Last updated: August 27, 2025
Experience the serene beauty of Chateau-d'Oex, Switzerland in September, where the weather is a delightful blend of crispness and warmth. The maximum temperature peaks at a pleasant 24°C (75°F), while the average hovers around a cool 11°C (52°F), dipping to a brisk -3°C (27°F) on occasion. This charming month brings 117 mm (4.6 in) of precipitation over 15 days, enriching the landscape’s lush greenery. With a humidity level of 81%, the air remains refreshingly crisp, making it an ideal time for outdoor adventures amidst the stunning Swiss Alps.
In September, Château-d'Oex transitions comfortably from the summer warmth, offering a delightful range of temperatures that invite exploration of its stunning surroundings. The month sees minimums around -3°C (27°F), providing a crispness in the air, while average highs reach a pleasant 24°C (75°F). This signifies a decline from the peak summer heat, yet remains mild enough for outdoor activities amidst the breathtaking Swiss landscape. However, as the month progresses, the average temperature cools to about 11°C (52°F), hinting at the impending transition to autumn's embrace. This remarkable variability makes September a particularly enchanting time to experience the beauty and charm of Château-d'Oex, with the vibrant colors of fall soon to follow.
In September, Chateau-d'Oex experiences a mild transition into autumn with 117 mm (4.6 in) of precipitation spread over 15 days, continuing the trend of balanced rainfall observed throughout the summer months. This marks a slight decrease in rainfall compared to the earlier summer, where July and August saw heavier totals of 200 mm and 180 mm, respectively. The consistent precipitation pattern, however, reaffirms the region's lush, green landscape as it prepares for the colder months. As the autumn leaves begin to fall, the frequency of rainy days showcases the last whispers of summer while hinting at the coming winter's embrace.
In Chateau-d'Oex, Switzerland, September brings a slight rebound in humidity levels, rising to 81% after the summer's dip. This month notably contrasts with August, where humidity plummeted to its lowest point of the year at 77%. As the region transitions into autumn, we observe the return of moisture, reminiscent of the more humid winter months that follow. Throughout the year, humidity remains relatively high, with early months like January and February peaking at an impressive 91%. September's figures indicate a gentle shift, suggesting the cooling air and increasing precipitation typical of the approaching fall months, setting the stage for the cozy charm that envelops the Swiss Alps as the seasons change.
As September arrives in Chateau-d'Oex, Switzerland, the UV Index begins to decline from the peak summer levels, reflecting a shift in seasonal sun intensity. With a UV Index of 7, categorized as high, residents and visitors should remain mindful of sun exposure, particularly as the burn time is approximately 25 minutes. This marks a noticeable decrease from the soaring 10 in July and August, where very high levels demanded extra caution. As autumn approaches, the trend indicates a gradual easing of UV intensity, paving the way for a more moderate range in the coming months. For a closer look at the UV trends and exposure recommendations, be sure to check the detailed information available at Chateau-d'Oex UV Index.
UV Risk Categories
September in Chateau-d'Oex, Switzerland, serves as a delightful transition from the sun-drenched summer months to the crispness of autumn. With 325 hours of sunlight, it maintains a lovely brightness that extends the warm, inviting atmosphere of the preceding months, which peak with 416 hours in July. This is a slight decline from the vibrancy of July and August, but it's a testament to the region’s enduring charm as days gradually shorten. Comparing this to January's mere 172 hours, August’s 385 hours, and even October's 288 hours, September offers a generous amount of sunshine, making it one of the last golden months to enjoy the splendor of the Alpine scenery before the winter chill sets in.
As September unfolds in Chateau-d'Oex, Switzerland, the likelihood of sunny weather shows a modest increase, with a 35% chance of sunshine. This marks a slight improvement from the summer months, where the sun graces the region about a third of the time. Notably, September's sunshine probability lags behind the more vibrant spring months of April (45%) and October (44%), but still outshines the earlier summer weeks of June, July, and August. As the autumn chill begins to set in, this transitional month offers a pleasant mix of sunny intervals, allowing visitors to savor the stunning alpine landscapes before winter's embrace.
In Chateau-d'Oex, Switzerland, September marks a transition as daylight begins to wane, offering a 12-hour stretch of sunlight. Following the summer’s peak in June, July, and August—where days bask in 15 hours of daylight—the approach of autumn brings noticeable change. As the year progresses from the warm summer months, which showcase the longest days, September serves as a gentle reminder of winter's impending arrival, tapering off into 10 hours of sunlight by October. This gradual decline underscores the region's natural rhythm, inviting residents and visitors alike to savor the last warm rays of the season before cozying up for the colder months ahead.
As autumn sets in, the September winds in Château-d'Oex exhibit a gentle breeze with an average speed of 1.2 m/s (3 mph), signaling a slowdown compared to the bustling summer months. This slight dip is part of a broader pattern observed throughout the year, where wind speeds generally fluctuate subtly but remain consistently mild, hovering around 1.5 m/s for most months. Notably, September's winds offer a serene prelude to the fall season, inviting visitors to enjoy the breathtaking landscapes without the interruption of strong gusts. As the temperature begins to drop, the tranquil winds create a perfect atmosphere for reflecting on the beauty of nature in this picturesque Swiss village.
Weather in Chateau-d'Oex varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Chateau-d'Oex, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit stark contrasts in weather conditions. In September, temperatures range from a chilly -3°C (27°F) to a pleasant maximum of 24°C (75°F), with an average of 11°C (52°F). The month experiences 117 mm (4.6 in) of precipitation over 15 days and a humidity level of 81%, making it feel relatively comfortable despite frequent rainfall. In contrast, January is significantly colder, with temperatures plummeting to a minimum of -24°C (-10°F) and a maximum of 8°C (47°F), leading to an average of -5°C (24°F). This month sees an increase in precipitation to 150 mm (5.9 in) over 12 days and a higher humidity of 91%, contributing to the crisp and often harsh winter atmosphere. For further details on January's weather, check out Chateau-d'Oex weather in January.
September and February present stark contrasts in weather conditions. In September, the minimum temperature is a chilly -3°C (27°F), but the average rises to a mild 11°C (52°F) and peaks at a comfortable 24°C (75°F). This month sees about 117 mm (4.6 in) of precipitation over 15 days, with humidity levels at 81%. On the other hand, February brings much colder temperatures, with a minimum of -19°C (-2°F) and an average of -1°C (30°F), only reaching a maximum of 13°C (56°F). Despite having the same precipitation total of 117 mm (4.6 in), February has fewer rainy days, totaling just 11, and a higher humidity level of 89%. For a more detailed look at February conditions, check out Chateau-d'Oex weather in February.
When comparing the weather in September and March, it’s evident that March is significantly colder than September. In September, temperatures range from a minimum of -3°C (27°F) to a pleasant maximum of 24°C (75°F), with an average of 11°C (52°F). In contrast, March experiences harsher conditions, with temperatures dipping as low as -21°C (-5°F) and only reaching a maximum of 16°C (62°F), averaging around 1°C (34°F). Precipitation levels are slightly higher in March at 149 mm (5.9 in) over 16 days, compared to September's 117 mm (4.6 in) over 15 days. Additionally, March has higher humidity at 87% compared to September's 81%. For more detailed insights, check Chateau-d'Oex weather in March.
When comparing the weather between September and April, we see notable differences in temperature and precipitation. September typically enjoys milder temperatures, with an average of 11°C (52°F) and highs reaching up to 24°C (75°F), while April has a cooler average of 5°C (41°F), with maximums only reaching 20°C (69°F). Humidity levels are quite similar, with September at 81% and April slightly higher at 84%. Precipitation in September is also more abundant, totaling 117 mm (4.6 in) over 15 days compared to April's 89 mm (3.5 in) over 12 days. For a closer look at April's weather in the region, you can visit Chateau-d'Oex weather in April.
When comparing the weather in September and May, we see some notable differences. September typically experiences a milder temperature range, with a minimum of -3°C (27°F), an average of 11°C (52°F), and a maximum reaching 24°C (75°F). In contrast, May can be slightly cooler overall, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 26°C (80°F), creating a more varied climate. Additionally, September records a significant amount of rainfall, averaging 117 mm (4.6 in) over 15 days, while May sees even higher precipitation levels of 205 mm (8.1 in) over 21 days. Both months maintain high humidity levels, with September at 81% and May at 80%. For a closer look at the specific weather conditions in May, you can visit Chateau-d'Oex weather in May.
September and June present distinct weather patterns, reflecting the transition from summer to autumn. In September, temperatures range from a chilly -3°C (27°F) at night to a pleasant 24°C (75°F) during the day, with an average of 11°C (52°F). Meanwhile, June offers warmer conditions, with temperatures starting at 0°C (33°F) and reaching up to 31°C (87°F), averaging 14°C (57°F). Precipitation is more frequent in June, totaling 181 mm (7.1 in) over 19 days compared to September's 117 mm (4.6 in) over 15 days, while both months experience high humidity levels, at 82% for June and 81% for September. For more details on the June weather, you can refer to Chateau-d'Oex weather in June.
In comparing the weather between September and July, we see notable differences in temperature and precipitation. September experiences cooler temperatures with a minimum of -3°C (27°F) and an average around 11°C (52°F), peaking at 24°C (75°F). In contrast, July boasts warmer conditions, featuring a minimum of 3°C (38°F) and an average of 15°C (60°F), reaching up to 30°C (86°F). Additionally, July tends to be wetter, with precipitation measuring 200 mm (7.9 in) over 18 days, compared to September's 117 mm (4.6 in) and 15 rainy days. Humidity levels remain fairly similar, with September at 81% and July at 82%. For a deeper look at July's climate, visit Chateau-d'Oex weather in July.
In comparing the weather of September to August, September experiences cooler temperatures, with a minimum of -3°C (27°F) and an average of 11°C (52°F), while August enjoys milder conditions, starting at a minimum of 4°C (39°F) and averaging 15°C (59°F). Maximum temperatures also differ, with September reaching up to 24°C (75°F) compared to August's higher peak of 28°C (82°F). Precipitation is more prominent in August, totaling 180 mm (7.1 in) over 17 days, compared to September's 117 mm (4.6 in) across 15 days, although September has slightly higher humidity at 81% versus August's 77%. For a more detailed look at August weather in the region, visit Chateau-d'Oex weather in August.
September and October exhibit notable differences in weather patterns. September typically sees temperatures ranging from a minimum of -3°C (27°F) to a maximum of 24°C (75°F), with an average of 11°C (52°F). The month experiences substantial precipitation, totaling 117 mm (4.6 in) over 15 days, and a humidity level of 81%. In contrast, October brings slightly cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 20°C (69°F), averaging 7°C (44°F). Additionally, October has a marginally higher precipitation of 135 mm (5.3 in) spread over 13 days, along with increased humidity at 89%. For detailed insights, you can explore Chateau-d'Oex weather in October.
September and November present distinct contrasts in weather conditions. In September, temperatures range from a chilly minimum of -3°C (27°F) to a comfortable maximum of 24°C (75°F), with an average temperature of 11°C (52°F). The month experiences 117 mm (4.6 in) of precipitation over about 15 days, accompanied by a humidity level of 81%. In contrast, November brings colder temperatures, with a minimum of -12°C (10°F) and an average of just 1°C (34°F), peaking at 17°C (63°F). This month sees slightly less precipitation at 109 mm (4.3 in) over 12 days, while humidity rises to 89%. For more specific details on conditions during November, you can visit Chateau-d'Oex weather in November.
In September, the weather in Chateau-d'Oex is relatively mild, 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). The month typically sees about 117 mm (4.6 in) of precipitation over approximately 15 days, accompanied by a humidity level of 81%. In contrast, December brings significantly colder temperatures, with a minimum of -23°C (-10°F) and a maximum of just 8°C (47°F), resulting in an average of -3°C (26°F). This month experiences heavier precipitation of 226 mm (8.9 in) spread across 18 days, along with a higher humidity of 91%. For more detailed information, you can check the weather specifics here: Chateau-d'Oex weather in December.
As September rolls in, Chateau-d'Oex experiences a unique transition in weather that sets it apart from the warmer summer months. While daytime temperatures still allow for pleasant outings, the nights bring a noticeable chill, hinting at the approaching autumn. With an average humidity of 81% and frequent rainfall—experienced on about half of the month’s days—September's weather invites visitors to embrace a cozy ambiance. This blend of warm days and cool nights, coupled with elevated precipitation, creates a refreshing atmosphere ideal for those looking to enjoy the beauty of nature before winter settles in. For more details, check the full Chateau-d'Oex Climate information.