Last updated: August 27, 2025
In September, Glarus, Switzerland, experiences a dynamic climate characterized by a maximum temperature reaching 23°C (73°F) and an average of 10°C (51°F), while minimum temperatures can dip to -4°C (26°F). This month is marked by a notable precipitation total of 191 mm (7.5 in) across 18 days, contributing to a relatively high humidity level of 83%. Visitors can expect a mix of cool and comfortable days, ideal for exploring the stunning landscapes that define this picturesque region.
In September, Glarus, Switzerland, begins to transition from the warmth of summer to the crispness of autumn. With minimum temperatures dipping to -4°C (26°F) and averages settling around 10°C (51°F), the month marks a notable shift in the climate. Daytime highs can still reach a pleasant 23°C (73°F), offering opportunities to savor the lingering warmth. This gradual cooling trend signifies the onset of fall, gently ushering in a more refreshing atmosphere after the summer's peak. As nature transforms, visitors to Glarus can expect a charming blend of bright, crisp days and cool evenings, perfect for outdoor explorations against a backdrop of stunning autumnal foliage.
In September, Glarus experiences a significant shift in precipitation patterns, with an average of 191 mm (7.5 in) of rain falling over 18 days. This marks a decrease from the wetter months of July and August, which see peaks of 264 mm (10.4 in) and 289 mm (11.4 in) respectively. However, September still stands out with a robust rainfall amount, contributing to an overall trend of heightened precipitation in the late summer to early autumn transition. As the landscape prepares for the cooler months ahead, the moderate rainfall continues to sustain the lush greenery of this picturesque Swiss region.
In Glarus, Switzerland, September marks a transition in humidity levels as summer gives way to autumn. The month sees an average humidity of 83%, which is slightly higher than the preceding months of July and August, both at 80%. This subtle increase reflects the changing season, with moisture levels gradually rising as cooler temperatures approach. A comparison with earlier months reveals a trend where humidity is consistently high in the winter, peaking at 92% in January, while warmer months exhibit lower readings. As September wraps up, Glarus prepares for the wetter months ahead, which typically see humidity climbing back up to 90% in both October and December.
As summer transitions into autumn, Glarus, Switzerland, experiences a notable decline in the UV Index during September, which sits at 6, categorizing it as high with a burn time of 25 minutes. This reduction follows the peak summer months where the UV Index reached as high as 10 in June and 9 in July. Notably, September still requires awareness given its substantial UV levels, although it marks the beginning of a gradual decrease leading into the cooler months. As the seasons shift, it’s essential to remain vigilant about sun exposure, especially with the main summer months behind us. For more insights on UV levels throughout the year, you can visit Glarus UV Index.
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September in Glarus, Switzerland, offers a delightful blend of lingering summer warmth and the crisp onset of autumn, with 314 hours of sunshine that beautifully complement the changing scenery. As the days grow shorter, the sunshine gradually tapers from the bustling summer months where July peaks at 410 hours down to 275 hours by October. This transition showcases a seasonal shift: after the sun-drenched May and June, which boast over 360 hours, September stands out as a bridge, illuminating the vibrant hues of fall and inviting outdoor adventurers to bask in the last golden days before winter sets in.
In Glarus, Switzerland, September boasts a 31% chance of sunny weather, marking a slight improvement compared to the preceding summer months. As the warm season fades, this month often welcomes a blend of enjoyable sunshine with the onset of early autumn. Interestingly, while May and August see lower sun probabilities at 25% and 24% respectively, September holds its ground as a reliable transition month with decent weather potential. Furthermore, this likelihood aligns closely with October’s 34%, showcasing a gradual return to sunnier autumn days. Overall, as the sunbeams begin to wane, September offers a pleasant reminder of summer's warmth, making it an appealing time for outdoor adventures in the picturesque landscapes of Glarus.
As September unfolds in Glarus, Switzerland, the length of daylight begins its gentle descent, offering approximately 12 hours of light as summer's warmth wanes. This shift follows the peak of daylight in July, where Glarus enjoys an impressive 15 hours of sunlight, gradually tapering through August’s 14 hours. The arrival of September signals the transition towards autumn, where the days shorten more noticeably, yet the light still lingers longer than in the chill of winter months ahead, such as October and November, which see daylight shrink to 10 and 9 hours respectively. Thus, September acts as a bridge, where the glow of lingering summer subtly blends into the quieter, cozier rhythms of autumn.
As September unfolds in Glarus, Switzerland, the average wind speed gently drifts to 1.1 m/s (3 mph), marking a subtle decline from the summer months. This decrease reflects a broader trend throughout the year, with the wind generally whispering around 3 mph during the warmer months before slightly picking up again in the fall and winter. Interestingly, while September's breeziness dips, it's important to note that it aligns with the consistently tranquil 1.2 m/s recorded in the late summer. With autumn approaching, the winds may invite a sense of calm, offering a serene backdrop to the stunning alpine landscapes as they transition into vibrant foliage.
Weather in Glarus varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Glarus, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather conditions. In September, temperatures range from a chilly -4°C (26°F) at night to a pleasant 23°C (73°F) during the day, with an average of 10°C (51°F). The month is characterized by significant precipitation, totaling 191 mm (7.5 in) over 18 days, accompanied by a relative humidity of 83%. In contrast, January experiences much colder temperatures, with a minimum of -19°C (-2°F) and a maximum of just 7°C (44°F), averaging -5°C (24°F). While the precipitation is slightly lower at 165 mm (6.5 in) over 12 days, humidity peaks at 92%, making it feel even chillier. For a closer look at January weather, visit Glarus weather in January.
September and February present stark contrasts in weather patterns. In September, temperatures range from a chilly minimum of -4°C (26°F) to a pleasant maximum of 23°C (73°F), with an average of 10°C (51°F). The month also sees considerable precipitation at 191 mm (7.5 in) spread over 18 days, accompanied by a humidity level of 83%. In contrast, February experiences much colder conditions, with a minimum temperature of -21°C (-5°F) and a maximum of 11°C (53°F), averaging around -2°C (28°F). Despite having less precipitation at 112 mm (4.4 in) over 13 days, February maintains a higher humidity level of 89%. For a detailed look at winter weather, check out Glarus weather in February.
September and March exhibit notable differences in weather patterns. September tends to be milder, with average temperatures around 10°C (51°F) and highs reaching up to 23°C (73°F), while March is much colder, with an average of 0°C (33°F) and maximum temperatures only reaching 15°C (60°F). Precipitation levels are relatively high in both months, with September experiencing 191 mm (7.5 in) and March slightly less at 148 mm (5.8 in). Additionally, humidity is slightly higher in March at 87% compared to 83% in September. For more detailed information about March weather, you can check Glarus weather in March.
September and April present distinct weather characteristics. In September, temperatures range from a chilly -4°C (26°F) at night to a comfortable 23°C (73°F) during the day, with an average of 10°C (51°F). The month experiences considerable rainfall, accumulating 191 mm (7.5 in) across 18 days and maintaining a humidity level of 83%. In contrast, April typically sees colder conditions, with minimum temperatures dropping to -19°C (-2°F) and a daytime maximum of 19°C (67°F), averaging 4°C (40°F). It has a lower total precipitation of 124 mm (4.9 in) over 14 days, with humidity remaining slightly higher at 84%. For more specific details, you can check the link: Glarus weather in April.
September weather generally showcases a more temperate climate compared to May. With average temperatures reaching 10°C (51°F) and maximums of 23°C (73°F), September tends to be milder, despite experiencing 191 mm (7.5 in) of precipitation over 18 days and an 83% humidity level. In contrast, May has slightly cooler averages at 8°C (46°F) and can peak at 24°C (76°F), but it sees increased rainfall at 209 mm (8.2 in) spread across 23 days, along with a lower humidity of 80%. For more specific details, you can check Glarus weather in May.
September and June exhibit notable differences in weather patterns, particularly in temperature and precipitation. In September, temperatures typically range from a chilly minimum of -4°C (26°F) to a comfortable maximum of 23°C (73°F), with an average of around 10°C (51°F). In contrast, June offers warmer conditions, with minimum temperatures starting at 0°C (32°F), peaking at a maximum of 29°C (84°F), and an average of 13°C (56°F).
Precipitation is significant in both months, with September receiving 191 mm (7.5 in) over 18 days, while June has slightly higher rainfall at 239 mm (9.4 in) across 21 days. Humidity levels are fairly comparable, with September at 83% and June slightly lower at 82%. Overall, June tends to be warmer and wetter than September. For a detailed overview, you can visit Glarus weather in June.
In comparing the weather between September and July, September tends to be cooler, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 23°C (73°F) and an average of 10°C (51°F). In contrast, July offers warmer temperatures, with lows of 5°C (40°F), highs reaching up to 28°C (83°F), and an average of 14°C (58°F). While both months experience high humidity levels of 83%, July sees more precipitation overall, accumulating 264 mm (10.4 in) over 22 days compared to September's 191 mm (7.5 in) over 18 days. For more detailed insights on July weather, you can check Glarus weather in July.
In comparing the weather of September and August, September experiences cooler temperatures, with a minimum of -4°C (26°F) compared to August's minimum of 4°C (39°F). The average temperature in September is 10°C (51°F), while August boasts a warmer average of 14°C (57°F). Additionally, September sees a maximum temperature of 23°C (73°F), in contrast to August's higher maximum of 26°C (79°F). Precipitation is also notable; September has 191 mm (7.5 in) of rain over 18 days, while August is wetter, with 289 mm (11.4 in) over 22 days. Despite September being slightly more humid at 83%, August maintains a close humidity level at 80%. For a detailed look at August weather, you can visit Glarus weather in August.
September and October exhibit notable differences in weather conditions. In September, temperatures fluctuate more widely, with a minimum of -4°C (26°F), an average of 10°C (51°F), and a maximum reaching 23°C (73°F). The month is also characterized by significant precipitation, totaling 191 mm (7.5 in) over 18 rainy days and a humidity level of 83%. In comparison, October sees a slight drop in temperatures, with minimums remaining at -4°C (24°F), an average of 6°C (44°F), and a maximum of 18°C (65°F). Precipitation decreases to 168 mm (6.6 in) over 14 days, while humidity rises to 90%. For more specifics on the weather during this time, check out Glarus weather in October.
September and November exhibit contrasting weather patterns. September welcomes milder temperatures, ranging from a minimum of -4°C (26°F) to a maximum of 23°C (73°F), with an average of 10°C (51°F). In this month, precipitation is quite significant, totaling 191 mm (7.5 in) across 18 days, while humidity hovers at 83%. In comparison, November experiences colder conditions, with temperatures dropping to a minimum of -14°C (8°F) and an average of just 1°C (34°F), peaking at 16°C (61°F). The precipitation decreases to 104 mm (4.1 in) over 13 days, but humidity rises slightly to 88%. For a more detailed look at November weather patterns, you can refer to Glarus weather in November.
September and December in Glarus present starkly contrasting weather conditions. In September, temperatures range from a minimum of -4°C (26°F) to a pleasant maximum of 23°C (73°F), with an average of 10°C (51°F). This month also experiences significant precipitation of 191 mm (7.5 in) over 18 days, with humidity levels at 83%. In contrast, December brings much colder temperatures, with a minimum of -18°C (0°F) and a maximum of just 8°C (46°F), averaging -3°C (27°F). The month also sees slightly higher precipitation at 198 mm (7.8 in) across 19 days and increased humidity at 90%. For more detailed information, you can check Glarus weather in December.
As September unfolds in Glarus, the weather presents a unique transition from the warmth of summer to the cooler embrace of autumn. With temperatures dipping to an average of 10°C and peaking at a maximum of 23°C, this month stands out for its notable shifts in climate. Rainfall is a significant hallmark, boasting an impressive 191 mm over 18 days, while humidity levels remain high at around 83%. This blend of warmth and moisture contrasts sharply with the drier and hotter months of July and August, making September not just a month of change, but a moment to appreciate the natural beauty of Glarus. For an in-depth look at how Glarus' weather evolves throughout the year, visit Glarus Climate.