July Weather in Uccle, Belgium

Last updated: August 21, 2025

In July, Uccle, Belgium experiences a striking range of temperatures, with a maximum soaring to 39°C (102°F) and a refreshing average of 19°C (66°F), while the nights can cool down to a minimum of 8°C (46°F). This month witnesses a total precipitation of 71 mm (2.8 in) spread over 11 days, contributing to the region’s humid atmosphere, which typically hovers around 80%. Such variability in weather not only makesthe month dynamic but also enriches the local landscape and activities for residents and visitors alike.

July Temperature in Uccle

In Uccle, Belgium, July marks the peak of summer, with temperatures soaring to an impressive max of 39°C (102°F). The month begins with a mild minimum of 8°C (46°F), gradually rising to a comfortable average of 19°C (66°F), making it the warmest month of the year. This substantial increase from the cooler months highlights a stark transition from the winter chill, as even June's maxima pales in comparison. The warmth of July fosters a lively atmosphere, inviting residents and visitors alike to enjoy the vibrant outdoor life typical of the season. With such high temperatures, Uccle transforms into a sunny playground, contrasting sharply with the chilly depths of January, where temperatures hover around freezing. The upward trend in July's temperatures underscores the importance of this month as a time for relaxation and exploration in Belgium's sun-kissed landscapes.

July Weather in Uccle: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Uccle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uccle, July 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).
JanFebMarAprMayJunJulAugSepOctNovDec394245505664666660544542
Data source: Temperature data for Uccle generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Uccle

In July, Uccle experiences a notable increase in precipitation, recording 71 mm (2.8 in) of rainfall over 11 days. This marks a slight rise from June's 66 mm, reflecting the shift into the heart of summer, where moisture tends to build. Unlike April’s dry spell, July balances warmth with frequent, albeit brief, downpours. As we move into August, expectations grow for an even wetter month, highlighted by 80 mm (3.2 in) of rain typically observed. This trend underscores the dynamic weather patterns experienced in Uccle during the summer months, where vibrant greenery thrives amidst seasonal rains.

July Precipitation Trends in Uccle

The chart displays monthly precipitation patterns in Uccle, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Uccle, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec656971375866718055765793
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Uccle

In Uccle, Belgium, the month of July sees humidity levels dip to 80%, marking a notable decline as summer progresses. This decrease follows a steady trend from a humid 91% in January to a slightly more comfortable 82% in both May and June. As the year unfolds, humidity peaks in the colder months, with November and December receiving the highest levels at 92%, while August manages to lower it to 76%, heralding a shift towards autumn. Overall, the progression of humidity in Uccle reflects the seasonal transitions, where warm summers offer a brief reprieve from the higher moisture levels typical of the colder months.

July Average Humidity in Uccle

This chart illustrates the average monthly humidity levels in Uccle, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Uccle 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 July generated using information from the Copernicus Climate Change Service.

July UV Index in Uccle

In Uccle, Belgium, July stands out with a UV Index of 8, placing it in the very high exposure category. This intensity, similar to June, signifies a significant risk for skin damage, with a rapid burn time of only 15 minutes under direct sunlight. The trend observed throughout the year reveals a gradual increase in UV radiation as spring transitions into summer, peaking in July before slightly receding in August. As July is synonymous with vibrant outdoor activities, it's crucial to take precautions against sun exposure during this time. For more detailed information on UV levels throughout the year, visit Uccle UV Index.

Maximum UV Index Levels in Uccle for July

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

July Sunshine in Uccle

In Uccle, Belgium, the month of July shines as a peak of radiance, boasting an impressive 406 hours of sunshine. This vibrant summer month transitions smoothly from the steadily increasing daylight seen in the earlier months—starting from a modest 121 hours in January to a radiant 398 hours in June. The sunshine hours not only reflect the warmth of the summer but also signal the gradual approach of autumn, as August dips to 379 hours. This trend highlights a delightful contrast in Uccle's climate, where the long days of summer invite both residents and visitors to bask in the outdoors, savoring the sun's embrace before the shorter days of fall set in.

Monthly Sunshine Duration in Uccle: July Highlighted

The July sunshine duration represents the total number of hours Uccle experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec121h200h266h346h394h398h406h379h319h240h190h143h
Data source: Uccle July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Uccle During July

In Uccle, Belgium, July offers a moderate 34% chance of sunny weather, making it one of the more favorable months for sun seekers. When compared to earlier months, July maintains a steady level of sunshine similar to June, which also reports a 33% chance. However, this slight increase from the spring months, where April peaks at 50%, suggests that summer is indeed on the horizon. While the sun may grace Uccle more frequently than in the winter months—where chances plummet to a mere 11% in January—July’s percentages indicate that sunshine isn't guaranteed. As the summer progresses into August, the likelihood dips to 29%, hinting that those sunny spells might be fleeting. Overall, while July presents a reasonable shot at sunshine, it remains a month where clouds can still easily share the sky with sunbeams.

Percentage of Sunny Days in July in Uccle

The chart illustrates the percentage of sunny days in Uccle throughout the year, with July 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 Uccle experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec11%30%40%50%33%34%34%29%36%32%24%16%
Data source: Uccle July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Uccle in July

In Uccle, Belgium, July experiences a delightful average of 15 hours of daylight, a slight dip from June's peak of 16 hours. This month marks the pinnacle of summer, where the long days allow residents to bask in extended sunlight. Following the gradual increase from the winter months—where daylight stretched just 8 hours in January—July's brightness showcases the transition into warmer days. As the year progresses towards August, daylight starts to wane slightly, with 14 hours anticipated, signaling the gradual shift towards the shorter days of autumn. This trend not only enriches the summer experience but also reminds us of the cyclical rhythm of nature as we move through the seasons.

Average Daylight Hours in Uccle for July

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

July Winds in Uccle

In July, Uccle, Belgium experiences an average wind speed of 3.3 m/s (7 mph), marking a slight uptick from June's calmer conditions, where winds barely nudged at 2.8 m/s (6 mph). This gentle breeze can offer a refreshing contrast to the warm summer days, inviting outdoor activities and leisurely strolls. Interestingly, July's winds remain consistent with the previous months, as they hover around the lower range of average speeds throughout the year, which peaks in the earlier months like January and October with stronger gusts. As summer unfolds, the overall trend shows a gradual decline in wind strength leading from April’s 3.4 m/s (8 mph) to July’s serene breezes, setting a tranquil atmosphere perfect for enjoying the beauty of the season.

Average July Wind Speed in Uccle

The chart displays monthly wind speed patterns in Uccle, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.64.03.44.42.83.3 m/s3.43.04.33.34.2
Data source: Uccle July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Uccle Compares to Other Months

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

July and January in Uccle showcase starkly contrasting weather conditions. In July, temperatures range from a minimum of 8°C (46°F) to a scorching maximum of 39°C (102°F), with an average temperature of 19°C (66°F). The month experiences around 71 mm (2.8 in) of precipitation over 11 days, and the humidity is notably high at 80%. In contrast, January boasts much colder weather, with temperatures ranging from a frigid minimum of -7°C (20°F) to a maximum of 14°C (57°F) and an average of just 4°C (39°F). Precipitation averages slightly lower at 65 mm (2.5 in) over 12 days, coupled with increased humidity of 91%. The significant difference in temperature and overall climate highlights the diverse seasons experienced in Uccle. For more detailed information, check out Uccle weather in January.

In July, temperatures can reach a scorching high of 39°C (102°F), with an average of 19°C (66°F) and a minimum of 8°C (46°F), making it a significantly warmer month compared to February, which sees a maximum of 19°C (66°F) and much colder minimums down to -8°C (17°F). Both months have similar levels of precipitation, with July receiving 71 mm (2.8 in) over 11 days and February receiving 69 mm (2.7 in) over one more day, though February's higher humidity at 89% contributes to a chillier feel. For a detailed overview of February weather, you can visit Uccle weather in February.

When comparing the weather in July and March, significant differences become apparent. July boasts much warmer temperatures, with averages around 19°C (66°F) and highs reaching up to 39°C (102°F), while March has a cooler average of 7°C (45°F) and maximum temperatures of 23°C (74°F). Additionally, both months experience similar precipitation levels, with July receiving 71 mm (2.8 in) over 11 days and March slightly lower at 70 mm (2.8 in) but spread across 14 days. Humidity levels are also higher in March at 87%, compared to July's 80%. For a more detailed look at March weather, check out Uccle weather in March.

When comparing the weather in July and April, it's evident that July is notably warmer. The average temperature in July reaches 19°C (66°F), with maximum temperatures soaring up to 39°C (102°F), while April's average is a cooler 10°C (50°F), peaking at 27°C (80°F). Additionally, July experiences more precipitation overall, totaling 71 mm (2.8 in) over about 11 days, compared to April's 37 mm (1.5 in) across 8 days. The humidity remains relatively high in both months, with July at 80% and April slightly higher at 85%. For a more detailed look at April weather, you can visit Uccle weather in April.

When comparing the weather in July and May, it's clear that July experiences significantly higher temperatures, with average highs reaching up to 39°C (102°F), compared to May's maximum of 31°C (88°F). The minimum temperature in July is also noticeably warmer at 8°C (46°F), while May starts at a cooler 1°C (33°F). However, May sees slightly less precipitation, with 58 mm (2.3 in) over 12 days, compared to July's 71 mm (2.8 in) over 11 days. Humidity levels are relatively similar, lingering around 80% in July and 82% in May. For more details about May weather, check Uccle weather in May.

In June, the weather in Uccle features a mild temperature range, with a minimum of 7°C (44°F) and a maximum of 32°C (91°F). The average temperature hovers around 18°C (65°F), and there are about 9 days of precipitation, totaling 66 mm (2.6 in), with humidity levels at 82%. In contrast, July sees warmer conditions, with minimum temperatures reaching 8°C (46°F) and maximum temperatures soaring up to 39°C (102°F). The average temperature increases to 19°C (66°F), and while precipitation slightly rises to 71 mm (2.8 in) over 11 days, humidity remains relatively steady at 80%. For a more detailed look at the June weather, you can visit Uccle weather in June.

In July, temperatures fluctuate significantly, with a minimum of 8°C (46°F), an average of 19°C (66°F), and a scorching maximum of 39°C (102°F). The month experiences 71 mm (2.8 in) of precipitation over 11 days, along with a high humidity level of 80%. In contrast, August shows slightly lower maximum temperatures, peaking at 36°C (97°F), while maintaining the same minimum and average temperatures as July. Precipitation increases to 80 mm (3.2 in) spread over 14 days, and humidity decreases slightly to 76%. For more information, visit Uccle weather in August.

In July, the weather is typically warmer, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 39°C (102°F), leading to an average of 19°C (66°F). The month sees significant rainfall—71 mm (2.8 in) over 11 days—combined with a high humidity level of 80%. In contrast, September experiences cooler conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 33°C (91°F), averaging at 15°C (60°F). Precipitation totals 55 mm (2.2 in) across 9 days, with a slightly higher humidity of 82%. This shift in weather reflects the transition from midsummer heat to the more temperate early autumn climate. For more details on September weather, visit Uccle weather in September.

In comparing the weather between July and October, it's evident that there is a significant drop in temperatures. July boasts a minimum of 8°C (46°F) and an average of 19°C (66°F), with highs reaching an impressive 39°C (102°F), while October sees temperatures dropping to a minimum of 1°C (34°F) and an average of 12°C (54°F), with a maximum of 25°C (77°F). Additionally, October experiences slightly higher precipitation levels at 76 mm (3.0 in) over 13 days, compared to July's 71 mm (2.8 in) over 11 days. The humidity also increases in October to 89%, up from 80% in July, indicating a shift toward cooler, wetter conditions as the year progresses. For more detailed information, you can visit Uccle weather in October.

In comparing the weather between July and November, one can see notable differences in temperature and humidity. July boasts a wide temperature range, with minimums of 8°C (46°F), average highs of 19°C (66°F), and maximum temperatures soaring up to 39°C (102°F). In contrast, November features much cooler temperatures, with minimums dropping to -2°C (28°F) and an average of 7°C (45°F), reaching a maximum of 18°C (65°F). While July experiences 71 mm (2.8 in) of precipitation over 11 days, November sees slightly less at 57 mm (2.2 in) for the same number of days, though the humidity is higher in November at 92% compared to July's 80%. For more detailed information, check Uccle weather in November.

July and December present striking contrasts in weather conditions. In July, temperatures range from a minimum of 8°C (46°F) to a scorching maximum of 39°C (102°F), with an average of 19°C (66°F). This summer month also sees around 71 mm (2.8 in) of precipitation over about 11 days and maintains a humidity level of 80%.

In contrast, December is much cooler, with temperatures varying from a minimum of -5°C (24°F) to a maximum of 15°C (59°F), averaging only 5°C (42°F). Precipitation increases to 93 mm (3.7 in) distributed over 17 days, and humidity rises slightly to 92%. For more specifics on December weather, you can check Uccle weather in December.

Compare Uccle's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Uccle

In Uccle, July stands out as a month of warmth, where temperatures can soar, occasionally reaching a sweltering 39°C. This contrasts sharply with the milder averages found in other months, which typically hover around 19°C. While July offers the excitement of summer heat, it also brings higher humidity levels at 80% and a notable amount of rainfall, as evidenced by 11 precipitation days throughout the month. The total rainfall of 71 mm adds to the lushness of the environment. For a deeper understanding of how Uccle's July weather compares to the rest of the year, explore more at Uccle Climate.