Chantilly weather
Our guide to the weather in Chantilly during September
We've looked at the most up-to-date weather data for Chantilly, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Chantilly weather in September.
How warm is it in Chantilly during September?
The temperature reaches around 21℃ during the daytime in September, falling away to 12℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Chantilly during September?
September is typically the driest month in Chantilly. On average, there will be 4 rainy days during the month, amounting to 57.1mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Chantilly during September?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. With moderate air temperatures, any breeze will feel cool.
Weather in Chantilly
Our month-by-month guide to the weather and climate in Chantilly
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