August Weather in Genval, Belgium

Last updated: August 21, 2025

In Genval, Belgium, August brings a mix of warm days and refreshing rain, showcasing the region's characteristic summer charm. With a maximum temperature soaring to 36°C (97°F) and a comfortable average of 19°C (66°F), residents and visitors experience a delightful blend of warmth and cooler evenings. However, the month can be quite wet, recording approximately 84 mm (3.3 in) of rainfall over 14 days, contributing to a humidity level of 76% that enhances the lush greenery of the area. Whether you're exploring the serene lakes or enjoying outdoor activities, Genval’s August weather offers a dynamic backdrop for a memorable summer experience.

August Temperature in Genval

In August, Genval, Belgium, experiences a delightful summer warmth, with temperatures showcasing a notable rise. The month starts off pleasantly, with a minimum temperature of around 7°C (46°F), and an average hovering at a comfortable 19°C (66°F). As the days unfold, the peak heat can soar to a striking 36°C (97°F), setting the stage for some of the warmest days of the year. This trend of increasing warmth is a clear extension of July's sweltering highs, illustrating how August serves as a fitting encore to the summer season. As the summer sun paints vibrant scenes, Genval becomes a picturesque setting for outdoor adventures, best enjoyed in the sultry embrace of late summer temperatures.

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

The chart illustrates August temperature patterns in Genval, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Genval, 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).
JanFebMarAprMayJunJulAugSepOctNovDec394145505664666660544542
Data source: Temperature data for Genval 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 Genval

August in Genval, Belgium, stands out as a notably wet month, with precipitation reaching 84 mm (3.3 in) over 14 rainy days. This surge in rainfall marks the highest amount for the summer, following a steady increase from the spring's lighter showers. Compared to July, which had 74 mm (2.9 in) of rain over fewer days, August brings both increased quantity and frequency of precipitation. As summer transitions into autumn, the elevated rainfall hints at the approaching change in seasons, indicating that Genval experiences its wettest days just before the harvest season kicks in. This trend of gradually rising precipitation culminates in a significant shift, highlighting August as a turning point in the region's weather pattern.

August Precipitation Trends in Genval

The chart displays monthly precipitation patterns in Genval, 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 Genval, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec657071376072748458785892
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Genval

In August, Genval, Belgium experiences a notable dip in humidity, averaging around 76%. This reduction signals a transitional phase within the year, as the summer months peak with warmer temperatures and relatively lower moisture levels. Compared to earlier months, where humidity hovered consistently above 80%, August provides a brief respite from the thick, heavy air characteristic of the preceding spring and summer. Following this drop, humidity levels begin to rise again in September, returning to 82%, suggesting a gradual shift towards the wetter autumn months ahead, where humidity ultimately climbs back to the high ranges seen in January and November.

August Average Humidity in Genval

This chart illustrates the average monthly humidity levels in Genval, 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 Genval 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 Genval

In August, Genval, Belgium experiences a UV Index of 7, categorized as high exposure, which signifies a notable level of UV radiation. This month follows July's peak, where the index also reached a high of 8, reflecting a trend of intense summer sun. The recommended burn time is 25 minutes, a slight increase from the quicker burn time of July, but still urges caution for outdoor enthusiasts. As summer transitions towards autumn, the UV levels begin to decrease, with September showing a UV Index of 5. Awareness of these fluctuations is essential for maintaining skin health, so be sure to protect yourself appropriately during these vibrant summer days. For more detailed information, check out the Genval UV Index.

Maximum UV Index Levels in Genval for August

The chart shows the monthly maximum UV Index (UVI) for Genval 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 Genval typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Genval 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 Genval

In August, Genval, Belgium basks in a steady embrace of sunshine, with 379 hours of glorious daylight lighting up the days. This marks a slight dip from the previous month, but still maintains a vibrant summer atmosphere. Following the peak of summer in July, which saw 406 hours of sun, August continues to benefit from the long days and warm temperatures typical of the season. As we transition into autumn, the sunshine hours are expected to decrease, but August's luminous days contrast sharply with the year’s early winter gloom, where January sees merely 121 hours of sunlight. This seasonal trend showcases Genval's breezy summers and diminishing daylight into the colder months, reminding us to relish every sun-kissed moment before fall's arrival.

Monthly Sunshine Duration in Genval: August Highlighted

The August sunshine duration represents the total number of hours Genval 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.
JanFebMarAprMayJunJulAugSepOctNovDec121h200h266h346h394h398h406h379h319h240h190h143h
Data source: Genval August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Genval During August

In August, Genval, Belgium experiences a 29% chance of sunny weather, which is a notable dip from the sunny embrace of previous months. This decrease follows the peak sunny potential of 49% in April, contrasting with the consistent 33% likelihood seen in June and July. While August still enjoys a fair amount of pleasant days, it signals a transition toward the cooler months ahead, where chances of sun fluctuate again in September and October. Overall, those seeking sun in late summer should be prepared for a mix of weather, embracing the warmth while remaining vigilant about the possibility of overcast skies.

Percentage of Sunny Days in August in Genval

The chart illustrates the percentage of sunny days in Genval 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 Genval experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec10%31%39%49%33%33%33%29%36%31%24%16%
Data source: Genval August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Genval in August

As summer begins to wane, August in Genval, Belgium offers a delightful balance of daylight, providing around 14 hours of sunshine. This gradual decline from June's peak of 16 hours signals the transition from the vibrant long days of summer to the shorter daylight hours of autumn. Interestingly, August maintains slightly more daylight than July, showcasing the lingering warmth of the season. Following this peak, daylight steadily diminishes, dropping to 12 hours by September, setting the stage for the cozy evenings of fall as daylight decreases toward 10 hours by October. This rhythmic ebb and flow of daylight throughout the year paints a beautiful portrait of nature's cycles in Genval.

Average Daylight Hours in Genval for August

The chart illustrates the variation in daylight duration in Genval throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 30m10h 2m11h 55m13h 50m15h 31m16h 23m15h 55m14h 25m12h 34m10h 39m8h 56m8h 1m
Data source: Genval daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Genval

In Genval, Belgium, August brings a gentle breeze with an average wind speed of 3.4 m/s (8 mph), mirroring the calmness of July. Throughout the year, wind speeds fluctuate, with January and October showcasing the season's strongest gusts at 4.4 m/s (10 mph). As spring transitions into summer, a noticeable dip occurs in June, where the winds weaken to 2.8 m/s (6 mph), only to slightly recover as the months progress towards autumn. This pattern indicates a trend where the winds tend to be milder during the summer months, creating a serene atmosphere ideal for enjoying the lush landscapes of Genval. As the year winds down, November and December again bring the winds back up to a cozy 3.4 m/s (8 mph), offering a refreshing feel before winter takes hold.

Average August Wind Speed in Genval

The chart displays monthly wind speed patterns in Genval, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.64.13.44.42.83.43.4 m/s3.04.43.44.2
Data source: Genval August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Genval Compares to Other Months

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

August and January present contrasting weather conditions, reflecting the stark differences between summer and winter. In August, temperatures range from a cool 7°C (46°F) to a scorching 36°C (97°F), with an average temperature of 19°C (66°F). The month sees an average precipitation of 84 mm (3.3 in) over about 14 days, accompanied by a humidity level of 76%. In contrast, January experiences much colder temperatures, with a minimum of -7°C (20°F) and a maximum of 14°C (57°F), averaging just 4°C (39°F). This winter month has slightly less precipitation at 65 mm (2.6 in) over 12 days, but the humidity is notably higher at 91%. For a detailed look at January weather, visit Genval weather in January.

August and February present strikingly contrasting weather patterns. In August, temperatures can soar with highs reaching up to 36°C (97°F), while the month averages around 19°C (66°F) and enjoys relatively high humidity at 76%. There is also considerable precipitation, totaling 84 mm (3.3 in) over approximately 14 days. In contrast, February experiences much colder weather with temperatures ranging from a minimum of -9°C (17°F) to a maximum of 19°C (66°F), peaking at an average of 5°C (42°F). This winter month has slightly less rainfall, at 70 mm (2.7 in) across about 12 days, but higher humidity levels at 89%. For a closer look at February weather specifics, you can visit Genval weather in February.

In comparing the weather patterns of August and March, it's evident that August is significantly warmer, with average temperatures reaching 19°C (66°F) compared to March's cooler average of only 7°C (45°F). The maximum temperatures in August can soar up to 36°C (97°F), while March sees a milder high of 23°C (74°F). Both months experience a similar number of rainy days, with 14 days of precipitation, but August receives slightly more rainfall at 84 mm (3.3 in) compared to March's 71 mm (2.8 in). Humidity levels are also notably high in both months, with August at 76% and March slightly higher at 87%. For more detailed insights, you can explore Genval weather in March.

In comparing the weather between August and April, we see a significant contrast in temperatures and overall conditions. August boasts a much warmer climate, with average temperatures reaching 19°C (66°F) and a maximum of 36°C (97°F), while April has a cooler average of 10°C (50°F) and a maximum of only 27°C (81°F). August also experiences higher humidity at 76%, compared to April's 85%. Additionally, precipitation in August is more substantial, with 84 mm (3.3 in) over 14 days, while April sees only 36 mm (1.4 in) over 8 days. For a closer look at April weather specifics, visit Genval weather in April.

When comparing the weather in August and May, one can observe distinct differences in temperature and humidity levels. August boasts a wider temperature range, with minimums around 7°C (46°F) and maximums soaring to 36°C (97°F), resulting in a higher average temperature of 19°C (66°F). In contrast, May has cooler temperatures, ranging from a minimum of 0°C (33°F) to a maximum of 31°C (87°F), with an average of just 13°C (57°F). While both months experience considerable precipitation, August has slightly more at 84 mm (3.3 in) over 14 days compared to May's 60 mm (2.4 in) over 13 days. August's humidity at 76% is lower than May's 82%, leading to a relatively more comfortable feel despite the heat. For more detailed insights, you can check Genval weather in May.

In June, the weather in Genval tends to be mild, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 33°C (91°F) and an average of 18°C (65°F). The month sees around 72 mm (2.8 in) of precipitation over 11 days and relatively high humidity at 82%. In contrast, August experiences a wider temperature range, with a minimum of 7°C (46°F), an average of 19°C (66°F), and a peak of 36°C (97°F). The rainfall increases slightly to 84 mm (3.3 in) over 14 days, and humidity remains high at 76%. Overall, August tends to be warmer and wetter compared to June, contributing to a slightly more humid atmosphere. For a detailed look at June weather, check out Genval weather in June.

In comparing the weather of August and July, both months exhibited similar average temperatures, with August peaking at a maximum of 36°C (97°F) compared to July's highest of 39°C (102°F). However, August experienced slightly cooler minimum temperatures, dipping to 7°C (46°F) versus July's 8°C (46°F). Precipitation was somewhat higher in August, with 84 mm (3.3 in) over 14 days, compared to July’s 74 mm (2.9 in) across 11 days. Humidity levels were also slightly elevated in August at 76%, compared to July's 80%. For more detailed weather information, you can visit Genval weather in July.

August and September exhibit notable differences in weather patterns. August typically experiences a wider temperature range, with minimums of 7°C (46°F) and maximums reaching up to 36°C (97°F), leading to an average of 19°C (66°F). In contrast, September's temperatures are milder, with a minimum of 4°C (39°F) and an average of 15°C (60°F), peaking at 33°C (91°F). Precipitation also varies, with August seeing 84 mm (3.3 in) over 14 days, while September brings less rain at 58 mm (2.3 in) on just 10 days. Humidity remains relatively high in both months, slightly increasing from 76% in August to 82% in September. For more detailed information, you can check Genval weather in September.

In comparing the weather of August and October, we notice a significant drop in temperatures as summer transitions into autumn. August boasts a wider temperature range, with minimums around 7°C (46°F) and maximums reaching up to 36°C (97°F), averaging at 19°C (66°F). In contrast, October's temperatures are notably cooler, with lows of 1°C (35°F) and maximums of 25°C (77°F), averaging only 12°C (54°F). Although August sees slightly more precipitation at 84 mm (3.3 in) over 14 days, October follows closely behind with 78 mm (3.1 in) across 13 days. Moreover, humidity levels are higher in October at 89%, compared to August's 76%, suggesting a more crisp and damp atmosphere as autumn sets in. For more detailed information about October's weather, you can check Genval weather in October.

In August, the weather is characterized by a much warmer climate, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 36°C (97°F) and an average of 19°C (66°F). This month experiences significant humidity at 76% and receives about 84 mm (3.3 in) of precipitation over 14 days. In contrast, November brings a notable drop in temperatures, with a minimum of -3°C (28°F), an average of 7°C (45°F), and a maximum of 18°C (65°F). It sees lower precipitation levels of 57 mm (2.3 in) over 11 days, but the humidity rises to a higher 92%. For a detailed look at the typical weather patterns during this month, visit Genval weather in November.

August and December present contrasting weather patterns. In August, temperatures range from a cool 7°C (46°F) at night to a scorching 36°C (97°F) during the day, with an average of 19°C (66°F). The humidity is relatively high at 76%, and the month sees about 84 mm (3.3 in) of precipitation over 14 days. In stark contrast, December features much colder conditions, with temperatures dropping to a minimum of -4°C (24°F) and averaging around 5°C (42°F) during the day, peaking at a maximum of 15°C (59°F). The winter month brings about 92 mm (3.6 in) of precipitation spread over 17 days, accompanied by even higher humidity at 92%. For more details on December weather, visit Genval weather in December.

Compare Genval's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Genval

August in Genval presents a captivating shift in weather patterns, standing out with its warm embrace and occasional rain. With temperatures reaching a high of 36°C and an average warmth that invites outdoor activities, it's a month that offers a taste of summer's zenith. However, the increase in humidity, averaging 76%, adds a refreshing yet sticky feel to the air, making those hot days bearable. The frequent rain—spanning about 14 days—introduces a variety of cozy, cooler moments, a delightful contrast to the dry heat typically experienced in other months. This blend of warmth, humidity, and sporadic showers makes August a unique chapter in Genval’s climate narrative. For more details on what to expect throughout the year, explore Genval Climate.