September Weather in Saas-Fee, Switzerland

Last updated: August 27, 2025

In Saas-Fee, Switzerland, September unveils a captivating blend of crisp mountain air and vibrant autumn hues. With maximum temperatures reaching 18°C (65°F) and an average of 8°C (46°F), the days are pleasantly cool, while nights can dip to a chilly -5°C (24°F). The month brings 164 mm (6.5 in) of precipitation over approximately 20 days, making it a wet yet refreshing time to explore the stunning landscapes. High humidity levels at 74% add to the cozy atmosphere, perfect for enjoying the beautiful fall foliage. Whether trekking through charming trails or relaxing in local cafes, September in Saas-Fee is a delightful experience for visitors seeking both adventure and tranquility.

September Temperature in Saas-Fee

In September, Saas-Fee, Switzerland begins to transition from the warmer summer months to the crispness of autumn. The temperatures show a notable drop, with minimums reaching -5°C (24°F) and averages around 8°C (46°F). Daytime highs can still be pleasantly moderate, peaking at 18°C (65°F), inviting visitors to enjoy the stunning alpine scenery before winter sets in. While the chill is palpable compared to the summer's balmy temperatures, September offers a perfect blend of a cool mountain breeze and the lingering warmth of early fall, making it an ideal time for outdoor adventures in this picturesque Swiss village.

September Weather in Saas-Fee: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saas-Fee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saas-Fee, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec162125323950535246372617
Data source: Temperature data for Saas-Fee generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Saas-Fee

In September, Saas-Fee, Switzerland experiences a significant transition in its weather patterns, marked by a precipitation amount of 164 mm (6.5 in) over approximately 20 days of rain. This month typically acts as a bridge between the lush summer months and the crisp fall season, as seen with the precipitation peaking in both June and August at 281 mm (11.1 in), and then tapering off into October’s 267 mm (10.5 in). The relatively high number of precipitation days in September indicates that while the weather is still humid, it begins to shift towards a more autumnal feel, preparing the landscape for the stunning colors ahead. This gradual decline from the summer's wetter climate hints at the changing seasons, capturing the essence of Saas-Fee's enchanting alpine environment.

September Precipitation Trends in Saas-Fee

The chart displays monthly precipitation patterns in Saas-Fee, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Saas-Fee, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec11165120175221281253281164267209137
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Saas-Fee

As September arrives in Saas-Fee, Switzerland, the humidity settles at a refreshing 74%. This marks an increase from the drier summer months, where humidity levels dipped to as low as 64% in August. The transition into autumn is evident, as the air becomes crisper and more refreshing, a prelude to the heavier, moisture-laden months that follow. Notably, September's humidity serves as a gentle reminder of the humid conditions of winter, which will soon reassert themselves, with levels climbing back to 87% by October. The gradual rise in humidity underscores a shift from the warmth of summer to the cooler embrace of fall, illustrating the region's dynamic and inviting climatic shifts.

September Average Humidity in Saas-Fee

This chart illustrates the average monthly humidity levels in Saas-Fee, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Saas-Fee is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%81%76%77%74%71%67%64%74%87%88%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saas-Fee

As September arrives in Saas-Fee, Switzerland, the UV Index begins to decline from the summer's peak, settling at 7, which falls into the high exposure category. This signals a shift in sun intensity, with a recommended burn time of 25 minutes. Throughout the summer months, particularly in June and July, residents and visitors experienced UV Index levels of 10, classified as very high, necessitating heightened sun protection measures. As the days grow shorter and the air becomes crisp, defensive measures against sun exposure remain important, especially for those engaging in outdoor activities. For more detailed insights into UV levels throughout the year, visit Saas-Fee UV Index.

Maximum UV Index Levels in Saas-Fee for September

The chart shows the monthly maximum UV Index (UVI) for Saas-Fee in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Saas-Fee typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34789101097532
Data source: Saas-Fee September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Saas-Fee

Saas-Fee basks in September's gentle warmth, wrapping up summer in a glorious display of sunshine, amassing 333 hours of brilliant daylight. This month offers a delightful contrast to the peak of summer in July, which boasts the most hours at 426, and gradually declines as autumn sets in. While September sees a dip compared to August's impressive 391 hours, it still retains a vibrant glow, standing out as one of the months that bridges the golden days of summer with the crispness of fall. As daylight diminishes toward the year's end, notably in October and November, September remains a cherished time for exploration and enjoyment in this picturesque Swiss paradise.

Monthly Sunshine Duration in Saas-Fee: September Highlighted

The September sunshine duration represents the total number of hours Saas-Fee experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec189h245h317h354h381h406h426h391h333h293h232h219h
Data source: Saas-Fee September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saas-Fee During September

September in Saas-Fee, Switzerland, experiences a 22% chance of sunny weather, which reflects a decline from the more optimistic summer months. Following the brighter August, which boasts a 43% likelihood of sun, September ushers in a shift towards cloudier days as the region transitions into autumn. Interestingly, September's sunshine probability aligns closely with January and June, suggesting a tendency for cooler, less predictable weather. Although hiking and outdoor activities may be less predictable during this month, the stunning alpine scenery remains breathtaking, making every glimpse of sunlight all the more precious.

Percentage of Sunny Days in September in Saas-Fee

The chart illustrates the percentage of sunny days in Saas-Fee throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Saas-Fee experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%38%49%42%32%22%30%43%22%45%34%42%
Data source: Saas-Fee September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saas-Fee in September

As summer gracefully transitions into autumn, September in Saas-Fee, Switzerland, offers a delightful balance with approximately 12 hours of daylight. This marks a gentle decline from the peak 15 hours enjoyed in June and July, as the region begins to prepare for shorter days ahead. The month serves as a reminder of the vibrant summer days, while still basking in ample sunlight, with daylight gradually tapering off from the 14 hours in August. As nature shifts, the blend of bright skies and cooler temperatures creates an enchanting atmosphere for outdoor adventures and stunning alpine vistas, making September a beautifully transitional time in this picturesque Swiss village.

Average Daylight Hours in Saas-Fee for September

The chart illustrates the variation in daylight duration in Saas-Fee throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 5m10h 20m11h 56m13h 34m14h 58m15h 40m15h 18m14h 3m12h 29m10h 52m9h 26m8h 41m
Data source: Saas-Fee daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Saas-Fee

As September arrives in Saas-Fee, Switzerland, the gentle breath of the wind becomes noticeable, with an average speed of only 1.1 m/s (3 mph). This marks a continuation of the trend observed throughout the summer months, where winds have remained quite calm, typically hovering around 1.2 m/s (3 mph) from June to August. Interestingly, as the seasons transition, October sees a slight uptick to 1.3 m/s (3 mph), suggesting a subtle increase in activity as autumn approaches. Overall, September encapsulates the essence of late summer tranquility, heralding a shift in the air as the village prepares for the cooler months ahead.

Average September Wind Speed in Saas-Fee

The chart displays monthly wind speed patterns in Saas-Fee, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.41.41.31.51.21.21.21.1 m/s1.31.31.8
Data source: Saas-Fee September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Saas-Fee Compares to Other Months

Weather in Saas-Fee varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Saas-Fee, 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 minimum of -5°C (24°F) to a pleasant maximum of 18°C (65°F), averaging at 8°C (46°F). The month is characterized by moderate rainfall, with 164 mm (6.5 in) spread over 20 days, and humidity levels hover around 74%. In contrast, January is significantly colder, with temperatures dipping from a minimum of -24°C (-11°F) to a maximum of only 3°C (37°F), averaging -9°C (16°F). The precipitation in January is lower at 111 mm (4.4 in), occurring over just 10 days, but the humidity is notably higher at 88%. For a more detailed overview, check Saas-Fee weather in January.

September and February present starkly contrasting weather experiences. In September, temperatures range from a chilly -5°C (24°F) at night to a pleasant maximum of 18°C (65°F) during the day, with an average of 8°C (46°F). This month sees significant precipitation, totaling 164 mm (6.5 in) over about 20 days, combined with a humidity level of 74%. In stark contrast, February is much colder, with temperatures dipping to a minimum of -23°C (-9°F) and averaging -6°C (21°F), climbing to a maximum of just 9°C (49°F). The precipitation lessens to 65 mm (2.6 in) across 12 days, while humidity rises slightly to 81%. For those interested in the specifics, you can explore more about the weather in Saas-Fee weather in February.

September and March present stark contrasts in weather. In September, temperatures range from a minimum of -5°C (24°F) to a comfortable maximum of 18°C (65°F), with an average of 8°C (46°F). The month experiences considerable rainfall, with precipitation totaling 164 mm (6.5 in) over 20 days, and a humidity level of 74%. In contrast, March sees much colder temperatures, with a minimum of -26°C (-15°F) and a maximum of only 10°C (50°F), averaging -4°C (25°F). Although precipitation decreases to 120 mm (4.7 in) over 14 days, humidity rises slightly to 76%. For a more detailed look at March weather, visit Saas-Fee weather in March.

When comparing the weather in September and April, we see notable differences in temperature and precipitation patterns. September boasts a milder average temperature of 8°C (46°F) with highs reaching 18°C (65°F), while April has a chillier average of 0°C (32°F) and maximum temperatures only up to 12°C (54°F). Precipitation is relatively high in both months, with September receiving 164 mm (6.5 in) over 20 days and April slightly wetter at 175 mm (6.9 in) but over fewer days, just 12. Additionally, April tends to be more humid, with levels at 77%, compared to September's 74%. For more details on April weather specifically in Saas-Fee, you can visit Saas-Fee weather in April.

When comparing the weather in September and May, both months exhibit chilly temperatures and high humidity, yet they differ in various aspects. In September, temperatures range from a minimum of -5°C (24°F) to a maximum of 18°C (65°F), with an average of 8°C (46°F). In contrast, May experiences slightly cooler temperatures, with a minimum of -11°C (13°F) and a maximum of 17°C (62°F), averaging around 4°C (40°F). Precipitation is notably higher in May, totaling 221 mm (8.7 in) over 21 days, compared to September's 164 mm (6.5 in) across 20 days. Despite the similar humidity levels of 74% in both months, it's clear that May tends to be wetter and slightly cooler than September. For more details, you can check the Saas-Fee weather in May.

In comparing the weather of September and June, we can see distinct differences in temperature and precipitation. September experiences a temperature range from a chilly -5°C (24°F) to a mild maximum of 18°C (65°F), with an average of 8°C (46°F). In contrast, June offers slightly warmer temperatures, with a minimum of -3°C (27°F) and a high of 25°C (77°F), averaging around 10°C (50°F). Precipitation levels also diverge, as September receives 164 mm (6.5 in) over 20 days, while June has a significant increase, totaling 281 mm (11.1 in) across 22 days. Notably, the humidity is similar, with September at 74% and June slightly lower at 71%. For more specific details on June weather, you can refer to Saas-Fee weather in June.

Comparing the weather in September and July reveals notable differences in temperature and precipitation patterns. September temperatures range from a chilly minimum of -5°C (24°F) to an average of 8°C (46°F) and a maximum of 18°C (65°F), while July presents a warmer climate with minimums of 0°C (32°F), average temperatures of 12°C (53°F), and peaks at 21°C (69°F). In terms of precipitation, September experiences 164 mm (6.5 in) over 20 days, which is less than July's 253 mm (10.0 in) spread across 24 days. Additionally, humidity levels are higher in September at 74% compared to July’s 67%. For more information about July weather specifics, you can refer to Saas-Fee weather in July.

In comparing the weather of September and August, September tends to be cooler with minimum temperatures reaching as low as -5°C (24°F) and an average of 8°C (46°F), while August enjoys milder conditions with a minimum of 1°C (34°F) and an average of 11°C (52°F). The maximum temperatures also reflect this decline, with September peaking at 18°C (65°F) compared to August's warmer 22°C (72°F). Additionally, September experiences more frequent precipitation, totaling 164 mm (6.5 in) over 20 days, whereas August sees a higher precipitation amount of 281 mm (11.1 in) across 25 days. Humidity levels are higher in September at 74%, contrasted with August's 64%. For more detailed insights, you can visit Saas-Fee weather in August.

September typically experiences milder temperatures, with averages around 8°C (46°F) and a maximum of 18°C (65°F), while October sees a notable drop, averaging just 3°C (37°F) and peaking at 15°C (58°F). Additionally, October is marked by increased precipitation, totaling 267 mm (10.5 in) over 13 days compared to September's 164 mm (6.5 in) spread across 20 days. The humidity also rises during October, reaching 87% compared to September's 74%. For more detailed information about the climate, you can check Saas-Fee weather in October.

In September, the weather is relatively mild, with average temperatures ranging from a minimum of -5°C (24°F) to a maximum of 18°C (65°F), making it a good time for outdoor activities. However, it does see significant precipitation, with 164 mm (6.5 in) falling over approximately 20 days, coupled with a humidity level of 74%. In contrast, November brings much colder temperatures, with an average of -3°C (26°F) and daily highs reaching only up to 10°C (50°F). This month is also wetter, receiving 209 mm (8.2 in) of precipitation over 16 days and experiencing higher humidity at 88%. For more detailed weather insights, you can visit Saas-Fee weather in November.

September and December present markedly different weather conditions. In September, temperatures range from a minimum of -5°C (24°F) to a maximum of 18°C (65°F), with an average of 8°C (46°F). The month experiences a considerable amount of precipitation, totaling 164 mm (6.5 in) over 20 days, along with a relative humidity of 74%. In contrast, December sees much colder temperatures, with lows plunging to -23°C (-9°F) and highs only reaching 3°C (38°F), resulting in an average temperature of -8°C (18°F). While December has slightly less total precipitation at 137 mm (5.4 in) across 15 days, it comes with a higher humidity of 85%. For more detailed information, visit Saas-Fee weather in December.

Compare Saas-Fee's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Saas-Fee

As summer transitions into fall, September in Saas-Fee presents a unique blend of cool temperatures and increased precipitation, setting it apart from the warmer months. With an average temperature of 8°C (46°F) and frequent rainfall, this month often feels brisk and refreshing, perfect for those who enjoy the crisp air and stunning autumn foliage. While the humidity hovers around 74%, it contributes to the picturesque scenery that characterizes this period, making it a fantastic time for hiking and exploring the enchanting landscapes of Saas-Fee. For a more comprehensive understanding of the seasonal shifts, explore the detailed insights on Saas-Fee Climate.