Last updated: August 27, 2025
September in Lenzburg, Switzerland offers a diverse weather experience characterized by its fluctuating temperatures. The month can see maximum highs reaching up to 29°C (84°F), while the average temperature hovers around 15°C (60°F), contrasting with cooler nights that can dip to a brisk 2°C (35°F). Rainfall is notable, with 82 mm (3.2 in) spread over approximately 12 days, contributing to a humidity level of 83%. This blend of warmth and occasional showers creates an intriguing backdrop for both locals and visitors, making September a month of transition and vibrant natural beauty in Lenzburg.
In September, Lenzburg, Switzerland, experiences a notable transition as summer fades into autumn. The temperatures start to cool, with minimums around 2°C (35°F) and averages settling at 15°C (60°F). However, the afternoons can still reach a balmy 29°C (84°F), offering a lingering warmth reminiscent of summer days. This month signifies a shift marked by decreasing maximum temperatures, following the peaks of July and August, which soared to nearly 35°C (95°F). As nature begins to don its autumn attire, September presents a unique blend of lingering warmth and cooler mornings, making it an ideal time for outdoor explorations amidst the stunning landscapes of Lenzburg.
In September, Lenzburg experiences a noticeable shift as summer gradually yields to autumn. With 82 mm (3.2 in) of precipitation over 12 days, the month marks a transition characterized by milder rainfall compared to the preceding summer months. This slight decrease in both total rainfall and the number of rainy days hints at the end of the wetter season, where August topped out with 141 mm (5.5 in) across 15 days. As the region prepares for October's return to cooler and wetter conditions, September serves as a gentle reminder of the shifting weather patterns, introducing a more tranquil and refreshing atmosphere perfect for embracing the onset of fall.
In September, Lenzburg, Switzerland, experiences a moderate humidity level of 83%, which marks a slight increase from the drier months of August (80%) and May (80%). This trend indicates a gradual buildup of moisture as summer transitions into fall. Interestingly, humidity levels tend to rise again in the subsequent months, peaking at 90% in both October and December. Overall, while September maintains a comfortable balance, it signals the onset of a notably more humid period as the year draws to a close, reflecting the rich atmospheric changes typical of this charming Swiss region.
As September unfolds in Lenzburg, Switzerland, the UV Index stands at a moderate 6, indicating a return to high exposure levels after the peak summer months. This slight dip from the intense 9 recorded in July and August reflects the gradual transition into autumn, with a recommended burn time of 25 minutes. As the sun's strength begins to decline, residents should remain conscious of sun safety, finding a balance between enjoying the outdoors and protecting their skin. The UV Index in September serves as a reminder that while the summer's intensity wanes, vigilance against UV radiation remains essential. For more detailed information, visit Lenzburg UV Index.
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September in Lenzburg, Switzerland, brings a delightful transition as the summer sun begins to wane, offering 321 hours of brilliant daylight. This month experiences a notable decrease from the sun-drenched heights of July, when residents basked in 413 hours of sunshine, and August's generous 380 hours. Interestingly, September's sunlight remains robust compared to the winter months, such as October with 269 hours and November, which sees just 198 hours. This gradual decline into autumn highlights the changing seasons, making September a perfect time for outdoor activities amidst the colorful backdrop of fall leaves, before the chill of winter sets in.
As September approaches in Lenzburg, Switzerland, the likelihood of sunny weather begins to brighten up the month, with a 43% chance of sunshine. This marks a notable increase from the relatively lower probabilities seen in the summer months of June (31%) and July (35%). Coupled with the mild temperatures typical of early autumn, September offers a delightful window for outdoor activities and scenic explorations. While the sun may not shine as consistently as in the spring months, where chances hit just above 49%, September still presents a favorable option for enjoying the beautiful Swiss landscape before winter sets in. Overall, as the year transitions, September stands out for its balanced blend of sun and warmth, enticing locals and visitors alike to savor the tail end of summer.
As summer fades into autumn in Lenzburg, Switzerland, September marks a transition in daylight. After basking in up to 15 hours of sunshine during the peak of summer, the days begin to shorten, offering about 12 hours of daylight this month. This shift reflects a gradual descent from the vibrant light of summer, illustrating a clear trend: as the year progresses, daylight diminishes steadily. Following September, daylight dips further to 10 hours in October and continues to decline towards the winter months. The changing length of daylight not only serves as a reminder of the passing seasons but also enriches the natural beauty of Lenzburg as it embraces autumn's golden hues.
As September ushers in the gentle embrace of autumn in Lenzburg, Switzerland, the wind starts to whisper softer tunes, with an average speed of just 1.7 m/s (4 mph). This marks a slight decline in breeziness compared to the summer months, reflecting a broader trend where wind speeds tend to decrease as the seasons transition. After the milder gusts of June through August, which hovered around 1.9 m/s, September’s calmer atmosphere signals a shift towards the crispness of fall. This gradual reduction in wind speed provides a serene backdrop, perfect for enjoying the scenic beauty of Lenzburg’s autumnal hues. As the year progresses into October, the breezes remain mild, suggesting that the tranquil essence of September lingers just a little longer in this picturesque Swiss town.
Weather in Lenzburg varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lenzburg, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. In September, temperatures can range from a mild 2°C (35°F) to a warm 29°C (84°F), averaging around 15°C (60°F), while January experiences much colder weather, with temperatures dipping as low as -15°C (6°F) and peaking at only 16°C (61°F), averaging at just 1°C (34°F). Both months see a similar amount of precipitation, with September receiving 82 mm (3.2 in) over 12 days and January slightly higher at 91 mm (3.6 in) over 11 days. Additionally, January has a higher humidity level of 92% compared to September's 83%. For a closer look at the weather specifics in January, check out Lenzburg weather in January.
September and February present contrasting weather patterns, showcasing the transition from late summer to mid-winter. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 29°C (84°F), with an average of 15°C (60°F) and a notable humidity of 83%. The month sees about 82 mm (3.2 in) of precipitation over 12 days, indicating a relatively wet end to summer.
In contrast, February features much cooler temperatures, with a minimum of -10°C (14°F) and a maximum of 18°C (65°F), resulting in an average temperature of just 3°C (39°F). Although February experiences slightly less precipitation at 76 mm (3.0 in) over 11 days, the humidity rises to 89%, contributing to a crisp, cold atmosphere. For a closer look at February’s weather specifics, check out Lenzburg weather in February.
In September, the weather is generally warmer, with average temperatures fluctuating between 15°C (60°F) and a maximum of 29°C (84°F), while March experiences chillier conditions with an average of 6°C (43°F) and highs reaching only 21°C (70°F). Both months experience notable precipitation, with September seeing 82 mm (3.2 in) over 12 days and March slightly wetter at 88 mm (3.5 in) over 14 days. Humidity levels are quite similar, with September at 83% and March just slightly higher at 87%. For a more detailed look at March weather, you can check out Lenzburg weather in March.
When comparing the weather in September and April, notable differences emerge. September tends to be warmer, with average temperatures reaching 15°C (60°F) and highs of 29°C (84°F), while April's average is cooler at 10°C (50°F) with a maximum of 26°C (80°F). Precipitation is more prevalent in September, totaling 82 mm (3.2 in) over 12 days, compared to April, which sees 60 mm (2.4 in) over just 10 days. Despite these differences, both months maintain high humidity levels, with September at 83% and April slightly higher at 84%. For a more detailed look at April weather, you can visit Lenzburg weather in April.
September weather in Lenzburg tends to be warmer, with average temperatures reaching around 15°C (60°F) and a maximum of 29°C (84°F), compared to May, where the average is slightly cooler at 13°C (56°F) with a high of 30°C (86°F). However, May experiences more precipitation, totaling 132 mm (5.2 in) over 16 days, compared to September's 82 mm (3.2 in) over 12 days. Both months have relatively high humidity, with September at 83% and May at 80%, making them both feel quite moist. For more detailed information on May weather, check out Lenzburg weather in May.
When comparing the weather in September and June, we observe several notable differences. September experiences milder temperatures, with a minimum of 2°C (35°F) and an average of 15°C (60°F), while June is warmer, featuring a minimum of 6°C (44°F) and an average of 19°C (66°F). The maximum temperatures also reflect this trend, peaking at 29°C (84°F) in September compared to June's max of 34°C (94°F). In terms of precipitation, June has a higher total with 133 mm (5.2 in) over 16 days, while September sees 82 mm (3.2 in) across 12 days. Additionally, humidity levels are quite similar, with September at 83% and June slightly lower at 82%. For more detailed insights on the June weather, refer to Lenzburg weather in June.
In comparing the weather of September and July, one can observe notable differences in temperature and precipitation patterns. September experiences milder temperatures, with a minimum of 2°C (35°F) and an average of 15°C (60°F), while July is significantly warmer, boasting a minimum of 8°C (47°F) and an average of 20°C (68°F), reaching maximums of 29°C (84°F) and 35°C (95°F) respectively. Precipitation is more frequent in July, with 128 mm (5.1 in) over 16 days, compared to September's 82 mm (3.2 in) over 12 days, suggesting that July could be considered the wetter month despite its higher temperatures. Both months share the same humidity level of 83%, creating a muggy atmosphere in both cases. For more details on July weather, you can visit Lenzburg weather in July.
September weather shows a notable drop in temperature compared to August, with minimum temperatures falling from 7°C (45°F) in August to just 2°C (35°F) in September. The average temperature also decreases significantly from 19°C (67°F) in August to 15°C (60°F) in September, while the maximum temperature decreases from a high of 34°C (94°F) to 29°C (84°F). Additionally, September experiences slightly less precipitation, with 82 mm (3.2 in) over 12 days, compared to August’s 141 mm (5.5 in) across 15 days. Humidity levels are relatively consistent, at 80% in August and slightly higher at 83% in September. For a closer look at August weather, you can check this link: Lenzburg weather in August.
September and October present a notable shift in weather patterns. In September, temperatures range from a cool 2°C (35°F) at night to a warm 29°C (84°F) during the day, with an average of 15°C (60°F). The month sees around 82 mm (3.2 in) of precipitation over 12 days, and humidity levels sit at 83%. In contrast, October brings cooler temperatures, with a minimum of -1°C (31°F) and an average of 10°C (51°F), peaking at 23°C (73°F). This month also experiences slightly more rainfall, totaling 92 mm (3.6 in) across 13 days, and humidity rises to 90%. For a more detailed look at what to expect, check out Lenzburg weather in October.
September offers a milder climate with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 29°C (84°F), making it a pleasant month for outdoor activities. In contrast, November sees a drop in temperatures, with averages between -4°C (26°F) and 20°C (68°F), signaling the transition into winter. While September experiences more rainfall with 82 mm over 12 days, November has slightly less precipitation at 67 mm, also spread over 12 days. Additionally, November's higher humidity level at 88% adds to the crisp atmosphere as the fall season progresses. For more specific details on November weather, you can visit Lenzburg weather in November.
September and December present quite contrasting weather patterns. In September, temperatures range from a mild 2°C (35°F) at night to a warm 29°C (84°F) during the day, with an average of 15°C (60°F). The month sees moderate precipitation at 82 mm (3.2 in) over approximately 12 days and maintains a relatively high humidity level of 83%. In contrast, December brings much colder temperatures, with lows plummeting to -6°C (21°F) and highs reaching only 14°C (57°F), averaging just 3°C (37°F). The precipitation also increases to 125 mm (4.9 in) across 18 days, with humidity rising to a notable 90%. This shift marks a significant transition from the warmth of autumn to the chill of winter. For more details on December weather, you can check Lenzburg weather in December.
As September unfolds in Lenzburg, the weather presents a captivating transition from the warmth of summer to the crispness of autumn. With a maximum temperature reaching up to 29°C (84°F) during the day, it often feels like lingering summer, while the average cools down to a refreshing 15°C (60°F) at night. The humidity remains relatively high at 83%, and precipitation is not uncommon, with approximately 82 mm (3.2 in) of rainfall spread over about 12 days. This balance of warmth and moisture makes September a unique month that stands apart from the preceding hot summer months and the chillier fall days ahead. To learn more about what to expect throughout the year, visit Lenzburg Climate.