Climate and monthly weather forecastAalst, Belgium
Climate and monthly weather forecast
The climate of Aalst
Nested in Belgium, Aalst experiences a predominantly Marine West Coast climate, warm summer, designated by Köppen as Cfb. This climate variation is marked by moderate temperature swings throughout the year, interspersed with varying amounts of precipitation.Weather conditions in Aalst display distinct fluctuations across different months. The city witnesses highest temperatures ranging from 5.5°C (41.9°F) to 23.3°C (73.9°F) and lowest temperatures fluctuating from 1.3°C (34.3°F) to 13.8°C (56.8°F). Comparative to other regions, Aalst's temperature variations are moderate, owing to its geographical position.
Rainfall across all months oscillates between 18mm (0.71") and 59mm (2.32"), with indications of rainfall days between 9.8 days to 17.9 days. Interestingly, snowfall is not a common occurrence in Aalst, except in the months of March and December where it reaches up to 36mm (1.42") and 27mm (1.06") respectively, making these months unique in their own right.
The best time to visit Aalst
Guided by the available weather parameters, the ideal time to visit Aalst would be during the summer months, between June and August. During this period, the city experiences the warmest temperatures averaging from 21.2°C (70.2°F) to 23.2°C (73.8°F). Visitors can also expect extended daylight hours, ranging from 16.4 hours to 16 hours, providing ample opportunity to explore and enjoy the city.Notably, this period registers the highest UV index at 5. To top it all, during these months, the probability of rainfall is comparatively lower with values between 23mm (0.91") to 32mm (1.26").
The worst time to visit Aalst
For those not partial to cold weather and diminished daylight hours, January may not be the prime time for a visit. With the lowest temperature ranging from 5.5°C (41.9°F) to 1.3°C (34.3°F) and daylight hours reduced to merely 8.5 hours, exploring Aalst in January could be a challenge.Rainfall also sees a substantial increase during this time, peaking to 45mm (1.77") with around 16.7 rainfall days making January one of the least desirable months to visit.
Spring weather in Aalst
The spring season in Aalst, from March to May, ushers in a gradual rise in temperature. With an average high of 15.4°C (59.7°F) in May and comparatively less rainfall from 43mm (1.69") to 29mm (1.14"), springtime becomes a pleasant period to witness the city's charm.Summer weather in Aalst
Summer months in Aalst bring temperatures averaging between 17.9°C (64.2°F) in May and 23.2°C (73.8°F) in August. Evenings remain pleasantly cool with a drop in temperature from 13.6°C (56.5°F) in July to 13.8°C (56.8°F) in August. Besides, Aalst notes an increase in hours of sunlight, which peaks at 16.4 hours in June.Autumn weather in Aalst
With the onset of autumn, the climate of Aalst transitions to cooler temperatures, diminishing sunlight hours, and a rise in rainfall. The months from September to November see temperatures fall steadily from a high of 19.8°C (67.6°F) to a low of 10°C (50°F). Rainfall during this period increases progressively from 21mm (0.83") to 44mm (1.73"), indicating more wet days.Winter weather in Aalst
Aalst enters its winter season from December, with temperatures taking a chilly turn marking a significant low of 1.3°C (34.3°F) in January. A highlight of winter in Aalst is the snowfall, unique to this period, with a notable peak of 36mm (1.42") in December. Daylight hours also take a dip, averaging 8 hours, providing fewer hours for outdoor activities.Weather in January
January in Aalst, Belgium sees brisk and damp conditions. Snowfall of 36mm (1.42") typically distributed over 3.9 days adds a chilly essence to the cityscape. This commences the year with adverse weather for outdoor activities. Amid frequent showers and chilling temperature, getting sunlight becomes an occasional luxury. Weather in January »Weather in February
The Aalst weather in February retains the slant of the wintry January conditions, with minor improvements in visibility and daylight. Yet, with an average temperature range from 1.5°C (34.7°F) to 6.8°C (44.2°F), February remains one of the coldest months. Weather in February »Weather in March
March marks a transition towards warmer and dryer conditions in Aalst. The doubling of daylight hours from January to March escalates outdoor activities. Absence of snow, moderating temperatures, and extended sunlight imply the arrival of spring. Weather in March »Weather in April
Proceeding to April, the Aalst weather continues to wax warmer from 3.3°C (37.9°F) to 15.4°C (59.7°F), fostering fresher and extended outdoor moments. Showers are scarce this month, with rainfall dipping to its yearly minimum of 18mm (0.71"). Weather in April »Weather in May
Entering into May, Aalst paves the way for summer, with temperature brackets edging up to 8.3°C (46.9°F) from 17.9°C (64.2°F). Weather patterns gradually tilt towards warmer conditions, inviting more sunbathing opportunities. The increase in relative humidity prompts some discomfort, despite falling short of peak levels. Weather in May »Weather in June
June embodies the typical summer temperament in Aalst, albeit the temperature limits are yet to touch the 23.3°C (73.9°F) peak of July. As the city basks in the longest daylight hours of the year, outdoor enthusiasts make the best of this period. Weather in June »Weather in July
Aalst steps into its warmest period in July, as temperatures leap to a high of 23.3°C (73.9°F). This epitomises the height of summer, with citizens engaging in water sports and other outdoor recreations. With the substantial sunlight, UV levels touch a peak value of five, calling for sunscreen applications in the afternoon. Weather in July »Weather in August
August in Aalst continues to bask in the summer heat, with temperatures almost identical to July's. As August progresses, days start to shorten, signifying the closing phase of summer. The UV index remains at a peak of five, necessitating sun protection routines. Weather in August »Weather in September
In September, Aalst experiences a slight drop in temperatures, marking the arrival of Autumn. The weather transformation ushers falling leaves and cooler winds into the city. Despite the contract in daylight hours, outdoor events proceed without interruption. Weather in September »Weather in October
October carries forward the autumn chill in Aalst, enticing tourists with the changing foliage. The common weather scenario remains cool and comfortable. Deviating from the previous month, October witnesses a rise in rainfall to 31mm (1.22"), co-existing with the increased cloud percentage. Weather in October »Weather in November
In November, temperatures in Aalst continue to dip, instigating the transition from autumn to winter. The weather progresses towards cooler conditions, preparing citizens for frosts and snow. Humidity ascends rapidly, causing a dampness in the air that characterizes impending winters. Weather in November »Weather in December
December ushers in a typical winter scenario in Aalst, Belgium as temperatures range from 2.8°C (37°F) to 6.6°C (43.9°F). This marks the onset of the vacation season, fascinating tourists with a snow-covered townscape. The weather remains cold and damp, while extended nights contribute to a rather wintry atmosphere. Weather in December »Updated: Jan 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Aalst, January records the average lowest temperatures, peaking at 5.5°C (41.9°F) and reaching a low of 1.3°C (34.3°F).
In Aalst, during the entire year, the rain falls for 169.4 days and collects up to 421mm (16.57") of precipitation.
January through March, November and December are months with snowfall in Aalst, Belgium.
January is the month with the most snowfall in Aalst, Belgium. Snow falls for 3.9 days and accumulates 36mm (1.42") of snow.
In Aalst, during the entire year, snow falls for 12.5 days and aggregates up to 107mm (4.21") of snow.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
April, July and August, with an average relative humidity of 75%, are the least humid months.
April is the month with the least rainfall in Aalst, Belgium. Rain falls for 12.5 days and accumulates 18mm (0.71") of precipitation.
April through October are months without snowfall in Aalst.
The month with the longest days in Aalst, Belgium, is June, with an average of 16h and 30min of daylight.
With an average of 9.1h of sunshine, June has the most sunshine of the year.
The months with the highest UV index in Aalst, Belgium, are June through August, with an average maximum UV index of 5.
July is the warmest month in Aalst, with the temperature often reaching an average high of 23.3°C (73.9°F) and an average low of 13.6°C (56.5°F).
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
December is the most humid month in Aalst, Belgium, with an average relative humidity of 88%.
The month with the most rainfall is December, when the rain falls for 17.9 days and typically aggregates up to 59mm (2.32") of precipitation.
The month with the shortest days is December, with an average of 8h and 0min of daylight.
December has the least sunshine of the year, with an average of 3.5h of sunshine.
Average temperature
Aalst, Belgium
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (5.5°C).
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure
Aalst, Belgium
- Average pressure in January:
1015.9mbar - Average pressure in February:
1015mbar - Average pressure in March:
1016mbar - Average pressure in April:
1015.8mbar - Average pressure in May:
1016.5mbar - Average pressure in June:
1016.3mbar
- Average pressure in July:
1015.7mbar - Average pressure in August:
1015.6mbar - Average pressure in September:
1017.3mbar - Average pressure in October:
1016.3mbar - Average pressure in November:
1012.2mbar - Average pressure in December:
1016.1mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed
Aalst, Belgium
- Average wind speed in January:
16.5km/h - Average wind speed in February:
16.9km/h - Average wind speed in March:
15.2km/h - Average wind speed in April:
12.4km/h - Average wind speed in May:
12.4km/h - Average wind speed in June:
12.3km/h
- Average wind speed in July:
11.9km/h - Average wind speed in August:
11.7km/h - Average wind speed in September:
12.1km/h - Average wind speed in October:
13.7km/h - Average wind speed in November:
15.2km/h - Average wind speed in December:
17.3km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity
Aalst, Belgium
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are April, July and August (75%).
Average rainfall
Aalst, Belgium
The wettest month (with the highest rainfall) is December (59mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days
Aalst, Belgium
- Average rainfall days in January:
16.7 days - Average rainfall days in February:
15.4 days - Average rainfall days in March:
14 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
9.8 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
16.7 days - Average rainfall days in December:
17.9 days
The month with the highest number of rainy days is December (17.9 days).
The month with the least rainy days is September (9.8 days).
Average snowfall
Aalst, Belgium
The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Aalst, Belgium
- Average snowfall days in January:
3.9 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
1.2 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Aalst, Belgium
- Average daylight in January:
8h and 30min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 36min - Average daylight in June:
16h and 30min
- Average daylight in July:
16h and 0min - Average daylight in August:
14h and 30min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
9h and 0min - Average daylight in December:
8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 12min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 6min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
8h and 42min - Average sunshine in September:
7h and 12min - Average sunshine in October:
5h and 12min - Average sunshine in November:
3h and 54min - Average sunshine in December:
3h and 30min
The month with the most sunshine is June (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days
Aalst, Belgium
- Average sunshine days in January:
9 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
15.2 days - Average sunshine days in June:
15.1 days
- Average sunshine days in July:
16.4 days - Average sunshine days in August:
17 days - Average sunshine days in September:
18.7 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
9.3 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is February (8.8 days).
Average UV index
Aalst, Belgium
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Aalst, Belgium
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 43).
Average visibility
Aalst, Belgium
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
