Last updated: August 27, 2025
In September, Les Brenets, Switzerland, experiences a dynamic climate that showcases the beauty of early autumn. With maximum temperatures reaching up to 27°C (82°F), the days can still feel quite warm, while the average settles around a comfortable 14°C (58°F). However, the period also brings a notable drop in temperatures, with minimums dipping to 3°C (37°F) at night. Visitors should be prepared for the 81% humidity that accompanies frequent rainfall, totaling 90 mm (3.6 in) over approximately 13 days. This blend of mild warmth and refreshing showers creates a unique atmosphere, perfect for those seeking to enjoy the stunning landscapes of the region.
As September unfolds in Les Brenets, Switzerland, temperatures start to mellow from the summer heat, creating a charming transition into autumn. With minimums around 3°C (37°F) and averages peaking at 14°C (58°F), the crisp air beckons outdoor enthusiasts to explore the breathtaking landscapes. Daytime highs can reach a pleasant 27°C (82°F), offering the perfect backdrop for picturesque hikes and scenic views. This month marks a shift from the warmth of summer, but remnants of the sun still linger, inviting visitors to enjoy the beauty of nature before the colder months set in. Overall, September strikes a delightful balance between lingering warmth and the freshness of early autumn, perfect for those seeking both adventure and tranquility.
In September, Les Brenets experiences a notable shift in weather patterns, with precipitation totaling 90 mm (3.6 in) over 13 days. This marks a slight decline from the previous months, which typically see higher rainfall—especially during the lush summer season. August's 136 mm of rain hints at the lingering warmth, while September's quieter precipitation suggests a transition into the cooler fall months. Visitors to this charming Swiss locale can expect occasional rain, but the overall decrease in both total rainfall and rainy days indicates a welcome reprieve from the summer deluge, making way for clearer skies and the stunning autumn foliage that characterizes the region.
In September, Les Brenets experiences a slight increase in humidity, averaging around 81%. This marks a seasonal shift as the summer months taper off, showing a transition from the relatively lower humidity of 77% in August. Interestingly, humidity levels tend to rise again in the autumn months, with October returning to 89%. Overall, the trend indicates that while early autumn may offer a breather from the summer warmth, the air remains comfortably moist, contributing to the lush landscapes that characterize this enchanting region of Switzerland.
As summer transitions into autumn in Les Brenets, Switzerland, the UV Index begins to decrease in September, settling at 6, which falls within the high exposure category. With a burn time of 25 minutes, sun safety remains important, especially as the intensity of UV radiation shifts from the extreme heights of the summer months. Notably, the UV Index experienced a peak in June and July, reaching 9, where the very high category prompted residents and visitors to stay vigilant. As we move further into the fall months, the index is expected to gradually decline, highlighting the ever-changing nature of UV exposure throughout the year. For more detailed information, visit Les Brenets UV Index.
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As September unfolds in Les Brenets, Switzerland, the golden glow of early autumn bathes the picturesque landscape, offering a delightful backdrop to enjoy the 332 hours of sunshine. While this marks a decrease from the sun-drenched peaks of summer, it still holds a certain charm, especially when compared to the brisker months that follow. The steady climb in daylight from January's modest 154 hours to the vibrant heights of July showcases the region's warm embrace during the summer months. However, as daylight hours begin their gradual retreat, the enchanting hues of September remind us of the beauty of transitions, inviting both locals and visitors to savor the lingering warmth before the cool whispers of autumn take hold.
In Les Brenets, Switzerland, September offers a moderate 34% chance of sunny weather, marking a slight dip from the summer months. This aligns with a general trend observed throughout the year wherein the likelihood of sunshine peaks in late spring and early summer, particularly in April at 49%. As summer transitions into fall, the chances of sun gradually decrease, reflecting the onset of more dynamic weather patterns. Nevertheless, September still retains a respectable amount of sunny days compared to the following months, making it a pleasant time to enjoy the region's breathtaking autumn scenery.
As September arrives in Les Brenets, Switzerland, the days begin to shorten after the long, sunlit summer months. With approximately 12 hours of daylight, this transitional month marks a gentle decline from the vibrant 15 hours of daylight experienced in June, July, and even into August. The gradual shift in daylight reflects the transition from summer's warmth to the cooler embrace of autumn, setting the stage for the approaching changes of October, which will offer only 10 hours of daylight. This ebbing light serves as a reminder of nature's rhythms, inviting residents to cherish the remaining warmth while preparing for the crispness of fall.
As September graces Les Brenets, Switzerland, a shift in the air becomes palpable. With an average wind speed of just 1.7 m/s (4 mph), the gentle breezes reflect the onset of autumn, contrasting sharply with the more vigorous winds of the preceding months. Throughout the summer, from June to August, wind speeds remained relatively low, hovering between 1.8 m/s and 2.1 m/s—indicative of a calm, soothing atmosphere perfect for leisurely outdoor activities. However, as the days shorten and the foliage begins to change, September's winds lull to the softest ebb of the year, suggesting a tranquil transition into the more brisk gusts expected in October. This gradual decrease highlights a natural rhythm in Les Brenets, where each season's unique character is both felt and celebrated.
Weather in Les Brenets varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Les Brenets, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present a stark contrast in weather conditions. In September, temperatures range from a mild 3°C (37°F) at night to a warm 27°C (82°F) during the day, with an average of 14°C (58°F). The month sees approximately 90 mm (3.6 in) of precipitation spread over 13 days and a relatively high humidity of 81%. In contrast, January experiences much colder temperatures, with a minimum of -16°C (3°F) and a maximum of just 13°C (56°F), averaging around 0°C (32°F). Precipitation increases slightly to 121 mm (4.8 in), also over 13 days, and humidity rises to 91%. For those interested in detailed weather patterns, you can check out the Les Brenets weather in January.
September and February present stark contrasts in weather. September typically enjoys milder temperatures, with a range from a chilly 3°C (37°F) to a warm 27°C (82°F), and an average of 14°C (58°F). It also sees considerable precipitation, with 90 mm (3.6 in) over 13 days and a humidity level of 81%. Conversely, February is marked by colder conditions, featuring temperatures that can drop to -13°C (8°F) and only reach a maximum of 16°C (62°F), resulting in an average of just 2°C (36°F). This month experiences similar precipitation levels at 93 mm (3.6 in) over 12 days, but with a higher humidity of 89%. For more specific details on February weather, you can check out Les Brenets weather in February.
When comparing the weather in September and March, notable differences emerge. September tends to be milder, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 27°C (82°F), and an overall average of 14°C (58°F). It experiences about 90 mm (3.6 in) of precipitation over approximately 13 days with a humidity level of 81%.
In contrast, March is considerably colder, featuring temperatures that range from -13°C (8°F) at night to a daytime maximum of 20°C (68°F), with an average of only 5°C (41°F). This month also sees more precipitation, totaling 126 mm (5.0 in) over 16 days, accompanied by higher humidity at 87%. For a detailed look at March weather specifically, you can refer to Les Brenets weather in March.
In comparing the weather of September and April, we see distinct seasonal differences. September tends to have a milder average temperature of 14°C (58°F), with maximums reaching up to 27°C (82°F), while April's average lags behind at 9°C (48°F) and peaks at 24°C (75°F). Despite September's warmer conditions, it experiences a bit more precipitation, totaling 90 mm (3.6 in) over 13 days, compared to April's lighter rainfall of 69 mm (2.7 in) over 12 days. Humidity levels are relatively close, with September at 81% and April slightly higher at 84%. For those interested in more specific climate details, you can visit Les Brenets weather in April.
When comparing the weather in September and May, notable differences emerge. September typically experiences a warmer average temperature of 14°C (58°F) compared to May's cooler 12°C (54°F). However, both months can reach a maximum of 28°C (82°F). In terms of precipitation, May is significantly wetter, receiving 166 mm (6.5 in) over 19 days, while September sees less rain at 90 mm (3.6 in) over 13 days. Humidity levels are similar, with September at 81% and May at 80%. For a detailed look at May's weather patterns, check out Les Brenets weather in May.
In comparing the weather between September and June, it’s evident that June tends to be warmer overall, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 33°C (91°F), compared to September's range of 3°C (37°F) to 27°C (82°F). June also experiences higher average humidity at 82%, while September hovers around 81%. However, June sees more precipitation, accumulating 150 mm (5.9 in) over 17 days, whereas September has 90 mm (3.6 in) spread across 13 days. For a closer look at June weather specifics in the Les Brenets area, check out Les Brenets weather in June.
The weather in September is notably cooler than in July, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 27°C (82°F), compared to July's range of 8°C (47°F) to 34°C (93°F). While September features an average temperature of 14°C (58°F), July enjoys a warmer average of 18°C (65°F). Precipitation is also more pronounced in July, totaling 146 mm (5.8 in) over 16 days, compared to September's 90 mm (3.6 in) over 13 days. Despite this, both months share similar humidity levels, with September at 81% and July at 82%. For more detailed insights, check Les Brenets weather in July.
In September, the weather cools down compared to August, with minimum temperatures dropping to 3°C (37°F) and average temperatures around 14°C (58°F). While August experienced notably warmer conditions, with average temperatures of 18°C (64°F) and highs reaching up to 33°C (92°F), September brings a shift with a maximum temperature of 27°C (82°F). Additionally, September sees increased precipitation, totaling 90 mm (3.6 in) over 13 days, compared to August’s 136 mm (5.3 in) over 17 days. Despite slightly higher humidity in September at 81% versus August’s 77%, both months exhibit distinct weather patterns indicative of the transition from summer to autumn. For more specifics about the weather in August, you can refer to Les Brenets weather in August.
In comparing the weather between September and October, September tends to be warmer with an average temperature of 14°C (58°F) and maximum highs reaching 27°C (82°F). In contrast, October sees a significant drop in temperatures, averaging 10°C (49°F) with maximums of 21°C (71°F), and even the minimum temperature can dip to 0°C (33°F). Precipitation also increases slightly in October, totaling 113 mm (4.5 in) compared to September’s 90 mm (3.6 in), although both months experience rain on about 13 days. Furthermore, humidity rises from 81% in September to 89% in October, making the air feel a bit more damp. For more detailed insights, you can check out Les Brenets weather in October.
September and November exhibit distinct contrasts in weather patterns. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 27°C (82°F), creating a comfortable average of 14°C (58°F). The month experiences about 90 mm (3.6 in) of precipitation over 13 days, with humidity levels around 81%. In contrast, November brings a significant drop in temperature, with a minimum of -5°C (23°F) and an average of only 4°C (40°F). The maximum temperature is milder at 18°C (65°F). Precipitation in November increases slightly to 99 mm (3.9 in) over 14 days, accompanied by higher humidity at 89%. For more details on November weather, visit Les Brenets weather in November.
The weather in September is generally milder compared to December, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 27°C (82°F) and an average of 14°C (58°F). In September, the precipitation is lower at 90 mm (3.6 in), occurring over 13 days, and the humidity is relatively high at 81%. In contrast, December experiences much colder temperatures, with a minimum of -8°C (18°F) and an average of just 2°C (35°F), reaching a maximum of 12°C (54°F). Additionally, December is wetter, with 175 mm (6.9 in) of precipitation spread over 19 days and a slightly higher humidity of 91%. For more detailed information on December weather in Les Brenets, please visit Les Brenets weather in December.
As September unfolds in Les Brenets, the weather begins to transition from the warmth of summer to the crispness of autumn. With average temperatures hovering around a comfortable 14°C (58°F), the month offers a refreshing respite compared to the hotter summer months, while also seeing a noticeable increase in humidity levels at 81%. Although precipitation is more frequent, with rain occurring on 13 days, the overall atmosphere remains vibrant and invigorating. This blend of conditions makes September a unique time for both locals and visitors to experience the picturesque beauty of the region. For a deeper understanding of the climatic nuances throughout the year, explore Les Brenets Climate.