
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 65
  • 18 65
  • 18 65
  • 19 65
  • 19 65
  • 100
  • 100
  • 10
  • 5
  • 20
  • 20
  • 40
  • 85
  • 90
  • 90
  • 100
  • 100
  • 100
  • 100
  • 100
  • 95
  • 85
  • 90
  • 90
  • 45
  • 30
  • 30
  • 10
  • 5
  • 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
  • 0
  • 0
  • 0
  • 0
  • 0
  • 15
  • 10
  • 5
  • 5
  • 4
  • 5
  • 5
  • 5
  • 4
  • 4
  • 4
  • 5
  • 5
  • 5
  • 5
  • 5
  • 10
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 1015
  • 1014
  • 1014
  • 1014
  • 1014
  • 1015
  • 1015
  • 1015
  • 1015
  • 1015
  • 1014
  • 1014
  • 1014
  • 1014
  • 1015
  • 1015
  • 1015
  • 1015
  • 1016
  • 1016
  • 1016
  • 1016
  • 1016
  • 1016
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 1
  • 2
  • 4
  • 5
  • 5
  • 4
  • 3
  • 21 70
  • 20 69
  • 20 68
  • 19 67
  • 18 65
  • 18 65
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 18 64
  • 17 63
  • 18 64
  • 18 65
  • 19 66
  • 19 67
  • 20 68
  • 20 68
  • 21 69
  • 21 69
  • 21 69
  • 21 69
  • 22 72
  • 22 71
  • 19 66
  • 17 63
  • 16 61
  • 16 60
  • 16 60
  • 16 60
  • 16 61
  • 16 60
  • 16 60
  • 16 61
  • 17 62
  • 17 63
  • 17 63
  • 18 64
  • 18 64
  • 18 64
  • 20 68
  • 25 77
  • 24 75
  • 25 77
  • 25 77
  • 25 77
  • 5 10 2 3 6
  • 5 10 2 3 6
  • 7 13 3 4 8
  • 8 14 3 4 9
  • 8 14 3 4 9
  • 9 17 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 11 2 3 7
  • 3 6 2 2 4
  • 2 3 1 1 2
  • 3 5 1 1 3
  • 2 3 1 1 2
  • 5 10 2 3 6
  • 5 10 2 3 6
  • 6 11 2 3 7
  • 6 12 3 3 7
  • 7 13 3 4 8
  • 9 16 3 4 10
  • 11 20 4 6 12
  • 12 23 4 6 14
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.8
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Last updated 2h ago | Next update in 1h
Caption

Expert opinion

Low 1009 hPa centered at 300 nautical miles in the West-South-West of Fastnet Rock (South-West Ireland) moving at 9 knots to the East-North-East.

For Merrien :
No gale warning.

We are 90% sure of the situation, because the cloud system could clear up more slowly than forecast.

Very cloudy. No precipitation. In the evening, very cloudy skies clearing completely.
No precipitation. SW wind force 3 from the middle of the day. Gusts reaching 11 knots in the middle of the day. Slight sea. Low, short swell from SW. Excellent visibility becoming reduced by mist in the evening.

Tides at Merrien

95
Low tide 01h22 0.77m
High tide 07h22 4.88m
95
Low tide 13h37 0.87m
High tide 19h41 5.14m
© METEOCONSULT 2025
Tue
12
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
13
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
14
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
15
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
16
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
17
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
18
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
19
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
20
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
21
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
22
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
23
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
24
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
25
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
26
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
* +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