The best times to visit Aalst for ideal weather are

May 14th 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 Aalst Travel Info

Weather in Aalst


Average temperatures in Aalst 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 30th 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 Aalst, 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 75.1°F (23.9°C) with temperatures rarely dropping below 57.1°F (13.9°C) at night.

Aalst Temperatures (Fahrenheit)


Aalst 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.

Aalst Perceived Temperature (F)


Aalst Perceived Temperature (C)



Average Aalst 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 42.9 38.7 34
Feb 43.6 38.6 33.6
Mar 52.1 44.4 36.6
Apr 60.2 50.7 40.7
May 63.8 55.3 46.6
Jun 69.9 61.1 52
Jul 73.7 64.9 55.9
Aug 72.7 63.7 55.1
Sep 67.1 58.6 50.4
Oct 60.3 53.2 46.7
Nov 51.8 46.9 41.8
Dec 45.2 41.3 36.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 6.1 3.7 1.1
Feb 6.4 3.7 0.9
Mar 11.2 6.9 2.6
Apr 15.7 10.4 4.8
May 17.7 12.9 8.1
Jun 21.1 16.2 11.1
Jul 23.2 18.3 13.3
Aug 22.6 17.6 12.8
Sep 19.5 14.8 10.2
Oct 15.7 11.8 8.2
Nov 11 8.3 5.4
Dec 7.3 5.2 2.7



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Aalst are March, April, and then June. 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 are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid October with an average of 3 days of significant precipitation the week of October 15th.

When can you find snow in Aalst? Weather stations report no annual snow. 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 Aalst.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 29% 0 3.1
Feb 25% 0 2.3
Mar 15% 0 1.8
Apr 17% 0 1.3
May 24% 0 2.5
Jun 21% 0 2.5
Jul 27% 0 3.6
Aug 30% 0 4.5
Sep 22% 0 3.2
Oct 31% 0 3.1
Nov 26% 0 3.3
Dec 32% 0 3.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 29 0 7.9
Feb 25 0 5.8
Mar 15 0 4.6
Apr 17 0 3.3
May 24 0 6.4
Jun 21 0 6.4
Jul 27 0 9.1
Aug 30 0 11.4
Sep 22 0 8.1
Oct 31 0 7.9
Nov 26 0 8.4
Dec 32 0 9.4


Humidity and Wind

Aalst has some extremely humid months, and above average humidity throughout the year. The least humid month is April (60.2% relative humidity), and the most humid month is November (82.6%).

Wind in Aalst is usually calm. The windiest month is December, followed by February and January. December’s average wind speed of around 8.6 knots (9.9 MPH or 15.9 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 mid December where average top sustained speeds reach 13.7 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

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 7.7 Gentle breeze 11.9 Significant breeze
Feb 8 Gentle breeze 12.4 Significant breeze
Mar 6.8 Light breeze 11.1 Significant breeze
Apr 6.6 Light breeze 11.5 Significant breeze
May 6.8 Light breeze 11.4 Significant breeze
Jun 6.5 Light breeze 10.9 Gentle breeze
Jul 5.7 Light breeze 9.9 Significant breeze
Aug 5.5 Light breeze 9.6 Gentle breeze
Sep 5.2 Light breeze 9.3 Significant breeze
Oct 6.1 Light breeze 9.9 Gentle breeze
Nov 7.5 Gentle breeze 11.8 Significant breeze
Dec 8.6 Gentle breeze 13.1 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 82%
Feb 77.1%
Mar 66.7%
Apr 60.2%
May 62.1%
Jun 62.7%
Jul 66.3%
Aug 68.8%
Sep 73.9%
Oct 78.2%
Nov 82.6%
Dec 81.1%


Is it Safe to Travel to Aalst?

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 Aalst, Belgium is October, followed by September and May. 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 Aalst in April. 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 63.4 in April means 63.4% of the tourists vs. October.



Overall Aalst Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 66.9°F (19.4°C) and 47°F (8.3°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 7 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see moderate precipitation with 6 to 9 days of precipitation per month. June – August is the slowest season for tourism in Aalst, so lodging and other accommodations may cost less than usual.

Fall (September through November)

Fall daily highs range from 70.4°F (21.3°C) and 46.2°F (7.9°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 7 to 10 days per month. Tourism is the busiest during these months due to the weather, so hotels may be higher priced.

Winter (December through February)

Weather is too cold this time of year in Aalst to be enjoyable for warm weather travelers. The average high during this season is between 47°F (8.3°C) and 40.9°F (4.9°C). On average, it rains or snows a fair amount: 7 to 10 times per month. These times of year are the second busiest with tourists.


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