Last updated: August 27, 2025
September in Arlesheim, Switzerland offers a delightful mix of warm and cool temperatures, with highs reaching 30°C (86°F) and an average of 16°C (60°F). As the month transitions into autumn, the mercury can dip as low as 1°C (35°F), making for varied daily experiences. While visitors can expect 10 days of precipitation, amounting to 67 mm (2.6 in), the air remains 81% humid, adding a refreshing touch to the scenery. This blend of warmth and moisture enhances the lush landscapes, creating a picturesque backdrop for exploration and relaxation in this charming Swiss town.
In September, Arlesheim, Switzerland experiences a delightful transition, as the summer warmth begins to wane while the crispness of autumn gently encroaches. With minimum temperatures settling at 1°C (35°F) and averaging around 16°C (60°F), the month showcases a comfortable climate perfect for outdoor exploration. The highs remain pleasant, reaching up to 30°C (86°F), allowing for lingering sunshine and vibrant scenery. This blend of warm days and cooler nights not only fosters a beautiful environment for local harvests but also serves as an ideal backdrop for leisurely strolls through Arlesheim’s picturesque landscapes, making September a truly enchanting time to visit.
September in Arlesheim, Switzerland, heralds a noticeable shift in precipitation patterns, with 67 mm (2.6 in) of rain recorded over 10 days. This dip marks a decline from the wetter summer months, where August saw total rainfall of 115 mm (4.5 in) across 15 days. The transition into autumn is characterized by milder precipitation, reflecting a trend of decreasing rainfall as the year progresses, particularly notable when contrasted with the peak monthly totals observed in May (133 mm) and June (125 mm). As the days grow shorter and cooler, the drier September signals a gentle retreat from the lush, rain-soaked greens of summer, setting the stage for the wetter fall months ahead.
September in Arlesheim, Switzerland, presents a refreshing shift as humidity levels settle at 81%, following a drier August at 77%. This slight increase hints at the transition towards the wetter months ahead, with humidity gradually rising again in October to 89%. Observing the yearly trend, we see the highest humidity recorded in the winter months, hovering around 91% in January and December. This seasonal rhythm suggests that as summer wanes, Arlesheim welcomes a more humid atmosphere, bridging the gap between the warmth of summer and the chill of autumn.
As summer transitions into autumn, September in Arlesheim sees a notable drop in UV intensity, with the UV Index sitting at a moderate 6. This categorizes exposure as high, marking a shift from the scorching very high levels experienced in the peak summer months of June and July. During September, the recommended burn time stretches back to 25 minutes, offering a more forgiving environment for outdoor activities compared to the intense 15 minutes of earlier summer days. As the days grow shorter, this month's UV Index serves as a reminder to remain vigilant about sun protection, especially during midday hours. For more details, visit Arlesheim UV Index.
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As September arrives in Arlesheim, Switzerland, it graces the region with a delightful 323 hours of sunshine, a gentle reminder that summer is slowly bidding farewell. This is a noticeable shift from the sun-drenched heights of July, which boasts a captivating 413 hours, and the warmer hues of August, with 381 hours illuminating the landscape. September sits comfortably between the vibrant summer months and the more subdued autumn, marking a transitional phase where daylight begins to recede. While the sun shines generously, it paves the way for the cooler months ahead, as the hours of sunshine progressively drop in October to 265 hours, hinting that the cozy charm of fall is just around the corner. This rich tapestry of sunlight paints a beautiful backdrop for those savoring the last warm days of the year in Arlesheim.
As September rolls into Arlesheim, Switzerland, the likelihood of enjoying sunny weather takes a noticeable leap. With a 43% chance of sunshine, this early autumn month offers a promising transition from the warmer summer days. Although not as bright as the peak spring months, which boast up to 52% sun in April, September still emerges as one of the more favorable times for outdoor activities, particularly when compared to the winter months, where sunshine can dwindle to around 17% in January. This trend suggests that while summer enthusiasts may find July and August enticing with their 38% chances, the crisp air of September combined with a respectable amount of sunshine makes it a delightful time for nature lovers and adventurers alike to explore the beauty of Arlesheim.
As summer gracefully transitions into autumn, September in Arlesheim, Switzerland, offers a delightful balance of daylight with approximately 12 hours of sunlight. This marks a gradual decline from the sun-kissed peak of 15 hours seen in the height of summer months, July and August. The progression from the shorter days of winter, with only 8 hours of sunlight in January and December, becomes more apparent as the year unfolds; February begins to brighten the landscape with 10 hours, leading into the budding 11 hours of March. As spring warms into summer, Arlesheim basks in up to 15 hours of daylight, creating a vibrant atmosphere perfect for outdoor activities. September, while slightly shorter than its predecessors, still retains a generous amount of daylight, serving as a gentle reminder of the impending seasonal change.
As September unfolds in Arlesheim, Switzerland, the gentle breeze carries a softer touch, with an average wind speed dipping to 1.7 m/s (4 mph), marking the month as one of the calmest of the year. This trend of gradually decreasing wind speeds is evident as we transition from the summer months, where May reaches a modest 2.8 m/s (6 mph), to the more tranquil atmosphere of autumn. The extensive data showcases a consistent decline in wind activity from June through September, suggesting a serene wrap-up to summer and a cozy embrace of fall. As the landscape transforms with rich autumn colors, the milder winds create an inviting atmosphere, perfectly suited for leisurely strolls among the enchanting scenery of Arlesheim.
Weather in Arlesheim varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Arlesheim, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather exhibits a pleasant range with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 30°C (86°F), averaging around 16°C (60°F). Precipitation is moderate, with about 67 mm (2.6 in) spread over 10 days, and humidity levels average around 81%. In contrast, January presents a much colder climate, with temperatures dipping as low as -13°C (8°F) and averaging just 1°C (35°F), peaking at 16°C (61°F). The month is also wetter, receiving 94 mm (3.7 in) of precipitation over 12 days, and the humidity rises slightly to 91%. For a more detailed look at weather specifics, check out Arlesheim weather in January.
September and February offer contrasting weather experiences. In September, temperatures range from a mild 1°C (35°F) at night to a warm 30°C (86°F) during the day, with an average of 16°C (60°F). The month sees about 67 mm (2.6 in) of precipitation over 10 days, coupled with a humidity level of 81%. In contrast, February is much colder, with temperatures plummeting as low as -14°C (7°F) and peaking at 18°C (65°F), averaging around 4°C (39°F). Precipitation increases slightly to 77 mm (3.0 in) over 12 days, and the humidity rises to 89%. For more details on February weather, check out Arlesheim weather in February.
September and March present distinctly different weather patterns. In September, temperatures generally range from a mild 1°C (35°F) at night to a warm 30°C (86°F) during the day, with an average of 16°C (60°F). The month sees about 67 mm (2.6 in) of precipitation over 10 days, accompanied by high humidity at 81%. In contrast, March has colder temperatures, with lows plummeting to -13°C (9°F) and a maximum of only 21°C (71°F). The average temperature sits at a chilly 6°C (43°F), and it experiences more precipitation at 91 mm (3.6 in) over 15 days, along with slightly higher humidity at 87%. For a detailed comparison, you can check Arlesheim weather in March.
When comparing the weather in September and April, notable differences can be observed. September boasts a wider temperature range with minimums of 1°C (35°F) and maximums reaching up to 30°C (86°F), averaging around 16°C (60°F). In contrast, April experiences cooler conditions, featuring minimum temperatures dropping to -4°C (25°F) and an average temperature of 10°C (50°F) with its highest at 26°C (79°F). Precipitation levels are relatively similar, with September receiving 67 mm (2.6 in) and April just slightly lower at 62 mm (2.4 in), both spread over approximately 10 days. Humidity is slightly lower in September at 81%, while April remains a bit more humid at 84%. For more detailed insights, you can explore Arlesheim weather in April.
When comparing the weather in September and May, notable differences emerge despite their similar maximum temperatures. September typically experiences a wider range, with minimum temperatures averaging around 1°C (35°F) and an average of 16°C (60°F), while May has slightly cooler averages, with a minimum of 0°C (32°F) and an overall average of 13°C (56°F). Precipitation is also significantly higher in May, with 133 mm (5.2 in) over 17 days, compared to September's 67 mm (2.6 in) over 10 days. Both months maintain similar humidity levels, hovering around 80-81%. For a detailed look at how May weather affects the region, explore Arlesheim weather in May.
September and June exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 30°C (86°F), with an average of 16°C (60°F), while June brings warmer conditions with a minimum of 5°C (42°F) and a maximum of 34°C (94°F), averaging 19°C (66°F). Additionally, September sees less precipitation at 67 mm (2.6 in) over 10 days compared to June's 125 mm (4.9 in) over 16 days. Humidity levels are fairly similar in both months, with September at 81% and June at 82%. For a more comprehensive overview of weather conditions, explore Arlesheim weather in June.
In comparing the weather of September and July, we notice some key differences. September experiences a broader range of temperatures, with minimums dipping to 1°C (35°F) and maximums reaching up to 30°C (86°F), resulting in an average of 16°C (60°F). In contrast, July is generally warmer, with minimum temperatures around 8°C (47°F), maximums peaking at 37°C (98°F), and an average of 20°C (68°F). Precipitation is also more significant in July, totaling 117 mm (4.6 in) over about 14 days, compared to September's 67 mm (2.6 in) during 10 days. Humidity levels remain relatively high in both months, at 81% in September and 82% in July. For more details, you can check out Arlesheim weather in July.
In comparing the weather between September and August, September presents a notable drop in temperature, with minimum highs of 1°C compared to August's minimum of 6°C. The average temperature in September is milder at 16°C, while August remains warmer at an average of 20°C. Despite experiencing fewer maximum temperatures, September can still reach up to 30°C, whereas August peaks at a striking 35°C. Precipitation is higher in August, with 115 mm over 15 days compared to September's 67 mm over 10 days, although September has slightly higher humidity at 81% versus August’s 77%. For a detailed overview of August’s conditions, you can refer to Arlesheim weather in August.
As September transitions into October, the weather experiences noticeable变化. September boasts a wider temperature range, with minimums at 1°C (35°F) and maximums reaching up to 30°C (86°F), providing a pleasant average of 16°C (60°F). In contrast, October sees cooler temperatures, with lows dipping to -1°C (30°F) and an average of 11°C (51°F), while highs peak at 24°C (76°F). Additionally, precipitation increases from 67 mm (2.6 in) over 10 days in September to 92 mm (3.6 in) across 14 days in October. The humidity also rises slightly, reaching 89% in October compared to 81% in September. For more details on the specific weather conditions during this time, you can visit Arlesheim weather in October.
September and November present quite different weather profiles. In September, temperatures typically range from a low of 1°C (35°F) to a high of 30°C (86°F), with an average of 16°C (60°F), creating a warm and pleasant atmosphere ideal for outdoor activities. With 67 mm (2.6 in) of precipitation over about 10 days and a relative humidity of 81%, the month can still be a bit humid, though generally more comfortable.
In contrast, November sees much cooler temperatures, with a minimum of -4°C (25°F) and an average of 5°C (41°F). The maximum temperature of 21°C (70°F) is significantly lower than September's, creating a much chillier environment. November has slightly higher precipitation at 79 mm (3.1 in) spread over 13 days, along with increased humidity at 89%, contributing to a more overcast and damp feel. For details on the specific weather conditions in November, you can check Arlesheim weather in November.
In comparing the weather between September and December, we see a notable shift in temperature and precipitation patterns. September typically enjoys a milder climate, with average temperatures ranging from 1°C (35°F) at night to a warm 30°C (86°F) during the day, while December experiences colder conditions, with temperatures dipping as low as -5°C (23°F) and averaging around 3°C (38°F). Additionally, September has a lower precipitation total of 67 mm (2.6 in) over about 10 days, whereas December sees a marked increase, with 129 mm (5.1 in) of rain spread across 19 days, contributing to a much higher humidity level of 91%. For more specific information about December weather, you can check Arlesheim weather in December.
As September rolls into Arlesheim, the weather presents a unique blend of transitions that set it apart from the preceding summer months. With temperatures ranging from comfortably warm to quite cool, this month signals a shift towards autumn, characterized by the occasional chill in the air and a notable increase in humidity. Rain becomes more frequent, with precipitation on about a third of the days, contributing to a lush landscape. This combination of milder weather and vibrant colors makes September an enchanting time to visit. To dive deeper into the characteristics of Arlesheim's climate, explore more at Arlesheim Climate.