The best times to visit Boissy-Saint-Leger for ideal weather are

May 7th to October 14th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Boissy-Saint-Leger Travel Info

Weather in Boissy-Saint-Leger


Average temperatures in Boissy-Saint-Leger 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 37th 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 Boissy-Saint-Leger, 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 80.2°F (26.8°C) with temperatures rarely dropping below 58.8°F (14.9°C) at night.

Boissy-Saint-Leger Temperatures (Fahrenheit)


Boissy-Saint-Leger Temperatures (Celsius)


“Feels-Like” Temperatures

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.

Boissy-Saint-Leger Perceived Temperature (F)


Boissy-Saint-Leger Perceived Temperature (C)



Average Boissy-Saint-Leger 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.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 45.6 40.2 34.6
Feb 47.4 40.6 34.2
Mar 55 46.1 37.7
Apr 63.5 53.4 43.3
May 68.1 58.4 49.1
Jun 73.8 64.1 54.6
Jul 78.4 67.7 57.8
Aug 77.4 66.7 56.9
Sep 70.5 60.5 51.3
Oct 62 53.9 46.4
Nov 52.9 47 41.1
Dec 46.4 40.9 35.3

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 7.6 4.6 1.4
Feb 8.6 4.8 1.2
Mar 12.8 7.8 3.2
Apr 17.5 11.9 6.3
May 20.1 14.7 9.5
Jun 23.2 17.8 12.6
Jul 25.8 19.8 14.3
Aug 25.2 19.3 13.8
Sep 21.4 15.8 10.7
Oct 16.7 12.2 8
Nov 11.6 8.3 5.1
Dec 8 4.9 1.8



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Boissy-Saint-Leger are April, September, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid April. For example, on the week of April 16th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early December with an average of 2 days of significant precipitation the week of December 3rd.

When can you find snow in Boissy-Saint-Leger? Weather stations report moderate or seasonal snow likely to be deepest around March, especially close to mid January. The best time to ski (if at all) in Boissy-Saint-Leger is often around around March 12th 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 Boissy-Saint-Leger.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Boissy-Saint-Leger (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 18% 1.5 1.7
Feb 22% 0.5 1.7
Mar 18% 2 1.3
Apr 14% 0.4 1.3
May 22% 0 2.4
Jun 22% 0 2.7
Jul 17% 0 2.4
Aug 20% 0 2.8
Sep 14% 0 1.5
Oct 17% 0 1.9
Nov 20% 0.4 2.1
Dec 23% 1.1 2.3

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 18 3.8 4.3
Feb 22 1.3 4.3
Mar 18 5.1 3.3
Apr 14 1 3.3
May 22 0 6.1
Jun 22 0 6.9
Jul 17 0 6.1
Aug 20 0 7.1
Sep 14 0 3.8
Oct 17 0 4.8
Nov 20 1 5.3
Dec 23 2.8 5.8


Humidity and Wind

Boissy-Saint-Leger has some extremely humid months, with other comfortably humid months. The least humid month is July (55.9% relative humidity), and the most humid month is November (82.1%).

Wind in Boissy-Saint-Leger is usually calm. The windiest month is March, followed by December and January. March’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 14.1 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Boissy-Saint-Leger.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

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 7.3 Gentle breeze 12.1 Significant breeze
Feb 7.3 Gentle breeze 12.5 Significant breeze
Mar 7.4 Gentle breeze 12.8 Significant breeze
Apr 6.8 Light breeze 12 Significant breeze
May 7 Gentle breeze 12.3 Significant breeze
Jun 7.1 Gentle breeze 12.3 Significant breeze
Jul 6.8 Light breeze 12.2 Significant breeze
Aug 6.2 Light breeze 11.5 Significant breeze
Sep 6.1 Light breeze 10.9 Significant breeze
Oct 5.8 Light breeze 10.6 Gentle breeze
Nov 6.6 Light breeze 11.4 Significant breeze
Dec 7.3 Gentle breeze 12.3 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 80.4%
Feb 74.4%
Mar 62.8%
Apr 56.5%
May 60.1%
Jun 59.1%
Jul 55.9%
Aug 58.4%
Sep 64.6%
Oct 75.3%
Nov 82.1%
Dec 81.8%


Is it Safe to Travel to Boissy-Saint-Leger?

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 Boissy-Saint-Leger, 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 Boissy-Saint-Leger 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

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 63.8 in December means 63.8% of the tourists vs. June.



Overall Boissy-Saint-Leger Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 71.3°F (21.8°C) and 51.3°F (10.7°C) with warmer temperatures in the later months. Rain is somewhat common with 4 to 7 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 very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 5 to 7 days of precipitation per month. June – August is the second busiest season for tourism in Boissy-Saint-Leger, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 72.9°F (22.7°C) and 47°F (8.3°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 4 to 6 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 Boissy-Saint-Leger to be enjoyable for warm weather travelers. The average high during this season is between 51.3°F (10.7°C) and 43.2°F (6.2°C). On average, it rains or snows a fair amount: 6 to 7 times per month. These times of year are the slowest with tourists.


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