Last updated: August 27, 2025
In Bagnes, Switzerland, September ushers in a transitional climate, with temperatures ranging from a brisk -9°C (15°F) at night to a pleasant 20°C (68°F) during the day. The average temperature settles around 8°C (46°F), creating a refreshing atmosphere perfect for outdoor activities. With 82 mm (3.2 in) of precipitation spread over 13 days, this month often brings a mix of sunny and rainy spells, contributing to a humid environment at 73%. Embrace the changing season in Bagnes, where the beauty of autumn begins to unfold.
In September, Bagnes, Switzerland, begins to feel the gentle shift from summer warmth to the crispness of autumn. With average temperatures hovering around 8°C (46°F), the month presents a cozy ambiance. Early in the month, highs can reach up to 20°C (68°F), offering a perfect opportunity for hikes and outdoor adventures amid stunning fall foliage. However, as the days progress, nighttime temperatures dip to a chilly -9°C (15°F), reminding visitors that winter is on the horizon. This transitional month beautifully encapsulates the region's charm, balancing lingering warmth with the refreshing onset of cooler days ahead.
In September, Bagnes, Switzerland experiences a notable transition in precipitation patterns, with an average rainfall of 82 mm (3.2 in) over approximately 13 days. This marks a decline from the wetter summer months, where precipitation peaked in May at 153 mm (6.0 in). As autumn approaches, the precipitation days decrease, reflecting a seasonal shift. This trend of reduced rainfall continues into the colder months of October and November, which see an uptick in precipitation amounts, hinting at the onset of winter weather. Overall, September serves as a bridge between the lush summer and the crisp autumn, offering a balanced respite before the heavier rains of late fall.
As summer transitions into autumn, September in Bagnes, Switzerland experiences a modest rise in humidity, averaging 73%. This marks a slight uptick from the drier summer months of July and August, where humidity levels dipped to a comfortable 72% and 63%, respectively. The pleasant September air carries the remnants of summer warmth while gently paving the way for the cooler, wetter months ahead. With the humidity in this month indicating a gradual return to higher levels, it's a reminder that the richness of nature is soon to be revived, foreshadowing the upcoming November and December humidity averages, which soar back to 90%.
September in Bagnes, Switzerland, marks a transition as the UV Index gently declines to 7, classified as high. This suggests that while the sun's intensity is less formidable than in the peak summer months, caution is still advised, with a burn time of approximately 25 minutes for unprotected skin. The pattern observed throughout the year shows a gradual increase from January's UV Index of 3 to the height of 11 in June, before tapering off in the fall. As the days shorten and temperatures cool, outdoor enthusiasts can take advantage of the lingering sunny days while remaining aware of UV exposure. For essential guidelines on UV levels throughout the year, visit Bagnes UV Index.
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As summer gracefully transitions into fall, September shines brightly in Bagnes, Switzerland, boasting 330 hours of sunshine. This month marks a delightful peak in the basking hours, following the summer's high of 422 hours in July and 392 hours in August. While September’s sun-drenched days signal the end of the warm season, they still provide ample opportunity for outdoor adventures amidst the stunning alpine scenery. The gradual decline in daylight begins to set in, as October brings 292 hours, but September remains a golden window, inviting both locals and travelers to relish the crisp air and lingering warmth before the colder months take hold.
In Bagnes, Switzerland, September brings a moderate chance of sunny weather, with around 28% likelihood of enjoying clear skies. This marks a slight dip from the summer months, where the chance of sunshine peaks in August at 39%. Following the warm summer, September often transitions towards autumn, contributing to the overall decrease in sunshine. Interestingly, this month is on par with the sun probabilities of May and June, which highlights a pattern where early autumn does not guarantee abundant sunshine. As the year progresses, the chances of sunny days begin to rise again in October, jumping to 43%. Thus, while September offers a fair share of cloud cover, there's still an opportunity to bask in the brilliance of the sun amidst the colorful fall foliage.
As summer fades into autumn, September in Bagnes, Switzerland, marks a gentle transition in daylight duration, with the sun gracing the skies for about 12 hours a day. This decrease from the sun-drenched heights of 15 hours in July and August signals the slow retreat of summer's warmth. The month starts to usher in a more subdued atmosphere, as daylight gradually tapers off, reminiscent of the 11 hours found in March. With the arrival of September, locals and visitors alike can relish the lingering days of light while preparing for the cozy indoor moments that October's shorter days will bring.
As September unfolds in Bagnes, Switzerland, the breeze begins to whisper a gentle farewell to summer. With an average wind speed of just 1.0 m/s (2 mph), the month marks the year's calmest winds, contrasting sharply with the mild gusts seen in the earlier months. Interestingly, this subtle drop in wind intensity, following the slight variances of the preceding summer months, hints at a shift toward the quieter ambiance typical of autumn. As temperatures start to cool and nature prepares to transition, the serene winds remind us that the changing seasons often bring a tranquil stillness—a perfect backdrop for enjoying the stunning Alpine vistas.
Weather in Bagnes varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bagnes, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather conditions. In September, temperatures range from a chilly -9°C (15°F) at night to a mild 20°C (68°F) during the day, with an average of 8°C (46°F). During the month, precipitation totals 82 mm (3.2 in) over 13 days, accompanied by a moderate humidity level of 73%. In sharp contrast, January experiences much colder temperatures, with lows plunging to -29°C (-20°F) and a daytime maximum of only 5°C (41°F), leading to an average temperature of -10°C (14°F). Precipitation is higher at 137 mm (5.4 in) across 10 days, coupled with elevated humidity at 91%. For those interested in more details, check out the Bagnes weather in January.
In comparing the weather of September and February, notable differences emerge in both temperature and precipitation. September experiences milder temperatures, with a range from a minimum of -9°C (15°F) to a pleasant maximum of 20°C (68°F) and an average of 8°C (46°F). The month sees a total precipitation of 82 mm (3.2 in) over 13 days, coupled with a humidity level of 73%. In contrast, February is characterized by significantly colder conditions, with temperatures plunging as low as -24°C (-12°F) and averaging -6°C (21°F), reaching a maximum of only 7°C (45°F). Although February has higher total precipitation at 96 mm (3.8 in), it spreads across just 11 days and features a higher humidity of 87%. This stark contrast highlights the seasonal shift, making February much colder and wetter. For more detailed February weather insights, you can explore Bagnes weather in February.
The weather in September presents a milder climate, with temperatures ranging from a chilly minimum of -9°C (15°F) to a pleasant maximum of 20°C (68°F) and an average of 8°C (46°F). In contrast, March is markedly colder, featuring minimum temperatures plunging to -27°C (-16°F) and an average of -4°C (25°F), peaking at a maximum of just 10°C (51°F). While September typically sees 82 mm (3.2 in) of precipitation over 13 days, March experiences even higher precipitation levels at 123 mm (4.8 in) across 15 days, accompanied by slightly higher humidity at 84% compared to September's 73%. For a closer look at March weather specifics, you can visit Bagnes weather in March.
September and April exhibit distinct weather characteristics that reflect the transitional seasons. In September, temperatures range from a chilly -9°C (15°F) at night to a comfortable 20°C (68°F) during the day, with an average of 8°C (46°F). This month experiences 82 mm (3.2 in) of precipitation over approximately 13 days, coupled with a humidity level of 73%. In contrast, April's temperatures are generally colder, with a minimum of -18°C (-1°F) and a maximum of 13°C (55°F), averaging around 0°C (32°F). While April receives slightly less rainfall at 74 mm (2.9 in) over 11 days, it has a slightly higher humidity of 83%. For more detailed information about the weather in this month, check out Bagnes weather in April. Overall, September tends to be milder and more pleasant, while April remains firmly in the grip of early spring chill.
When comparing the weather in September and May, notable differences emerge. September typically features milder temperatures, with an average of 8°C (46°F), while May tends to be cooler, with an average temperature of just 4°C (40°F). Despite September having slightly warmer maximums, it also experiences fewer days of precipitation, averaging 13 days compared to May's 20 days, which brings a higher total precipitation of 153 mm (6.0 in) in May against September's 82 mm (3.2 in). Additionally, humidity levels are slightly higher in May at 78%, compared to 73% in September. For a detailed view of May weather in the area, you can visit Bagnes weather in May.
In comparing the weather between September and June, we see notable differences in temperature and precipitation patterns. September experiences a minimum temperature of -9°C (15°F) and an average of 8°C (46°F), peaking at a maximum of 20°C (68°F). This month also records 82 mm (3.2 in) of precipitation, spread over 13 days, resulting in a humidity level of 73%. In contrast, June is slightly warmer, with temperatures ranging from a minimum of -3°C (26°F) to an average of 10°C (50°F), and a maximum of 25°C (77°F). June sees higher precipitation at 114 mm (4.5 in), occurring over 17 days, and a humidity level of 75%. For more detailed information about June weather, please visit Bagnes weather in June.
When comparing the weather in September and July, notable differences emerge in temperature and precipitation patterns. September is generally cooler, with average temperatures ranging from a chilly 8°C (46°F) to a maximum of 20°C (68°F), while July sees warmer conditions, with temperatures averaging 12°C (54°F) and reaching up to 25°C (77°F).
In terms of precipitation, July experiences slightly more rainfall, totaling 125 mm (4.9 in) over 17 days, compared to September's 82 mm (3.2 in) over 13 days. Interestingly, both months have similar humidity levels, with September at 73% and July at 72%. For a more detailed look at July weather in the region, you can refer to Bagnes weather in July.
In comparing the weather of September and August, September generally experiences cooler temperatures with a minimum of -9°C (15°F) and an average of 8°C (46°F), while August sees milder conditions with a minimum of 0°C (32°F) and an average of 12°C (53°F). The maximum temperature in September reaches 20°C (68°F), slightly lower than August's peak of 23°C (74°F). Additionally, September witnesses more rainy days, totaling 13 with a precipitation of 82 mm (3.2 in), compared to August's 16 days of rain and higher precipitation of 124 mm (4.9 in). Humidity levels are also higher in September at 73%, compared to August's 63%. For more detailed information about August weather, visit Bagnes weather in August.
September and October present a notable shift in weather patterns. In September, temperatures range from a minimum of -9°C (15°F) to a maximum of 20°C (68°F), with an average of 8°C (46°F). The month experiences 82 mm (3.2 in) of precipitation over 13 days, accompanied by a humidity level of 73%. In contrast, October sees colder temperatures, with a minimum of -12°C (11°F), an average of 3°C (38°F), and a maximum of 16°C (60°F). The precipitation increases to 123 mm (4.8 in) over the same number of days, and humidity rises to 89%. This indicates that October tends to be wetter and chillier than September, a trend that can be explored further in detail at Bagnes weather in October.
September and November showcase a notable shift in weather conditions. In September, temperatures range from a minimum of -9°C (15°F) to a maximum of 20°C (68°F), with an average of 8°C (46°F). The month sees around 82 mm (3.2 in) of precipitation over approximately 13 days, paired with a humidity level of 73%. In contrast, November experiences harsher cold, with temperatures dipping to a minimum of -23°C (-10°F) and peaking at 12°C (53°F), averaging -4°C (25°F). Precipitation increases slightly to 103 mm (4.0 in) over 14 days, and humidity rises to 90%. For those interested in more detailed insights into November weather, visit Bagnes weather in November.
In September, the weather exhibits a milder range with temperatures averaging around 8°C (46°F), while the highs can reach up to 20°C (68°F). The month experiences about 82 mm (3.2 in) of precipitation over approximately 13 days, accompanied by a humidity level of 73%. In contrast, December brings much colder conditions, with average temperatures dropping to -8°C (17°F) and maximums only reaching 5°C (41°F). Precipitation significantly increases to 203 mm (8.0 in) over 18 days, and humidity rises to 90%, making the atmosphere feel more frigid. For more details about December weather, check out Bagnes weather in December.
As September unfolds in Bagnes, the weather offers a refreshing transition from the warm summer months to the cool embrace of autumn. With temperatures averaging a mild 8°C and reaching maximums of 20°C, the month exudes a crispness that invigorates both locals and visitors. Though it retains some summer warmth, the increase in precipitation days—with rain gracing the area for about 13 days—introduces a more dynamic atmosphere compared to the drier preceding months. This time of year also sees a noteworthy humidity level of 73%, adding to the lushness of the surrounding landscapes. If you are keen to delve deeper into what each season offers, don't hesitate to check out Bagnes Climate for more insights!