The best times to visit Bouillon for ideal weather are

May 28th to September 16th

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



Other Bouillon Travel Info

Weather in Bouillon


Average temperatures in Bouillon 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 22nd 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 Bouillon, 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 77°F (25°C) with temperatures rarely dropping below 53.7°F (12.1°C) at night.

Bouillon Temperatures (Fahrenheit)


Bouillon 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.

Bouillon Perceived Temperature (F)


Bouillon Perceived Temperature (C)



Average Bouillon 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 42.7 37.3 31.4
Feb 44.2 37.1 29.8
Mar 53.1 42.5 32.1
Apr 62.5 49.9 36.6
May 66.9 55.5 43.3
Jun 72.4 61.3 49.5
Jul 75.9 64.3 52.5
Aug 74.5 62.7 51
Sep 67.8 56.1 45
Oct 59.4 50.1 41.2
Nov 49.9 44.1 37.8
Dec 43.5 38 31.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 5.9 2.9 -0.3
Feb 6.8 2.8 -1.2
Mar 11.7 5.8 0.1
Apr 16.9 9.9 2.6
May 19.4 13.1 6.3
Jun 22.4 16.3 9.7
Jul 24.4 17.9 11.4
Aug 23.6 17.1 10.6
Sep 19.9 13.4 7.2
Oct 15.2 10.1 5.1
Nov 9.9 6.7 3.2
Dec 6.4 3.3 -0.1



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Bouillon are April, August, and then September. 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 March. For example, on the week of March 12th 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 Bouillon? Weather stations report a good amount of seasonal snow likely to be deepest around December, especially close to mid December. The best time to ski (if at all) in Bouillon 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 Bouillon.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 32% 1.2 3.8
Feb 28% 0.5 2.9
Mar 25% 1.1 2.7
Apr 18% 0.8 1.9
May 25% 0 2.9
Jun 27% 0.4 3.6
Jul 24% 0.4 3.4
Aug 22% 0 3.2
Sep 22% 0.4 2.2
Oct 25% 0 2.9
Nov 28% 0.4 3.1
Dec 33% 2.4 4.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 32 3 9.7
Feb 28 1.3 7.4
Mar 25 2.8 6.9
Apr 18 2 4.8
May 25 0 7.4
Jun 27 1 9.1
Jul 24 1 8.6
Aug 22 0 8.1
Sep 22 1 5.6
Oct 25 0 7.4
Nov 28 1 7.9
Dec 33 6.1 11.2


Humidity and Wind

Bouillon has some extremely humid months, and above average humidity throughout the year. The least humid month is April (62.6% relative humidity), and the most humid month is November (85.1%).

Wind in Bouillon is usually calm. The windiest month is January, followed by March and December. January’s average wind speed of around 5.5 knots (6.3 MPH or 10.1 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 11.4 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

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 5.5 Light breeze 10.1 Gentle breeze
Feb 5.2 Light breeze 9.7 Gentle breeze
Mar 5.4 Light breeze 10.7 Gentle breeze
Apr 4.4 Light breeze 9.8 Gentle breeze
May 4.7 Light breeze 10.1 Gentle breeze
Jun 4.6 Light breeze 9.7 Gentle breeze
Jul 4.3 Light breeze 9.4 Gentle breeze
Aug 3.8 Barely noticeable 8.8 Gentle breeze
Sep 3.7 Barely noticeable 8.5 Gentle breeze
Oct 4.1 Light breeze 8.3 Gentle breeze
Nov 5.2 Light breeze 9.3 Gentle breeze
Dec 5.3 Light breeze 9.4 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 82.8%
Feb 78.7%
Mar 67.8%
Apr 62.6%
May 66.2%
Jun 65.9%
Jul 66.1%
Aug 70.4%
Sep 75.3%
Oct 81.1%
Nov 85.1%
Dec 84.3%


Is it Safe to Travel to Bouillon?

Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for Belgium; 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 Aug 22, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Bouillon, Belgium is May, followed by January 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 Bouillon 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 extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 53.9 in December means 53.9% of the tourists vs. May.



Overall Bouillon Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 70.6°F (21.4°C) and 48.9°F (9.4°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 8 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 7 to 8 days of precipitation per month. June – August is fairly slow season for tourism in Bouillon, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 70.5°F (21.4°C) and 43.7°F (6.5°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 7 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Bouillon to be enjoyable for warm weather travelers. The average high during this season is between 48.9°F (9.4°C) and 40.5°F (4.7°C). On average, it rains or snows a fair amount: 8 to 10 times per month. These times of year are the second busiest with tourists.


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