September Weather in Zuoz, Switzerland

Last updated: August 27, 2025

Experience the breathtaking September weather in Zuoz, Switzerland, where temperatures range from a brisk maximum of 19°C (66°F) to a chilly minimum of -13°C (9°F). The month averages a cool 7°C (44°F), perfect for those who enjoy the crispness of early autumn. With 109 mm (4.3 in) of precipitation spread across 14 days, prepare for a refreshing, albeit damp, landscape. The humidity level of 83% adds a touch of earthiness to the air, making this enchanting alpine village an inviting destination for nature enthusiasts and those seeking tranquility amidst the seasonal change.

September Temperature in Zuoz

As September unfolds in Zuoz, Switzerland, the landscape begins its gentle transition from the warmth of summer to the crisp embrace of autumn. The temperatures typically range from a chilly -13°C (9°F) at night to a comfortable 19°C (66°F) during the day, yielding an average of 7°C (44°F). This shift in temperature reflects a significant cooling trend compared to the summer months, inviting locals and visitors alike to enjoy the vibrant hues of fall foliage. While the days remain pleasantly mild, the nights signal the encroaching winter, offering a striking contrast to the previous warmth of the season. With this unique climate, September in Zuoz presents a perfect opportunity for outdoor exploration and experiencing the breathtaking beauty of the Swiss Alps.

September Weather in Zuoz: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Zuoz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Zuoz, 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).
JanFebMarAprMayJunJulAugSepOctNovDec121823313949525144362516
Data source: Temperature data for Zuoz generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Zuoz

In September, Zuoz experiences a transition from the summer deluge to the crispness of autumn, marked by a precipitation total of 109 mm (4.3 in) over approximately 14 rainy days. This amount reflects a significant decline from the peak of 160 mm in August, yet it remains higher than earlier months like January through April. The moderate rainfall throughout September, particularly when compared to the preceding months, indicates a gradual winding down of the intense summer storms, while still contributing substantially to the region's vibrant fall landscape. As the month progresses, this balanced precipitation helps nurture the flora, preparing for the cooler months ahead.

September Precipitation Trends in Zuoz

The chart displays monthly precipitation patterns in Zuoz, 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 Zuoz, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec67527782133120133160109127123116
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Zuoz

In September, humidity in Zuoz, Switzerland, settles at 83%, marking a slight uptick from the summer's average of 80% in August. The transition into autumn often brings a gentle increase in moisture levels, as the landscape prepares for the cooler months ahead. This trend follows a consistent pattern observed earlier in the year, where humidity gradually declines from its peak in January (92%) to its lowest point in May (80%). However, as October approaches, humidity soars once more, underscoring the unique climatological rhythm that characterizes this charming Swiss village. Overall, September’s humidity reflects a balance, maintaining comfort while hinting at the seasonal shifts to come.

September Average Humidity in Zuoz

This chart illustrates the average monthly humidity levels in Zuoz, 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 Zuoz is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Zuoz

As the summer winds down in September, Zuoz experiences a UV Index of 8, indicating a very high level of sun exposure that necessitates caution. This marks a noticeable decline from the peak 11 in both June and July, yet it remains significantly higher than the moderate levels felt during the winter months. With a burn time of just 15 minutes, it's essential for residents and visitors to remain vigilant, utilizing sunblock and protective clothing. This trend showcases a seasonal shift, highlighting the need for increased sun safety as the days begin to shorten. For more information, check out the detailed Zuoz UV Index.

Maximum UV Index Levels in Zuoz for September

The chart shows the monthly maximum UV Index (UVI) for Zuoz 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 Zuoz typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347810111198632
Data source: Zuoz 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 Zuoz

In Zuoz, Switzerland, September marks a delightful transition as summer winds down, bringing a generous 315 hours of sunshine. This month reflects a pattern established over the warmer months, peaking in July with 414 hours before gently tapering off into the crisp autumn days. Compared to its summer predecessors, September enjoys a comfortable balance of sunny spells and cooler temperatures, inviting outdoor exploration and stunning scenery. As the days grow shorter, the lingering warmth of late summer melds beautifully with the changing hues of nature, creating a serene atmosphere that heralds the approach of fall.

Monthly Sunshine Duration in Zuoz: September Highlighted

The September sunshine duration represents the total number of hours Zuoz 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h241h315h342h363h389h414h371h315h282h213h202h
Data source: Zuoz September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Zuoz During September

September in Zuoz, Switzerland, presents a 29% chance of enjoying sunny weather, a modest figure that reflects a general trend of decreasing sunshine as the summer months wane. While the peak summer months of June and July hover around 31-33%, the sunshine potential begins to dip, paralleling the transition into autumn. Interestingly, this September likelihood is slightly lower than the earlier months of the year, such as February and March, which boast figures over 40%, but is still more promising than the later months like November. So, while sunny days aren't guaranteed in September, the warmth of late summer lingers, offering a chance to soak in the picturesque alpine scenery.

Percentage of Sunny Days in September in Zuoz

The chart illustrates the percentage of sunny days in Zuoz 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 Zuoz experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%40%43%40%31%33%31%36%29%38%27%35%
Data source: Zuoz September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Zuoz in September

As September arrives in Zuoz, Switzerland, the vibrant summer days gradually give way to a shift in daylight, offering approximately 12 hours of sunlight. This marks a gentle decline from the lengthy 15 hours enjoyed in the peak months of May through July. While the days are noticeably shorter compared to the sun-drenched heights of summer, they still outshine the winter months ahead, where daylight will dwindle to as little as 8 hours in December. The transitional nature of September serves as a beautiful reminder of the impending autumn, blending the lingering warmth of summer with the crisp anticipation of fall.

Average Daylight Hours in Zuoz for September

The chart illustrates the variation in daylight duration in Zuoz throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 2m10h 19m11h 56m13h 35m15h 1m15h 44m15h 21m14h 5m12h 30m10h 51m9h 23m8h 37m
Data source: Zuoz daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Zuoz

As summer gently fades into autumn, the September wind in Zuoz, Switzerland, softens to an average speed of 1.2 m/s (3 mph), making it one of the calmest months of the year. This slight decrease reflects a trend where the winds tend to mellow after the lively summer months, which consistently featured average speeds of 1.7 m/s (4 mph). Following a peak in the warmer months, September invites a soothing atmosphere that embraces the tranquil beauty of the alpine landscape. The low winds signal a transition, hinting at the serene yet brisk conditions that autumn will soon bring, as the speeds gradually increase again by October.

Average September Wind Speed in Zuoz

The chart displays monthly wind speed patterns in Zuoz, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.21.51.51.71.71.71.51.2 m/s1.51.41.7
Data source: Zuoz September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Zuoz Compares to Other Months

Weather in Zuoz varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Zuoz, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present starkly contrasting weather conditions. In September, temperatures range from a chilly -13°C (9°F) at their lowest to a pleasant 19°C (66°F) at their peak, with an average temperature of 7°C (44°F). The month sees moderate precipitation of 109 mm (4.3 in) across 14 days, accompanied by a relatively high humidity of 83%. In contrast, January is significantly colder, with temperatures dropping to a minimum of -29°C (-20°F) and only reaching a maximum of 2°C (35°F), giving an average of -11°C (12°F). Precipitation decreases to 67 mm (2.6 in) over 9 days, while humidity levels rise slightly to 92%. For a more detailed look at January weather in this region, check out Zuoz weather in January.

September and February present distinct contrasts in weather. In September, temperatures range from a chilly -13°C (9°F) at their lowest to a comfortable 19°C (66°F) during the day, with an average temperature of 7°C (44°F). The month also sees substantial rainfall, totaling 109 mm (4.3 in) over 14 days, and humidity hovers around 83%. In stark contrast, February features much colder conditions, with temperatures dipping to as low as -30°C (-21°F) and peaking at a mere 5°C (42°F), averaging -8°C (18°F). Precipitation during this month is significantly lower at 52 mm (2.1 in) across 10 days, while humidity rises slightly to 89%. For more detailed insights, check out Zuoz weather in February.

When comparing the weather between September and March, significant differences emerge. September generally has a milder climate, with average temperatures around 7°C (44°F) and a maximum reaching up to 19°C (66°F). In contrast, March experiences chillier conditions, with an average temperature of -5°C (23°F) and maximums only hitting 11°C (51°F). Precipitation is also noteworthy; September sees 109 mm (4.3 in) over about 14 days, while March has less precipitation at 77 mm (3.0 in) over 12 days. Moreover, the humidity remains relatively high in both months, with September at 83% and March slightly higher at 87%. For a more detailed look, you can explore Zuoz weather in March.

When comparing the weather in September and April, notable differences emerge. September generally offers milder conditions, with average temperatures ranging from -13°C (9°F) to a maximum of 19°C (66°F), while April boasts even colder temperatures, with a range from -16°C (4°F) to a maximum of 12°C (54°F). Both months experience considerable precipitation, but September sees slightly more at 109 mm (4.3 in) over 14 days compared to April's 82 mm (3.2 in) across 11 days. The humidity in both months is similar, with September at 83% and April at 84%. For more detailed insights into April weather, you can refer to Zuoz weather in April.

In comparing the weather between September and May, September typically boasts a milder average temperature of 7°C (44°F), with a maximum of 19°C (66°F), whereas May presents slightly cooler conditions, with an average of 4°C (39°F) and a maximum of 18°C (65°F). Precipitation levels are also noteworthy; September sees 109 mm (4.3 in) over about 14 days, while May has a higher total of 133 mm (5.2 in) spread across 21 days. Humidity levels are relatively similar, with September at 83% and May slightly lower at 80%. For more detailed information on May weather, you can check Zuoz weather in May.

In September, the weather showcases cooler temperatures compared to June, with a minimum of -13°C (9°F) and an average of 7°C (44°F), peaking at a comfortable 19°C (66°F). While both months experience substantial precipitation, September records 109 mm (4.3 in) over 14 days, slightly less than June's 120 mm (4.7 in) across 18 days, suggesting slightly wetter conditions in early summer. Additionally, September boasts a higher humidity level of 83%, compared to June's 82%. For more detailed insights on the weather during June, you can visit Zuoz weather in June.

In comparing the weather of September and July, notable differences arise in temperature and precipitation. September experiences cooler temperatures, with a minimum of -13°C (9°F), an average of 7°C (44°F), and a maximum of 19°C (66°F). In contrast, July is significantly warmer, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 24°C (75°F), accompanied by a higher average of 11°C (52°F). Precipitation levels are also noteworthy, with September registering 109 mm (4.3 in) over 14 days, while July sees slightly more precipitation at 133 mm (5.2 in) across 21 days. Both months share a high humidity level of 83%. For a more detailed overview of July's conditions, you can refer to Zuoz weather in July.

In comparing the weather of September and August, September tends to be cooler, with average temperatures ranging from a minimum of -13°C (9°F) to a maximum of 19°C (66°F), while August's temperatures are slightly milder, with a minimum of 0°C (33°F) and a maximum of 22°C (71°F). September also experiences more frequent precipitation days, totaling 14 days with 109 mm (4.3 in) of rainfall, compared to August, which has 19 days of rain and a significantly higher total of 160 mm (6.3 in). Humidity levels remain relatively high in both months, at 83% in September and 80% in August, contributing to a damp atmosphere. For a deeper insight into the conditions during August, you can visit Zuoz weather in August.

In comparing the weather of September and October, we observe notable changes in temperature and precipitation patterns. September enjoys a relatively milder average temperature of 7°C (44°F), while October sees a significant drop to an average of 2°C (37°F). While both months experience cold minimums, September's maximum temperature reaches 19°C (66°F), which is higher than October's peak of 14°C (58°F). In terms of precipitation, October is slightly wetter, with 126 mm (5.0 in) recorded over 10 days, compared to September's 109 mm (4.3 in) over 14 days. Humidity levels also rise in October to 90%, up from September's 83%. For a more detailed look at the weather specifics, you can visit Zuoz weather in October.

September and November exhibit notable differences in weather conditions. In September, temperatures range from a minimum of -13°C (9°F) to a maximum of 19°C (66°F), with an average of 7°C (44°F). This month experiences 109 mm (4.3 in) of precipitation over 14 days and has a humidity level of 83%. In contrast, November is significantly colder, with temperatures dipping to a minimum of -23°C (-9°F) and only reaching a maximum of 9°C (48°F), resulting in an average temperature of -4°C (25°F). November sees slightly higher precipitation at 123 mm (4.8 in) over 13 days, alongside a humidity level of 88%. For a more detailed overview of November weather, visit Zuoz weather in November.

In September, the weather in Zuoz is milder, with temperatures ranging from a chilly minimum of -13°C (9°F) to a pleasant maximum of 19°C (66°F), and an average temperature of 7°C (44°F). The month sees about 109 mm (4.3 in) of precipitation over 14 days, accompanied by a humidity level of 83%. In contrast, December brings significantly colder conditions, with temperatures dipping to a minimum of -26°C (-15°F) and an average temperature of -9°C (16°F), while the maximum reaches only 2°C (36°F). Although December experiences slightly more precipitation at 116 mm (4.6 in) over the same number of rainy days, humidity levels increase to 90%. For more insights into December's weather, you can check out Zuoz weather in December.

Compare Zuoz's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Zuoz

September in Zuoz marks a notable transition from the warmth of summer to the chill of autumn. With its pleasant average temperatures, this month offers a fresh and invigorating atmosphere, contrasted by the typical late-summer humidity which lingers at 83%. Rainfall is common, with approximately half the month experiencing precipitation, making it one of the wetter times of year. As the days shorten and temperatures cool, September serves as a beautiful prelude to the winter months, showcasing the stunning landscapes of the Graubünden region. For a deeper insight into what to expect, check out Zuoz Climate.