August Weather in Aalst, Belgium

Last updated: August 21, 2025

In Aalst, Belgium, August presents a vibrant tapestry of weather characterized by fluctuating temperatures and moderate humidity. With maximum temperatures reaching a toasty 35°C (96°F) and an average of 19°C (66°F), the month offers warm days perfect for outdoor activities. However, evenings can be brisk, dipping to a refreshing minimum of 8°C (47°F). Rainfall is not uncommon, with 73 mm (2.9 in) spread across 13 days, contributing to a relative humidity of 76% that adds to the lush greenery of the landscape. Whether basking in the summer sun or enjoying a clear night, August in Aalst is a season of warm days and refreshing breezes.

August Temperature in Aalst

August in Aalst, Belgium, brings a delightful culmination of summer warmth, as temperatures typically range from a minimum of 8°C (47°F) to a maximum of 35°C (96°F). With an average temperature of 19°C (66°F), this month showcases the peak of warmth, slightly echoing July's intensity. However, unlike July's record highs, August presents a more temperate climate, inviting both locals and tourists to enjoy outdoor activities and cultural festivities. As summer begins to wane, the perfect blend of warmth and mild evenings makes August an ideal time to explore Aalst's vibrant streets, providing a beautiful transition into the cooler months ahead.

August Weather in Aalst: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Aalst, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aalst, August typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245505765666660554642
Data source: Temperature data for Aalst generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Aalst

In August, Aalst experiences a noticeable increase in precipitation, with 73 mm (2.9 in) of rain recorded over 13 days. This marks the highest rainfall amount of the summer months, following closely behind July’s 66 mm. Such a spike often signals the shift from warm summer days to the wetter conditions that characterize early autumn. The consistency of rainfall in August sets the stage for the lush greenery that will thrive in the following months, showcasing how precipitation trends can influence both the environment and daily life in this charming Belgian city. As summer begins to wane, the dance of rain and sunshine continues to define Aalst's unique climate.

August Precipitation Trends in Aalst

The chart displays monthly precipitation patterns in Aalst, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Aalst, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec626569396063667352815389
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Aalst

As summer reaches its peak in Aalst, Belgium, August brings a refreshing dip in humidity, averaging 76%, the lowest of the year. This decline continues a gradual trend observed from the wetter winter months, when humidity levels hover around 91% in January and 89% in February. The transition into late summer indicates a shift towards drier conditions, allowing for a more comfortable atmosphere as residents enjoy the warm temperatures. However, this reprieve is short-lived, as humidity starts to climb again in September, signaling the approach of autumn and the return of those characteristic moist air patterns. Overall, August stands out as a brief yet delightful interlude in Aalst's yearly humidity cycle.

August Average Humidity in Aalst

This chart illustrates the average monthly humidity levels in Aalst, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Aalst is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Aalst

In August, Aalst, Belgium experiences a UV Index of 7, indicating a high level of solar exposure, with a burn time of just 25 minutes for fair-skinned individuals. This pattern shows a slight decline from the peak UV Index of 8 seen in the previous two months, July and June, which also had a very high exposure category. Throughout the summer, the UV Index consistently rises, beginning with a moderate index of 4 in March and peaking in the summer months. As the season transitions to September, the UV Index begins to moderate, dropping back to 5. Staying informed about these trends is crucial for sun safety. For detailed information, visit Aalst UV Index.

Maximum UV Index Levels in Aalst for August

The chart shows the monthly maximum UV Index (UVI) for Aalst in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Aalst typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Aalst August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Aalst

In Aalst, Belgium, August shines as a vibrant peak of summer, delivering 386 hours of sunshine, which, while slightly lower than the sun-drenched months of June and July, still contributes to a lively atmosphere. This month signifies a subtle transition, as the hours of sunlight gradually begin to taper off from the summer highs, hinting at the approaching autumn. With a steady increase from January's mere 120 hours to a flourishing 415 hours in July, the sunshine trend in Aalst clearly illustrates the joy of summer, making August a month to relish the last warm days before the crispness of fall settles in. As September beckons with its 323 hours of light, August serves as a beautiful reminder of the season’s bounty, perfectly balancing warmth and leisure.

Monthly Sunshine Duration in Aalst: August Highlighted

The August sunshine duration represents the total number of hours Aalst experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec120h204h274h351h400h407h415h386h323h243h196h149h
Data source: Aalst August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Aalst During August

In Aalst, Belgium, August brings a moderate 31% chance of sunshine, making it a transitional month in the summer season. While this percentage represents a slight dip from July's consistent 34%, the weather remains relatively favorable compared to the rest of the year. Notably, as spring evolves into summer, the likelihood of sunny days peaks in late spring, with April showcasing the highest probability at 48%. As we move toward autumn, the chances of sun in Aalst stabilize around 30% to 34% in the fall months, indicating a gradual return to cloudier days. Overall, August maintains a pleasant balance, promising enough sun to enjoy outdoor activities while hinting at the impending seasonal shift.

Percentage of Sunny Days in August in Aalst

The chart illustrates the percentage of sunny days in Aalst throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Aalst experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%30%39%48%34%34%34%31%34%30%22%15%
Data source: Aalst August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Aalst in August

In Aalst, Belgium, the daylight duration in August reflects a gradual transition from the long, sun-drenched days of summer toward the shorter days of autumn. With approximately 14 hours of daylight, August marks a slight decrease from July’s peak of 15 hours, yet it still allows plenty of sunshine for outdoor activities. As the month progresses, daylight starts to wane, mirroring a seasonal trend where the longest days occur in June and slowly taper off as autumn approaches. This fading light serves as a beautiful reminder of nature's cycles, inviting residents to savor the lingering warmth of summer evenings before the briskness of fall sets in.

Average Daylight Hours in Aalst for August

The chart illustrates the variation in daylight duration in Aalst throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 55m13h 51m15h 32m16h 25m15h 57m14h 26m12h 34m10h 38m8h 55m8h
Data source: Aalst daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Aalst

In Aalst, Belgium, the winds of August typically blow at an average speed of 3.4 m/s (8 mph), marking a slight uptick from the calmer summer months of June and July, when winds dipped to 2.8 m/s (6 mph) and 3.2 m/s (7 mph), respectively. This increase reflects a shift in the seasonal breeze as summer transitions into autumn. Notably, wind speeds in Aalst tend to peak in the colder months, with January, October, and December each averaging around 4.2 m/s (9 mph). Overall, August's gentle winds offer a perfect, laid-back atmosphere, allowing residents and visitors alike to enjoy the last days of summer before the winds pick up in the coming autumn months.

Average August Wind Speed in Aalst

The chart displays monthly wind speed patterns in Aalst, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.24.43.93.54.22.83.23.4 m/s3.04.23.24.0
Data source: Aalst August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Aalst Compares to Other Months

Weather in Aalst varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Aalst, focusing on differences in temperature, rainfall, humidity, and UV levels.

The weather in August and January showcases a stark contrast in temperatures and conditions. In August, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (96°F), with an average of 19°C (66°F). This month experiences higher humidity at 76% and more rainfall, with 73 mm (2.9 in) of precipitation occurring over approximately 13 days. In contrast, January presents chilly temperatures, with a minimum of -6°C (21°F) and a maximum of 14°C (58°F), averaging around 4°C (40°F). Despite having slightly less precipitation at 62 mm (2.5 in) over 12 days, January's humidity is notably higher at 91%. For more detailed insights on January weather, you can visit Aalst weather in January.

August and February present stark contrasts in weather conditions. In August, temperatures can soar to a maximum of 35°C (96°F), with an average of 19°C (66°F), making it the warmest month of the year. The humidity is relatively high at 76% and there are about 13 days of precipitation totaling 73 mm (2.9 in). In contrast, February experiences much colder weather, with temperatures ranging from a frigid minimum of -11°C (13°F) to a maximum of 18°C (65°F) and an average of only 6°C (42°F). While February has slightly less precipitation at 65 mm (2.6 in) over 12 days, it is characterized by higher humidity at 89%. These differences highlight the seasonal shift from the warmth of summer to the chill of winter. For more information about February weather, check out Aalst weather in February.

When comparing the weather in August and March, it's evident that these two months present distinct climatic conditions. August experiences warmer temperatures, with an average of 19°C (66°F) and a maximum reaching up to 35°C (96°F), while March remains cooler, averaging 7°C (46°F) and peaking at 23°C (73°F). Precipitation levels are relatively similar, with August receiving 73 mm (2.9 in) over 13 days and March recording 68 mm (2.7 in) over 14 days. Humidity also differs, as August has a lower humidity level at 76%, compared to March's higher humidity at 87%. For a more detailed look at March weather, you can visit Aalst weather in March.

When comparing the weather in August and April, distinct differences emerge. August typically experiences warmer temperatures, with an average of 19°C (66°F) and maximums reaching up to 35°C (96°F), contrasted with April's milder average of 10°C (51°F) and maximums of 27°C (80°F). Precipitation levels also vary, with August receiving 73 mm (2.9 in) over 13 days, while April sees less rainfall at 39 mm (1.5 in) over 9 days. Notably, April's humidity at 85% is slightly higher than August's 76%, contributing to the differing atmospheres of these two months. For more detailed information, you can check Aalst weather in April.

When comparing the weather in August and May, it's clear that August tends to be hotter, with average temperatures reaching 19°C (66°F) compared to May's 14°C (57°F). August experiences a wider temperature range, peaking at 35°C (96°F), whereas May's maximum is a milder 30°C (87°F). In terms of precipitation, both months are relatively similar, with August accumulating 73 mm (2.9 in) over 13 days and May slightly less at 59 mm (2.3 in) over 12 days. Additionally, humidity levels are slightly higher in May at 82%, compared to 76% in August. For more detailed insights, you can check Aalst weather in May.

In comparing the weather of August and June, we see some notable differences. August tends to be warmer, with average temperatures reaching 19°C (66°F) and maximums hitting up to 35°C (96°F), compared to June's average of 18°C (65°F) and a peak of 32°C (91°F). Precipitation is slightly higher in August, totaling 73 mm over 13 days, while June sees a bit less, with 63 mm over 9 days. Humidity is also notably high in both months, but is slightly lower in August at 76% compared to June's 82%. For a closer look at June's specific weather conditions, you can check out Aalst weather in June.

In comparing the weather of July and August, both months experience similar minimum and average temperatures, with a low of 8°C (47°F) and an average of 19°C (66°F). However, July tends to be warmer overall, with a maximum temperature reaching 39°C (102°F), compared to August's peak of 35°C (96°F). Precipitation is slightly higher in August at 73 mm (2.9 in) over 13 days, in contrast to July's 66 mm (2.6 in) over 11 days. Additionally, humidity levels are marginally lower in August at 76%, compared to 80% in July. For more detailed insights, refer to Aalst weather in July.

In August, temperatures range from a cool minimum of 8°C (47°F) to a high of 35°C (96°F), with an average temperature of 19°C (66°F). The month sees considerable precipitation, with 73 mm (2.9 in) falling over 13 days, while humidity averages around 76%. In contrast, September features cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 32°C (90°F), leading to an average of 16°C (60°F). Precipitation decreases to 52 mm (2.1 in) over 9 days, although humidity rises slightly to 82%. For more details, you can check out Aalst weather in September.

August and October present markedly different weather conditions. In August, temperatures can range from a comfortable 19°C (66°F) on average to a sweltering high of 35°C (96°F), with a minimum of 8°C (47°F). The month experiences significant humidity at 76% and a total precipitation of 73 mm (2.9 in) over 13 days. In contrast, October sees a drop in average temperature to 13°C (55°F) with highs peaking at 25°C (77°F) and lows dipping to 2°C (36°F). This month is slightly wetter, recording 81 mm (3.2 in) of precipitation, also spread over 13 days, but with a higher humidity level of 89%. For more details on the weather specifics, you can check Aalst weather in October.

August and November present contrasting weather patterns. In August, temperatures fluctuate from a minimum of 8°C (47°F) to a maximum of 35°C (96°F), with an average of 19°C (66°F). The month experiences relatively high humidity at 76% and 73 mm (2.9 in) of precipitation over 13 days. In contrast, November sees much cooler temperatures, with a minimum of -2°C (29°F), an average of 8°C (46°F), and a maximum of 19°C (66°F). Although November has slightly less precipitation at 53 mm (2.1 in) over 12 days, the humidity rises to 92%, making it feel even colder. For more details, you can check the Aalst weather in November.

In August, the weather in Aalst is characterized by warmer temperatures, with a minimum of 8°C (47°F), an average of 19°C (66°F), and a maximum reaching up to 35°C (96°F). Humidity levels are relatively high at 76%, and there is an average of 73 mm (2.9 in) of precipitation spread over 13 days. In contrast, December brings a much cooler climate, where temperatures drop significantly, with a minimum of -4°C (25°F) and an average of just 6°C (43°F), peaking at a mild 15°C (59°F). The humidity increases to 92%, and precipitation also rises to 89 mm (3.5 in) across 16 days. For more detailed information about December's weather, you can visit Aalst weather in December.

Compare Aalst's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Aalst

As summer begins to wane, August weather in Aalst showcases a unique charm that distinguishes it from the preceding months. With higher temperatures peaking at a toasty 35°C (96°F), the warmth lingers in the air, inviting outdoor activities before the cooler autumn days set in. However, the month also brings a noticeable increase in precipitation, averaging 73 mm (2.9 in) over approximately 13 days, contributing to the region's lush landscapes. Despite the warmth, humidity levels hover around a damp 76%, creating a distinct feeling of summer’s last hurrah. For those eager to delve deeper into Aalst’s weather trends, check out Aalst Climate for a comprehensive overview.