The best times to visit Chantilly for ideal weather are
May 21st to October 7th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Chantilly Travel Guide
Other Chantilly Travel Info
Weather in Chantilly
Average temperatures in Chantilly vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 34th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Chantilly, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 78.8°F (26°C) with temperatures rarely dropping below 55.3°F (12.9°C) at night.
Chantilly Temperatures (Fahrenheit)
Chantilly Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Chantilly Perceived Temperature (F)
Chantilly Perceived Temperature (C)
Average Chantilly Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Chantilly are September, April, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late August to early September. For example, on the week of August 27th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early December with an average of 3 days of significant precipitation the week of December 3rd.
When can you find snow in Chantilly? Weather stations report moderate or seasonal snow likely to be deepest around December, especially close to mid December. The best time to ski (if at all) in Chantilly is often around around December 17th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Chantilly.
Snow on the Ground
The graph below shows the average snow on the ground in Chantilly (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Chantilly has some extremely humid months, and above average humidity throughout the year. The least humid month is April (60.6% relative humidity), and the most humid month is November (85%).
Wind in Chantilly is usually calm. The windiest month is January, followed by December and February. January’s average wind speed of around 7.4 knots (8.5 MPH or 13.7 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late February and early March where average top sustained speeds reach 14.3 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Chantilly.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||7.4||Gentle breeze||12.7||Significant breeze|
|Feb||7||Gentle breeze||12.3||Significant breeze|
|Mar||7||Gentle breeze||12.6||Significant breeze|
|Apr||6.2||Light breeze||11.8||Significant breeze|
|May||6.3||Light breeze||11.9||Significant breeze|
|Jun||6.2||Light breeze||11.8||Significant breeze|
|Jul||6.2||Light breeze||11.9||Significant breeze|
|Aug||5.7||Light breeze||11.4||Significant breeze|
|Sep||5.3||Light breeze||10.8||Significant breeze|
|Oct||5.6||Light breeze||10.6||Gentle breeze|
|Nov||6.8||Light breeze||11.7||Significant breeze|
|Dec||7.4||Gentle breeze||12.6||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Chantilly?
Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for France; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 24, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Chantilly, France is June, followed by May and January. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Chantilly in December. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Chantilly Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 69.5°F (20.8°C) and 50.3°F (10.2°C) with warmer temperatures in the later months. Rain is somewhat common with 4 to 6 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see moderate precipitation with 5 to 6 days of precipitation per month. June – August is the second busiest season for tourism in Chantilly, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 71.8°F (22.1°C) and 46.6°F (8.1°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 4 to 7 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is too cold this time of year in Chantilly to be enjoyable for warm weather travelers. The average high during this season is between 50.3°F (10.2°C) and 42.4°F (5.8°C). On average, it rains or snows a fair amount: 7 to 8 times per month. These times of year are the slowest with tourists.