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
07:43
Sunrise
19:45
Sunset
Moon
Waxing Gibbous
17:25
Moonrise
01:15
Moonset
Daily Forecast
Today
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Air Quality Data Available
Upgrade to access real-time air quality data for Les Clayes-sous-Bois.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Les Clayes-sous-Bois.
View stargazing scoreWeather in Les Clayes-sous-Bois tomorrow, September 21, 2026
Les Clayes-sous-Bois looks cloudy on September 21, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Expect a grey start, with morning cloud around 100% by 04:00. Outdoor plans early on should not rely on bright skies.
The day peaks near 22°C and cools toward 10°C. The air stays humid, with relative humidity between 39% and 96% and the peak around 08:00. A lighter breeze peaks around 16:00 near 2.9 km/h.
Expect persistent cloud later on, with amounts around 100% by 12:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 29.2 km on average, though it can drop toward 6.7 km in thicker cloud or showers. Daylight runs from 07:45 to 19:43, lasting 11 hours 58 minutes of sunlight today.
The practical takeaway for Les Clayes-sous-Bois on September 21, 2026 is a cloudy day that stays usable, just not particularly bright, around 22°C.
Frequently asked questions about weather in Les Clayes-sous-Bois
How warm does it get in Les Clayes-sous-Bois?
The warmest month in Les Clayes-sous-Bois 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 Les Clayes-sous-Bois?
The coldest month in Les Clayes-sous-Bois is January, with average low temperatures of 2°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Les Clayes-sous-Bois?
The wettest month in Les Clayes-sous-Bois is October, with an average of 82mm of precipitation.
What is the driest time of year in Les Clayes-sous-Bois?
The driest month in Les Clayes-sous-Bois is August, with an average of 51mm of precipitation.
Explore more weather forecasts
- Plaisir, Île-de-France
- Paris, Île-de-France
- Bois-d'Arcy, Île-de-France
- Marseille, Provence-Alpes-Côte d'Azur
- Fontenay-le-Fleury, Île-de-France
- Lyon, Auvergne-Rhône-Alpes
- Élancourt, Île-de-France
- Toulouse, Occitanie
- Trappes, Île-de-France
- Nice, Provence-Alpes-Côte d'Azur
- Saint-Quentin-en-Yvelines, Île-de-France
- Nantes, Pays de la Loire
- Saint-Cyr-l'École, Île-de-France
- Marne La Vallée, Île-de-France
- Montigny-le-Bretonneux, Île-de-France
- Strasbourg, Grand Est
