Weather port Saint-Nazaire

Saint-Nazaire FRALon : -2°12’,198 W Lat : 47°16’,002 N Alt : 0m
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Wed
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BULLETIN

Reliability 90%
Thursday 21 may Thursday 21 may
METEO CONSULT Run : 20/05 00Z Mesh : 1km Updated, 7h ago Update imminent

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)
15
10
5
0
30
20
10
0
10
5
0
15
10
5
0
5
0
1
0.5
0
3
0
40
30
20
10
0
90
80
70
60
50
40
  • Fri 22
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
Run : 20/05 00Z Mesh : 1km Updated, 7h ago Update imminent
  • Fri 22
  • 01h
  • 02h
  • 03h
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 50° NE NE
  • 55° NE ENE
  • 30° NE NNE
  • 70° E ENE
  • 80° E E
  • 85° E E
  • 70° E ENE
  • 70° E ENE
  • 80° E E
  • 85° E E
  • 95° E E
  • 110° E ESE
  • 135° SE SE
  • 140° SE SE
  • 130° SE SE
  • 115° SE ESE
  • 110° E ESE
  • 120° SE ESE
  • 130° SE SE
  • 140° SE SE
  • 90° E E
  • 105° E ESE
  • 80° E E
  • 90° E E
  • 1 2 1 1 1
  • 2 3 1 2 1
  • 1 2 1 1 1
  • 2 4 1 2 1
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 4 7 2 4 2
  • 5 9 3 6 2
  • 5 10 3 6 2
  • 5 9 3 6 2
  • 5 9 3 6 2
  • 4 7 2 4 2
  • 3 6 2 4 2
  • 3 6 2 4 2
  • 4 7 2 4 2
  • 4 8 2 5 2
  • 4 8 2 5 2
  • 3 5 1 3 1
  • 1 2 1 1 1
  • 1 2 1 1 1
  • 2 3 1 2 1
  • 3 5 1 3 1
  • 3 6 2 4 2
  • 3 5 1 3 1
  • 3 5 1 3 1
  • 2 3 1 2 1
  • 3 6 2 4 2
  • 6 11 3 7 2
  • 6 12 3 7 3
  • 6 12 3 7 3
  • 8 14 4 9 3
  • 10 18 5 11 3
  • 11 21 6 13 4
  • 12 22 6 14 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 10 19 5 12 3
  • 10 19 5 12 3
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 11 21 6 13 4
  • 10 18 5 11 3
  • 7 13 4 8 3
  • 6 11 3 7 2
  • 6 11 3 7 2
  • 5 10 3 6 2
  • 7 13 4 8 3
  • 0.5
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 220° SW SW
  • 215° SW SW
  • 225° SW SW
  • 230° SW SW
  • 225° SW SW
  • 235° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 235° SW SW
  • 225° SW SW
  • 225° SW SW
  • 235° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 225° SW SW
  • 0.5
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.4
  • 0.4
  • 0.4
  • 0.4
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.2
  • 10
  • 10
  • 10
  • 10
  • 9
  • 10
  • 9
  • 10
  • 10
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 8
  • 8
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  • 9
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  • 8
  • 8
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  • 220
  • 210
  • 180
  • 160
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  • 180
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  • 170
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  • 150
  • 140
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  • 120
  • 130
  • 140
  • 140
  • 150
  • 150
  • 150
  • 2.0
  • 1.4
  • 1.1
  • 1.4
  • 2.3
  • 3.4
  • 4.4
  • 5.1
  • 5.1
  • 4.7
  • 4.1
  • 3.3
  • 2.5
  • 1.9
  • 1.6
  • 1.7
  • 2.3
  • 3.4
  • 4.4
  • 5.1
  • 5.3
  • 5.0
  • 4.4
  • 3.7
  • 16 60
  • 15 60
  • 15 59
  • 15 59
  • 15 59
  • 15 59
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  • 16 60
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  • 16 61
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  • 16 60
  • 16 60
  • 0
  • 0
  • 35
  • 75
  • 80
  • 80
  • 85
  • 75
  • 65
  • 60
  • 10
  • 0
  • 5
  • 5
  • 10
  • 10
  • 10
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 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
  • 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
  • 4
  • 3
  • 2
  • 0.5
  • 0.5
  • 0.5
  • 2
  • 5
  • 15
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • >20
  • 1027
  • 1027
  • 1027
  • 1027
  • 1027
  • 1027
  • 1027
  • 1027
  • 1027
  • 1026
  • 1026
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  • 1025
  • 1025
  • 1024
  • 1024
  • 1023
  • 1023
  • 1023
  • 1023
  • 1023
  • 1023
  • 1023
  • 1023
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 2
  • 4
  • 6
  • 7
  • 8
  • 7
  • 6
  • 4
  • 3
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 12 53
  • 11 53
  • 11 51
  • 11 51
  • 11 51
  • 10 50
  • 10 50
  • 10 51
  • 12 54
  • 14 58
  • 17 63
  • 20 67
  • 21 70
  • 22 72
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  • 24 76
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  • 23 74
  • 22 71
  • 20 68
  • 19 65
  • 18 64
  • 11 52
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  • 10 49
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  • 10 49
  • 12 53
  • 16 60
  • 20 69
  • 24 76
  • 30 85
  • 31 88
  • 30 85
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  • 28 82
  • 27 81
  • 28 82
  • 25 77
  • 19 67
  • 18 64
  • 17 62
  • 3 5 1 1 3
  • 4 7 2 2 4
  • 4 7 2 2 4
  • 5 9 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
  • 10 19 3 5 12
  • 9 17 3 5 11
  • 9 17 3 5 11
  • 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
  • 5 9 2 3 6
  • 4 7 2 2 4
  • 4 7 2 2 4
  • 4 8 2 2 5
  • 4 8 2 2 5
  • 5 10 2 3 6
  • 5 9 2 3 6
  • 0.9
  • 0.9
  • 0.9
  • 0.8
  • 0.8
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.7
  • 0.6
  • 0.6
  • 0.6
  • 0.6
  • 0.5
  • 0.5
  • 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 southerly, moderate and very variable flow prevails over the whole area.

For Saint-Nazaire :
No gale warning.

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

Fair weather with mostly clear skies. In the evening, clear skies.
E wind force 2 continuing all day. Gusts reaching 12 knots in the morning. Smooth to slight sea. Low, fairly long swell from SW. Visibility reduced by fog becoming excellent in the middle of the day.

semaphore stations

Station St Nazaire-Montoir located 6 km from Saint-Nazaire
WIND
WEATHER
Local time Dir.
(°)
Speed
(nd)
Gust
(nd)
Temp.
(°C)
Pressure
(hPa)
Visibility
(M)
00h
0
0
4
12.1
1027
7
23h
220
5
8
12.9
1028
8
22h
230
4
14
14.4
1027
8
observation.semaphores_link
Météo France - RADOME
observation.semaphore_link

Tides at Saint-Nazaire

76
Low tide 03h03 1.12m
High tide 08h30 5.15m
70
Low tide 15h22 1.53m
High tide 20h44 5.29m
www.shom.fr - © SHOM 2026 - Local times

Go further

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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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