Last updated: February 26, 2025
In Bonn, Germany, May serves as a dynamic transition into summer, characterized by temperatures ranging from a brisk 0°C (33°F) at night to a warm 33°C (91°F) during the day, with an average of 14°C (57°F). The month experiences 13 days of precipitation, accumulating around 70 mm (2.8 in), contributing to a humidity level of 77%. This mix of warmth and occasional rain creates a vibrant atmosphere, ideal for enjoying the blossoming nature while being prepared for fleeting showers.
In Bonn, Germany, May marks the transition to warmer weather, with temperatures reflecting a significant shift from the chill of winter. The month opens with a minimum temperature of 0°C (33°F), which gradually rises to a maximum of 33°C (91°F), showcasing May's ability to provide a delightful range. The average temperature of 14°C (57°F) invites outdoor activities, as locals and tourists alike embrace the blooming gardens and vibrant atmosphere. As a stark contrast to the preceding months, May's warmth hints at the approaching summer, drawing people out to enjoy longer, sunnier days. Notably, this month serves as a bridge, making it essential for Bonn's seasonal charm and outdoor culture.
May in Bonn, Germany, experiences a notable return to moderate rainfall with 70 mm (2.8 in) accumulated over 13 days. This marks a slight increase compared to the preceding month of April, which had only 36 mm. The precipitation pattern indicates a consistent trend throughout the spring, where April’s dry spells give way to wetter conditions in May. With the number of rainy days slowly on the rise, the shift towards more frequent showers heralds the approach of the summer months, as the city prepares for the heavier downpours that typically characterize July and August. This transition not only refreshes the landscape but also sets the stage for the vibrant growth of greenery that Bonn is known for during this time of year.
As the spring blooms in Bonn, May brings a notable shift in humidity levels, registering at 77%. This represents a significant drop from the 91% humidity of January, reflecting the gradual transition to warmer and drier conditions. While April sees a mild 84%, May advances further into a more comfortable range, making outdoor activities increasingly inviting. This trend of decreasing humidity continues into the early summer months, with June and July exhibiting even lower levels at 74% and 72%, respectively. The progression illustrates Bonn's movement from the dampness of winter to the refreshing warmth of summer, striking a perfect balance for enjoyment of the season.
As spring progresses into May, the UV Index in Bonn, Germany, sees a significant jump to 7, marking it as a high exposure category. This increase indicates a shift from the more moderate levels experienced in the preceding months, with burn times reducing to just 25 minutes for unprotected skin. This trend highlights the importance of sun protection as the days grow longer and sunnier. Following May, the UV Index peaks further in June and July, reaching 8 in both months, illustrating the urgent need to stay vigilant against harmful UV rays. Embrace the warmth, but don’t forget to protect your skin—stay informed with the latest updates on the Bonn UV Index to enjoy safe outdoor activities.
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May brings a delightful surge of sunshine to Bonn, Germany, with an impressive 390 hours of brilliant daylight. This month stands out as the zenith of spring, showcasing a remarkable increase from 341 hours in April. As the days grow longer and warmer, the sun's rays invigorate both nature and spirits alike. Following May, the sunshine continues unabated into June, peaking at 393 hours, while July reaches its pinnacle with 407 hours. The gradual transition to summer not only enhances outdoor activities but also amplifies the vibrant atmosphere of the city. It's clear that each month builds upon the last, ushering in a season filled with warmth and light, making Bonn a delightful destination for sunseekers.
As May unfolds in Bonn, Germany, the likelihood of sunny weather reflects a slight dip compared to the preceding months of spring, with a 31% chance of sunshine. After a promising rise from just 10% in January to a peak of 42% in March, the sun's visibility begins to stabilize, dropping slightly in April to 40%. Despite this moderation, May retains a favorable position in the seasonal transition, boasting better odds than the winter months and holding its own against the summer months that follow. Thus, while the month may not offer the highest sun potential, it still shines brighter than many of its colder counterparts, promising delightful days yet tinged with a hint of unpredictability.
As spring gives way to summer in Bonn, Germany, May shines particularly bright with an impressive 15 hours of daylight, showcasing a significant increase from the 13 hours in April. This upward trend continues into June, which enjoys the most daylight of the year at 16 hours. As the warmer months progress, the amount of daylight gradually decreases, with July seeing a slight dip to 15 hours. This pattern of increasing daylight from winter's 8 hours in January to the peak in June emphasizes the vibrant transition into the lush and lively summer season, before settling into the shorter days of fall. Overall, May serves as a perfect bridge, offering longer days that invite outdoor activities and mark a period of rejuvenation in Bonn's landscape.
In Bonn, Germany, the winds of May bring a refreshing change with an average speed of 3.5 m/s (8 mph), slightly higher than the preceding months of April and March. This increase hints at the onset of warmer days and a shift toward more dynamic weather patterns as spring transitions into summer. The winds in May stand resilient, aligned closely with the speeds observed in January, February, and October, creating a delightful consistency. Following this spring peak, however, the winds taper off in the summer months of June and July, where speeds drop to 2.4 m/s (5 mph) and 2.6 m/s (6 mph), respectively. This trend illustrates a seasonal rhythm where stronger winds give way to the gentle breezes of summer, inviting locals and visitors alike to enjoy the beautiful outdoors of Bonn.
The weather in Bonn changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May'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.
May and January showcase contrasting weather patterns. In May, temperatures range from a minimum of 0°C (33°F) to a pleasant average of 14°C (57°F), with peaks reaching up to 33°C (91°F). Meanwhile, January presents a chillier climate, with temperatures dipping as low as -8°C (18°F) and averaging at just 3°C (38°F), while the maximum hovers around 14°C (58°F). Both months experience similar levels of precipitation, with May seeing 70 mm (2.8 in) over 13 days and January slightly higher at 72 mm (2.8 in) over 14 days. Humidity also reveals a stark difference, as January records a higher level at 91%, compared to May's 77%. For more detailed insights, check out Bonn weather in January.
When comparing the weather in May and February, it becomes clear that May brings significantly warmer temperatures, with averages around 14°C (57°F) and maximums reaching up to 33°C (91°F). In contrast, February is much cooler, with an average temperature of just 5°C (41°F) and minimums plummeting to -10°C (14°F). Additionally, while both months experience similar levels of precipitation—70 mm (2.8 in) in May and 68 mm (2.7 in) in February—February tends to be slightly more humid at 90%, compared to May's 77%. For more detailed insights on February weather, you can visit Bonn weather in February.
When comparing the weather in May and March, we see a significant shift in temperatures and conditions. May experiences milder temperatures, with an average of 14°C (57°F) and maximums reaching up to 33°C (91°F), while March is cooler, averaging only 7°C (45°F) and peaking at 23°C (73°F). Precipitation levels are similar, with May seeing 70 mm (2.8 in) over 13 days and March slightly higher at 72 mm (2.8 in) across 15 days. Humidity also drops from March's 87% to May's 77%, marking a transition towards a warmer and drier climate. For more details on March weather, explore Bonn weather in March.
In comparing the weather conditions of May and April, it's clear that May generally brings warmer temperatures, with a minimum of 0°C (33°F) and an average of 14°C (57°F), compared to April's minimum of -3°C (26°F) and an average of 10°C (50°F). Additionally, May sees a maximum temperature that can reach up to 33°C (91°F), while April peaks at 27°C (81°F). Precipitation in May is higher, with 70 mm (2.8 in) spread over 13 days, compared to April's 36 mm (1.4 in) over 9 days. Humidity levels are slightly lower in May at 77% compared to 84% in April. For more information on April weather specifics, you can visit Bonn weather in April.
In May, temperatures range from a cool 0°C (33°F) to a warm 33°C (91°F), with an average of 14°C (57°F). This month sees a total precipitation of 70 mm (2.8 in) over about 13 days, contributing to a relatively high humidity of 77%. In contrast, June experiences milder minimum temperatures starting at 8°C (47°F) and peaks at 35°C (95°F), with an average temperature of 19°C (66°F). Precipitation in June is slightly lower, at 68 mm (2.7 in), occurring over just 11 days, and the humidity decreases to 74%. For more detailed information, visit Bonn weather in June.
In May, temperatures typically range from a chilly minimum of 0°C (33°F) to a warm maximum of 33°C (91°F), averaging around 14°C (57°F). While precipitation occurs on about 13 days, totaling 70 mm (2.8 in), the humidity remains relatively high at 77%. In contrast, July experiences milder minimum temperatures starting at 8°C (47°F) and soaring to an impressive maximum of 40°C (105°F), with an average of 20°C (67°F). Precipitation slightly increases to 93 mm (3.7 in) over 11 days, but humidity decreases to 72%. For more detailed information, check out Bonn weather in July.
May and August present distinct weather patterns, reflecting the transition from spring to summer. In May, temperatures range from a cool 0°C (33°F) at night to a warm 33°C (91°F) during the day, with an average of 14°C (57°F). The month experiences moderate rainfall, accumulating about 70 mm (2.8 in) over 13 days, paired with high humidity levels at 77%. In contrast, August enjoys milder nights with a minimum temperature of 7°C (44°F) and an average daytime temperature of 20°C (67°F), peaking at a sweltering 36°C (98°F). Although August sees slightly more precipitation at 80 mm (3.2 in) across 15 days, the humidity is lower at 71%, making the warmth feel a bit more comfortable. For further specifics, you can check Bonn weather in August.
May and September offer distinct yet pleasant weather experiences. In May, temperatures range from a chilly minimum of 0°C (33°F) to a warm maximum of 33°C (91°F), with an average temperature of 14°C (57°F). This month sees a total precipitation of 70 mm (2.8 in) over approximately 13 days, accompanied by a humidity level of 77%. In contrast, September typically has a minimum temperature of 2°C (36°F) and an average of 16°C (60°F), peaking at 34°C (93°F). The precipitation drops to 55 mm (2.2 in) across about 10 days, with slightly higher humidity at 81%. For more specifics on September weather, you can check this link: Bonn weather in September.
When comparing the weather in May and October, it's evident that both months present a range of temperatures, though they differ notably in averages and maximums. May showcases warmer weather, with average temperatures around 14°C (57°F) and highs reaching up to 33°C (91°F), while October's average dips slightly to 12°C (54°F), with maximums around 27°C (80°F). Precipitation levels are quite similar, with both months experiencing around 70 mm (2.8 in) of rain over approximately 13 to 14 days, yet October has a higher humidity level at 88% compared to May's 77%. For more detailed insights, you can check Bonn weather in October.
May and November showcase distinct weather patterns that highlight the transition from spring to winter. In May, temperatures range from a cool 0°C (33°F) to a warm 33°C (91°F), with an average of 14°C (57°F), and the month sees 70 mm (2.8 in) of precipitation over approximately 13 days, contributing to moderate humidity levels at 77%. In contrast, November experiences colder temperatures, with a minimum of -4°C (26°F) and a maximum of 20°C (69°F), averaging just 7°C (45°F). This month has lower precipitation at 54 mm (2.1 in) over 12 days but higher humidity at 91%. Overall, while May offers a mild and varied climate, November brings a stark chill, preparing for the winter ahead. For more details, you can check out Bonn weather in November.
May and December present contrasting weather patterns. In May, temperatures range from a pleasant minimum of 0°C (33°F) to a warm maximum of 33°C (91°F), with an average of 14°C (57°F). This month typically sees around 70 mm (2.8 in) of precipitation over 13 days, and humidity levels at 77%. In contrast, December offers a chillier climate with temperatures ranging from -5°C (23°F) at the low end to a maximum of 15°C (59°F), averaging just 5°C (41°F). This winter month receives more precipitation, totaling 100 mm (4.0 in) over 19 days, accompanied by higher humidity at 92%. For more details, check out the Bonn weather in December.
As spring transitions fully into summer, May in Bonn ushers in a delightful mix of warm temperatures and vibrant blooms, setting it apart from the chillier months that precede it. With an average temperature hovering around a comfortable 14°C, days can heat up to a balmy 33°C, allowing residents and visitors alike to enjoy outdoor activities. However, the month is not without its wet days, as approximately 13 days bring about 70 mm of rainfall, resulting in a pleasant humidity level of 77%. This combination of warmth and moisture creates the perfect backdrop for the lively atmosphere of the city during this time. Explore more about what to expect throughout the year in Bonn by visiting Bonn Climate.