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19°
Overcast
Feels Like: 18°
Min: 16°
Max: 22°
The next few hours will be partly cloudy, with tomorrow reaching 25°C and dropping to 15°C. The coming days will be mostly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
08:00
Sunrise
20:02
Sunset
Moon
Waxing Gibbous
17:34
Moonrise
01:41
Moonset
Daily Forecast
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View stargazing scoreWeather in Saint-Nazaire tomorrow, September 21, 2026
Misty spells are likely in Saint-Nazaire on September 21, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive. Cloud leads the morning, peaking close to 100% near 00:00. Sunshine has little room until later in the day.
The temperature range runs from about 16°C up to 25°C. Expect humidity between 40% and 95%, most humid near 06:00. A lighter breeze peaks around 18:00 near 4.0 km/h.
Afternoon conditions open up, holding cloud close to 15% near 12:00. The day finishes on a milder, brighter note. Visibility stays generally good near 24.1 km on average, though it can drop toward 1.5 km in thicker cloud or showers. Daylight runs from 08:02 to 20:00, lasting 11 hours 58 minutes of sunlight today.
The practical takeaway for Saint-Nazaire on September 21, 2026 is reduced clarity at times, so plan journeys with care near 25°C.
Frequently asked questions about weather in Saint-Nazaire
How warm does it get in Saint-Nazaire?
The warmest month in Saint-Nazaire is August, with average high temperatures of 23°C. The average temperature during this period is around 20°C.
How cold does it get in Saint-Nazaire?
The coldest month in Saint-Nazaire is January, with average low temperatures of 5°C. The average temperature during this period is around 7°C.
What is the wettest time of year in Saint-Nazaire?
The wettest month in Saint-Nazaire is November, with an average of 90mm of precipitation.
What is the driest time of year in Saint-Nazaire?
The driest month in Saint-Nazaire is August, with an average of 38mm of precipitation.
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