Last updated: February 26, 2025
In Bonn, Germany, July brings a delightful mix of warm temperatures and occasional summer showers. The average temperature hovers around 20°C (67°F), with peaks reaching a sizzling 40°C (105°F), while nights can cool down to a refreshing 8°C (47°F). During this month, residents and visitors can expect 93 mm (3.7 in) of rainfall, spread over approximately 11 days, contributing to a moderate humidity level of 72%. Whether exploring the city's picturesque landscapes or enjoying its vibrant culture, July in Bonn offers a captivating climate for all.
In Bonn, Germany, July emerges as a peak of warmth in the year, showcasing a striking range of temperatures that can soar to a sizzling 40°C (105°F). The month typically begins with a pleasant minimum of 8°C (47°F), laying the groundwork for an average temperature of 20°C (67°F) that beckons outdoor activities and summer festivities. This sizzling trend follows the increasingly warmer June, where temperatures can reach 35°C (95°F), signaling a clear shift toward a hot summer. As July unfolds, locals and visitors alike enjoy the sun-drenched days that characterize this vibrant month, with evening breezes providing a gentle respite from the daytime heat. Overall, July stands out as a highlight in Bonn’s climate, embodying the essence of summer with its warm embrace, inviting exploration and celebration.
In July, Bonn experiences a notable increase in precipitation, with an average of 93 mm (3.7 in) falling over 11 days. This marks the highest monthly total for the year, indicating a shift from the drier conditions of April, which received just 36 mm (1.4 in). The summer rains contribute to the region's lush greenery, but they also serve as a reminder of the transition from mild spring to the warmer summer months. Interestingly, the rainfall in July often paves the way for the slightly less rainy August, which sees 80 mm (3.2 in) across 15 days. Overall, July's precipitation reflects a pivotal moment in Bonn's climate cycle, bridging the gap between the gentle showers of spring and the more robust rains of late summer and early autumn.
In July, Bonn, Germany experiences a notable dip in humidity, with levels reaching 72%—the lowest point of the year. This trend reflects a gradual decline from the high humidity typical of the colder months, which sees figures hovering around 90% in January and February. As spring transitions into summer, humidity gradually decreases, offering a welcome respite from the previous dampness. By August, humidity slides further to 71%, hinting at a consistent summer pattern. However, as autumn approaches, humidity begins to rise again, culminating in higher figures by October and November. Overall, July represents a sweet spot in Bonn's climate, balancing warmth and a refreshing decrease in moisture.
In July, Bonn experiences a very high UV Index of 8, coinciding with the peak of summer. During this month, the potential for sunburn is significant, with a burn time of just 15 minutes for those with fair skin. This elevated UV level mirrors June's conditions, highlighting a trend toward increasingly intense sun exposure during the height of summer. As temperatures rise and the sun shines brighter, it’s crucial to take protective measures—such as applying sunscreen or wearing protective clothing—to safeguard against harmful UV rays. For more detailed information, visit Bonn UV Index.
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In the heart of summer, July shines brightest in Bonn, Germany, boasting an impressive 407 hours of sunshine. This peak follows a steady climb from the dreary winter months, where January's mere 111 hours hardly lifts spirits. As spring approaches, the daylight gradually increases, with each month revealing more blue skies—April sees 341 hours and June not far behind at 393 hours. However, July stands out as the pinnacle of sunny days, providing a vibrant backdrop for outdoor activities and gatherings. The warmth begins to recede in August, but even then, with 378 hours of sunshine, the summer remains a beloved season in Bonn. This delightful pattern underscores the city's transformation from a gray winter landscape to a sun-kissed summer retreat, inviting residents and visitors alike to revel in its warmth.
In Bonn, Germany, July offers a 31% chance of sunny weather, consistent with the preceding months of June and May, which also hover around the same percentage. This plateau suggests that while summer may not guarantee clear skies every day, it certainly holds a notable opportunity for sunny spells. Interestingly, if we look at the trend over the year, we see a gradual increase in sunshine likelihood from the post-winter months, peaking around September when the sun’s chances rise to 38%. With these statistics in mind, July can be seen as a time where residents and visitors alike can look forward to pleasant bursts of sunshine, perfect for enjoying the vibrant splendor of Bonn’s summer landscapes.
In Bonn, Germany, the month of July marks a slight transition in daylight hours, offering an average of 15 hours of bright sunshine. This figure reflects a gradual decline from the peak of 16 hours enjoyed in June, highlighting a subtle shift as summer progresses. Following the lush days of May and June, where daylight reaches its zenith, July sets the stage for the slower onset of autumn. Interestingly, August continues this trend with 14 hours of daylight, before daylight begins to wane more noticeably in September. Overall, July serves as a delightful midpoint, balancing the longest days of summer with the subtle reminder of the approaching fall.
In July, Bonn, Germany experiences a mild breeze with an average wind speed of 2.6 m/s (6 mph), slightly picking up from the previous month. This gentle airflow mirrors a summer trend in the region, where winds generally tend to be at their lowest during the warmer months. While June recorded a mere 2.4 m/s, July's slight increase signals a subtle shift as the summer unfolds. Comparatively, the winter months boast higher averages, often exceeding 3.5 m/s, indicating that the warmer season is typically characterized by calmer winds. As we move towards August, a slight uptick to 2.9 m/s suggests a lingering warmth, making these a perfect time for leisurely outdoor activities in the serene backdrop of Bonn’s summer landscape.
The weather in Bonn changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Bonn and find detailed weather information for every month.
In July, the weather is characterized by warm temperatures, with a minimum of 8°C (47°F) and an average of 20°C (67°F), peaking at a hot 40°C (105°F). This month also experiences higher humidity levels, averaging 72%, along with 93 mm (3.7 in) of precipitation over 11 days. In sharp contrast, January brings much colder conditions, with temperatures ranging from a minimum of -8°C (18°F) to an average of just 3°C (38°F), and a maximum of 14°C (58°F). Although it is drier than July, January still sees 72 mm (2.8 in) of precipitation spread over 14 days, accompanied by higher humidity at 91%. For more details, you can check out Bonn weather in January.
When comparing the weather in July and February, it’s clear that the two months offer vastly different climates. July experiences much warmer temperatures, with a minimum of 8°C (47°F) and peak highs reaching a scorching 40°C (105°F), while February's temperatures range from a chilly -10°C (14°F) to a maximum of 21°C (69°F). Precipitation levels are slightly higher in July at 93 mm (3.7 in) over 11 days, compared to February's 68 mm (2.7 in) over 12 days. Additionally, July's humidity stands at 72%, notably lower than February's 90%, contributing to the overall distinct seasonal feel. For a deeper insight into February's weather patterns, you can visit Bonn weather in February.
In comparing the weather of July and March, significant differences emerge. July experiences a much warmer climate, with average temperatures around 20°C (67°F) and highs reaching up to 40°C (105°F), while March remains chilly, averaging just 7°C (45°F) with maximums of 23°C (73°F). Precipitation is more frequent in March, occurring on 15 days with a total of 72 mm (2.8 in), compared to July's 11 days and 93 mm (3.7 in). Additionally, the humidity is noticeably higher in March at 87%, compared to July's 72%. For more detailed insights, check out Bonn weather in March.
When comparing the weather in July and April, July is notably warmer with average temperatures reaching 20°C (67°F) and highs peaking at 40°C (105°F), while April sees much cooler conditions with an average of 10°C (50°F) and a maximum of 27°C (81°F). July also experiences higher precipitation, with 93 mm (3.7 in) over 11 days, compared to April's 36 mm (1.4 in) over 9 days. Additionally, humidity levels in July are relatively high at 72%, whereas April has a slightly higher humidity at 84%. For more details on the weather specifics for April, you can check Bonn weather in April.
July and May exhibit contrasting weather patterns, characterized by significant differences in temperature and precipitation. July boasts a wider temperature range, with minimums around 8°C (47°F), averages at 20°C (67°F), and maximums soaring up to 40°C (105°F), creating a generally warm and sometimes scorching environment. In contrast, May experiences milder conditions, with minimum temperatures dropping to 0°C (33°F), an average of 14°C (57°F), and maximums reaching 33°C (91°F).
Rainfall is more prominent in July, recording 93 mm (3.7 inches) of precipitation over 11 days, while May sees slightly less rain at 70 mm (2.8 inches) across 13 days. Despite July's lower humidity at 72%, May's higher humidity level of 77% often contributes to a cooler overall sensation despite the warmer temperatures. For a closer look at May's weather, you can check out Bonn weather in May.
In comparing the weather of July and June, July experiences slightly warmer average temperatures, with a lower minimum temperature of 8°C (47°F) and a higher maximum reaching up to 40°C (105°F), compared to June's maximum of 35°C (95°F). The average temperature in July is around 20°C (67°F), just a degree higher than June's average of 19°C (66°F). Precipitation levels in July are higher, with 93 mm (3.7 in) falling over 11 days, compared to June's 68 mm (2.7 in) over the same number of days. Interestingly, humidity levels slightly decrease from June to July, settling at 72% in July versus 74% in June. For more specific insights into June weather, you can refer to Bonn weather in June.
In July, temperatures range from a minimum of 8°C (47°F) to a scorching maximum of 40°C (105°F), while August sees slightly cooler temperatures, with a minimum of 7°C (44°F) and a maximum of 36°C (98°F). Both months have the same average temperature of 20°C (67°F), but July experiences more extreme heat. Precipitation is higher in July at 93 mm (3.7 in) over 11 days compared to August's 80 mm (3.2 in) spread out over 15 days, indicating a wetter month despite slightly less overall rainfall. Humidity levels remain similar, with July at 72% and August at 71%. For more information on weather patterns during this time, you can check out Bonn weather in August.
In July, the weather is characterized by warmer temperatures, with minimums around 8°C (47°F) and maximums reaching up to 40°C (105°F), resulting in an average of 20°C (67°F). The month experiences significant rainfall with 93 mm (3.7 in) spread over 11 days, and humidity levels hover around 72%. In contrast, September sees a noticeable drop in temperatures, with minimums of 2°C (36°F) and average highs of 34°C (93°F), leading to an average temperature of 16°C (60°F). Precipitation decreases to 55 mm (2.2 in) over 10 days, while humidity increases slightly to 81%. For more details, check Bonn weather in September.
In July, temperatures soar with a minimum of 8°C (47°F) and an average of 20°C (67°F), reaching highs of up to 40°C (105°F). The month also sees considerable precipitation, totaling 93 mm (3.7 in) across 11 rainy days, accompanied by a humidity level of 72%. In contrast, October brings cooler temperatures, with a minimum of 0°C (33°F) and an average of 12°C (54°F), peaking at 27°C (80°F). During this month, precipitation diminishes slightly to 71 mm (2.8 in) over 14 days, but the humidity rises to 88%. For more detailed information, you can check Bonn weather in October.
July and November present contrasting weather conditions. In July, temperatures soar, with averages around 20°C (67°F) and maximums reaching up to 40°C (105°F), accompanied by relatively high humidity at 72%. This month experiences significant precipitation, totaling 93 mm (3.7 in) over about 11 days. In stark contrast, November sees much cooler temperatures, with averages plummeting to 7°C (45°F) and minimums dropping to -4°C (26°F). Precipitation decreases to 54 mm (2.1 in), spread over 12 days, but humidity rises to a notable 91%. For more insights about the weather in November, you can refer to Bonn weather in November.
July and December exhibit stark contrasts in weather. July brings warmer temperatures, with an average of 20°C (67°F) and highs reaching up to 40°C (105°F), making it a hot and humid month with 72% humidity. In contrast, December is much colder, with average temperatures around 5°C (41°F) and lows dipping to -5°C (23°F), providing a distinctly chilly atmosphere. Both months experience significant precipitation, with July receiving 93 mm (3.7 in) over 11 days, while December has slightly more at 100 mm (4.0 in) across 19 days. For a detailed look at what to expect, check out Bonn weather in December.
July in Bonn is characterized by its warm temperatures and a noticeable increase in humidity compared to other months. With average highs reaching a sweltering 40°C and lows dipping to a refreshing 8°C, this month offers a vibrant contrast to the cooler seasons. While July sees some precipitation, with about 11 days of rain, the overall atmosphere remains balmy, making it a popular time for outdoor activities. The 72% humidity adds a tropical feel that can be both invigorating and challenging. For a deeper understanding of Bonn's climatic patterns throughout the year, explore Bonn Climate.