Last updated: August 21, 2025
In Zaventem, Belgium, July unveils a tapestry of weather that combines warmth and humidity. Temperatures soar to a striking maximum of 39°C (103°F), while the average temperature settles at a comfortable 19°C (67°F), allowing for a mix of summer activities. However, the month also sees cooler nights, with minimum temperatures dipping to 8°C (47°F). Precipitation adds a twist, with 71 mm (2.8 in) over 10 days, creating a humid atmosphere that averages around 80%. This combination of heat, cooling nights, and refreshing rain makes July in Zaventem a month of varied, yet fascinating weather experiences.
In July, Zaventem, Belgium experiences its warmest temperatures of the year, with a notable average of 19°C (67°F). The month can see impressive highs that occasionally soar to 39°C (103°F), making it a peak time for summer activities. The minimum temperature remains relatively mild at 8°C (47°F), creating warm evenings perfect for outdoor gatherings. Following the warmer months of June, where temperatures also reached into the high 30s, July continues this trend of heat, offering a brief but vibrant summer season that contrasts sharply with the frigid winter months. As the days grow longer and the sun shines bright, residents and visitors alike revel in the lively atmosphere that July brings to this charming Belgian town.
In July, Zaventem experiences an uptick in precipitation, with an average of 71 mm (2.8 in) of rainfall spread over 10 days. This marks a noticeable increase from both the preceding month and the months that follow, highlighting July as one of the wetter periods of the year. The rain shifts from the relatively lower totals of April (35 mm) and May (57 mm) to a more substantial downpour, setting the stage for the wetter conditions seen in August. The consistent rainfall not only nourishes the vibrant summer foliage but also contributes to the lush landscape that characterizes the region during this season. The transition from June’s 64 mm demonstrates a gradual increase, reflecting warm summer storms that often accompany longer daylight hours, making July a key month for understanding Zaventem's climatic rhythm.
In Zaventem, Belgium, July marks a notable shift in humidity levels, averaging at 80%, which represents a gradual decline from the wetter months earlier in the year. Beginning with the peak humidities of 91% in January and 89% in February, Zaventem's air gradually becomes more comfortable as spring arrives, dropping to 82% in both May and June. This trend continues into July, where the humidity dips to its lowest point for the summer months, before rising again in the subsequent months. Notably, August follows suit with a further decrease to 76%, highlighting a seasonal pattern of declining humidity during the heart of summer. This overall trend contributes to a more pleasant atmosphere, making July a more enjoyable month for outdoor activities in the region.
In July, Zaventem experiences a peak UV Index of 8, maintaining a very high exposure category, similar to June. The increased intensity of the sun during this month means residents and visitors should be particularly vigilant, as the recommended burn time is reduced to just 15 minutes. This trend of heightened UV levels continues into August, where the index dips slightly to 7 but remains in the high category. As summer progresses, the return to moderate UV levels in September signifies a welcome respite before the year winds down, making July a critical month for sun protection. For detailed information on UV exposure throughout the year, visit Zaventem UV Index.
UV Risk Categories
In Zaventem, Belgium, July shines brightly with an impressive 411 hours of sunshine, marking it as the sunniest month of the year. This peak is a delightful continuation of the upward trend that begins in January, where sunlight hours gradually increase from a modest 120 hours. As the year progresses, each month brings more warmth, culminating in a glorious summer. June and July stand out with nearly equal sunshine hours, fostering a vibrant atmosphere perfect for outdoor activities. However, as the summer wanes, the hours gradually dip through August and into the autumn months, highlighting the stark contrast between the sun-soaked peaks of July and the cooler, dimmer days that follow. This seasonal shift illustrates not just the ebb and flow of sunlight but also the beauty of Zaventem's climate throughout the year.
In Zaventem, Belgium, the prospects for sunny weather in July stand at around 34%, mirroring the somewhat cloudy atmospheres of June and September, which also share the same likelihood. While this summer month typically offers more sunshine compared to the drearier winters, it does not reach the higher sunny probabilities seen in the spring months, where April leads with 47%. It's interesting to note that, despite drops in sunshine chances during August and the transitional months that follow, July still holds a favorable position overall as a prime time for outdoor activities. Therefore, while the sun may not always dominate the July skies, there’s a solid chance of enjoying its golden rays amidst the occasional cloud cover.
In Zaventem, Belgium, the daylight duration experiences a remarkable transformation throughout the year, peaking in the summer months. July, with its 15 hours of daylight, marks a slight decline from June's impressive 16 hours, yet it still offers ample sunlight for outdoor activities and long, vibrant evenings. As the seasons shift, daylight gradually wanes, with August following closely with 14 hours and September dropping to 12 hours. The transition into autumn brings shorter days, with daylight dipping to 10 hours in October and further diminishing through the colder months of November and December, where it reaches a mere 8 hours and 7 hours, respectively. This gradual cycle highlights the contrast between Zaventem's bright summer days and the serene, shorter days of winter, illustrating the region’s rich seasonal diversity.
In Zaventem, Belgium, July brings a gentle breeze, with an average wind speed of 3.2 m/s (7 mph), mirroring the conditions of August. This slight uptick from June, where winds were at their lowest for the year at 2.7 m/s (6 mph), signals a modest revival as summer peaks. Overall, the progression of wind speeds throughout the year showcases a fluctuating but predictable rhythm, with winter months typically offering stronger gusts, particularly in January and October, while the summer months tend to settle into calmer breezes. As the season progresses, the July winds invite leisurely afternoons, making it an ideal time for outdoor activities against a backdrop of pleasant summer warmth.
Weather in Zaventem varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Zaventem, focusing on differences in temperature, rainfall, humidity, and UV levels.
July and January present vastly different weather experiences in Zaventem. In July, temperatures range from a cool 8°C (47°F) to a sweltering 39°C (103°F), with an average of 19°C (67°F). The month sees approximately 71 mm (2.8 in) of rainfall over about 10 days, accompanied by a humidity level of 80%, making it feel quite warm and sticky. In contrast, January brings a much chillier climate with temperatures ranging from a low of -6°C (21°F) to a high of 14°C (58°F), averaging around 4°C (40°F). The precipitation is slightly less at 62 mm (2.4 in), spread over 11 days, and the humidity is higher at 91%, contributing to a colder and more brisk atmosphere. For more details, check out Zaventem weather in January.
The weather in July is characterized by much warmer temperatures, with a minimum of 8°C (47°F) and an average of 19°C (67°F), reaching a scorching maximum of 39°C (103°F). In contrast, February experiences much colder conditions, where temperatures can dip as low as -9°C (16°F) and rarely exceed 19°C (66°F), with an average of just 6°C (42°F). Despite July having slightly more rainfall (71 mm) over a shorter number of days (10), February's precipitation is also significant at 67 mm, albeit spread across 12 days. Additionally, February tends to be more humid, averaging 89% compared to July's 80%. For more details on February conditions, visit Zaventem weather in February.
The weather in July and March presents a striking contrast in temperature and humidity levels. July boasts a warm average temperature of 19°C (67°F), with highs reaching up to 39°C (103°F), making it the hottest month. In contrast, March offers a much cooler average of 7°C (46°F), with temperatures peaking at 23°C (74°F). Precipitation is relatively similar in both months, with July seeing 71 mm (2.8 in) over 10 days and March recording 68 mm (2.7 in) but spread over 13 days. Humidity is slightly higher in March at 87% compared to July’s 80%. For more detailed insights into March weather, visit Zaventem weather in March.
When comparing the weather in July and April, it's clear that July is significantly warmer and more humid. In July, temperatures range from a minimum of 8°C (47°F) to a blistering maximum of 39°C (103°F), with an average of 19°C (67°F). This month sees a higher level of precipitation, totaling 71 mm (2.8 in) over about 10 days. In contrast, April experiences much cooler conditions, with temperatures varying from -4°C (26°F) to a maximum of 28°C (82°F) and averaging around 10°C (51°F). Precipitation is less frequent in April, totaling 35 mm (1.4 in) over 7 days, despite a slightly higher humidity level of 85%. For more detailed insights, you can explore Zaventem weather in April.
July and May present distinct weather patterns in Zaventem. July tends to be significantly warmer, with average temperatures reaching 19°C (67°F) and highs soaring up to 39°C (103°F). In contrast, May boasts a milder climate, where temperatures average around 14°C (57°F) and peak at 32°C (89°F). While July sees slightly more precipitation, with 71 mm (2.8 in) over 10 days, May experiences 57 mm (2.3 in) across 12 days. Furthermore, humidity levels are comparable, with July at 80% and May at 82%. For a closer look at the May climate specifics, check out Zaventem weather in May.
In comparing the weather between June and July, July tends to be significantly warmer, with average temperatures rising to 19°C (67°F) compared to June's 18°C (65°F). The maximum temperature in July can reach a scorching 39°C (103°F), while June sees a much milder maximum of 33°C (92°F). However, both months experience relatively high humidity, hovering around 80% in July and slightly higher at 82% in June. Precipitation levels are also comparable, with July receiving 71 mm (2.8 in) over 10 days, while June sees 64 mm (2.5 in) across 9 days. For a more detailed look at June's weather patterns, you can check Zaventem weather in June.
In July, temperatures range from a minimum of 8°C (47°F) to a scorching maximum of 39°C (103°F), with an average temperature of 19°C (67°F). The month sees about 71 mm (2.8 in) of precipitation spread over 10 days, accompanied by a high humidity level of 80%. In contrast, August experiences slightly cooler conditions, with maximum temperatures reaching 36°C (96°F), while still maintaining the same minimum and average temperatures as July. Precipitation increases to 74 mm (2.9 in) over 13 days, with humidity slightly lower at 76%. For more detailed information, visit Zaventem weather in August.
In comparing the weather between July and September, July is characterized by higher temperatures, with averages around 19°C (67°F) and maximums reaching up to 39°C (103°F). The month also sees a fair amount of rainfall, with 71 mm (2.8 in) spread over 10 days, and humidity levels are relatively high at 80%. In contrast, September experiences cooler conditions, with an average temperature of 16°C (60°F) and maximums of 33°C (93°F). Precipitation is slightly lower at 50 mm (2.0 in) across 9 days, and humidity increases slightly to 82%. For more detailed information, you can visit Zaventem weather in September.
July and October exhibit quite distinct weather patterns. In July, temperatures range from a cool 8°C (47°F) at night to a sweltering high of 39°C (103°F) during the day, with an average temperature of 19°C (67°F). The month experiences significant humidity at 80% and receives 71 mm (2.8 in) of precipitation over approximately 10 days. In contrast, October brings cooler temperatures, with a minimum of 2°C (35°F), an average of 13°C (55°F), and a maximum of 26°C (79°F). The month sees slightly higher precipitation at 77 mm (3.0 in) over about 12 days, accompanied by increased humidity of 89%. For more detailed information about October's weather, you can refer to Zaventem weather in October.
July and November present stark contrasts in weather conditions. In July, temperatures range significantly, with a minimum of 8°C (47°F) and a maximum reaching up to 39°C (103°F), resulting in an average temperature of 19°C (67°F). The month experiences considerable humidity at 80% and receives 71 mm (2.8 in) of rainfall over approximately 10 days. Conversely, November sees much colder temperatures, with a minimum of -3°C (28°F) and an average of only 7°C (46°F), while the maximum temperature aligns more closely with July's average at 19°C (66°F). Precipitation decreases slightly to 53 mm (2.1 in) but remains consistent, also falling on about 10 days, with humidity rising to 92%. For more specific insights, you can check Zaventem weather in November.
July and December present stark contrasts in weather conditions. In July, temperatures range from a mild 8°C (47°F) to a scorching maximum of 39°C (103°F), with an average temperature of 19°C (67°F). The humidity sits at a comfortable 80%, and rainfall occurs on approximately 10 days, totaling 71 mm (2.8 in). In contrast, December sees much chillier temperatures, with a minimum of -5°C (23°F) and a maximum of 15°C (60°F), averaging around 6°C (42°F). The month is also wetter, with precipitation recorded at 88 mm (3.5 in) over 16 days, and humidity levels rising to 92%. For more details on December weather, you can visit Zaventem weather in December.
In July, Zaventem experiences a unique blend of warmth and humidity that sets it apart from other months. With maximum temperatures soaring to a sweltering 39°C (103°F) and an average of 19°C (67°F), this summer month offers a notable contrast to the cooler, wetter periods of autumn and winter. While rainfall is moderate with about 71 mm over 10 days, the increased humidity at 80% can make the heat feel even more intense. Whether you're seeking sunshine or a cool breeze, July is undoubtedly an intriguing time to explore Zaventem. For more insights on the weather patterns throughout the year, visit Zaventem Climate.