September Weather in Brilon, Germany

Last updated: February 26, 2025

In Brilon, Germany, September brings a mix of pleasant warmth and refreshing rainfall. With maximum temperatures reaching up to 30°C (86°F), the month offers a comfortable average of 14°C (57°F), though it can dip to a cool 1°C (34°F) during the nights. The region experiences approximately 67 mm (2.6 in) of precipitation over 12 days, creating a lush landscape. With an humidity level of 82%, visitors can expect a vibrant yet crisp atmosphere that beautifully captures the essence of early autumn.

September Temperature in Brilon

In Brilon, Germany, September marks the transition from the warm summer months to the crisp autumn season. With temperatures ranging from a minimum of 1°C (34°F) to a maximum of 30°C (86°F), it offers a pleasant average of 14°C (57°F), allowing for comfortable outdoor activities against a backdrop of changing foliage. This month signifies a notable drop from the intense heat of July and August, reflecting a steady cooling trend as fall approaches. As daylight begins to wane and evenings turn brisk, September captures the beauty of early autumn, making it an inviting time for hikers and nature enthusiasts to explore the scenic landscapes.

September Weather in Brilon: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Brilon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec353741475463646457514238
Data source: Temperature data for Brilon 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.

September Precipitation in Brilon

In September, Brilon experiences a noticeable decline in precipitation, with 67 mm (2.6 in) of rain falling over approximately 12 days. This marks a contrast to the wetter months of July and August, which saw 104 mm (4.1 in) and 97 mm (3.8 in) respectively, indicating a gradual shift towards the drier spell of autumn. As summer transitions to fall, September's rainfall is significantly less than the peak months, yet it still maintains a steady rhythm of precipitation days, aligning closely with the averages from earlier in the year. This trend underscores Brilon's moderately wet climate, where even a month like September can still contribute to the year's totals, albeit at a diminishing rate as the year progresses.

September Precipitation Trends in Brilon

The chart displays monthly precipitation patterns in Brilon, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec86848951857910497678956101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Brilon

In September, Brilon, Germany, experiences a noticeable shift in humidity, registering at 82%. This marks a rebound from the drier summer months of June, July, and August, which hovered around 74% to 75%. As autumn approaches, humidity levels start to trend upward, reflecting a transition back towards the wetter conditions typical of the later months in the year. This pattern suggests that while summer brings a brief respite from high humidity, the arrival of September signals a return to the more familiar, moisture-laden air reminiscent of the winter months, which average around 90% humidity from October through December.

September Average Humidity in Brilon

This chart illustrates the average monthly humidity levels in Brilon, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%87%83%76%74%74%75%82%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Brilon

As September settles in Brilon, Germany, the UV Index marks a modest 5, reflecting a moderate exposure category. This is a slight decrease from the peak summer months, where the index reached 8 in both June and July, emphasizing the significant sun intensity that characterizes warmer days. With a burn time of 30 minutes, it remains essential to protect your skin during midday hours, even as temperatures begin to cool. This transitional month serves as a reminder that while the summer sun fades, UV rays can still pose a risk. For more detailed information, check out Brilon UV Index.

Maximum UV Index Levels in Brilon for September

The chart shows the monthly maximum UV Index (UVI) for Brilon in September, 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: Brilon September 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.

September Sunshine in Brilon

September in Brilon, Germany, is a time of transition, striking a balance between the lingering warmth of summer and the encroaching chill of autumn. With 310 hours of sunshine, it sits comfortably among the sunniest months, though it shows a noticeable decline from the peak summer months of July (400 hours) and August (377 hours). This gradual shift signals the onset of fall, as the daylight hours begin to wane. However, September still basks in a generous amount of sunlight, outshining the following months, including October's 224 hours. As summer gives way to autumn, Brilon invites locals and visitors alike to enjoy the tail end of sunny days amidst a tapestry of vibrant autumn leaves.

Monthly Sunshine Duration in Brilon: September Highlighted

The September sunshine duration represents the total number of hours Brilon experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec91h190h249h344h383h386h400h377h310h224h161h104h
Data source: Brilon September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Brilon During September

As summer wanes and September arrives in Brilon, Germany, the likelihood of sunny weather begins to pick up, offering a refreshing transition into autumn. With a 35% chance of sunshine, September stands out as one of the more favorable months for basking in the sun compared to the preceding summer months, which hover around 26-29%. This slight uptick suggests a trend of increasing daylight and enjoyable weather, making it an appealing time for outdoor activities. As the days slowly shorten and the crispness of fall creeps in, residents and visitors alike can look forward to September's brightness amid the approaching cooler months.

Percentage of Sunny Days in September in Brilon

The chart illustrates the percentage of sunny days in Brilon throughout the year, with September 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 Brilon experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec9%27%37%32%28%26%28%29%35%24%18%15%
Data source: Brilon September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Brilon in September

As September unfolds in Brilon, Germany, the transition from the long, sun-soaked days of summer to the cooler embrace of autumn begins to take shape. With approximately 12 hours of daylight, this month strikes a balance, allowing for ample time to enjoy the changing foliage and crisp air. Following the peak summer months of 16 hours of daylight in June and July, September marks a noticeable decrease, yet it still outshines the winter months ahead. The gradual tapering of daylight serves as a gentle reminder of nature's rhythm, as the days grow shorter, leading into the cozy atmosphere of autumnal months. As the daylight begins to retreat, Brilon’s landscape transforms, inviting residents and visitors alike to relish the beauty of early autumn.

Average Daylight Hours in Brilon for September

The chart illustrates the variation in daylight duration in Brilon throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 25m9h 59m11h 54m13h 53m15h 37m16h 31m16h 2m14h 29m12h 35m10h 37m8h 51m7h 55m
Data source: Brilon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Brilon

In Brilon, Germany, the September winds whisper a gentle transition into autumn, with an average wind speed of 2.7 m/s (6 mph). This notably marks a dip from the mild breezes of summer, typically reaching 3.2 m/s (7 mph) in August. As the seasons shift, September continues the trend of decreasing wind speeds observed since June, where the winds were more subdued at 2.6 m/s (6 mph). However, as the year progresses, a resurgence can be anticipated in October, when the wind picks up to 4.3 m/s (10 mph), ushering in a brisker feel to the air. This cyclical pattern highlights the unique characteristics of Brilon's climate, where each month brings its own nuanced rhythm to the breezes that dance through the region.

Average September Wind Speed in Brilon

The chart displays monthly wind speed patterns in Brilon, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.93.63.33.92.62.83.22.7 m/s4.33.44.0
Data source: Brilon September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Brilon Compares to Other Months

The weather in Brilon changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Brilon and find detailed weather information for every month.

September and January present strikingly different weather patterns. In September, temperatures range from a cool 1°C (34°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (57°F). The month experiences about 67 mm (2.6 in) of precipitation spread over 12 days, accompanied by a humidity level of 82%. In contrast, January is much colder, with temperatures dipping as low as -12°C (10°F) and peaking at a mild 13°C (56°F), yielding an average of 2°C (35°F). This winter month sees slightly higher precipitation at 86 mm (3.4 in) over 14 days, along with increased humidity at 92%. For more detailed information, you can check Brilon weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a cool 1°C (34°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (57°F). The month sees about 67 mm of precipitation over 12 days, accompanied by high humidity at 82%. In contrast, February is significantly colder, with temperatures dropping as low as -16°C (3°F) and peaking at 19°C (66°F), averaging around 3°C (37°F). This month experiences slightly higher precipitation at 84 mm over 13 days and even more humidity, reaching 90%. The stark differences in temperature and atmospheric conditions highlight the changing seasons. For more detailed information, visit Brilon weather in February.

In comparing the weather patterns of September and March, we observe notable differences in temperature and precipitation. September boasts a milder average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F), whereas March's average temperature drops to 5°C (42°F), with a maximum of only 21°C (70°F). Precipitation in March is slightly higher at 89 mm (3.5 in) over 16 days, compared to September's 67 mm (2.6 in) over 12 days. Additionally, both months exhibit high humidity levels, with March at 87% and September at 82%. For a closer look at the specific conditions, you can check Brilon weather in March.

When comparing the weather in September and April, notable differences emerge. September typically enjoys warmer temperatures, ranging from a minimum of 1°C (34°F) to a pleasant average of 14°C (57°F) and a maximum of 30°C (86°F). In contrast, April starts cooler, with minimum temperatures dipping to -5°C (23°F) and an average around 9°C (48°F), yet it can still reach up to 26°C (78°F) at times. Precipitation levels are also relatively close, with September receiving 67 mm (2.6 in) over 12 days and April recording 51 mm (2.0 in) over 11 days. Both months exhibit high humidity, with September at 82% and April slightly higher at 83%. To explore more about April weather specifics, you can check Brilon weather in April.

In September, the temperatures range from a cool minimum of 1°C (34°F) to a warm maximum of 30°C (86°F), with an average of 14°C (57°F). The month sees an average precipitation of 67 mm (2.6 in) over about 12 days, and humidity levels are relatively high at 82%. In contrast, May experiences slightly lower temperatures, with a minimum of -1°C (30°F) and an average of 12°C (54°F), while still reaching a peak of 30°C (87°F) on warmer days. May has a higher precipitation level of 85 mm (3.4 in) spread across 13 days, with humidity at a more moderate 76%. For more detailed insights on the weather specifics in May, check out Brilon weather in May.

In comparing the weather between June and September, we see some notable differences. September experiences a wider temperature range, with minimums dropping to 1°C (34°F) and maximums reaching up to 30°C (86°F), while June has slightly higher minimums at 4°C (40°F) and similar maximums peaking at 32°C (89°F). The average temperature in September is about 14°C (57°F), compared to June's average of 17°C (64°F). Rainfall is also a factor; September has 67 mm (2.6 in) of precipitation over 12 days, whereas June has slightly higher precipitation at 79 mm (3.1 in) across 13 days. Additionally, September exhibits higher humidity levels at 82%, contrasted with June's 74%. For more detailed insights, you can check out Brilon weather in June.

September offers a more varied temperature range compared to July, with minimums dropping to 1°C (34°F) and maximums reaching 30°C (86°F). In contrast, July generally warms up more, with minimums at 6°C (44°F) and maximums soaring up to 36°C (97°F). Precipitation is also notable in both months, with September receiving 67 mm (2.6 in) over 12 days and July experiencing higher amounts of 104 mm (4.1 in) over 14 days. Humidity levels are higher in September at 82%, whereas July sees a somewhat lower humidity of 74%. For more detailed information, you can check Brilon weather in July.

In comparing the weather of September to that of August, there are notable differences in temperature and precipitation. September experiences a broader range of temperatures, with minimums dropping to 1°C (34°F) and maximums reaching up to 30°C (86°F), while August maintains milder conditions with a minimum temperature of 7°C (44°F) and a maximum of 34°C (94°F). Precipitation in September totals 67 mm (2.6 in) over 12 days, which is less than August's 97 mm (3.8 in) over 15 days, indicating a slightly drier month. Additionally, September’s humidity is higher at 82%, compared to August's 75%, giving the former a more humid feel as summer transitions into autumn. For further details, you can check Brilon weather in August.

September typically boasts warmer temperatures, with averages around 14°C (57°F) and highs reaching up to 30°C (86°F), while nights can dip to a minimum of 1°C (34°F). In contrast, October sees cooler averages of 11°C (51°F) and maximums of 25°C (77°F), with temperatures sometimes dropping to 0°C (32°F). The month of October also experiences slightly more rain, totaling 89 mm (3.5 in) over 16 days, compared to September's 67 mm (2.6 in) over 12 days. Humidity rises in October to 88%, a small increase from September's 82%. For more detailed insights, check out Brilon weather in October.

In September, the weather is generally warmer, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 30°C (86°F) and an average of 14°C (57°F). This month experiences a moderate amount of precipitation at 67 mm (2.6 in) over 12 days, accompanied by a humidity level of 82%. In contrast, November brings cooler temperatures, with a minimum of -3°C (27°F), an average of 6°C (43°F), and a maximum of 19°C (66°F). The precipitation in November is slightly lower at 56 mm (2.2 in) over the same number of days, but humidity increases to 90%. For more detailed information, check out Brilon weather in November.

September and December present strikingly different weather patterns. In September, temperatures range from a mild 1°C (34°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (57°F). The month sees relatively low precipitation, totaling 67 mm (2.6 in) over 12 days and maintaining a comfortable humidity level of 82%. In contrast, December experiences a significant drop in temperatures, with nighttime lows plunging to -6°C (21°F) and daytime highs capping at 13°C (56°F), yielding an average of just 3°C (39°F). This month is wetter, receiving 101 mm (4.0 in) of rainfall over 19 days and higher humidity at 92%. For those interested in a deeper dive into December's weather specifics, you can explore Brilon weather in December.

Compare Brilon's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Brilon

As we transition into September, Brilon experiences a delightful shift in weather compared to the warmer summer months. With temperatures averaging a comfortable 14°C, the cool breeze becomes a welcome change, especially after the peak heat of summer. While maximum temperatures still reach a pleasant 30°C, the arrival of increased humidity at 82% sets the stage for a more refreshing atmosphere. The month also sees a noteworthy uptick in precipitation, with about 67 mm over approximately 12 days, bringing greenery back to the landscape. This blend of mild temperatures and occasional rain creates an inviting backdrop to enjoy the transforming beauty of early autumn. For a deeper understanding of the area's seasonal trends, explore Brilon Climate.