September Weather in Kussnacht, Switzerland

Last updated: August 27, 2025

September in Kussnacht, Switzerland offers a captivating blend of mild temperatures and refreshing rainfall. With maximums reaching 25°C (77°F) and averages around 13°C (56°F), the weather lends itself to outdoor exploration. However, as autumn approaches, expect a cooler minimum of 1°C (34°F) at night. The month is marked by 146 mm (5.8 in) of precipitation spread over 15 days, contributing to a vibrant and lush landscape. With an humidity level of 83%, the crisp air is invigorating, making September an enchanting time to experience this picturesque Swiss town.

September Temperature in Kussnacht

In Kussnacht, Switzerland, September ushers in a charming transition from the warmth of summer to the cool embrace of autumn. With temperatures ranging from a minimum of 1°C (34°F) to a max of 25°C (77°F), the month offers a delightful average of 13°C (56°F), striking a balance that encourages outdoor exploration. The gradual dip in temperatures highlights a shift from the peak summer days, as the warm days give way to crisp, refreshing evenings. This period showcases the beauty of nature as the foliage transforms, inviting both locals and visitors to enjoy the breathtaking scenery. As September unfolds, Kussnacht is a perfect canvas of tranquility and inviting climate, making it an ideal time to experience the serene alpine environment.

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

The chart illustrates September temperature patterns in Kussnacht, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kussnacht, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec303438445160636356483933
Data source: Temperature data for Kussnacht 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 Kussnacht

In September, Kussnacht experiences a notable transition in its precipitation patterns, receiving 146 mm (5.8 in) of rain over 15 days. This amount reflects a slight decrease from the summer months, which peak in August with 203 mm (8.0 in) during 18 rainy days. The trend shows that September continues to hold onto the lingering summer moisture while also hinting at the approaching autumn, characterized by a mix of sunny days and increasing cloud cover. Compared to the preceding months, the September precipitation strikes a balance, offering just enough rain to sustain the lush landscapes of Switzerland while laying the groundwork for the wetter autumn months ahead.

September Precipitation Trends in Kussnacht

The chart displays monthly precipitation patterns in Kussnacht, 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. In Kussnacht, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec144106127104163189190203146165102171
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kussnacht

As September arrives in Kussnacht, Switzerland, humidity levels settle at a comfortable 83%, marking a subtle transition from the drier summer months. Following the peak summer humidity of 80% in August, September reveals a slight uptick, which is part of a gradual increase as the colder months approach. This trend continues into October and December, where humidity levels soar back to around 90%. Overall, the data illustrates a seasonal pattern: as the year progresses from the dry spring months, the humidity begins to rise, culminating in a moist winter environment that characterizes this picturesque Swiss locale. The pleasant September weather invites outdoor exploration, while the impending increase in humidity hints at the cozy, chilly months to come.

September Average Humidity in Kussnacht

This chart illustrates the average monthly humidity levels in Kussnacht, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kussnacht is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kussnacht

In September, Kussnacht experiences a UV Index of 6, indicating a high exposure category with a burn time of approximately 25 minutes. This marks a slight reduction from the peak summer months, where UV levels soared to 9, making the sun's rays particularly intense in July and June. As autumn approaches, the UV Index begins to decline, moving toward the moderate levels seen in October, yet still demands caution for those enjoying the lingering warmth of late summer. As always, it’s important to stay informed and protect your skin during peak sun exposure. For more detailed information, visit Kussnacht UV Index.

Maximum UV Index Levels in Kussnacht for September

The chart shows the monthly maximum UV Index (UVI) for Kussnacht 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. In September, the maximum UV index in Kussnacht typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Kussnacht 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 Kussnacht

As summer gently fades, September in Kussnacht, Switzerland continues to bask in a generous 320 hours of sunshine. This iconic month bridges the vibrant warmth of late summer and the crisp beginnings of autumn, offering a reprieve from the cooler days ahead. While sunshine hours begin to decline from the peak of 415 hours in July, the drop is relatively mild, showcasing the enduring allure of Swiss landscapes bathed in golden light. Notably, September's glow retains more daylight than the preceding months of October and November, emphasizing its role as a radiant conclusion to the sun-soaked season. Visitors can still revel in the beauty of this picturesque town, where the gentle hues of early autumn foliage blend seamlessly with the lingering warmth of summer.

Monthly Sunshine Duration in Kussnacht: September Highlighted

The September sunshine duration represents the total number of hours Kussnacht 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.
JanFebMarAprMayJunJulAugSepOctNovDec164h228h300h358h370h385h415h384h320h279h219h185h
Data source: Kussnacht September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kussnacht During September

In Kussnacht, Switzerland, September offers a moderate chance of sunshine, at around 34%, fitting into a trend of fluctuating sun exposure throughout the year. As the lingering warmth of summer begins to fade, the likelihood of clear skies shows a slight increase compared to the preceding months, where it hovered between 30% and 33% in June through August. This small rise in sunny days in September suggests a promising transition, offering opportunities for outdoor enthusiasts to enjoy the changing scenery, though it remains prudent to prepare for the occasional cloud cover as autumn begins to set in. Overall, September captures a charming blend of summer's end and autumn's arrival, with a decent chance to bask in the sun before the days grow shorter.

Percentage of Sunny Days in September in Kussnacht

The chart illustrates the percentage of sunny days in Kussnacht 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 Kussnacht experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%35%42%44%29%30%31%33%34%35%23%29%
Data source: Kussnacht September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kussnacht in September

As September unfolds in Kussnacht, Switzerland, the days begin to shorten, with daylight hours averaging 12. While this marks a gradual decline from the sun-drenched heights of 15 hours in June, July, and May, September still offers a generous glow compared to the more subdued 10 hours of October and 9 hours in November that follow. This transitional month serves as a bridge between the vibrant lushness of summer and the gentle onset of autumn, allowing residents to savor the changing landscape under the mellow light of the early fall sun. The trends in daylight duration highlight not just the passage of time but the dynamic beauty of Kussnacht's seasonal shifts.

Average Daylight Hours in Kussnacht for September

The chart illustrates the variation in daylight duration in Kussnacht throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 58m10h 17m11h 56m13h 37m15h 4m15h 48m15h 25m14h 7m12h 30m10h 49m9h 20m8h 33m
Data source: Kussnacht daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kussnacht

As September arrives in Kussnacht, Switzerland, the winds begin to mirror the tranquility of the early autumn season, with an average speed of just 1.2 m/s (3 mph). This gentle breeze is a subtle reminder of summer's departure, as it follows a trend of gradually decreasing wind speeds observed throughout the warmer months. From June to September, the winds steadily declined from 1.3 m/s (3 mph) to the year's lowest average, suggesting a calming atmosphere perfect for savoring the late-season vistas. Interestingly, this period marks a shift that continues into the autumn months, where the wind speeds show a slight uptick in October, hinting at the changing dynamics of the season. As nature transitions, September's gentle winds invite reflection and peaceful enjoyment of Kussnacht's stunning landscape.

Average September Wind Speed in Kussnacht

The chart displays monthly wind speed patterns in Kussnacht, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.61.41.51.61.31.31.21.2 m/s1.41.31.4
Data source: Kussnacht September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kussnacht Compares to Other Months

Weather in Kussnacht varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kussnacht, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January exhibit stark contrasts in weather. In September, temperatures range from a mild 1°C (34°F) at night to a pleasant 25°C (77°F) during the day, making it a much warmer period with an average of 13°C (56°F). The month is characterized by relatively high humidity at 83% and significant rainfall, totaling 146 mm (5.8 in) over approximately 15 days.

In contrast, January experiences much colder conditions, with temperatures dipping as low as -15°C (5°F) and only reaching a maximum of 11°C (52°F), resulting in an average temperature of -1°C (30°F). The humidity is slightly higher at 92%, and precipitation is also abundant, amounting to 144 mm (5.7 in) over 13 days. For more detailed information on the weather in this month, you can check out Kussnacht weather in January.

When comparing the weather in September and February, the differences are striking. September experiences milder temperatures, ranging from a minimum of 1°C (34°F) to a maximum of 25°C (77°F), with an average of 13°C (56°F). It is relatively humid at 83%, and the month sees a fair amount of rainfall, accumulating 146 mm (5.8 in) over about 15 days. In contrast, February is much colder, with temperatures ranging from a chilling minimum of -19°C (-1°F) to a maximum of 14°C (58°F), resulting in an average of just 1°C (34°F). Although there is slightly less precipitation at 106 mm (4.2 in) and spread over 12 days, the humidity is higher at 89%. For more detailed insights about February weather, you can visit Kussnacht weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a mild 1°C (34°F) at night to a pleasant 25°C (77°F) during the day, with an average of 13°C (56°F). The month experiences significant rainfall, totaling 146 mm (5.8 in) over about 15 days, accompanied by high humidity at 83%. Conversely, March is much colder, with nighttime lows plummeting to -15°C (6°F) and daytime highs reaching only 18°C (64°F), averaging around 3°C (38°F). Though March receives slightly less precipitation at 127 mm (5.0 in) over 17 days, it maintains higher humidity levels at 87%. For more details on March weather, you can check Kussnacht weather in March.

September and April present distinct weather characteristics. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 25°C (77°F), with an average of 13°C (56°F). This month experiences more precipitation, totaling 146 mm (5.8 in) over about 15 days, and maintains a high humidity level of 83%. In contrast, April features lower temperatures, with a minimum of -7°C (19°F) and an average of 7°C (45°F), peaking at 22°C (71°F). The precipitation is also less, measuring 104 mm (4.1 in) across 12 days, while the humidity is slightly higher at 84%. For more detailed insights on April weather, visit Kussnacht weather in April.

In comparing the weather of September and May, we see notable differences and similarities. September generally has a milder temperature range with a minimum of 1°C (34°F) and an average of 13°C (56°F), peaking at a comfortable 25°C (77°F). In contrast, May starts with a lower minimum of -7°C (19°F), averages around 10°C (51°F), but can reach up to 27°C (80°F) on warmer days. Both months experience considerable precipitation, with September recording 146 mm (5.8 in) over 15 days and May slightly higher at 163 mm (6.4 in) over 19 days. Humidity levels are fairly close, with September at 83% and May at 80%. For a closer look at the weather specifics in May, you can refer to Kussnacht weather in May.

When comparing the weather in September and June, notable differences emerge. September generally features a min temperature of 1°C (34°F) and an average of 13°C (56°F), while June starts off warmer with a minimum of 4°C (39°F) and an average of 16°C (60°F). The maximum temperatures in June can reach as high as 31°C (88°F), significantly warmer than September's peak of 25°C (77°F). Additionally, June experiences slightly more precipitation, with 189 mm (7.4 in) over 18 days, compared to September's 146 mm (5.8 in) over 15 days. Humidity levels are quite similar, with September at 83% and June at 82%. For a detailed look at the weather specifics, you can refer to Kussnacht weather in June.

When comparing the weather between September and July, several notable differences emerge. September experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 13°C (56°F), while July boasts milder temperatures, featuring a minimum of 7°C (45°F) and an average of 17°C (63°F). In terms of extremes, July can reach a maximum of 31°C (87°F), significantly warmer than September's maximum of 25°C (77°F).

Precipitation levels are higher in July, with 190 mm (7.5 in) over 18 days compared to September's 146 mm (5.8 in) over 15 days; however, both months share the same humidity level of 83%. This makes July not only warmer but also slightly wetter than September. For more detailed insights on July weather, you can visit Kussnacht weather in July.

In comparing the weather of September and August, we observe a notable decline in temperature as September experiences a minimum of 1°C (34°F) and an average of 13°C (56°F), significantly cooler than August's minimum of 7°C (45°F) and average of 17°C (63°F). Additionally, the maximum temperatures are lower in September, peaking at 25°C (77°F) compared to August's 29°C (84°F). While September has slightly less rainfall at 146 mm (5.8 in) over 15 days, compared to August's 203 mm (8.0 in) across 18 days, the humidity in September is higher at 83%, compared to 80% in August. For a more detailed look at August weather specifics, visit Kussnacht weather in August.

In comparing the weather between September and October, it’s evident that October experiences cooler temperatures overall, with an average of 9°C (49°F) compared to September's 13°C (56°F). Both months start with the same minimum temperature of 1°C (34°F), but October's max temperature drops to 20°C (68°F), a notable decrease from September's 25°C (77°F). Precipitation increases slightly in October to 165 mm (6.5 in), occurring over 14 days, compared to September's 146 mm (5.8 in) over 15 days. Furthermore, humidity rises in October to 90%, up from 83% in September. For more detailed insights into October weather in this region, you can check Kussnacht weather in October.

In comparing the weather between September and November, notable differences emerge. September boasts a wider temperature range, with minimums around 1°C (34°F) and maximums reaching up to 25°C (77°F), while November sees a decrease in overall temperatures, ranging from a chilly -7°C (19°F) to a maximum of 19°C (66°F). Precipitation levels are slightly lower in November at 102 mm (4.0 in) over 14 days, compared to September's 146 mm (5.8 in) over 15 days. Additionally, November's humidity rises to 88%, slightly higher than September's 83%. Overall, September features more moderate temperatures, making it more temperate, while November ushers in a distinct chill. For those curious about specifics for this month, Kussnacht weather in November provides detailed insights.

September and December weather exhibit notable differences in temperature and precipitation patterns. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 25°C (77°F), with an average of 13°C (56°F). The month sees about 146 mm (5.8 in) of precipitation over 15 days, accompanied by a humidity level of 83%. In contrast, December experiences much colder temperatures, with a minimum of -11°C (12°F), an average of 1°C (33°F), and a maximum of 11°C (52°F). Precipitation increases to 171 mm (6.7 in) across 18 days, along with a higher humidity of 90%. For more details, you can check Kussnacht weather in December.

Compare Kussnacht's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kussnacht

As September unfolds in Kussnacht, it brings a unique blend of mild days and brisk evenings, distinguishing itself from the sweltering summer months that precede it. With an average temperature that cools down, this month invites a refreshing transition into autumn as the scenery begins to shift. However, it's also a time of increased precipitation, with rain gracing about half the month, which adds to the region's lush greenery. The higher humidity levels maintain that quintessential Swiss freshness, making September a distinctive experience. For those curious about the overall weather patterns, exploring the Kussnacht Climate can provide deeper insights into what to expect throughout the year.