September Weather in Sierksdorf, Germany

Last updated: February 26, 2025

In Sierksdorf, Germany, September brings a delightful mix of late summer warmth and the first whispers of autumn. With maximum temperatures peaking at 29°C (85°F) and an average of 15°C (59°F), the month offers a pleasant climate for outdoor activities. However, cooler evenings can drop to a refreshing 5°C (40°F). Visitors should be prepared for occasional rain, as 49 mm (1.9 in) of precipitation graces the region over about 8 days, contributing to a notable 82% humidity. This blend of warmth, humidity, and light rainfall creates a unique atmosphere that showcases the beauty of Sierksdorf in transition.

September Temperature in Sierksdorf

In September, Sierksdorf experiences a delightful transition into autumn, with temperatures ranging from a comfortable 5°C (40°F) at night to a pleasant 29°C (85°F) during the day. This month showcases an average temperature of 15°C (59°F), making it a perfect time for outdoor activities as the heat of summer begins to wane. Compared to the preceding months, the shift is clear: while July and August bask in maximum temperatures reaching 34°C (93°F), September offers a more moderate warmth, inviting locals and visitors alike to enjoy the beauty of the changing season. As the landscape starts to don its autumn colors, Sierksdorf's September weather perfectly embodies a cozy yet vibrant atmosphere.

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

The chart illustrates September temperature patterns in Sierksdorf, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec373841465463646559524439
Data source: Temperature data for Sierksdorf 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 Sierksdorf

In September, Sierksdorf experiences a noticeable shift in weather patterns, with precipitation measuring 49 mm (1.9 in) across eight rainy days. This marks a decrease from the wetter months of July and August, which received 79 mm and 68 mm respectively, reflecting the gradual transition from summer to autumn. The consistent amounts of rain in the summer months, primarily around 59 mm, emphasize a seasonal trend of varied precipitation, while September’s lighter showers signal an impending change in climate as the year progresses toward winter. This pattern not only illustrates Sierksdorf's unique weather rhythm but also highlights a period where the days begin to grow shorter and cooler.

September Precipitation Trends in Sierksdorf

The chart displays monthly precipitation patterns in Sierksdorf, 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.
JanFebMarAprMayJunJulAugSepOctNovDec554959416059796849714461
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sierksdorf

As summer transitions into autumn, September in Sierksdorf, Germany experiences a notable shift in humidity levels, averaging 82%. This is a rise from the low of 75% recorded in August, reflecting the onset of a more damp and cool climate. The gradual increase in humidity throughout the year is evident, starting from January's high of 91% and peaking again in the colder months, with a significant jump to 86% in October and 89% in November. This fluctuation underscores Sierksdorf's characteristic maritime climate, where the invitation of autumn brings with it a refreshing yet humid atmosphere, making it a picturesque time for those who appreciate a blend of crisp air and lingering warmth.

September Average Humidity in Sierksdorf

This chart illustrates the average monthly humidity levels in Sierksdorf, 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%87%83%78%77%77%75%82%86%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sierksdorf

As September rolls into Sierksdorf, Germany, the UV Index settles at 5, marking a return to moderate exposure levels. This signifies a noticeable dip from the very high and high indices of the summer months, but don’t let your guard down just yet! With a burn time of just 30 minutes, it's still important to take precautions during outdoor activities. As the month transitions into autumn, residents and visitors alike can enjoy the milder sun while remaining mindful of their skin protection. For an in-depth view of UV levels throughout the year, check out Sierksdorf UV Index.

Maximum UV Index Levels in Sierksdorf for September

The chart shows the monthly maximum UV Index (UVI) for Sierksdorf 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568775321
Data source: Sierksdorf 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 Sierksdorf

As summer gracefully transitions into autumn, September in Sierksdorf, Germany continues to bask in pleasant sunlight, boasting 319 hours of sunshine. This month reflects a slight decline from the peak summer months of June and July, where sunshine hours reached a vibrant 425 and 431, respectively. However, September's abundant daylight—more than the earlier spring months—suggests a lingering warmth, inviting outdoor activities before the chill of October approaches, which offers a notable drop to 250 hours. As the year unfolds, sunlight hours exhibit a clear seasonal rhythm, with the warmth of summer giving way to the crispness of fall, each month presenting its own narrative in the dance of daylight.

Monthly Sunshine Duration in Sierksdorf: September Highlighted

The September sunshine duration represents the total number of hours Sierksdorf 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.
JanFebMarAprMayJunJulAugSepOctNovDec103h185h268h363h417h425h431h397h319h250h155h116h
Data source: Sierksdorf September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sierksdorf During September

As summer fades into autumn, Sierksdorf, Germany, experiences a gradual decline in sunny weather, with September bringing a 29% chance of sunshine. This marks a slight drop from the summer months, where the chance of sun remained in the low thirties. While September may not boast the highest probabilities of clear skies—especially compared to the sunnier spells of April at 45%—it still offers a fair chance for those looking to enjoy the last vestiges of warm weather. Overall, the transition into fall is evident, making sunny days in September a delightful treat rather than the norm.

Percentage of Sunny Days in September in Sierksdorf

The chart illustrates the percentage of sunny days in Sierksdorf 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 Sierksdorf experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%27%36%45%27%36%32%33%29%30%15%19%
Data source: Sierksdorf September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sierksdorf in September

As summer gives way to the crispness of autumn in Sierksdorf, September offers a harmonious blend of daylight, basking the landscape in 12 hours of sunlight. This month marks a gentle decline from the 14 hours enjoyed in August, illustrating the shift towards shorter days as the year progresses. Interestingly, this trend reflects a gradual transition that characterizes the months from June's peak of 17 hours to the more subdued 10 hours anticipated in October. The lengthening shadows and deepening hues of September signal a beautiful farewell to summer, inviting residents and visitors alike to savor the warm days and cooler nights before the daylight diminishes further.

Average Daylight Hours in Sierksdorf for September

The chart illustrates the variation in daylight duration in Sierksdorf throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 1m9h 46m11h 54m14h 4m16h17h 1m16h 28m14h 44m12h 38m10h 28m8h 31m7h 27m
Data source: Sierksdorf daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Sierksdorf

As September unfolds in Sierksdorf, Germany, the average wind speed gently drops to 3.7 m/s (8 mph), marking a continuation of the slight decline seen over the summer months. Following the breezier days of August, September's winds offer a calm respite, blending with the early hints of autumn. This decrease contrasts with the brisker winds typically experienced in spring and late summer, such as the 4.2 m/s (9 mph) of August or the 4.8 m/s (11 mph) expected in October. Overall, September represents a transitional phase, where the fresh air begins to signal the changing season, inviting locals and visitors alike to embrace the tranquil ambiance as nature prepares for the approaching fall.

Average September Wind Speed in Sierksdorf

The chart displays monthly wind speed patterns in Sierksdorf, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.54.64.34.44.23.03.64.23.7 m/s4.84.34.5
Data source: Sierksdorf September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Sierksdorf Compares to Other Months

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

In September, temperatures in Sierksdorf range from a chilly 5°C (40°F) to a warm 29°C (85°F), with an average of 15°C (59°F). This month experiences about 49 mm (1.9 in) of rainfall over 8 days, accompanied by a relatively high humidity level of 82%. In contrast, January sees much colder conditions, with temperatures plunging to a minimum of -10°C (15°F) and an average of just 3°C (38°F), peaking at 13°C (55°F). Although January's precipitation is slightly higher at 55 mm (2.1 in), it occurs over more days—12 in total—while the humidity is even more pronounced at 91%. For more detailed insights, check out Sierksdorf weather in January.

September and February exhibit stark contrasts in weather conditions. In September, temperatures range from a cool 5°C (40°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (59°F). This month experiences slightly less precipitation over 8 days, with a total of 49 mm (1.9 in), and humidity levels around 82%. In contrast, February is much colder, with nighttime temperatures plummeting to -11°C (12°F) and an average temperature of just 3°C (38°F), reaching a maximum of 17°C (63°F). February also sees a similar total precipitation of 49 mm (1.9 in) but spread over 10 days, accompanied by even higher humidity at 89%. For more detailed insights into February weather, check out Sierksdorf weather in February.

When comparing the weather in September and March, a distinct contrast emerges. In September, temperatures range from a milder minimum of 5°C (40°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F), offering a pleasant late-summer climate. The precipitation in September averages 49 mm (1.9 in) over approximately 8 days, coupled with a relatively high humidity of 82%. In contrast, March presents a much colder setting, with temperatures dipping significantly—featuring a minimum of -12°C (10°F), an average of 5°C (41°F), and a maximum of 19°C (66°F). March also experiences slightly higher precipitation, averaging 59 mm (2.3 in) over about 11 days, and even higher humidity at 87%. For more detailed insights, visit Sierksdorf weather in March.

September and April exhibit notable differences in weather patterns. September generally enjoys warmer temperatures, with a minimum of 5°C (40°F) and an average of 15°C (59°F), peaking at 29°C (85°F). In contrast, April starts cooler, with a minimum of -2°C (29°F) and an average temperature of 8°C (47°F), reaching a maximum of 26°C (79°F). Both months experience humidity levels that hover around 82% for September and 83% for April, indicating a similar moisture presence in the air. Precipitation is fairly consistent, with September receiving 49 mm (1.9 in) over about 8 days, while April sees slightly less at 41 mm (1.6 in) over 9 days. For more detailed insights, you can check Sierksdorf weather in April.

In comparing the weather of September and May, September generally offers a wider temperature range, with a minimum of 5°C (40°F) and an average high of 29°C (85°F), compared to May's temperatures, which range from a minimum of 0°C (32°F) to a maximum of 28°C (83°F). While May has slightly lower average temperatures, it experiences comparable humidity levels at 78%, just slightly less than September's 82%. Additionally, precipitation is more frequent in May, with rain occurring on 12 days and totaling 59 mm (2.3 in), while September sees rain on 8 days, summing up to 49 mm (1.9 in). For more detailed insights on May weather, you can check Sierksdorf weather in May.

In September, temperatures range from a minimum of 5°C (40°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F). The month typically experiences 49 mm (1.9 in) of precipitation over about 8 days, contributing to a humidity level of 82%. In contrast, June features slightly warmer temperatures, with a minimum of 5°C (42°F) and a maximum of 32°C (90°F), averaging 17°C (64°F). Precipitation in June rises to 59 mm (2.3 in) across 10 days, along with a lower humidity of 77%. For more detailed insights into what to expect during June, you can check Sierksdorf weather in June.

In September, the weather tends to cool down compared to July, with minimum temperatures dropping to around 5°C (40°F) and an average of 15°C (59°F), while July enjoys warmer conditions with minimums around 8°C (47°F) and an average of 18°C (64°F). The maximum temperatures in September reach up to 29°C (85°F), which is significantly cooler than July's maximum of 34°C (93°F). Additionally, September experiences more precipitation, with 49 mm (1.9 in) falling over 8 days, compared to July's 79 mm (3.1 in) over 12 days. Humidity levels are slightly higher in September at 82%, while July maintains a humidity of 77%. For more detailed insights, you can refer to Sierksdorf weather in July.

In comparing the weather between August and September, August tends to be warmer with average temperatures reaching around 18°C (65°F) and maximums soaring up to 34°C (93°F). In contrast, September experiences cooler temperatures, with a minimum of 5°C (40°F) and an average of 15°C (59°F), making it feel more autumnal. Precipitation is slightly higher in August, with 68 mm (2.7 in) falling over 12 days, compared to September's 49 mm (1.9 in) over 8 days. Humidity levels are also notable, as September is more humid at 82% compared to August's 75%. For more detailed insights, you can explore Sierksdorf weather in August.

In September, the weather offers warmer temperatures with a minimum of 5°C (40°F) and an average of 15°C (59°F), peaking at a comfortable 29°C (85°F). The month sees about 49 mm (1.9 in) of precipitation across 8 days, with humidity levels averaging 82%. In contrast, October brings a noticeable drop in temperature, with a minimum of 0°C (32°F) and an average of 11°C (53°F), reaching a maximum of 25°C (78°F). This month also tends to be wetter, experiencing 71 mm (2.8 in) of rainfall over 14 days, and slightly higher humidity at 86%. For more detailed information, you can check out Sierksdorf weather in October.

September and November display notable contrasts in weather patterns. September enjoys a milder overall climate with average temperatures around 15°C (59°F) and the potential for warmer days reaching up to 29°C (85°F). In comparison, November sees a drop in temperatures, averaging around 7°C (44°F) with colder nights dipping to -2°C (29°F). While September experiences 49 mm (1.9 in) of precipitation over about 8 days, November has slightly less rainfall at 44 mm (1.7 in) but lasts over a longer stretch of 10 days. Additionally, humidity levels increase from 82% in September to 89% in November, reinforcing the chill of the approaching winter. For more insights on November weather, you can visit Sierksdorf weather in November.

September and December showcase stark contrasts in weather patterns. September typically enjoys milder conditions, with temperatures ranging from a pleasant minimum of 5°C (40°F) to a warm maximum of 29°C (85°F), accompanied by relatively low humidity at 82% and only 49 mm of precipitation over about 8 days. In contrast, December experiences a significant drop in temperature, averaging around 4°C (39°F), with nighttime lows plummeting to -12°C (11°F) and daytime highs not exceeding 12°C (53°F). This month also sees increased precipitation, totaling 61 mm over 13 days, and higher humidity levels at 92%. For more details on December weather, you can check Sierksdorf weather in December.

Compare Sierksdorf's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Sierksdorf

As September unfolds in Sierksdorf, it brings a delightful transition from the summer heat to a more temperate climate. With maximum temperatures reaching a pleasant 29°C, the month still offers warm days, but the average dips to a cooler 15°C, signaling the arrival of autumn. In contrast to the wetter summer months, September experiences less rainfall, totaling around 49 mm over just 8 days, making it a relatively dry month. The humidity also remains high at 82%, adding a slight crispness to the air that is characteristic of this time of year. Overall, September's weather in Sierksdorf is a refreshing blend of warmth and coolness, making it a unique month to enjoy the changing seasons and the picturesque landscapes. For more insights, check out the detailed Sierksdorf Climate.