Last updated: August 27, 2025
September in Hergiswil, Switzerland offers a delightful yet varied climate, with maximum temperatures reaching a comfortable 25°C (78°F). The average temperature settles around 14°C (58°F), while chilly nights can dip to a brisk 3°C (37°F). As the month progresses, expect an average precipitation of 138 mm (5.4 in) spread over approximately 15 days, contributing to a humid atmosphere with levels around 83%. This mixture of warm days and cooler evenings, punctuated by refreshing rain, creates an inviting backdrop for enjoying the scenic beauty of the region.
September in Hergiswil, Switzerland marks a delightful transition from the summer warmth to the crispness of autumn. This month typically features minimum temperatures around 3°C (37°F) and an inviting average of 14°C (58°F), making outdoor activities appealing as the landscape begins to showcase its vibrant fall colors. The afternoons can warm up quite pleasantly, with maximum temperatures reaching up to 25°C (78°F), allowing for lingering moments of sunshine before the weather shifts. As the month progresses, you’ll notice a gradual cooling trend that foreshadows the approaching winter, yet the mild September days still provide a lovely backdrop for exploring the stunning natural beauty of the region.
September in Hergiswil, Switzerland, showcases a noteworthy balance in precipitation, with 138 mm (5.4 in) of rain falling over 15 days. This amount mirrors the figures seen in January, indicating that early autumn can have a similarly damp character. Following the wettest summer months, June and July, which exceed 200 mm, the precipitation levels in September take a dip but remain significant, reflecting a transition into the less severe conditions of fall. As the month progresses, residents can expect a mix of crisp air and occasional showers, reinforcing the region's reputation for a varied climate that seamlessly blends the vibrancy of summer with the quietude of autumn.
In September, Hergiswil, Switzerland experiences a moderate humidity level of 83%, which marks a slight rise from the drier summer months of August at 80%. This uptick signals the transition towards the wetter fall season, as humidity levels begin to creep back up in anticipation of October's significant 90%. Overall, the pattern throughout the year reveals a steady decline from the high humidity early in the year, reaching its lowest in May at 80%, before gradually increasing again as the seasons change. This cyclical trend reflects Hergiswil's distinct climate dynamics, where summer’s warmth gives way to the crispness of autumn, all while maintaining a substantial level of moisture in the air.
In September, Hergiswil, Switzerland, experiences a transition in its UV Index, dropping to 6, which falls into the high exposure category. This signifies a notable decrease from the peak summer months, where values soared to 9, demanding only 15 minutes of sun before burning occurs. As we move towards autumn, the burn time increases back to 25 minutes, suggesting a more moderate sun intensity while still requiring caution. Overall, the UV Index trends indicate a gradual shift from the intense summer rays to a more manageable level, making it critical for outdoor enthusiasts to remain vigilant about sun protection even in early fall. For further insights, check out the detailed Hergiswil UV Index.
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As summer gracefully transitions into autumn, September in Hergiswil, Switzerland, boasts a delightful 320 hours of sunshine, a charming conclusion to the sun-drenched months of July and August, which recorded 415 and 384 hours respectively. This slight dip reflects the well-known trend of diminishing daylight as the year progresses, yet September still shines brighter than the earlier months like January and February, which struggle with only 164 and 228 hours of sunshine. While the warm hues of summer linger, the days gradually shorten, inviting a gentle shift in the landscape and atmosphere—a perfect time for leisurely strolls along the picturesque lakeside. The balance between vibrant warmth and the onset of crisp autumn air makes September a truly enchanting month in Hergiswil, perfectly poised to embrace the upcoming fall season.
In Hergiswil, Switzerland, the likelihood of sunny weather in September is fairly optimistic, sitting at 36%, a figure that mirrors the probabilities seen in both August and October. As the summer draws to a close, September offers a slight reprieve with a comparable amount of sunshine to its neighboring months. Interestingly, while the chances of sun fluctuate throughout the year, reaching a peak of 46% in April, the early autumn months maintain a consistent outlook, suggesting that September can still present delightful days ideal for outdoor activities. Nevertheless, as winter approaches, Hergiswil transitions into a period of reduced sunshine, emphasizing the importance of seizing those sunlit moments while they last.
As summer gracefully transitions into autumn, September in Hergiswil, Switzerland offers a delightful balance of daylight, averaging 12 hours per day. This month marks a noticeable decline from the sun-drenched 15 hours witnessed in June through August, as Nature begins its gentle preparations for the colder months ahead. Following the peak of summer, the waning daylight serves as a reminder of the shifting seasons, transitioning into cozy evenings. This rhythm of daylight—a gradual decrease from 15 hours in the peak summer to a lower 12 in September—highlights the beauty of nature's cycles, inviting residents and visitors alike to savor the waning warmth before autumn fully takes hold.
As autumn approaches in Hergiswil, Switzerland, the September winds continue a gentle trend established throughout the warmer months, maintaining an average speed of 1.3 m/s (3 mph). This subtle breeze is consistent with the calming patterns observed since late spring, where wind speeds have hovered around similar low levels. Notably, the transition from summer to autumn shows no significant increase in wind intensity, indicating a serene atmosphere ideal for contemplation by the picturesque shores of Lake Lucerne. As the leaves begin to change and the air grows crisp, the steady September winds serve as a gentle reminder of the shifting seasons, inviting both locals and visitors to embrace the quiet beauty of this enchanting region.
Weather in Hergiswil varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hergiswil, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September and January, there is a stark contrast in temperatures and conditions. September enjoys a mild climate with average temperatures reaching 14°C (58°F), peaking at 25°C (78°F), while January offers a much colder experience with an average of 0°C (32°F) and a maximum of only 12°C (54°F). Both months see similar precipitation levels of 138 mm (5.4 in), but September experiences this over 15 days compared to January's 13 days. Additionally, January has a higher humidity level of 92%, compared to September's 83%, contributing to a chillier feel in the winter months. For a detailed look at the weather specifics in January, check out Hergiswil weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a mild 3°C (37°F) to a comfortable high of 25°C (78°F), with an average of 14°C (58°F) and relatively high humidity at 83%. This month experiences significant rainfall, with about 138 mm (5.4 in) falling over 15 days. In contrast, February is characterized by much colder temperatures, with minimums sinking to -17°C (2°F) and maximums peaking at only 16°C (62°F), averaging around 2°C (36°F). Despite having less precipitation at 107 mm (4.2 in) over 12 days, February's humidity is slightly higher at 89%. For more detailed insights, visit Hergiswil weather in February.
When comparing the weather in September and March, notable differences emerge. September typically boasts a milder climate with average temperatures around 14°C (58°F), peaking at 25°C (78°F), while March is chillier, with an average of just 4°C (40°F) and a maximum of 18°C (65°F). In terms of precipitation, September sees slightly more rainfall (138 mm or 5.4 in) over about 15 days, compared to March's 126 mm (5.0 in) across 16 days. Both months experience high humidity, with September at 83% and March even higher at 87%. For more insights on March’s weather, visit Hergiswil weather in March.
September generally offers warmer temperatures compared to April, with average highs reaching 25°C (78°F) compared to April's maximum of 23°C (73°F). However, April experiences colder nights with minimum temperatures dipping to -6°C (21°F), while September's lows are milder at 3°C (37°F). Precipitation levels are higher in September, with 138 mm (5.4 in) spread over 15 days, compared to April's 102 mm (4.0 in) over 12 days. Both months maintain high humidity levels, with April slightly ahead at 84% versus September's 83%. For more detailed insights, you can check Hergiswil weather in April.
In comparing the weather between September and May, we observe distinct differences in temperature and precipitation patterns. September offers a milder climate, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 25°C (78°F) and an average of 14°C (58°F). In contrast, May experiences lower minimum temperatures of -6°C (21°F) and a slightly lower average of 11°C (52°F), although it can reach up to 28°C (83°F) at its peak.
Both months see a significant amount of rainfall, but May has higher precipitation totals, with 172 mm (6.8 in) spread across 19 wet days, compared to September's 138 mm (5.4 in) over 15 days. The humidity levels are relatively similar, with September at 83% and May at 80%. For more detailed insights into May’s climate, you can visit Hergiswil weather in May.
September and June showcase distinct weather patterns, reflecting the transition from summer to autumn. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 25°C (78°F), with an average of 14°C (58°F). The month sees about 138 mm (5.4 in) of precipitation over 15 days, coupled with high humidity at 83%. In contrast, June experiences warmer temperatures, with a minimum of 5°C (41°F) and a peak of 32°C (90°F), averaging 16°C (62°F). This month is wetter, with 202 mm (8.0 in) of rainfall spread across 18 days, maintaining a similar humidity level of 82%. For a detailed view of June weather, check out Hergiswil weather in June.
When comparing the weather in September and July, it’s clear that July is generally warmer and wetter. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 31°C (89°F), with an average temperature of 18°C (64°F). The month experiences about 199 mm (7.8 in) of precipitation over 18 days, while humidity remains at a consistent 83%. In contrast, September sees cooler temperatures, with a minimum of just 3°C (37°F) and a maximum of 25°C (78°F), averaging 14°C (58°F). Precipitation is slightly lower at 138 mm (5.4 in), occurring over 15 days. Despite the differences in temperature and precipitation, both months share the same humidity level of 83%. For more specific details about July's weather, check out Hergiswil weather in July.
In comparing the weather of September and August, September tends to be cooler, with minimum temperatures dropping to 3°C (37°F) compared to August's milder 8°C (46°F). The average temperature in September is 14°C (58°F), significantly lower than August's average of 18°C (64°F). Additionally, maximum temperatures in September peak at 25°C (78°F), which is notably lower than August's warm peak of 30°C (87°F). Precipitation increases slightly in September to 138 mm (5.4 in) over 15 days, while August experiences higher precipitation at 193 mm (7.6 in) over 16 days. Humidity levels remain high in both months, with September at 83% and August at 80%. For more details on August weather specifics, check out Hergiswil weather in August.
September generally offers milder weather compared to October, with average temperatures reaching up to 14°C (58°F) and a maximum of 25°C (78°F). However, as October arrives, temperatures drop significantly, with averages falling to 10°C (50°F) and highs capping at 21°C (70°F). Additionally, October experiences a slight increase in precipitation, accumulating 158 mm (6.2 in) over 14 days, compared to September's 138 mm (5.4 in) across 15 days, and the humidity rises to 90%. For more detailed weather information, you can visit Hergiswil weather in October.
In September, the weather tends to be milder, with average temperatures ranging from a minimum of 3°C (37°F) to a high of 25°C (78°F), making it a comfortable month overall. With 138 mm (5.4 in) of precipitation over approximately 15 days and humidity at 83%, it can feel quite damp, but the warmer days often allow for outdoor activities.
Conversely, November brings a significant drop in temperatures, with averages falling between -4°C (26°F) and a maximum of 20°C (68°F). Precipitation decreases to 97 mm (3.8 in) over 13 days, yet the high humidity of 88% makes it feel quite chilly. For a detailed look at what to expect, check out Hergiswil weather in November. Overall, while September offers warmer days, November ushers in a wintery chill that signals the arrival of the colder months.
In September, the weather is relatively mild with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 25°C (78°F), averaging around 14°C (58°F). The month experiences considerable precipitation, totaling 138 mm (5.4 in) over about 15 days, coupled with a humidity level of 83%. In contrast, December brings colder conditions, with temperatures dropping to a minimum of -9°C (16°F) and reaching a maximum of 11°C (53°F), averaging only 2°C (35°F). This month is also wetter, with 169 mm (6.6 in) of precipitation spread across 18 days, and humidity rising to 90%. The stark differences in temperature and humidity highlight the transition from autumn to winter. For a more detailed look at December weather, visit Hergiswil weather in December.
September in Hergiswil marks a transition into cooler temperatures as summer fades, offering a blend of mild days and crisp nights. With the average temperature hovering around a comfortable 14°C, this month is distinct from the warmer heights of summer, though it can still reach a pleasant maximum of 25°C. However, as autumn approaches, the likelihood of rain increases, with about 15 days of precipitation contributing to the total of 138 mm, ensuring that the landscape remains lush and vibrant. The humidity sits at a notable 83%, adding a refreshing touch to the cooler air. For a deeper understanding of the unique characteristics of this mountain town's weather patterns, explore Hergiswil Climate.