See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:53
Sunrise
19:36
Sunset
Moon
Waxing Gibbous
19:07
Moonrise
06:09
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Chartres.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Chartres.
View stargazing scoreWeather in Chartres today, September 25, 2026
Conditions in Chartres on September 25, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. The morning looks comparatively open, with cloud near 2% around 11:00. Early outdoor plans have a better chance of staying dry and bright.
The day peaks near 29°C and cools toward 12°C. Expect humidity between 29% and 87%, most humid near 08:00. A lighter breeze peaks around 23:00 near 3.5 km/h.
Through the afternoon skies look more workable, with cloud near 0% around 12:00. Later outdoor plans have a clearer window than the morning may have suggested. Horizontal visibility sits around 38.9 km, briefly nearer 18.8 km. The sun rises at 07:53 and sets at 19:36, for a total of 11 hours 43 minutes of sunlight today.
The practical takeaway for Chartres is a bright September 25, 2026, ideal for outdoor errands before temperatures ease from about 29°C.
Frequently asked questions about weather in Chartres
How warm does it get in Chartres?
The warmest month in Chartres is July, with average high temperatures of 25°C. The average temperature during this period is around 20°C.
How cold does it get in Chartres?
The coldest month in Chartres is January, with average low temperatures of 2°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Chartres?
The wettest month in Chartres is October, with an average of 78mm of precipitation.
What is the driest time of year in Chartres?
The driest month in Chartres is July, with an average of 42mm of precipitation.
Explore more weather forecasts
- Lucé, Centre-Val de Loire
- Paris, Île-de-France
- Mainvilliers, Centre-Val de Loire
- Marseille, Provence-Alpes-Côte d'Azur
- Vernouillet, Centre-Val de Loire
- Lyon, Auvergne-Rhône-Alpes
- Dreux, Centre-Val de Loire
- Toulouse, Occitanie
- Châteaudun, Centre-Val de Loire
- Nice, Provence-Alpes-Côte d'Azur
- Nogent-le-Rotrou, Centre-Val de Loire
- Nantes, Pays de la Loire
- Saran, Centre-Val de Loire
- Marne La Vallée, Île-de-France
- Fleury-les-Aubrais, Centre-Val de Loire
- Strasbourg, Grand Est