June Weather in Bonn, Germany

Last updated: February 26, 2025

June in Bonn, Germany showcases a delightful mix of warm temperatures and moderate humidity, making it an ideal time for outdoor activities. With a maximum peak reaching 35°C (95°F) and an average temperature of 19°C (66°F), residents and visitors can enjoy comfortably warm days and refreshing evenings. However, a minimum of 8°C (47°F) reminds us of the cooler moments that may arise. This month also sees 68 mm (2.7 in) of rainfall spread across approximately 11 days, contributing to the lush greenery the region is known for. The average humidity sits at a moderate 74%, creating a pleasing atmosphere for enjoying Bonn's vibrant outdoor life.

June Temperature in Bonn

June in Bonn, Germany ushers in the warmth of summer, showcasing a noticeable shift from the chill of winter and spring. With minimum temperatures starting at a mild 8°C (47°F) and peaking at a scorching 35°C (95°F), the month averages around 19°C (66°F), making it one of the most inviting times to explore the city. This dramatic increase in temperatures not only highlights the transition to warmer weather but also sets the stage for lush outdoor activities and vibrant local events. By comparison, the gradual rise from January's frigid highs of just 14°C (58°F) exemplifies the significant change in Bonn's climate. June stands out as a month of possibilities, where long, sunny days beckon residents and visitors alike to embrace the festive atmosphere sweeping through the streets.

June Weather in Bonn: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Bonn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec384144505766676760544541
Data source: Temperature data for Bonn 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.

June Precipitation in Bonn

In June, Bonn experiences a slight increase in precipitation, averaging 68 mm (2.7 in) over 11 days, reflecting a pattern seen in the months prior. This aligns closely with May's rainfall, maintaining the region's overall wet climate as it transitions into summer. Following the notably dry April with only 36 mm, June's precipitation ensures lush greenery thrives, while July typically brings even heavier rains at 93 mm (3.7 in), indicating a trend of increasing rainfall as temperatures rise. Such consistent moisture levels not only enhance the natural beauty of Bonn but also highlight the city’s temperate maritime climate, where the risk of occasional downpours keeps the landscape vibrant.

June Precipitation Trends in Bonn

The chart displays monthly precipitation patterns in Bonn, with values for each month alongside June's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec7268723670689380557255100
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Bonn

In June, Bonn, Germany experiences a notable shift in humidity levels, with the figure dropping to 74%. This decline marks a significant transition from the consistently high humidity of the winter months, where January and February hover around 91% and 90%, respectively. As spring advances, moisture levels gradually lessen, reaching 77% in May. The trend continues into the summer, with July and August witnessing even lower humidity levels of 72% and 71%. This gradual decrease creates a more comfortable atmosphere for residents and visitors alike, setting the stage for warm, enjoyable summer days ahead.

June Average Humidity in Bonn

This chart illustrates the average monthly humidity levels in Bonn, with June's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how June's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Bonn

In Bonn, Germany, June marks a significant shift in UV exposure, reaching a UV Index of 8 which categorizes it as very high. This increase from May’s Index of 7 highlights the importance of sun protection during this time, as the burn time plummets to just 15 minutes. Following the trend observed in July, residents and visitors should remain vigilant, since both months demand similar precautions against skin damage. As summer unfolds, it's essential to stay informed about the UV index to enjoy the outdoors safely. For more detailed information, check out the Bonn UV Index.

Maximum UV Index Levels in Bonn for June

The chart shows the monthly maximum UV Index (UVI) for Bonn in June, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Bonn June 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.

June Sunshine in Bonn

June in Bonn, Germany, marks a delightful apex in daylight as the city basks in 393 hours of sunshine, setting the stage for a vibrant summer. This peak is part of a steady upward trend that begins in January with a mere 111 hours, gradually blossoming as spring approaches. By the time May arrives, residents and visitors are already enjoying 390 hours of sun, making June's ever-so-slight increase a welcome invitation to outdoor festivities. Following June, the sunshine tailors off slightly into July and August, but the warmth and brightness linger, providing ample opportunity to indulge in the scenic beauty and cultural gems of Bonn. All in all, June embodies the essence of summer, where long sunny days create a tapestry of vibrant life and energetic pursuits.

Monthly Sunshine Duration in Bonn: June Highlighted

The June sunshine duration represents the total number of hours Bonn experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec111h203h266h341h390h393h407h378h314h232h179h126h
Data source: Bonn June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bonn During June

In Bonn, Germany, the likelihood of sunny weather in June stands at 31%, reflecting a continuation of moderate sunshine that characterizes the late spring into summer transition. This percentage closely mirrors the sunshine probabilities seen in both May and July, indicating a stable trend in June's weather patterns. Notably, while the chance of sun remains consistent across these months, it marks a significant improvement from the winter months, where chances plummet to as low as 10% in January. As the year progresses, the likelihood of sun gradually increases, peaking in the late summer, which suggests that June simply maintains this comfortable, yet somewhat unpredictable, equilibrium of sunshine as nature shifts into the warmer months.

Percentage of Sunny Days in June in Bonn

The chart illustrates the percentage of sunny days in Bonn throughout the year, with June 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 Bonn experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec10%32%42%40%31%31%31%33%38%30%24%14%
Data source: Bonn June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bonn in June

In Bonn, Germany, the daylight duration sees a stunning transformation as the year progresses. Starting with a modest 8 hours in January, the days gradually lengthen, reaching 10 hours by February and 11 hours in March. As spring unfolds, daylight increases significantly, peaking at an inviting 16 hours in June. This vibrant month marks the pinnacle of sunlight, creating the perfect backdrop for outdoor activities and exploring the city's beautiful parks. Following June, daylight begins to wane, with July maintaining 15 hours but slipping to 14 hours in August. By the time autumn arrives, Bonn's daylight returns to more subdued hours, highlighting a rhythmic cycle of light and dark that beautifully encapsulates the changing seasons.

Average Daylight Hours in Bonn for June

The chart illustrates the variation in daylight duration in Bonn throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 30m10h 2m11h 55m13h 51m15h 31m16h 24m15h 56m14h 25m12h 34m10h 39m8h 56m8h 1m
Data source: Bonn daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Bonn

In June, Bonn experiences a noticeable dip in wind speed, averaging 2.4 m/s (5 mph)—the lowest of the year. This gentle breeze marks a shift from the slightly stronger winds of the earlier months, where May peaked at 3.5 m/s (8 mph). As summer unfolds, the calming winds of June set a serene backdrop, inviting residents and visitors to soak in the warmth and beauty of the season. Interestingly, this pattern of decreasing wind persists into July and August, with a slight uptick in speed come the cooler autumn months. Overall, June’s tranquil conditions contribute to Bonn's charm, offering a peaceful respite before the winds rejuvenate later in the year.

Average June Wind Speed in Bonn

The chart displays monthly wind speed patterns in Bonn, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.63.73.43.03.52.4 m/s2.62.92.23.72.73.5
Data source: Bonn June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Bonn Compares to Other Months

The weather in Bonn changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June'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.

June and January present stark contrasts in weather. June boasts much warmer temperatures, with averages around 19°C (66°F) and highs reaching up to 35°C (95°F). In contrast, January's temperatures are significantly cooler, averaging only 3°C (38°F) and struggling to reach a maximum of 14°C (58°F). While June experiences moderate rainfall of 68 mm (2.7 in) over 11 days, January is slightly wetter with 72 mm (2.8 in) spread across 14 days, though the humidity is higher in January at 91%. For detailed weather insights, you can explore Bonn weather in January.

June and February present stark contrasts in weather. In June, temperatures range from a chilly 8°C (47°F) at night to a warm maximum of 35°C (95°F), with an average of 19°C (66°F). The month sees about 68 mm (2.7 in) of precipitation over 11 days, accompanied by a humidity level of 74%. In contrast, February experiences much colder temperatures, with a minimum of -10°C (14°F) and a maximum of 21°C (69°F). The average temperature is only 5°C (41°F), and while precipitation remains at 68 mm (2.7 in), it occurs over 12 days with a higher humidity of 90%. For more details, you can check Bonn weather in February.

When comparing the weather between March and June, it's evident that June offers a much warmer and more varied temperature range. In June, temperatures can range from a cool 8°C (47°F) at night up to a sweltering 35°C (95°F) during the day, with an average of 19°C (66°F). In contrast, March experiences much cooler conditions, with temperatures ranging from a low of -10°C (15°F) to a maximum of 23°C (73°F) and an average temperature of only 7°C (45°F). Both months have a significant amount of precipitation, with June seeing about 68 mm (2.7 in) over 11 days and March slightly higher with 72 mm (2.8 in) over 15 days. Additionally, humidity levels are higher in March at 87%, compared to June's 74%. For more specific details on March weather, you can visit Bonn weather in March.

In comparing the weather between April and June, notable differences emerge. June typically experiences a broader temperature range, with minimums around 8°C (47°F) and maximums reaching up to 35°C (95°F), resulting in an average of 19°C (66°F). In contrast, April's temperatures are cooler, ranging from a minimum of -3°C (26°F) to a maximum of 27°C (81°F), averaging at 10°C (50°F). While June is characterized by higher precipitation totals—68 mm (2.7 in) over 11 days—April has less, with only 36 mm (1.4 in) over 9 days. Interestingly, April maintains a slightly higher humidity level at 84%, compared to June's 74%. For more information on April's weather specifics, visit Bonn weather in April.

When comparing the weather in June to that of May, we see a significant increase in temperature. June boasts a minimum temperature of 8°C (47°F), an average of 19°C (66°F), and can reach highs of 35°C (95°F), making it considerably warmer than May, which has a minimum of 0°C (33°F), an average of 14°C (57°F), and a maximum of 33°C (91°F). Despite June's warmer averages, both months experience similar levels of precipitation, with June recording 68 mm (2.7 in) over 11 days and May slightly more at 70 mm (2.8 in) spread over 13 days. Humidity levels are also fairly close, with June at 74% and May at 77%. For more detailed information on May weather specifics, visit Bonn weather in May.

June and July in Bonn exhibit some noteworthy weather differences. While June experiences an average temperature of 19°C (66°F), July slightly edges this out with an average of 20°C (67°F). However, July can reach higher maximum temperatures, soaring up to 40°C (105°F) compared to June’s peak of 35°C (95°F). In terms of precipitation, July sees an increase with 93 mm (3.7 in) over 11 days, whereas June has 68 mm (2.7 in) under the same number of rainy days. Despite July being slightly drier in humidity at 72% compared to June's 74%, it clearly presents a more intense heat. For more details on July's weather, visit Bonn weather in July.

When comparing the weather in June and August, both months showcase warm temperatures, with average highs reaching 35°C (95°F) in June and slightly higher at 36°C (98°F) in August. June tends to have a broader temperature range, with minimums of 8°C (47°F), while August has slightly lower minimums at 7°C (44°F). Precipitation increases in August to 80 mm (3.2 in) over 15 days, compared to June's 68 mm (2.7 in) across 11 days, indicating a wetter month. Despite this, humidity levels remain relatively similar, with June at 74% and August at 71%. For those looking to explore more about August weather specifically, you can check out Bonn weather in August.

June and September exhibit notable differences in weather patterns, despite both months enjoying warm temperatures. In June, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with an average of 19°C (66°F) and relatively high humidity at 74%. The month also sees about 68 mm (2.7 in) of precipitation over an average of 11 days. Conversely, September experiences cooler nights with a minimum temperature of 2°C (36°F) but maintains a maximum of 34°C (93°F) and an average of 16°C (60°F). Precipitation in September is slightly lower at 55 mm (2.2 in) over 10 days, with humidity rising to 81%. For more detailed insights, check out Bonn weather in September.

June and October present contrasting weather patterns. June experiences a wide temperature range, with minimums around 8°C (47°F) and maximums soaring to 35°C (95°F), leading to an average of 19°C (66°F). Despite the warmer temperatures, June has a relatively moderate amount of precipitation at 68 mm (2.7 in) over 11 days, paired with a humidity level of 74%. In contrast, October sees cooler temperatures, with minimums dropping to 0°C (33°F) and an average of 12°C (54°F). It also features a slightly higher precipitation rate of 71 mm (2.8 in) over 14 days, alongside increased humidity at 88%. For a detailed look at the weather conditions during this month, visit Bonn weather in October.

June and November showcase a stark contrast in weather conditions. In June, temperatures soar with a minimum of 8°C (47°F) and average highs reaching 35°C (95°F), providing a warm climate ideal for outdoor activities. However, November brings a chill, with temperatures dropping significantly, featuring a minimum of -4°C (26°F) and an average of just 7°C (45°F). While June experiences higher humidity at 74% and more precipitation over 11 days (68 mm), November has even greater humidity at 91% but slightly less precipitation overall (54 mm) and a total of 12 rainy days. For those interested in understanding what to expect during November, you can find more details here: Bonn weather in November.

June and December exhibit stark contrasts in weather conditions. June typically features a mild climate with temperatures ranging from a low of 8°C (47°F) to a high of 35°C (95°F), while December's temperatures plummet to a minimum of -5°C (23°F) and peak at just 15°C (59°F). Additionally, June experiences lower precipitation levels, averaging 68 mm (2.7 in) over 11 days, compared to December's wetter conditions, which bring about 100 mm (4.0 in) of rain over 19 days. The humidity also differs significantly, with June's average at 74% and December's rising to a damp 92%. For more detailed insights on December weather, check out Bonn weather in December.

Compare Bonn's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Bonn

As June unfolds in Bonn, the warmth of summer starts to peak, showcasing significantly higher temperatures compared to the cooler spring months. With an average high reaching a toasty 35°C (95°F), the days invite outdoor activities, while the humidity at 74% can add a touch of sultriness. Rainfall is not uncommon, with precipitation occurring on about 11 days, contributing to a total of 68 mm for the month. This blend of warmth and occasional rain contrasts sharply with the milder climates of earlier months, making June a vibrant and lively time to experience Bonn's charm. For a more detailed exploration of Bonn's weather throughout the year, visit Bonn Climate.