Last updated: August 27, 2025
In September, Lenk, Switzerland experiences a diverse range of weather conditions that reflect the transition from summer to autumn. Average temperatures settle around 9°C (49°F), with daily maximums reaching up to 22°C (72°F), while nighttime drops can plunge to a chilly -5°C (23°F). This month sees an average precipitation of 131 mm (5.1 in) over approximately 16 days, contributing to the region's lush landscape. With humidity levels hovering around 81%, visitors should be prepared for a mix of crisp, refreshing air and occasional showers, creating a picturesque setting for outdoor activities amidst the stunning Swiss Alps.
In September, Lenk, Switzerland begins to transition from the warmth of summer to the crispness of autumn. As temperatures drop, the minimum settles at a refreshing -5°C (23°F), while the average rises to a comfortable 9°C (49°F), peaking at a lovely 22°C (72°F) during the day. This month marks a notable shift, showing a gradual cooldown from August, where temperatures hovered around 1°C (35°F) at night and reached 26°C (78°F) by day. The emerging chill hints at the approaching winter, yet the pleasant afternoons still invite outdoor activities amid the stunning alpine scenery, making September a unique time to experience Lenk's natural beauty.
In September, Lenk, Switzerland experiences a shift in its precipitation profile, with 131 mm (5.1 in) of rain recorded over 16 days. This marks a noticeable decrease from the summer months, where July and August saw substantial rainfall of 224 mm and 196 mm, respectively. As the days grow shorter and temperatures begin to drop, September's precipitation hints at the arrival of autumn, offering a glimpse of the region's transition from vibrant summer storms to the wetter conditions that define the upcoming months. Despite the reduced rainfall, the consistent number of rainy days reflects the lingering influence of late-summer weather patterns, setting the stage for what lies ahead.
In September, Lenk, Switzerland experiences a moderate humidity level of 81%, which marks a slight increase from the 77% observed in August. This gradual rise continues the trend of higher humidity as the year transitions into autumn, following a consistent pattern where humidity levels peak in the cold months of winter, reaching 91% in January and December. Despite the drop in summer, September maintains a comfortable moisture balance, making it an inviting time for outdoor activities, as the cooler temperatures complement the lingering warmth of summer. Overall, Lenk's humidity trends reflect the influence of seasonal changes, with September serving as a bridge between the dry warmth of summer and the damp chill of fall.
As summer fades into autumn, the UV Index in Lenk, Switzerland dips to a high level of 7 in September, marking a transition from the extreme sunlight of midsummer. This level signifies a burn time of just 25 minutes, reminding outdoor enthusiasts to take precautions against harmful UV rays, especially after the intense exposure experienced in July and August. Compared to the extremes of June's index of 11, September offers a gentler sun, yet vigilance remains key. With October following closely behind at a UV Index of 6, the month of September offers a sweet spot for outdoor activities before the cooler temperatures set in. For more detailed information on UV exposure, visit Lenk UV Index.
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As summer gracefully transitions into autumn, September in Lenk, Switzerland offers a delightful blend of warmth and cooler breezes, basking in an impressive 323 hours of sunshine. This marks a subtle yet noteworthy decline from the peak summer months of July and August, which enjoy 416 and 383 hours respectively. Despite the gradual reduction in sunlight, September retains a vibrant charm, showcasing a significant number of bright days that invite both locals and visitors to explore the breathtaking landscapes. As the leaves begin to change, the sun still shines warmly enough to extend those summer adventures, reminding us that the beauty of Lenk lingers well beyond the height of summer.
In Lenk, Switzerland, September offers a 30% chance of sunny weather, aligning with the warmer months of summer, yet not quite reaching the peaks seen in the heart of spring. While this percentage suggests a reasonable opportunity for sunshine, it's notable that the likelihood remains consistent with the preceding summer months of July and August, which hover around the same sun exposure. Interestingly, October shows a remarkable increase to 42%, hinting at a transition towards clearer skies as autumn sets in. Therefore, while September may boast moderate sunny potential, the promise of brighter days seems to flourish as the season progresses, making it a key month for those hoping to enjoy the beauty of Lenk’s stunning landscapes under the sun.
As the summer warmth begins to wane, September in Lenk, Switzerland, offers a gentle transition into autumn with 12 hours of daylight. This marks a slight decline from the sun-drenched peaks of August, which basked in 14 hours. The month reflects an ongoing trend of diminishing daylight as the year progresses, following a steady increase from 9 hours in January to a peak of 15 hours during the captivating summer months of June and July. September’s reduction hints at the approaching chill of October, which will further shorten the days to 10 hours. As daylight wanes, the landscape transforms, inviting locals and visitors alike to embrace the changing season's beauty.
As summer gives way to autumn in Lenk, Switzerland, the wind begins to whisper a softer tune. September, with an average speed of just 1.1 m/s (2 mph), marks the start of a gentle decline in breezy days, following the steady 1.2 m/s during the summer months. This slight reduction hints at the tranquility that comes with the changing seasons, creating a calm backdrop perfect for outdoor activities. While the subsequent months see a return to modest averages of 1.4 m/s, September's lull invites visitors to embrace the serene beauty of the landscape, heralding autumn's arrival with gentle caresses of wind that soothe the soul.
Weather in Lenk varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lenk, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is milder with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 22°C (72°F), averaging around 9°C (49°F). This month experiences approximately 131 mm (5.1 in) of precipitation over 16 days and a humidity level of 81%. In contrast, January brings much colder temperatures, with lows plummeting to -26°C (-14°F) and highs only reaching up to 7°C (46°F), averaging -7°C (20°F). January is slightly wetter, with 174 mm (6.8 in) of precipitation over 12 days and a higher humidity of 91%. For more details on January weather, you can check Lenk weather in January.
September and February present markedly different weather conditions. In September, temperatures range from a chilly -5°C (23°F) at night to a comfortable 22°C (72°F) during the day, with an average of 9°C (49°F). This month experiences moderate precipitation of 131 mm (5.1 in) over 16 days, contributing to a humidity level of 81%. In contrast, February is much colder, with temperatures dropping as low as -22°C (-8°F) while averaging -3°C (26°F) and peaking at a mild 11°C (53°F). The month has slightly more precipitation at 132 mm (5.2 in) but over fewer days, just 11. Notably, February also has a higher humidity at 89%, making the air feel even colder. For detailed insights on February weather, you can visit Lenk weather in February.
In comparing the weather between September and March, we see striking differences in temperature and conditions. September typically experiences milder temperatures, ranging from a minimum of -5°C (23°F) to a maximum of 22°C (72°F), averaging around 9°C (49°F). In contrast, March can be significantly colder, with temperatures dropping to a minimum of -24°C (-11°F) and peaking at 14°C (58°F), averaging -1°C (31°F). Both months see similar amounts of precipitation at around 16 days, but March has a slightly higher total at 161 mm (6.3 in) compared to September's 131 mm (5.1 in). Moreover, humidity levels are higher in March at 87%, compared to September’s 81%. For more details on the conditions you might expect, you can check Lenk weather in March.
September generally presents milder weather compared to April, with average temperatures ranging from -5°C (23°F) to 22°C (72°F) compared to April's colder highs and lows of -15°C (5°F) to 18°C (64°F). While September experiences a higher average maximum temperature, April tends to have more frosty nights, showcasing a sharper transition from winter to spring. Additionally, September sees more rainfall with 131 mm (5.1 in) over 16 days, in contrast to April's 99 mm (3.9 in) over 12 days, indicating a wetter start to autumn. Both months have relatively high humidity levels, with April at 84% and September slightly lower at 81%. For those interested in detailed insights about April weather, you can check Lenk weather in April.
September generally presents a milder climate compared to May, with average temperatures hovering around 9°C (49°F) and maximums reaching up to 22°C (72°F). In contrast, May starts with slightly colder averages of 7°C (44°F) and can peak at 24°C (75°F), showcasing a mix of warm and chilly days. Precipitation in May is notably higher, totaling 223 mm (8.8 in) over 21 days, while September sees 131 mm (5.1 in) spread over just 16 days, contributing to a rainier atmosphere. Both months share similar humidity levels, with September at 81% and May at 80%, making for a comfortable yet damp climate. For more detailed weather statistics, check out Lenk weather in May.
September and June present contrasting weather conditions. In September, temperatures vary from a chilly minimum of -5°C (23°F) to a comfortable maximum of 22°C (72°F), with an average of 9°C (49°F). On the other hand, June enjoys milder temperatures, ranging from -2°C (28°F) to a warm maximum of 29°C (84°F), averaging 12°C (54°F). While September receives 131 mm (5.1 in) of precipitation over 16 rainy days, June sees a higher total of 184 mm (7.2 in) across 20 days, marking it as a wetter month. Humidity levels are quite similar, at 81% for September and 82% for June. For more details about June weather, you can visit Lenk weather in June.
When comparing the weather in September and July, notable differences in temperature and precipitation patterns emerge. September experiences a broader temperature range, with minimums dipping to -5°C (23°F) and maximums reaching 22°C (72°F), while July boasts milder conditions, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (83°F). Precipitation is significantly higher in July, totaling 224 mm (8.8 in) over 20 days, compared to September’s 131 mm (5.1 in) over 16 days. Humidity levels are fairly similar in both months, hovering around 81-82%. For a detailed look at July weather, you can visit Lenk weather in July.
In comparing the weather of September and August, notable differences emerge. September experiences a wider temperature range, with minimums dipping to -5°C (23°F) and maximums reaching 22°C (72°F), which is cooler than August's minimum of 1°C (35°F) and maximum of 26°C (78°F). The average temperature in September stands at 9°C (49°F), compared to August's warmer average of 13°C (55°F). Additionally, while September sees significant rainfall with 131 mm (5.1 in) over 16 days, August experiences even higher precipitation totaling 196 mm (7.7 in) over 20 days. Humidity is slightly higher in September at 81%, compared to 77% in August. For more detailed weather data, visit Lenk weather in August.
September generally offers milder temperatures, with an average of 9°C (49°F) and maximums reaching 22°C (72°F). However, the month also sees significant rainfall, totaling 131 mm (5.1 in) over 16 days, contributing to a humidity level of 81%. In contrast, October experiences cooler conditions, with an average temperature of 5°C (41°F) and a maximum of 18°C (66°F). Precipitation increases slightly to 151 mm (5.9 in) but occurs over fewer days, 13 in total, resulting in a higher humidity level of 89%. For those looking to explore October weather specifics, you can check out Lenk weather in October.
September weather typically presents a milder climate with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 22°C (72°F) and an average of 9°C (49°F). Although the month experiences considerable rainfall, totaling 131 mm (5.1 in) over 16 days, humidity remains relatively lower at 81%. In contrast, November ushers in a more frigid environment, with average temperatures plummeting to -1°C (31°F), ranging between a minimum of -18°C (0°F) and a maximum of 16°C (60°F). Precipitation is slightly less at 107 mm (4.2 in) over 12 days, but the humidity rises to a notable 89%. For more detailed information on the climate during this time of year, you can check Lenk weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a minimum of -5°C (23°F) to a maximum of 22°C (72°F), with an average temperature of 9°C (49°F). The month experiences significant precipitation, totaling 131 mm (5.1 in) over about 16 days, accompanied by a humidity level of 81%. In contrast, December brings much colder temperatures, with lows plummeting to -26°C (-15°F) and highs reaching only 7°C (44°F), resulting in an average temperature of -6°C (22°F). Moreover, it sees increased precipitation of 248 mm (9.8 in) over 18 days, while humidity rises slightly to 91%. For more details regarding weather trends, check Lenk weather in December.
As September unfolds in Lenk, the weather showcases a distinct shift, transitioning from the warmth of summer to the crispness of autumn. With temperatures averaging a comfortable 9°C, this month often feels refreshing, especially compared to the hotter summer months. However, be prepared for notable rainfall, with 16 days experiencing 131 mm of precipitation, making it one of the wetter months of the year. Humidity remains relatively high at 81%, adding to the cool, misty atmosphere typical of autumn. This blend of conditions creates a unique experience, perfect for enjoying the stunning landscapes. For a deeper understanding of the region's climate throughout the year, check out Lenk Climate.