See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
23°
Overcast
Feels Like: 19°
Min: 20°
Max: 25°
The next few hours will be overcast, with today reaching 25°C and dropping to 18°C. The coming days will be breezy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:45
Sunrise
19:15
Sunset
Moon
Waning Gibbous
21:04
Moonrise
12:15
Moonset
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View stargazing scoreWeather in Saint-Nazaire today, September 30, 2026
Rain features in Saint-Nazaire on September 30, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. The morning carries the wetter risk, with rain chances near 100% and the highest odds around 10:00. Cloud is also thick early on, peaking near 95% around 10:00.
The day peaks near 25°C and cools toward 20°C. The air stays humid, with relative humidity between 57% and 90% and the peak around 22:00. Airflow remains manageable, reaching about 8.1 km/h around 13:00.
Expect the wet theme to continue later, as rain odds reach 100% near 12:00. Cloud amounts hold near 100% around 12:00. Horizontal visibility sits around 30.4 km, briefly nearer 21.6 km. The sun rises at 07:45 and sets at 19:15, for a total of 11 hours 30 minutes of sunlight today.
Overall, Saint-Nazaire on September 30, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 100% and the high sits around 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 July, with average high temperatures of 32°C. The average temperature during this period is around 26°C.
How cold does it get in Saint-Nazaire?
The coldest month in Saint-Nazaire is January, with average low temperatures of 3°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 October, with an average of 147mm of precipitation.
What is the driest time of year in Saint-Nazaire?
The driest month in Saint-Nazaire is July, with an average of 37mm of precipitation.
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