September Weather in Disentis, Switzerland

Last updated: August 27, 2025

In September, Disentis, Switzerland, offers a captivating blend of climates, marked by a maximum temperature of 20°C (69°F) and an average of 8°C (46°F). Visitors can expect crisp morning air, with lows dipping to a chilly -10°C (14°F). This month sees 164 mm (6.5 in) of precipitation spread over 15 days, creating a lush, serene landscape. With an average humidity level of 83%, the atmosphere is distinctly refreshing, making September an ideal time for both outdoor adventures and enjoying the stunning natural scenery of the Swiss Alps.

September Temperature in Disentis

September in Disentis, Switzerland, marks a transition into cooler autumn temperatures, with the mercury typically ranging from a chilly -10°C (14°F) at night to a mild 20°C (69°F) during the day. This month features an average temperature of 8°C (46°F), offering a striking contrast to the warmth of summer. As the days shorten and the crisp mountain air settles in, visitors can expect a refreshing atmosphere, perfect for outdoor adventures like hiking and scenic explorations. The early signs of fall can be felt, gently nudging the landscape towards the vibrant hues of autumn while allowing for a farewell to the warmth of the previous months.

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

The chart illustrates September temperature patterns in Disentis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Disentis, 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).
JanFebMarAprMayJunJulAugSepOctNovDec172226334051535246382720
Data source: Temperature data for Disentis 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 Disentis

In September, Disentis experiences a notable shift in its precipitation patterns, receiving 164 mm (6.5 in) of rainfall over an average of 15 days. This marks a decline from the summer peak in August, which recorded an impressive 269 mm (10.6 in), yet September still maintains a robust level of moisture. As the air grows cooler and the days shorten, the rainfall serves as a transition into the autumn months, where waterlogged landscapes hint at the coming winter. This blend of precipitation not only nurtures the lush alpine scenery but also lays the groundwork for transitional weather dynamics in the region.

September Precipitation Trends in Disentis

The chart displays monthly precipitation patterns in Disentis, 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 Disentis, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec13692126104154193207269164179117178
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Disentis

In September, Disentis experiences a humidity level of 83%, a slight uptick from the summer months. This increase is part of a broader trend as the region transitions from the warmer, drier days of August to the cooler, more humid embrace of October, which sees humidity levels rise significantly to 90%. Throughout the year, humidity in Disentis has generally seen a gradual decline from a peak of 92% in January to its low of 80% in May, but as autumn sets in, moisture returns, hinting at the approaching winter. This cyclical pattern marks a distinct shift in the climate, reminding us that while summer offers temporary respite, autumn brings forth a resurgence of humidity.

September Average Humidity in Disentis

This chart illustrates the average monthly humidity levels in Disentis, 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 Disentis 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 Disentis

As summer fades into September in Disentis, the UV Index begins to decline, transitioning from the intense highs of July and August to a more moderate level. With a UV Index of 7, categorized as high exposure, sun-seekers should be vigilant, as the burn time stretches to 25 minutes. This shift indicates a gradual retreat from the peak sun exposure months, yet it remains essential to protect your skin during outdoor activities. As autumn approaches, the UV levels will continue to drop, leading into the cooler months. For detailed information on UV trends, explore more at Disentis UV Index.

Maximum UV Index Levels in Disentis for September

The chart shows the monthly maximum UV Index (UVI) for Disentis 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 Disentis typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: Disentis 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 Disentis

Nestled in the picturesque landscape of Disentis, Switzerland, September shines as a vibrant transition from the sun-drenched summer months to the cooler autumn days. With 302 hours of sunlight, this month is still basking in the glow left by the warmth of July and August, which boast the highest sunshine totals of 405 and 366 hours, respectively. The steady decline begins in October with 269 hours, hinting at the impending winter chill. As daylight dims progressively through autumn and winter, September stands out with a generous share of sunshine, providing ample opportunity to enjoy the stunning mountain scenery and invigorating outdoor activities before the season shifts. This enchanting month serves as a gentle reminder of the summer's lingering warmth while ushering in the crisp freshness of fall.

Monthly Sunshine Duration in Disentis: September Highlighted

The September sunshine duration represents the total number of hours Disentis 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.
JanFebMarAprMayJunJulAugSepOctNovDec166h225h298h344h353h378h405h366h302h269h200h185h
Data source: Disentis September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Disentis During September

In September, Disentis, Switzerland, enjoys a relatively moderate chance of sunny weather, with the likelihood of clear skies hovering around 28%. While this marks a slight increase from the summer months of June and July, it still falls short of the sunnier stretch in early spring and autumn, particularly March and October, both offering a 40% chance of sun. This trend suggests that as summer fades, the region experiences a gradual shift in weather patterns, balancing crisp air with occasional sunny days. Visitors in September can expect a mix of lingering warmth and the enchanting onset of autumn colors, making it a unique time to explore the stunning landscapes of Disentis.

Percentage of Sunny Days in September in Disentis

The chart illustrates the percentage of sunny days in Disentis 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 Disentis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%38%40%38%27%27%24%27%28%39%31%38%
Data source: Disentis September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Disentis in September

As summer gives way to autumn in Disentis, Switzerland, September marks a transition in daylight duration. After basking in nearly 15 hours of daylight during the peak months of June and July, the days begin to shorten, offering 12 hours of sunlight this month. This gradual decline reflects a natural rhythm, as the days progressively shorten from the vibrant summer long into the crisp fall. Following September, daylight continues to diminish, dipping to 10 hours in October and further down to 8 hours by December, reminding us of nature's cyclical changes. The waning light of September serves as a gentle reminder to relish the lingering warmth before the chill of winter sets in.

Average Daylight Hours in Disentis for September

The chart illustrates the variation in daylight duration in Disentis throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 59m10h 18m11h 56m13h 36m15h 3m15h 47m15h 23m14h 7m12h 30m10h 50m9h 21m8h 35m
Data source: Disentis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Disentis

As autumn approaches in Disentis, Switzerland, September brings a gentle tapering of the winds, with an average speed of just 1.1 m/s (3 mph). This marks the lowest wind speed of the year, a subtle transition from the summer's southward breezes. The trend throughout the months reveals a gradual decline from the winter months, where January and February experience slightly higher winds, averaging 1.5 m/s and 1.6 m/s respectively. Spring and summer maintain a steady calm, hovering around 1.2 to 1.4 m/s, before the seasonal shift reignites breezy conditions in October, returning to 1.6 m/s. This serene September air invites tranquil walks and contemplative moments amidst the stunning alpine landscape, crafting a perfect backdrop for pre-winter introspection.

Average September Wind Speed in Disentis

The chart displays monthly wind speed patterns in Disentis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.61.31.31.41.31.21.21.1 m/s1.61.41.4
Data source: Disentis September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Disentis Compares to Other Months

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

September and January present starkly different weather conditions. In September, temperatures range from a chilly -10°C (14°F) at night to a comfortable 20°C (69°F) during the day, with an average of 8°C (46°F). The month experiences significant rainfall, totaling 164 mm (6.5 in) over 15 days, and humidity hovers at 83%. In contrast, January is much colder, with temperatures dipping between -24°C (-12°F) and a maximum of just 7°C (44°F), averaging -8°C (17°F). Although January sees less precipitation at 136 mm (5.4 in) over 12 days, the humidity is slightly higher at 92%. For more detailed insights into January weather conditions, refer to Disentis weather in January.

In September, the weather is significantly milder with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 20°C (69°F), averaging around 8°C (46°F). The month experiences considerable precipitation, totaling 164 mm (6.5 in) over 15 days, and has a humidity level of 83%. In contrast, February is much colder, with temperatures plummeting to a minimum of -25°C (-13°F) and averaging -6°C (22°F), peaking at just 8°C (46°F). It has less precipitation, measuring 92 mm (3.6 in) over 12 days, yet the humidity is slightly higher at 89%. For a closer look at February in Disentis, you can visit Disentis weather in February.

The weather in September is noticeably milder compared to March, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 20°C (69°F) and an average of 8°C (46°F). In contrast, March experiences colder temperatures, with a minimum of -27°C (-16°F) and a maximum of 12°C (55°F), averaging around -3°C (27°F). While September has higher precipitation totals at 164 mm (6.5 in) over 15 days, March sees slightly less precipitation at 126 mm (5.0 in) across 17 days. Additionally, humidity levels are slightly higher in March, sitting at 87%, compared to September's 83%. For more detailed information about March weather, you can visit Disentis weather in March.

September and April present quite contrasting weather patterns. In September, temperatures range from a chilly -10°C (14°F) at night to a pleasant max of 20°C (69°F) during the day, with an average temperature of 8°C (46°F). The month sees considerable precipitation of 164 mm (6.5 in) over approximately 15 days, with humidity at a moderate 83%. In contrast, April experiences colder nights, with temperatures dipping as low as -20°C (-4°F) and an average temperature of just 0°C (33°F). While precipitation is lower at 104 mm (4.1 in) over 13 days, humidity remains slightly higher at 84%. For a more detailed look at the weather in April, you can visit Disentis weather in April.

In comparing the weather conditions of September and May, we observe some notable similarities and differences. Both months experience a maximum temperature of around 20°C (68-69°F), but September's average is slightly warmer at 8°C (46°F) compared to May's 4°C (40°F). Interestingly, May has slightly lower minimum temperatures, with lows reaching down to -11°C (12°F) versus September's minimum of -10°C (14°F).

Precipitation levels are comparable, with September receiving 164 mm (6.5 in) over 15 days and May slightly less at 154 mm (6.1 in) over 20 days, indicating that May tends to be wetter despite its lower total precipitation amount. Humidity is slightly higher in September at 83%, compared to 80% in May. For those interested in more detailed weather patterns, you can explore Disentis weather in May.

In comparing the weather of September and June, we can see a noticeable difference in temperature and overall conditions. September features a wider temperature range, with minimums dipping to -10°C (14°F) and maximums reaching up to 20°C (69°F), resulting in an average of 8°C (46°F). The month is characterized by significant precipitation at 164 mm (6.5 in) over about 15 days, coupled with high humidity levels at 83%. In contrast, June presents relatively milder temperatures, with minimums around -3°C (27°F) and maximums peaking at 26°C (80°F), averaging 10°C (51°F). Although June has slightly more precipitation at 192 mm (7.6 in) spread over 20 days, it maintains a humidity level of 82%. For a closer look at the specifics of June weather, you can refer to Disentis weather in June.

September and July present contrasting weather patterns, albeit with similar humidity levels at 83%. July enjoys warmer temperatures, with a minimum of 1°C (35°F) and a maximum of 25°C (76°F), averaging around 12°C (53°F). In contrast, September experiences cooler temperatures, ranging from a minimum of -10°C (14°F) to a maximum of 20°C (69°F), with an average of 8°C (46°F). Precipitation is also notable in both months, with July receiving 207 mm (8.1 in) over 22 days, while September sees 164 mm (6.5 in) across 15 days. For more detailed information about July's weather, visit Disentis weather in July.

In comparing the weather of September and August, we notice several key differences. September experiences cooler temperatures, with a minimum of -10°C (14°F) and an average of 8°C (46°F), in stark contrast to August's milder temperatures that range from a minimum of 1°C (33°F) to an average of 11°C (53°F). However, August is wetter, receiving a total of 269 mm (10.6 in) of precipitation over 21 days, while September has 164 mm (6.5 in) of precipitation spread over 15 days. Humidity levels remain relatively high in both months, with September at 83% and August slightly lower at 80%. For a detailed look at August's weather patterns, you can check out Disentis weather in August.

In September, the weather displays a wide temperature range, with minimums hitting -10°C (14°F) and maximums reaching up to 20°C (69°F), resulting in an average temperature of 8°C (46°F). The month sees considerable precipitation, recording 164 mm (6.5 in) over 15 days, accompanied by a relatively high humidity of 83%. In contrast, October brings slightly cooler temperatures, with an average of 3°C (38°F) and a maximum of 16°C (61°F), while the minimum dips to -11°C (13°F). The month experiences even higher precipitation at 179 mm (7.0 in) across 14 days, and humidity rises to 90%. For more detailed insights on the October weather patterns, you can check Disentis weather in October.

September and November present distinct contrasts in weather conditions. In September, temperatures range from a chilly minimum of -10°C (14°F) to a comfortable maximum of 20°C (69°F), with an average of 8°C (46°F). The month experiences substantial precipitation of 164 mm (6.5 in) over 15 days, accompanied by a relative humidity of 83%. In contrast, November brings colder temperatures, with a minimum of -21°C (-5°F) and an average of -3°C (27°F), peaking at 11°C (53°F). While precipitation decreases to 117 mm (4.6 in) over the same number of days, humidity rises slightly to 88%. For those interested in more details, visit Disentis weather in November.

September and December present contrasting weather conditions, reflecting the transition from late summer to winter. In September, temperatures range from a brisk minimum of -10°C (14°F) to a pleasant maximum of 20°C (69°F), with an average of 8°C (46°F). The month sees significant precipitation of 164 mm (6.5 in) over 15 days, accompanied by a humidity level of 83%. In stark contrast, December is much colder, with temperatures plummeting to a minimum of -24°C (-10°F) and only reaching a maximum of 5°C (41°F), leading to an average of -7°C (20°F). The precipitation in December increases slightly to 178 mm (7.0 in), spread over 19 days, and humidity rises to 90%. For more detailed insights into what to expect in December, visit Disentis weather in December.

Compare Disentis's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Disentis

September in Disentis offers a unique transition into autumn, marked by cooler average temperatures that linger between the warm summer days and the chill of winter. With an average of 164 mm of precipitation over approximately 15 days, the chance of rain is significantly more pronounced compared to the preceding summer months. As the humidity levels hover around 83%, you can expect a crispness in the air that hints at the changing season. This month serves as a beautiful reminder of nature’s cycles, making it an ideal time for those seeking to enjoy the stunning landscapes while enveloped in the gentle embrace of early autumn. For more detailed insights into the climate, check out Disentis Climate.