September Weather in Kelheim, Germany

Last updated: February 26, 2025

In September, Kelheim, Germany experiences a transition from the remnants of summer to the early whispers of autumn. The maximum temperature reaches a pleasant 29°C (85°F), while the average dips to a cool 15°C (59°F), highlighting the seasonal shift. Nighttime temperatures can fall as low as 1°C (34°F), inviting cozy evenings. Despite the warm days, the region sees about 55 mm (2.2 in) of precipitation spread over 10 days, contributing to a lush landscape. With humidity levels averaging around 85%, the air is rich and invigorating, making September a fascinating month to explore the natural beauty of Kelheim.

September Temperature in Kelheim

In September, Kelheim, Germany experiences a delightful transition from the warmth of summer to the crispness of autumn. With temperatures ranging from a minimum of 1°C (34°F) to a comfortable average of 15°C (59°F), residents and visitors alike can enjoy mild days that still bask in the fading warmth of summer. The maximum temperature can reach up to 29°C (85°F), allowing for plenty of outdoor activities and scenic explorations. This month showcases a gentle decline in temperatures as the days gradually shorten, hinting at the brisk days of fall ahead. As the transition unfolds, September in Kelheim presents a perfect opportunity to savor the beauty of the changing seasons.

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

The chart illustrates September temperature patterns in Kelheim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec323641495666676758504035
Data source: Temperature data for Kelheim generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Kelheim

In September, Kelheim experiences a moderate precipitation total of 55 mm (2.2 in), slightly lower than the previous month's hefty 105 mm (4.1 in). With 10 days of rain, this month marks a return to a more subdued wetness after the summer peaks. Notably, September's precipitation is in line with trends observed earlier in the year, showcasing a seasonal transition as temperatures cool and days shorten. The rainfall gradually decreases from the intense summer months while still providing essential moisture to the changing landscape, setting the stage for the crisp fall ahead.

September Precipitation Trends in Kelheim

The chart displays monthly precipitation patterns in Kelheim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec60565939103868410555594590
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kelheim

In September, Kelheim, Germany, experiences a notable transition in humidity levels, averaging around 85%. This marks a slight increase from the more moderate summer months, where humidity fluctuated between 82% and 84%. As the city braces for the cooler autumn air, humidity levels begin to rise again, similar to earlier in the year, particularly in the winter months of January and February when humidity peaks at 91%. This ebb and flow reveals a pattern where summer months present relatively lower humidity, while autumn and winter bring a return to the more saturated air typical of Kelheim's climate.

September Average Humidity in Kelheim

This chart illustrates the average monthly humidity levels in Kelheim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%88%84%77%82%83%84%85%88%88%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kelheim

As September rolls into Kelheim, Germany, the UV Index stands at 6, indicating a high exposure category with a burn time of 25 minutes. This marks a gradual decline from the peak values seen during the summer months, where the UV Index reached an intense 9 in June and hovered at 8 through July and August. Such trends suggest that while early autumn brings some relief from the summer sun, it's essential to remain cautious as you enjoy outdoor activities. Whether you're strolling through the picturesque streets or relaxing in nature, remember to protect your skin against the sun's rays. For more information on daily UV levels, check out the Kelheim UV Index.

Maximum UV Index Levels in Kelheim for September

The chart shows the monthly maximum UV Index (UVI) for Kelheim 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689886421
Data source: Kelheim 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 Kelheim

In Kelheim, Germany, September marks a delightful transition as the sunshine begins to wane but still offers a generous 312 hours of bright days. Following the vibrant peak of summer in July with 423 hours, the month gracefully shifts into autumn, revealing a steady decline in daylight hours. While September showcases a significant drop from the summer highs, it remains lush compared to the winter months, with October bringing only 258 hours. This subtle yet significant change signals the end of a lively warm season, inviting residents and visitors alike to relish the lingering warmth and prepare for the cozy embrace of fall.

Monthly Sunshine Duration in Kelheim: September Highlighted

The September sunshine duration represents the total number of hours Kelheim 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.
JanFebMarAprMayJunJulAugSepOctNovDec121h210h283h344h375h403h423h386h312h258h181h135h
Data source: Kelheim September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kelheim During September

In Kelheim, Germany, the likelihood of sunny weather in September stands out with a promising 47% chance of sunshine, making it one of the sunniest months of the year. This notable increase follows the summer months, where sunshine probabilities hover around the 27% to 34% range, suggesting that early autumn might offer a delightful mix of lingering summer warmth and clearer skies. Traditionally, September serves as a transitional month, yet in Kelheim, it confidently strides into fall, presenting more opportunities for outdoor activities under the sun—a perfect time to relish the beauty of the changing seasons. Fans of sunny weather will find September an ideal moment to soak up the sun before the colder months set in, as the likelihood of clear skies drops significantly in October to 35% and further declines through the winter.

Percentage of Sunny Days in September in Kelheim

The chart illustrates the percentage of sunny days in Kelheim 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 Kelheim experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%37%42%38%27%34%33%29%47%35%24%15%
Data source: Kelheim September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kelheim in September

As summer fades, September in Kelheim, Germany, marks a gentle transition into autumn, with daylight lasting approximately 12 hours. This decline from the peak of 16 hours in June indicates the gradual shortening of days, as nature prepares for the colder months ahead. Following the vibrant, sun-drenched days of summer, September still offers a pleasant balance of light, accommodating both outdoor adventures and cozy evenings. Reflecting on the year, daylight steadily increases from 8 hours in January to a high at mid-year, showcasing a rhythmic ebb and flow that invites residents to savor the remaining warmth before autumn takes its full hold.

Average Daylight Hours in Kelheim for September

The chart illustrates the variation in daylight duration in Kelheim throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 43m10h 9m11h 55m13h 44m15h 18m16h 7m15h 41m14h 17m12h 32m10h 44m9h 7m8h 16m
Data source: Kelheim daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kelheim

As summer gives way to autumn in Kelheim, Germany, the September winds mirror the gentle transitions of the season. With an average wind speed of 2.1 m/s (5 mph), September's breezes are among the calmest of the year, joining June's rather tranquil gusts. This month continues the trend of lower wind speeds experienced from July to August, reinforcing a sense of stillness before the briskness of October arrives. Interestingly, the data suggests that September not only serves as a precursor to the changing weather patterns but also reflects a gradual decline in wind activity as the year progresses, contrasting with the more invigorating breezes felt in May. Overall, the soft September winds invite a serene conclusion to summer, laying the groundwork for the invigorating change that lies ahead.

Average September Wind Speed in Kelheim

The chart displays monthly wind speed patterns in Kelheim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.12.62.82.83.42.12.22.42.1 m/s2.42.42.9
Data source: Kelheim September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kelheim Compares to Other Months

The weather in Kelheim 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 Kelheim and find detailed weather information for every month.

In comparing the weather between September and January, one can observe notable differences in temperature and conditions. September features a more moderate climate with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 29°C (85°F), averaging around 15°C (59°F). The month experiences approximately 55 mm (2.2 inches) of precipitation over about 10 days, accompanied by a relatively high humidity level of 85%.

In stark contrast, January brings significantly colder temperatures, with a minimum of -18°C (-1°F), an average of 0°C (32°F), and a maximum of 13°C (55°F). While precipitation slightly increases to 60 mm (2.3 inches) also over 10 days, the humidity rises to 91%, creating a chillier, more pronounced winter atmosphere. For more details on January weather in this region, visit Kelheim weather in January.

September and February present strikingly different weather conditions. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F), while February experiences a much colder range, starting at -17°C (2°F) and peaking at 17°C (62°F), with an average of 2°C (36°F). Both months see similar precipitation levels—around 55-56 mm (2.2 in)—but February has one more rainy day, totaling 11 days of precipitation compared to September's 10. Additionally, humidity is slightly higher in February at 89%, compared to 85% in September. For more details on February's weather, you can check Kelheim weather in February.

September and March present markedly different weather conditions. In September, temperatures range from a chilly 1°C (34°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (59°F). This month experiences about 55 mm (2.2 in) of precipitation over 10 days, accompanied by a humidity level of 85%. In contrast, March is cooler, featuring temperatures that dip to a minimum of -14°C (8°F) and peak at a comfortable 21°C (69°F), averaging around 5°C (41°F). While it sees slightly higher precipitation at 59 mm (2.3 in) over 13 days, the humidity rises to 88%. For a more detailed look at March weather, visit Kelheim weather in March.

When comparing the weather in September and April, notable differences can be observed. September tends to be warmer, with average temperatures ranging from a minimum of 1°C (34°F) to a maximum of 29°C (85°F), while April experiences cooler conditions, with temperatures fluctuating between -6°C (21°F) and 26°C (79°F). Despite September having slightly higher precipitation levels at 55 mm (2.2 in) over about 10 days, April's precipitation is still significant at 39 mm (1.5 in) across 8 days. Humidity levels are quite similar in both months, with September at 85% and April at 84%. For those interested in more details, check out Kelheim weather in April.

When comparing the weather in September and May, both months experience a maximum temperature of 29°C (85°F), but September tends to be warmer overall with an average temperature of 15°C (59°F) compared to May's 13°C (56°F). September typically sees less rainfall, with 55 mm (2.2 in) over about 10 days, while May has higher precipitation at 103 mm (4.0 in) spread over approximately 15 days. Additionally, September's humidity is higher at 85%, contrasting with the 77% humidity experienced in May, contributing to a more comfortable atmosphere during late spring. For more detailed insights on this month's weather, you can check Kelheim weather in May.

When comparing the weather in September and June, notable differences emerge. September experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 15°C (59°F), while June typically sees warmer conditions, boasting a minimum of 4°C (40°F) and an average of 19°C (66°F). In terms of extremes, June can reach a high of 35°C (94°F), significantly warmer than September's maximum of 29°C (85°F). Precipitation is also a factor, with June receiving 86 mm (3.4 in) over 11 days, compared to September’s 55 mm (2.2 in) over 10 days. Humidity levels are similar, with September at 85% and June slightly lower at 82%. For more detailed insights on June weather, you can visit Kelheim weather in June.

When comparing the weather in September and July, we can see notable differences in temperature and precipitation patterns. September experiences a wider range of temperatures, with a minimum of 1°C (34°F) and a maximum of 29°C (85°F), averaging around 15°C (59°F). In contrast, July is warmer, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 35°C (95°F) and an average of 19°C (67°F).

Precipitation is more frequent in July, totaling 84 mm (3.3 in) over 12 days, compared to September's 55 mm (2.2 in) spread over 10 days. Additionally, humidity levels are quite similar, with September at 85% and July slightly lower at 83%. For more detailed insights into July's weather, you can check Kelheim weather in July.

September's weather brings cooler temperatures compared to August, with minimums dropping to 1°C (34°F) and an average of 15°C (59°F), while August enjoys warmer lows of 7°C (45°F) and an average of 19°C (67°F). The maximum temperature in September can reach 29°C (85°F), significantly lower than August's peak of 34°C (94°F). Precipitation also shifts, with September experiencing 55 mm (2.2 in) over 10 days, in contrast to August's 105 mm (4.1 in) across 14 days. Humidity levels remain relatively similar, with September at 85% and August at 84%. For more details on August weather specifically, check out Kelheim weather in August.

September and October weather show a notable shift as fall takes hold. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F). Humidity levels are relatively high at 85%, and the month sees about 55 mm (2.2 in) of precipitation over 10 days. By October, the temperature drops further, with minimums of -2°C (29°F), an average of 10°C (50°F), and maximums reaching 23°C (74°F). The average humidity increases slightly to 88%, and precipitation also rises to 59 mm (2.3 in) over 11 days. These changes highlight the transition towards colder and wetter conditions as autumn progresses. For more specific insights about October weather, you can refer to Kelheim weather in October.

September and November showcase a significant shift in weather conditions. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F), making it a much warmer month overall. It experiences more precipitation, with 55 mm (2.2 in) over about 10 days and humidity at 85%. In contrast, November brings cooler temperatures, with lows dropping to -4°C (24°F) and highs reaching 18°C (65°F), averaging at only 4°C (40°F). Precipitation decreases slightly to 45 mm (1.8 in) over 9 days, while humidity rises to 88%. For a more detailed outlook, you can check the Kelheim weather in November.

September and December present starkly contrasting weather conditions. In September, temperatures range from a pleasant 1°C (34°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (59°F). The month experiences less precipitation, totaling 55 mm (2.2 in) over approximately 10 days and maintaining a relatively high humidity level of 85%.

In December, on the other hand, conditions shift dramatically, with temperatures dropping significantly, ranging from a chilly -9°C (15°F) at night to a max of 13°C (55°F), averaging just 2°C (36°F). Precipitation increases to 90 mm (3.5 in) across 16 days, and humidity remains high at 91%. For more details on the December climate, visit Kelheim weather in December.

Compare Kelheim's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kelheim

As September settles over Kelheim, the weather marks a transition from summer's warmth to the cooler embrace of autumn. With a maximum temperature reaching 29°C, it teases a final taste of summer, while the average cools down to a comfortable 15°C. Rainfall is a frequent guest, with about 10 days seeing a total of 55 mm, nurturing the verdant landscapes that define the region. The high humidity of 85% adds a distinct touch, making the air feel rich and lush. This shift creates an ambiance that is both refreshing and vibrant, making September a unique chapter in Kelheim's weather narrative. For a deeper look into the area's climate patterns throughout the year, check out Kelheim Climate.