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Hourly Forecast
Daylight Hours
07:41
Sunrise
19:43
Sunset
Moon
Waxing Gibbous
17:25
Moonrise
01:11
Moonset
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View stargazing scoreWeather in Chantilly today, September 20, 2026
Chantilly looks cloudy on September 20, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward.
The temperature range runs from about 13°C up to 22°C. Moisture in the air spans 56%-86%, with the highest values around 23:00. Airflow remains manageable, reaching about 3.8 km/h around 19:00.
Afternoon skies stay clogged, peaking close to 100% near 20:00. The grey theme continues rather than clearing out. Visibility holds near 37.7 km, though it can fall to 30.0 km. Daylight runs from 07:41 to 19:43, lasting 12 hours 1 minutes of sunlight today.
In short, cloud leads the story in Chantilly on September 20, 2026; expect limited sun and a peak around 22°C.
Frequently asked questions about weather in Chantilly
How warm does it get in Chantilly?
The warmest month in Chantilly 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 Chantilly?
The coldest month in Chantilly 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 Chantilly?
The wettest month in Chantilly is October, with an average of 80mm of precipitation.
What is the driest time of year in Chantilly?
The driest month in Chantilly is July, with an average of 50mm of precipitation.
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