The best times to visit Trappes for ideal weather are

May 7th 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.



Other Trappes Travel Info

Weather in Trappes


Average temperatures in Trappes vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 35th 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 Trappes, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 78.3°F (25.7°C) with temperatures rarely dropping below 56.9°F (13.8°C) at night.

Trappes Temperatures (Fahrenheit)


Trappes 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.

Trappes Perceived Temperature (F)


Trappes Perceived Temperature (C)



Average Trappes 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 44.5 39.5 34.7
Feb 46.4 39.8 34.2
Mar 53.8 45.3 37.8
Apr 62.2 52.3 43.2
May 66.3 56.9 48.6
Jun 71.8 62.4 53.9
Jul 76.4 66.1 57.2
Aug 75.5 65.3 56.6
Sep 69.2 59.6 51.2
Oct 60.8 53 46.6
Nov 51.8 46.2 41
Dec 45.4 40.3 35.6

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 6.9 4.2 1.5
Feb 8 4.3 1.2
Mar 12.1 7.4 3.2
Apr 16.8 11.3 6.2
May 19.1 13.8 9.2
Jun 22.1 16.9 12.2
Jul 24.7 18.9 14
Aug 24.2 18.5 13.7
Sep 20.7 15.3 10.7
Oct 16 11.7 8.1
Nov 11 7.9 5
Dec 7.4 4.6 2



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Trappes are April, September, and then October. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th 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 3 days of significant precipitation the week of December 3rd.

When can you find snow in Trappes? Weather stations report moderate or seasonal snow likely to be deepest around December, especially close to late December. The best time to ski (if at all) in Trappes 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 Trappes.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Trappes (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 19% 1.1 1.8
Feb 23% 0.8 1.9
Mar 21% 1.4 1.6
Apr 15% 0.4 1.3
May 20% 0 2.3
Jun 26% 0 2.7
Jul 19% 0 2.4
Aug 19% 0 2.6
Sep 15% 0 1.8
Oct 19% 0 2.1
Nov 23% 0.5 2.4
Dec 27% 2.1 2.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 19 2.8 4.6
Feb 23 2 4.8
Mar 21 3.6 4.1
Apr 15 1 3.3
May 20 0 5.8
Jun 26 0 6.9
Jul 19 0 6.1
Aug 19 0 6.6
Sep 15 0 4.6
Oct 19 0 5.3
Nov 23 1.3 6.1
Dec 27 5.3 6.9


Humidity and Wind

Trappes has some extremely humid months, with other comfortably humid months. The least humid month is April (58.2% relative humidity), and the most humid month is November (84.7%).

Wind in Trappes is usually calm. The windiest month is December, followed by January and February. December’s average wind speed of around 5.7 knots (6.5 MPH or 10.5 KPH) is considered “a light 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 10 knots, which is considered a gentle breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Trappes.

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 5.6 Light breeze 8.9 Gentle breeze
Feb 5.4 Light breeze 8.9 Gentle breeze
Mar 5.3 Light breeze 9.1 Gentle breeze
Apr 4.8 Light breeze 8.6 Gentle breeze
May 4.8 Light breeze 8.4 Gentle breeze
Jun 4.7 Light breeze 8.1 Gentle breeze
Jul 4.5 Light breeze 8 Gentle breeze
Aug 4.2 Light breeze 7.9 Gentle breeze
Sep 4.1 Light breeze 7.6 Gentle breeze
Oct 4.1 Light breeze 7.4 Gentle breeze
Nov 5 Light breeze 8.3 Gentle breeze
Dec 5.7 Light breeze 9.1 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 83.4%
Feb 76.2%
Mar 64.5%
Apr 58.2%
May 62.6%
Jun 63.1%
Jul 59.2%
Aug 61.1%
Sep 67%
Oct 77.9%
Nov 84.7%
Dec 83.4%


Is it Safe to Travel to Trappes?

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 Trappes, France is June, followed by May and July. 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 Trappes 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 43.4 in December means 43.4% of the tourists vs. June.



Overall Trappes Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 69.2°F (20.7°C) and 50.1°F (10.1°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 second 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 6 to 8 days of precipitation per month. June – August is the busiest season for tourism in Trappes, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 71.8°F (22.1°C) and 46.3°F (7.9°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 5 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 Trappes to be enjoyable for warm weather travelers. The average high during this season is between 50.1°F (10.1°C) and 42.1°F (5.6°C). On average, it rains or snows a fair amount: 6 to 8 times per month. These times of year are the slowest with tourists.


Best Times to TravelFrance › Trappes, France