Weather port Saint-Nazaire

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

Reliability 65%
Thursday 16 july Thursday 16 jul
METEO CONSULT Run : 15/07 18Z Mesh : 1km Updated, 3h ago Update in 10min

Wind

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

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)
30
20
10
0
50
40
30
20
10
0
15
10
5
0
30
20
10
0
10
5
0
0.5
0
3
0
40
30
20
10
110
100
90
80
70
60
  • Fri 17
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  • 00h
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Run : 15/07 18Z Mesh : 1km Updated, 3h ago Update in 10min
  • Fri 17
  • 03h
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  • 60° NE ENE
  • 55° NE NE
  • 45° NE NE
  • 35° NE NE
  • 40° NE NE
  • 55° NE NE
  • 60° NE ENE
  • 50° NE NE
  • 30° NE NNE
  • 40° NE NE
  • 50° NE NE
  • 295° NW WNW
  • 300° NW WNW
  • 320° NW NW
  • 340° N NNW
  • 5° N N
  • 305° NW NW
  • 360° N N
  • 35° NE NE
  • 25° NE NNE
  • 15° N NNE
  • 350° N N
  • 345° N NNW
  • 345° N NNW
  • 5 9 3 6 2
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  • 5 10 3 6 2
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  • 3 5 1 3 1
  • 7 13 4 8 3
  • 5 9 3 6 2
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  • 4 7 2 4 2
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  • 3 6 2 4 2
  • 8 14 4 9 3
  • 8 14 4 9 3
  • 7 13 4 8 3
  • 7 13 4 8 3
  • 8 14 4 9 3
  • 8 15 4 9 3
  • 9 16 4 10 3
  • 10 18 5 11 3
  • 12 22 6 14 4
  • 11 20 6 12 4
  • 10 18 5 11 3
  • 14 26 7 16 4
  • 17 32 9 20 5
  • 16 30 8 19 5
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  • 25 46 13 29 6
  • 17 32 9 20 5
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  • 9 17 5 11 3
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  • >40 >70 >21 >45 >8
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  • >35 >70 >20 >40 >8
  • >35 >70 >19 >40 >8
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  • >40 >75 >21 >45 >9
  • >40 >75 >22 >45 >9
  • >40 >80 >22 >50 >9
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  • 0.1
  • 0.1
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  • 0.1
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  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
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  • 0
  • 0
  • 0
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  • 0
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  • 0
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  • 0
  • 0
  • 0
  • 220° SW SW
  • 220° SW SW
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  • 225° SW SW
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  • 230° SW SW
  • 225° SW SW
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  • 225° SW SW
  • 195° S SSW
  • 220° SW SW
  • 235° SW SW
  • 235° SW SW
  • 230° SW SW
  • 230° SW SW
  • 240° SW WSW
  • 230° SW SW
  • 225° SW SW
  • 225° SW SW
  • 220° SW SW
  • 230° SW SW
  • 215° SW SW
  • 0.1
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  • 2.0
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  • 4 8 2 2 5
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  • 0.2
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  • 0.2
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Caption   Glossary

Expert opinion

A northeasterly, weak and variable flow prevails over the whole area.

For Saint-Nazaire :
No gale warning.

We are 65% sure of the situation, because the high pressure system could move in more quickly than forecast.

Skies changeable with risk of thundery outbreaks developing. Risk of some spots of rain in the morning, possibility of showers in the afternoon. In the evening, changeable skies with risk of storms.
Possibility of showers NE force 2 turning NW in the middle of the day then N force 3. Gusts reaching 25 knots in the evening. Smooth sea. Low, short swell from SW. Good visibility 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)
03h
60
8
11
20.4
1018
0
02h
60
9
15
20.2
1018
11
01h
30
8
17
22.3
1018
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Saint-Nazaire

98
Low tide 00h58 0.56m
High tide 06h49 5.71m
98
Low tide 13h13 0.75m
High tide 18h58 5.97m
www.shom.fr - © SHOM 2026 - Local times

Go further

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