September Weather in Kempten (Allgaeu), Germany

Last updated: February 26, 2025

September in Kempten (Allgaeu), Germany, brings a mix of mild temperatures and increased humidity, setting the stage for a charming early autumn. Visitors can expect daytime highs reaching a pleasant 26°C (80°F), while the average temperature settles around a comfortable 13°C (56°F). Cooler nights can dip as low as 1°C (34°F), highlighting the transition of the season. Rainfall is a factor, with approximately 110 mm (4.3 in) spread over 14 days, contributing to the lush scenery of the Allgaeu region. With a humidity level of 83%, the air feels fresh yet invigorating, making September a perfect time to explore the beauty of Kempten and its surroundings.

September Temperature in Kempten (Allgaeu)

In September, Kempten (Allgäu) experiences a delightful transition as summer yields to autumn. The temperatures begin to cool, with minimums dipping to around 1°C (34°F), while the average climbs to a comfortable 13°C (56°F). Daytime highs can still reach a pleasant 26°C (80°F), offering a perfect balance for outdoor activities. This month marks a significant drop from the more intense warmth of summer, with August highs lingering around 31°C (88°F). As September unfolds, the crisp mornings and mild afternoons serve as a gentle reminder of the changing seasons, creating an inviting atmosphere ideal for exploring the region's natural beauty.

September Weather in Kempten (Allgaeu): Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kempten (Allgaeu), showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec313540475362636456493934
Data source: Temperature data for Kempten (Allgaeu) 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 Kempten (Allgaeu)

September in Kempten (Allgaeu) marks a transition in weather patterns, showcasing an average precipitation of 110 mm (4.3 in) over approximately 14 days. This consistent rainfall contributes to the region’s lush landscapes, but it's slightly reduced compared to the preceding summer months, which typically experience higher precipitation levels, such as the significant 157 mm (6.2 in) recorded in August. As autumn approaches, the frequency of rain decreases, hinted by the drop to 13 days in October, suggesting a shift towards drier weather as the year progresses. This trend highlights Kempten's distinct seasonal transitions, with September serving as a pivotal month where summer's final wetness is felt before the crisp autumn takes hold.

September Precipitation Trends in Kempten (Allgaeu)

The chart displays monthly precipitation patterns in Kempten (Allgaeu), 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.
JanFebMarAprMayJunJulAugSepOctNovDec125991107816314515115711011572142
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kempten (Allgaeu)

In Kempten (Allgäu), September marks a subtle transition in humidity levels as the summer warmth begins to wane. With an average humidity of 83%, this month holds onto the lingering moisture of late summer while paving the way for the crispness of autumn. The humidity slightly rises from the previous month, reflecting a consistent pattern where the late summer months of July (82%) and August (80%) usher in a small increase before descending into the wetter autumn months. As the year progresses, humidity peaks again in October at 90%, suggesting a natural ebb and flow influenced by seasonal shifts. This trend highlights September as a bridge between the warm and humid days of summer and the cooler, more humid climate of fall.

September Average Humidity in Kempten (Allgaeu)

This chart illustrates the average monthly humidity levels in Kempten (Allgaeu), 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.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kempten (Allgaeu)

As summer wanes in Kempten (Allgaeu), Germany, the UV Index begins to decrease from its peak, transitioning from the very high levels of August (UV Index 8) to a high level of 6 in September. This change signifies a slight relief for those enjoying outdoor activities, but it's essential to remain vigilant. With a burn time of 25 minutes, sun protection is still necessary during this month. The trend shows that while the UV Index remains elevated compared to the months earlier in the year, such as January with its low UV Index of 2, it gradually dips as we head into autumn. For insights and regular updates, check out the Kempten (Allgaeu) UV Index.

Maximum UV Index Levels in Kempten (Allgaeu) for September

The chart shows the monthly maximum UV Index (UVI) for Kempten (Allgaeu) 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.
JanFebMarAprMayJunJulAugSepOctNovDec235789986432
Data source: Kempten (Allgaeu) 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 Kempten (Allgaeu)

As summer transitions into autumn, September in Kempten (Allgaeu) offers a delightful balance of sunshine, boasting 300 hours of bright light—a significant dip from the sun-drenched heights of July and August. While this month sees a decrease compared to the peak summer months, it continues to shine brightly against the backdrop of the year, especially when contrasted with the leaner hours of January and February. September's sunshine captures a crisp freshness, inviting outdoor activities amid the changing leaves, while teasing the shorter days that await in October, where hours of sunlight fall to 271. The overall trend of increasing sunlight from the cold grasp of winter through the lush summer reflects the region's climatic charm, making Kempten a picturesque spot for both locals and visitors during this time of year.

Monthly Sunshine Duration in Kempten (Allgaeu): September Highlighted

The September sunshine duration represents the total number of hours Kempten (Allgaeu) 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.
JanFebMarAprMayJunJulAugSepOctNovDec157h222h288h341h344h374h396h359h300h271h217h175h
Data source: Kempten (Allgaeu) September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kempten (Allgaeu) During September

In Kempten (Allgäu), September marks a notable shift in sunny weather, boasting a 49% chance of sunshine, making it one of the sunniest months of the year. This increase is particularly striking when compared to the earlier months—April and May, which linger in the low 40s and 30s for sunny days respectively. As summer winds down, the likelihood of clear skies rises, providing a pleasant golden glow before the autumn chill sets in. Overall, September's weather not only invites outdoor activities but also signals a delightful transition, with sunshine becoming increasingly prominent as you bid farewell to summer.

Percentage of Sunny Days in September in Kempten (Allgaeu)

The chart illustrates the percentage of sunny days in Kempten (Allgaeu) 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 Kempten (Allgaeu) experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%41%39%45%32%36%34%33%49%38%29%27%
Data source: Kempten (Allgaeu) September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kempten (Allgaeu) in September

As summer gives way to autumn, September in Kempten (Allgaeu) offers a gentle transition with approximately 12 hours of daylight. This month marks a noticeable shift from the sun-drenched days of July and August, where daylight peaked at 15 hours. Although September's brightness begins to wane, it still enjoys significantly more daylight than the winter months ahead, which typically see around 8 to 10 hours. This downward trend continues into October, highlighting a gradual change as the region prepares for the shorter days of fall and winter. Overall, September serves as a beautiful bridge between the vibrant summer and the cozy introspection of autumn, inviting residents and visitors alike to savor the remaining warmth of the sun.

Average Daylight Hours in Kempten (Allgaeu) for September

The chart illustrates the variation in daylight duration in Kempten (Allgaeu) throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 54m10h 14m11h 55m13h 39m15h 8m15h 54m15h 30m14h 10m12h 31m10h 48m9h 16m8h 28m
Data source: Kempten (Allgaeu) daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kempten (Allgaeu)

As summer gracefully transitions into autumn, September in Kempten (Allgäu) is marked by a gentle lull in wind activity, with average wind speeds dropping to 1.9 m/s (4 mph). This reduction continues the trend of diminishing breezes observed from the vibrant month of May, where winds peaked at 3.2 m/s (7 mph). The calm atmosphere of September invites locals and visitors alike to savor the crisp air and vibrant foliage without the strong gusts that characterized earlier months. With each passing week, the subtle embrace of autumn begins to touch the landscape, making it a perfect time for leisurely strolls around Kempten’s picturesque surroundings.

Average September Wind Speed in Kempten (Allgaeu)

The chart displays monthly wind speed patterns in Kempten (Allgaeu), 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.12.72.72.43.22.12.12.31.9 m/s2.32.32.8
Data source: Kempten (Allgaeu) September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kempten (Allgaeu) Compares to Other Months

The weather in Kempten (Allgaeu) 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 Kempten (Allgaeu) and find detailed weather information for every month.

In September, temperatures range from a chilly minimum of 1°C (34°F) to a pleasant maximum of 26°C (80°F), with an average of 13°C (56°F). This month experiences about 110 mm (4.3 in) of precipitation over 14 days, accompanied by high humidity levels at 83%. In stark contrast, January brings much colder conditions, with temperatures plunging to a minimum of -23°C (-9°F) and averaging around 0°C (32°F), peaking at 15°C (60°F). Precipitation increases slightly to 125 mm (4.9 in) across 12 days, and the humidity also rises to 93%. For more insights into January weather in this region, you can visit Kempten (Allgaeu) weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures range from a mild 1°C (34°F) to a warm 26°C (80°F), with an average of 13°C (56°F). The month experiences considerable rainfall, totaling 110 mm (4.3 in) over about 14 days, and maintaining a humidity level of 83%. In contrast, February offers a much colder climate, with temperatures dipping as low as -16°C (4°F) and peaking at 17°C (63°F), averaging only 2°C (35°F). Despite slightly lower precipitation at 99 mm (3.9 in) across 12 days, humidity is relatively high at 89%. For more detailed information on February weather, visit Kempten (Allgaeu) weather in February.

September and March present contrasting weather patterns. In September, average temperatures range from a cool 1°C (34°F) at night to a pleasant 26°C (80°F) during the day, with an overall average of 13°C (56°F). In contrast, March experiences much colder conditions, with nighttime lows plunging to -16°C (4°F) and an average of just 4°C (40°F), while daytime highs reach 20°C (68°F). Both months receive similar amounts of precipitation, around 110 mm (4.3 in), but September has slightly fewer rainy days at 14 compared to March's 16 days. Additionally, humidity levels are quite high in both months, with September at 83% and March at 86%. For a detailed look at the weather in March, check out Kempten (Allgaeu) weather in March.

When comparing the weather in September and April, notable differences emerge. September generally features milder temperatures, with a minimum of 1°C (34°F) and an average of 13°C (56°F), peaking at 26°C (80°F). In contrast, April starts off cooler, with a minimum of -6°C (21°F) and an average of 8°C (47°F), though it can reach a maximum of 24°C (75°F). Precipitation levels are higher in September at 110 mm (4.3 in) over about 14 days, compared to 78 mm (3.1 in) across 11 days in April. Interestingly, both months share the same humidity level of 83%, making for a potentially damp feeling during both times of the year. For more detailed insights into April's weather, check out Kempten (Allgaeu) weather in April.

When comparing the weather in September and May, we notice some distinct differences. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 26°C (80°F), with an average of 13°C (56°F). This month also experiences approximately 110 mm (4.3 in) of precipitation over about 14 days, accompanied by a humidity level of 83%. Conversely, May offers a slightly wider temperature range, with lows of -3°C (26°F) and highs up to 29°C (84°F), along with an average of 12°C (53°F). However, it is typically wetter, averaging 163 mm (6.4 in) of rainfall over 19 days, and has a slightly lower humidity at 78%. For a closer look at the conditions you can expect, check out Kempten (Allgaeu) weather in May.

When comparing the weather in September to June, several notable differences emerge. June typically sees warmer temperatures, with an average of 17°C (62°F) and maximums reaching up to 32°C (90°F), while September offers a more moderate average of 13°C (56°F) and lower maximums of 26°C (80°F). Precipitation levels are slightly higher in June, with 145 mm (5.7 in) over 17 days compared to September's 110 mm (4.3 in) across 14 days. While both months experience relatively high humidity, September's average humidity of 83% is slightly elevated compared to June's 79%. For more specifics on June weather, you can visit Kempten (Allgaeu) weather in June.

When comparing the weather in July and September, notable differences emerge in temperature and precipitation patterns. July experiences warmer temperatures, with a minimum of 7°C (46°F) and a maximum reaching 32°C (91°F), giving it an average of 17°C (64°F). In contrast, September is cooler, featuring a minimum of 1°C (34°F) and a maximum of 26°C (80°F), with an average temperature of 13°C (56°F). Additionally, while July sees 151 mm (6.0 in) of precipitation over 16 days, September has a slightly lower total of 110 mm (4.3 in) across 14 days, making both months relatively wet but September slightly drier. The humidity levels are similar, with September at 83% and July at 82%. For more detailed insights, you can check the weather specifics for Kempten (Allgaeu) weather in July.

September brings a notable shift in weather compared to August, with average temperatures dropping from 18°C (64°F) in August to 13°C (56°F) in September. The maximum temperature in September reaches 26°C (80°F), significantly lower than August’s peak of 31°C (88°F). Additionally, September experiences more rainfall, with 110 mm (4.3 in) over 14 days, while August, though wetter overall with 157 mm (6.2 in) across 17 days, features higher humidity levels at 83% compared to September's 80%. For a detailed comparison of the weather in August, you can check Kempten (Allgaeu) weather in August.

September's weather is marked by milder temperatures with a minimum of 1°C and an average of 13°C, reaching a maximum of 26°C. The month sees considerable precipitation of 110 mm over 14 days, with humidity levels at 83%. In contrast, October experiences cooler conditions, with a minimum temperature dropping to -2°C and an average of 9°C, while the maximum temperature is somewhat lower at 24°C. Precipitation increases slightly to 115 mm over 13 days, and humidity rises to 90%. For more detailed insights, visit Kempten (Allgaeu) weather in October.

September typically showcases a wider temperature range with a minimum of 1°C and a maximum of 26°C, averaging around 13°C. In contrast, November experiences cooler temperatures, dropping as low as -5°C and reaching a maximum of 19°C, with an average of only 4°C. While September is characterized by relatively high humidity at 83% and more precipitation over 14 days totaling 110 mm, November, with 71 mm of rainfall over 11 days, has a slightly higher humidity level at 89%. For more details on November weather in Kempten, you can visit Kempten (Allgaeu) weather in November.

In September, Kempten experiences milder temperatures, ranging from a minimum of 1°C (34°F) to a maximum of 26°C (80°F), with an average of 13°C (56°F). The month is typically humid, with an average humidity of 83%, and sees about 110 mm (4.3 in) of precipitation over approximately 14 days. In contrast, December brings colder conditions, with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 13°C (56°F), averaging around 1°C (35°F). The winter month is wetter, recording about 142 mm (5.6 in) of precipitation over 18 days, accompanied by increased humidity at 90%. For more details, check out Kempten (Allgaeu) weather in December.

Compare Kempten (Allgaeu)'s Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kempten (Allgaeu)

As September unfolds in Kempten (Allgaeu), the weather experiences a noticeable shift, ushering in the gentle embrace of autumn. With daytime temperatures often peaking around 26°C (80°F), the warmth still lingers, although evenings can bring a chill with lows dipping to 1°C (34°F). Rainfall becomes more frequent, leading to an average of 14 wet days, contributing to a rich humidity level of 83% that enhances the vibrant colors of the changing leaves. This transitional month stands apart from the summer's heat and the crispness of October, making it a unique time to experience the beauty of the region. For a deeper understanding of the seasonal climate patterns, visit Kempten (Allgaeu) Climate.