September Weather in Koenigsee, Germany

Last updated: February 26, 2025

September in Koenigsee, Germany, offers a delightful blend of crisp autumn air and mild temperatures. Daily highs can reach a pleasant 29°C (85°F), making it a perfect time for outdoor activities, while the average temperature hovers around 14°C (57°F). However, as the month progresses, nighttime temperatures can dip to a chilly 0°C (33°F). Visitors should prepare for some rainfall, as 56 mm (2.2 in) of precipitation is expected across 9 days, contributing to the lush scenery of this picturesque region. With an average humidity of 83%, the enchanting beauty of Koenigsee in September is complemented by a refreshing and invigorating atmosphere.

September Temperature in Koenigsee

In September, Koenigsee, Germany experiences a delightful transition as summer begins to wane. With average temperatures hovering around 14°C (57°F), the days remain pleasantly warm, reaching a maximum of 29°C (85°F), ideal for outdoor explorations. The nights, however, bring a cooler breeze, dipping to a minimum of 0°C (33°F). This month reflects a gradual shift away from the sweltering highs of August, blending the lingering warmth of summer with the crispness of autumn. As the landscape transforms, September invites visitors to enjoy the lake's stunning beauty while basking in comfortable weather conditions.

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

The chart illustrates September temperature patterns in Koenigsee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec323438465363646456493935
Data source: Temperature data for Koenigsee 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 Koenigsee

In September, Koenigsee experiences a noticeable shift in its weather patterns, with precipitation amounting to 56 mm (2.2 in) spread over just 9 days. This is a decline from the summer months, particularly August, which brought a hefty 99 mm (3.9 in) across 15 days of rain. As autumn approaches, the rainfall decreases, suggesting a transition towards drier conditions. Interestingly, while September's total is lower, it offers a refreshing respite compared to the earlier months, still contributing to the picturesque scenery of the region. This trend of decreasing precipitation sets the stage for the crisp and clear days that characterize the fall season in Koenigsee.

September Precipitation Trends in Koenigsee

The chart displays monthly precipitation patterns in Koenigsee, 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.
JanFebMarAprMayJunJulAugSepOctNovDec635468469891839956634671
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Koenigsee

In September, humidity in Koenigsee, Germany begins to rise slightly after the more stable summer months, reaching 83%. This marks a notable shift after the consistently moderate levels of 79% seen during the peak summer in July and August. As autumn approaches, humidity levels gradually creep upwards toward the higher rates typical for the fall and winter months, setting the stage for the increasing moisture that characterizes the upcoming seasons. The trend shows a return to the higher humidity levels of earlier months, with October expected to push back up to 87%, illustrating the region's transition into its wetter months as the year draws to a close.

September Average Humidity in Koenigsee

This chart illustrates the average monthly humidity levels in Koenigsee, 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%90%88%83%75%79%79%79%83%87%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Koenigsee

As September arrives in Koenigsee, Germany, the UV Index reflects a significant transition from the intense summer months. With a UV Index rating of 5, categorized as moderate, locals and visitors can expect a burn time of about 30 minutes with unprotected skin. This shift is noticeable compared to the very high levels experienced in July and June, where the UV Index peaked at 8. As fall approaches, sun exposure becomes more manageable, yet it's still essential to be mindful of the sun’s impact. For comprehensive details on UV levels throughout the year, you can explore the Koenigsee UV Index.

Maximum UV Index Levels in Koenigsee for September

The chart shows the monthly maximum UV Index (UVI) for Koenigsee 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.
JanFebMarAprMayJunJulAugSepOctNovDec224578875421
Data source: Koenigsee 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 Koenigsee

As summer fades into autumn, September in Koenigsee, Germany, continues to bask in generous sunlight, recording 317 hours of sunshine. This month marks a decline from the peak of summer, but still offers a warm embrace before the chill of October sets in. The sunshine hours remain notably higher than the early months of the year, where January starts with a mere 99 hours and only gradually climbs through winter. The upward trend in hours from winter to summer peaks in July with an impressive 412 hours, creating a vivid contrast to September's comfortable warmth. While the sunshine begins to wane as the season shifts, September maintains a robust flicker of summer's glow, inviting visitors to revel in the breathtaking landscapes of Koenigsee before the days grow shorter.

Monthly Sunshine Duration in Koenigsee: September Highlighted

The September sunshine duration represents the total number of hours Koenigsee 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.
JanFebMarAprMayJunJulAugSepOctNovDec99h199h262h343h384h396h412h379h317h255h173h128h
Data source: Koenigsee September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Koenigsee During September

In Koenigsee, Germany, the likelihood of sunny weather takes a positive turn in September, boasting a 36% chance of sunshine. This marks a notable increase compared to the summer months, where July and August see lower sunny probabilities at 30% and 27%, respectively. As autumn approaches, September emerges as a preferred month for sun-seekers, reflecting a trend that highlights a subtle but significant rebound in sunny days from the declining chances observed in late summer. With the crispness of early fall in the air, visitors can anticipate a delightful mix of pleasant weather, making it a charming time to explore the stunning landscapes of Koenigsee.

Percentage of Sunny Days in September in Koenigsee

The chart illustrates the percentage of sunny days in Koenigsee 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 Koenigsee experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%29%37%34%31%26%30%27%36%29%16%11%
Data source: Koenigsee September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Koenigsee in September

As summer fades into fall, September in Koenigsee, Germany, offers a gentle transition in daylight duration. With about 12 hours of daylight, the month marks a noticeable decline from the 16 hours seen in June, yet it's still a significant stretch compared to the shorter days of January and the approaching October. This gradual reduction provides a perfect opportunity for residents and visitors alike to enjoy the tail end of outdoor activities, as the lush landscapes become bathed in warm golden hues. As daylight dwindles in the coming months, September stands as a beautiful reminder of the summer's lingering presence before nature transitions into the crisp embrace of autumn.

Average Daylight Hours in Koenigsee for September

The chart illustrates the variation in daylight duration in Koenigsee throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 55m13h 51m15h 32m16h 25m15h 57m14h 26m12h 34m10h 38m8h 55m8h
Data source: Koenigsee daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Koenigsee

As autumn begins to whisper through Koenigsee, Germany in September, the average wind speed settles at a gentle 2.4 m/s (5 mph). This shift marks a notable decrease from the spring breezes, where wind speeds peaked in May at 3.8 m/s (8 mph). The transition to fall typically brings calmer conditions, evident as the winds soften from the mid-year bluster, with July and August averaging around 2.6 m/s and 2.9 m/s, respectively. Interestingly, despite the serene September winds, the momentum subtly recovers in October, edging back up to 3.3 m/s (7 mph). Such patterns highlight the region's seasonal ebb and flow, inviting visitors to enjoy the tranquil beauty of the landscape as nature prepares for winter.

Average September Wind Speed in Koenigsee

The chart displays monthly wind speed patterns in Koenigsee, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.42.93.13.03.82.12.62.92.4 m/s3.32.93.2
Data source: Koenigsee September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Koenigsee Compares to Other Months

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

September and January present strikingly different weather patterns. In September, temperatures range from a pleasant 0°C (33°F) at night to a warm 29°C (85°F) during the day, with an average of 14°C (57°F). Although there is some rainfall, with 56 mm (2.2 in) spread across 9 days, the humidity sits at a comfortable 83%, making it a relatively mild month. In contrast, January is significantly colder, with temperatures dropping as low as -20°C (-3°F) and averaging around 0°C (32°F). The maximum temperature reaches only 12°C (53°F), and there's an increase in precipitation to 63 mm (2.5 in) over 13 days, accompanied by higher humidity levels at 91%. For a closer look at weather conditions during this chillier month, you can visit Koenigsee weather in January.

September and February present strikingly different weather characteristics. September typically features milder temperatures, ranging from a minimum of 0°C (33°F) to a pleasant maximum of 29°C (85°F), with an average of 14°C (57°F). In contrast, February is considerably colder, with temperatures plunging to a minimum of -17°C (1°F) and an average of just 1°C (34°F), peaking at 15°C (59°F). While both months receive similar levels of precipitation—56 mm (2.2 in) in September and 54 mm (2.1 in) in February—the patterns differ, as September experiences rain over about 9 days compared to February's 12 days of precipitation. The humidity also remains high in February at 90%, slightly above September's 83%. For more details on February weather, check Koenigsee weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a cool 0°C (33°F) to a warm 29°C (85°F), with an average of 14°C (57°F), accompanied by moderate humidity at 83% and 56 mm (2.2 in) of precipitation over about 9 days. In contrast, March experiences colder temperatures, ranging from a low of -15°C (5°F) to a high of 20°C (69°F), averaging only 3°C (38°F). The month sees slightly higher precipitation at 68 mm (2.7 in) but over more days, approximately 14, coupled with a higher humidity at 88%. For more on the weather specifics, check out Koenigsee weather in March.

When comparing the weather in September and April, distinct variations emerge. September typically enjoys milder temperatures, with an average of 14°C (57°F) and a maximum of 29°C (85°F), while April has cooler conditions, averaging 8°C (46°F) and reaching a maximum of 26°C (79°F). Additionally, September tends to be drier, recording 56 mm (2.2 in) of precipitation over approximately 9 days, compared to April’s 46 mm (1.8 in) over 10 days. Both months share a humidity level of 83%, creating a consistently damp atmosphere. For more specific insights into April weather, you can refer to this link: Koenigsee weather in April.

In comparing the weather between September and May, we see notable differences in temperature and precipitation patterns. September boasts a wider temperature range, with minimums around 0°C (33°F) and maximums reaching up to 29°C (85°F), resulting in an average of 14°C (57°F). In contrast, May exhibits slightly cooler temperatures, with minimums dipping to -2°C (29°F) and maximums around 28°C (82°F), averaging 12°C (53°F). Additionally, May experiences significantly higher precipitation, totaling 98 mm (3.8 in) over 15 days, compared to September's 56 mm (2.2 in) over just 9 days. The humidity levels also differ, with September being more humid at 83%, while May’s humidity is lower at 75%. For those interested in detailed May weather specifics, please refer to Koenigsee weather in May.

The weather in September and June presents notable differences, particularly in terms of temperature and precipitation. September typically experiences a wide temperature range, with a minimum of 0°C (33°F) and a maximum of 29°C (85°F), averaging around 14°C (57°F). In contrast, June is generally warmer, with temperatures not dipping below 3°C (39°F) and peaking at 32°C (90°F), averaging 17°C (63°F). Additionally, September sees approximately 56 mm (2.2 in) of rain over about 9 days, while June has higher precipitation levels of 91 mm (3.6 in) across 13 days. Humidity levels are slightly higher in September at 83%, compared to June’s 79%. For more specific insights into June weather, you can refer to Koenigsee weather in June.

When comparing the weather of September and July, September experiences a wider temperature range, with minimums dropping to 0°C (33°F) and maximums reaching 29°C (85°F), contrasted with July's warmer temperatures that range from a minimum of 7°C (44°F) to a maximum of 34°C (94°F). Precipitation is also a notable difference; September sees about 56 mm (2.2 in) over 9 days, while July is wetter, recording 83 mm (3.3 in) across 11 days. Despite this, September's humidity at 83% is slightly higher than July's 79%, making the air feel somewhat more oppressive as summer wanes. For those looking to explore weather details in July, here is a resource: Koenigsee weather in July.

In comparing the weather between September and August, we observe notable differences in temperature and precipitation. September brings cooler temperatures, with a minimum of 0°C (33°F) and an average of 14°C (57°F), compared to August, which has a minimum of 6°C (43°F) and an average of 18°C (65°F). While August experiences higher maximum temperatures, reaching 34°C (93°F), September peaks at a milder 29°C (85°F).

Additionally, September sees less precipitation overall, totaling 56 mm (2.2 in) over 9 days, compared to August’s 99 mm (3.9 in) over 15 days, making September a slightly drier month. Humidity levels are also slightly higher in September at 83%, compared to 79% in August. For a more detailed look at August weather patterns, check out Koenigsee weather in August.

In September, temperatures in the region typically range from a minimum of 0°C (33°F) to a maximum of 29°C (85°F), with an average of 14°C (57°F). This month experiences around 56 mm (2.2 in) of precipitation over 9 days, along with a relatively high humidity level of 83%.

By contrast, October sees a slight drop in temperatures, with minimums dipping to -1°C (30°F) and maximums reaching 24°C (75°F), resulting in an average of 10°C (49°F). Precipitation increases to 63 mm (2.5 in) over about 11 days, and humidity rises slightly to 87%. For more detailed insights into October weather in this area, you can refer to Koenigsee weather in October.

In September, the weather is generally milder, with temperatures ranging from a chilly 0°C (33°F) at night to a warm 29°C (85°F) during the day, averaging around 14°C (57°F). The month experiences around 56 mm (2.2 in) of precipitation over approximately 9 rainy days, coupled with humidity levels at 83%. In contrast, November brings cooler temperatures, with a minimum of -5°C (23°F) and a maximum of 18°C (64°F), averaging only 4°C (40°F). The total precipitation decreases slightly to 46 mm (1.8 in) across about 11 days, while humidity rises to 90%. For a more detailed overview of the weather during this month, you can check Koenigsee weather in November.

In September, the weather is significantly warmer, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 29°C (85°F), averaging around 14°C (57°F). This month experiences about 56 mm (2.2 in) of precipitation over approximately 9 days, while humidity levels are relatively high at 83%. In stark contrast, December brings much colder conditions, with temperatures dipping to a minimum of -8°C (17°F) and averaging just 2°C (35°F), reaching a maximum of 12°C (55°F). The month sees increased precipitation at 71 mm (2.8 in) spread over 15 days, along with even higher humidity at 92%. For more detailed information about December's conditions, check out Koenigsee weather in December.

Compare Koenigsee's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Koenigsee

September at Koenigsee presents a unique blend of crisp autumn air and lingering summer warmth, creating a delightful transition between seasons. The average temperatures are noticeably cooler than the peak summer months, making outdoor activities more refreshing, yet the possibility of warmer days still exists. However, with an increase in precipitation—over half of the month sees some rain—the lush landscapes become even more vibrant. As humidity remains high, the atmosphere can feel somewhat heavier, but this only adds to the region's enchanting charm. For those curious about the overall climate trends throughout the year, this dynamic September weather is a compelling glimpse into what you can expect. Discover more about the area's climate by visiting Koenigsee Climate.