Last updated: August 27, 2025
September in Zweisimmen, Switzerland presents a delightful transition into autumn with temperatures ranging from a maximum of 24°C (75°F) to a minimum of -3°C (27°F), averaging around 11°C (52°F). While the month brings a crispness to the air, it also sees 117 mm (4.6 in) of precipitation over 15 days, contributing to the lush, vibrant landscapes characteristic of this region. With a notable humidity level of 81%, the atmosphere is both refreshing and invigorating, making September an ideal time for enjoying the natural beauty and outdoor activities that Zweisimmen has to offer.
In Zweisimmen, Switzerland, September marks the transition from summer's warmth to the approaching chill of autumn. With minimum temperatures still hovering around a mild -3°C (27°F), it’s a pleasant time to explore the stunning alpine landscape. The average temperature rises to a comfortable 11°C (52°F), offering ideal conditions for outdoor activities before the cold sets in. By day, temperatures can peak at 24°C (75°F), inviting locals and visitors alike to bask in the last rays of summer sun. As September progresses, the comforting shift in climate serves as a gentle reminder of the impending seasonal change, making it a unique time of year for enjoying the beauty of the Swiss Alps.
In September, Zweisimmen experiences 117 mm (4.6 in) of precipitation over approximately 15 days, marking a notable transition as summer gives way to autumn. This month continues the trend of gradual precipitation reduction following the wet months of July and August, which recorded 200 mm and 180 mm respectively. September's rainfall can be characterized as a gentle tapering, reflecting the area's climatic shift from summer's lushness to the crisper, drier conditions of fall. Interestingly, the pattern of rainfall in September aligns with the drier months of February and April, where similar precipitation levels are observed, although September typically offers slightly more rain days due to lingering warm fronts. This blend of moisture and seasonal change sets the stage for the vibrant hues of autumn in the region's picturesque landscape.
In September, Zweisimmen experiences a mild humidity level of 81%, marking a slight rebound from the summer months, where humidity dipped to 77% in August. As the season transitions, this modest rise is indicative of the approach of autumn, with humidity levels generally increasing again in October to 89%. Throughout the year, Zweisimmen showcases a distinct trend: the highest humidity levels occur in the winter months of January and December, peaking at 91%. Conversely, late summer presents the lowest readings, creating a comfortable, albeit slightly humid, atmosphere in September that prepares the region for the cooler, wetter autumn days ahead.
As summer fades into autumn in Zweisimmen, Switzerland, the UV Index takes a noticeable dip in September, settling at a moderate level of 7, which indicates high exposure risk. After a peak in the summer months of June and July, with both hitting a high of 10 and requiring only 15 minutes for potential sunburn, September offers a slight reprieve with a more comfortable 25-minute burn time. This transition reflects the changing seasons, reminding us to remain vigilant about sun protection even as we welcome the cooler days ahead. For detailed insights on UV levels throughout the year, visit Zweisimmen UV Index.
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As September arrives in Zweisimmen, Switzerland, the golden hues of autumn begin to take center stage, complemented by a generous 325 hours of sunshine. This month marks a transition, nestled snugly between the vibrant summer months and the cooler autumn days, and it showcases a significant shift in sunlight, dropping from July's peak of 416 hours. Meanwhile, September's sunlight continues its steady decline toward the winter months, with October bringing 288 hours on the horizon. Notably, this trend highlights a gradual change in the landscape as the rich, sunlit days of summer give way to the crisp, colorful displays of autumn, inviting both locals and visitors to embrace the beauty of nature’s transformation.
In Zweisimmen, Switzerland, September offers a moderate 35% chance of sunny weather, which marks a slight increase from the summer months. As the region transitions from the warm embrace of summer, July and August display slightly higher percentages of sunshine at 32% and 33%, respectively. This upward trend in sunny days peaks toward the beginning of fall, as the chance climbs to 44% in October. Overall, while September enjoys a decent likelihood of clear skies, it is best to anticipate a mix of sun and clouds as the landscape begins to transition into autumn's vibrant hues.
As summer fades into the embrace of autumn, September in Zweisimmen, Switzerland offers a gentle transition in daylight duration. With 12 hours of daylight, the month captures a delightful balance between the vibrant brightness of summer, which boasts 15 hours of sunlight in June and July, and the shorter days ahead as winter approaches. While August still enjoys 14 hours of daylight, September signals the gradual retreat of the sun, paving the way for the crisp, cozy vibes of fall. This trend continues into October, where daylight dwindles to 10 hours, marking the start of shorter, more reflective days in the scenic landscape of the Swiss Alps.
As September rolls into Zweisimmen, Switzerland, the gentle caress of the average wind speed, which lingers around 1.2 m/s (3 mph), signals a subtle transition into the heart of autumn. This marks a dip from the slightly more invigorating breezes of the summer months, where speeds hovered around 1.4 m/s. The calm winds not only create a serene backdrop for the stunning landscapes but also hint at the approaching chill of winter. Observing the progression through the year, it’s clear that September’s gentle breath is part of a broader trend of moderated winds, paving the way for the crisp air of October and the reemergence of stronger gusts later in the year. Each cycle breathes life into the picturesque Swiss scenery, inviting visitors to savor the quiet beauty of the season.
Weather in Zweisimmen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Zweisimmen, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is significantly milder, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 24°C (75°F), creating a pleasant climate for outdoor activities. However, it still experiences considerable humidity at 81% and receives a fair amount of precipitation, totaling 117 mm (4.6 in) over about 15 days.
In contrast, January brings much harsher conditions, with temperatures dropping to a chilly average of -5°C (24°F), and lows reaching as low as -24°C (-10°F). While the precipitation in January is slightly higher at 150 mm (5.9 in) over 12 days, the humidity also increases to 91%, adding to the cold's intensity. For a more detailed overview of January weather patterns, check out Zweisimmen weather in January.
In a comparison of September and February weather, we observe significant differences in temperature and overall feel. September experiences milder temperatures, ranging from a chilly minimum of -3°C (27°F) to an average of 11°C (52°F) and a warm maximum of 24°C (75°F). In contrast, February is notably colder, with temperatures dipping to a low of -19°C (-2°F) and averaging around -1°C (30°F), reaching a maximum of 13°C (56°F). Both months receive comparable precipitation, at 117 mm (4.6 in), but September has a slightly higher number of rainy days at 15, compared to February’s 11 days. Additionally, February tends to be more humid, with levels reaching 89% compared to 81% in September. For a more detailed look at February weather, you can visit Zweisimmen weather in February.
September and March present contrasting weather patterns. In September, temperatures are generally milder, with a minimum of -3°C (27°F) and an average of 11°C (52°F), peaking at 24°C (75°F). The month experiences significant rainfall, totaling 117 mm (4.6 in) over 15 days and maintaining a humidity level of 81%. Conversely, March is considerably colder, with temperatures dropping to a minimum of -21°C (-5°F) and an average of only 1°C (34°F), while highs reach up to 16°C (62°F). Precipitation in March increases to 149 mm (5.9 in) over 16 days, accompanied by a higher humidity of 87%. For those interested, more detailed information can be found at Zweisimmen weather in March.
In comparing the weather of September and April, September generally offers milder temperatures, with a minimum of -3°C (27°F) and an average of 11°C (52°F), peaking at 24°C (75°F). In contrast, April is noticeably cooler, featuring a lower minimum temperature of -17°C (2°F) and an average of only 5°C (41°F), although it can reach a maximum of 20°C (69°F). Precipitation levels are slightly higher in September, totaling 117 mm (4.6 in) over 15 days, compared to April's 89 mm (3.5 in) over 12 days. Both months experience high humidity, with September at 81% and April slightly higher at 84%. For more detailed information, check Zweisimmen weather in April.
In comparing the weather of September and May, notable differences emerge. September tends to be milder, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 24°C (75°F) and an average of 11°C (52°F). In contrast, May experiences slightly lower average temperatures, with a minimum of -7°C (20°F) and a maximum of 26°C (80°F), averaging around 9°C (48°F). Rainfall is also more pronounced in May, with 205 mm (8.1 in) of precipitation over 21 days compared to September's 117 mm (4.6 in) over 15 days. Humidity levels remain relatively close, at 81% in September and 80% in May, making both months feel quite damp. For those interested in a detailed look at the weather during this time, Zweisimmen weather in May provides further insights.
When comparing the weather of September and June, there are noticeable differences in temperature and precipitation. September experiences a wider temperature range with minimums dropping to -3°C (27°F) and maximums reaching 24°C (75°F), leading to an average of 11°C (52°F). In contrast, June has milder conditions, with minimum temperatures at 0°C (33°F) and maximums peaking at 31°C (87°F), giving an average of 14°C (57°F). Precipitation is also more pronounced in June, totaling 181 mm (7.1 in) over 19 days, while September sees 117 mm (4.6 in) over 15 days. Both months have high humidity levels, with September at 81% and June slightly higher at 82%. For a more detailed look at June weather, check out Zweisimmen weather in June.
September generally offers cooler temperatures compared to July, with minimums dropping to -3°C (27°F) and average highs reaching only 24°C (75°F), while July sees a mild minimum of 3°C (38°F) and maximums peaking at 30°C (86°F). Additionally, September experiences approximately 117 mm (4.6 in) of precipitation over 15 days, which is lighter than July's 200 mm (7.9 in) across 18 rainy days. Both months maintain high humidity levels, with September at 81% and July slightly higher at 82%, contributing to a similarly damp atmosphere. For more detailed information about weather conditions in July, you can refer to Zweisimmen weather in July.
In comparing the weather of September and August, September presents cooler temperatures, with a minimum of -3°C (27°F) and an average of 11°C (52°F), while August remains warmer, featuring a minimum of 4°C (39°F) and an average of 15°C (59°F). The maximum temperature in August reaches 28°C (82°F), significantly higher than September's peak of 24°C (75°F). Precipitation levels are also notable, with September receiving 117 mm (4.6 in) of rain over 15 days, compared to August's higher total of 180 mm (7.1 in) spread over 17 days. Humidity in September stands at 81%, slightly above August’s 77%. For more detailed information, you can check Zweisimmen weather in August.
In September, the weather features a wider temperature range, with minimums around -3°C (27°F) and maximums reaching up to 24°C (75°F), resulting in an average of 11°C (52°F). The month experiences significant precipitation, totaling 117 mm (4.6 in) over approximately 15 days, paired with a humidity level of 81%. In contrast, October sees slightly cooler temperatures, with minimums dropping to -4°C (26°F) and maximums at 20°C (69°F), leading to a lower average of 7°C (44°F). The rainfall increases to 135 mm (5.3 in) spread over 13 days, along with a rise in humidity to 89%. For more detailed information, check out Zweisimmen weather in October.
In comparing the weather between September and November, a noticeable shift in temperature and conditions is evident. September typically experiences milder weather, with average temperatures around 11°C (52°F) and highs reaching up to 24°C (75°F). This month also sees significant precipitation, totaling 117 mm (4.6 in) over 15 days, accompanied by a humidity level of 81%. In contrast, November brings much cooler weather, with average temperatures dropping to just 1°C (34°F) and minimum temperatures plummeting to -12°C (10°F). Precipitation remains fairly constant at 109 mm (4.3 in) over 12 days, but the humidity increases to 89%, creating a much chillier and damp atmosphere. For more detailed insights into November weather, you can check Zweisimmen weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a minimum of -3°C (27°F) to a comfortable maximum of 24°C (75°F), with an average of 11°C (52°F). The month sees a moderate amount of precipitation at 117 mm (4.6 in) over 15 days, and humidity averages around 81%. In contrast, December brings much colder temperatures, with a minimum of -23°C (-10°F) and a maximum of only 8°C (47°F), averaging -3°C (26°F). Precipitation increases significantly to 226 mm (8.9 in) over 18 days, accompanied by higher humidity levels at 91%. For more specific details about conditions in December, you can refer to Zweisimmen weather in December.
As September unfolds in Zweisimmen, the transition from summer to autumn becomes increasingly evident. While the maximum temperatures hint at the lingering warmth of summer, averaging a cool 11°C reflects the approach of autumn. The increased precipitation brings a refreshing change, leading to more frequent rainfall days that nourish the landscape. With humidity levels soaring to 81%, this month showcases a distinct shift in climatic conditions compared to the sunnier days of summer. Embrace the vibrant hues of early autumn in Zweisimmen, and explore more about the local climate Zweisimmen Climate.