Last updated: August 27, 2025
Experience the charm of Stadt Winterthur (Kreis 1) in September, where temperatures can soar to a maximum of 29°C (84°F), providing warm and inviting days. The average temperature hovers around a comfortable 15°C (59°F), while nighttime dips can descend to a refreshing minimum of 3°C (38°F). This month also brings a moderate precipitation of 84 mm (3.3 in) over approximately 11 days, contributing to the area's lush landscapes. With an elevated humidity level of 83%, the atmosphere can feel both warm and crisp, making September a unique blend of summer's end and autumn's whisper in the picturesque Swiss town.
As September graces Stadt Winterthur, it marks the transition from the summer's warmth to the cool embrace of autumn. With temperatures ranging from a mild 3°C (38°F) at night to a delightful 29°C (84°F) during the day, the month presents a refreshing blend of summer's lingering heat and the crispness of approaching fall. The average temperature rests at a comfortable 15°C (59°F), making it an ideal time for outdoor activities and enjoying the vibrant seasonal changes. This gradual cooling trend signals a shift, as the previous months displayed sweltering highs, particularly in July and August, where temperatures soared past 30°C (86°F). As the city prepares for October, the warmth of September serves as a beautiful final homage to summer before the chill of autumn sets in.
In September, Stadt Winterthur experiences a moderate precipitation level of 84 mm (3.3 in) spread over 11 days. This amount marks a slight decrease compared to the wetter months of May and June, which see totals of 123 mm and 138 mm respectively. As summer transitions into autumn, September's precipitation aligns with the overall trend of variable rainfall in the region, echoing the patterns of July and August while remaining generally consistent with an average month. As the year progresses toward October, the precipitation levels hint at the impending increase, with October recorded at 94 mm (3.7 in). This gradual shift signals a step into the wetter part of the year, showcasing the dynamic climate that characterizes Winterthur’s seasonal transition.
In September, Stadt Winterthur experiences a noticeable shift in humidity, with levels averaging around 83%. This slight increase from the summer months reflects a transition toward the wetter conditions often seen in autumn. Humidity peaks in the winter months, with January and October both reaching 90%, suggesting that September serves as a bridge between the drier summer air and the moisture-laden months that follow. Overall, while September's humidity remains relatively high, it marks a subtle decrease from the peak summer averages, leading residents to feel the early whispers of the impending fall season.
As September rolls into Stadt Winterthur (Kreis 1), Switzerland, the UV Index settles at 6, categorizing the exposure as high and recommending a burn time of approximately 25 minutes. This marks a transition from the peak summer months, where July and August boasted a UV Index of 9, indicating very high exposure risk. Post-summer, the UV Index begins to taper off, signaling a shift towards milder sun conditions. However, vigilance is still necessary, as early autumn can still yield potent UV rays. For more detailed insights on UV levels throughout the year, explore the full Stadt Winterthur (Kreis 1) UV Index.
UV Risk Categories
As September rolls into Stadt Winterthur (Kreis 1), the city basks in the warmth of 316 hours of sunshine, marking a delightful transition from the vibrant summer months. This is a noticeable drop from the sun-soaked peak of 406 hours in July, yet it still outshines the more muted tones of the upcoming autumn months, particularly October’s 266 hours. The sun-soaked days of late summer offer an inviting atmosphere, perfect for outdoor activities and enjoying the last waves of warm weather before winter begins to descend. Strikingly, September maintains a respectable brightness compared to earlier months like November (195 hours) and December (165 hours), showcasing the enduring charm of autumn in this picturesque Swiss locale.
In September, the likelihood of sunny weather in Stadt Winterthur (Kreis 1) shows a promising 45% chance, aligning with the overall upward trend of spring and summer months. Following a slightly turbulent summer, where sunshine chances fluctuated around 33% to 38%, September stands out as a month where clear skies become increasingly possible. This trend of better weather is a delightful reminder that as the landscape begins to shift into autumn, there's still ample opportunity to bask in the sun before the chill of winter sets in. Enjoy the golden light of September, as it offers one of the year's more favorable chances for sunny days!
In Stadt Winterthur (Kreis 1), Switzerland, September marks a gentle transition as daylight begins to wane from the long summer days. With 12 hours of daylight, this month reflects a gradual decline from the peak of 15 hours experienced in June, July, and August. As we shift from summer's embrace into autumn, the decrease in sunlight signals nature's preparation for the cooler months ahead. Interestingly, after September, daylight continues to shrink, tapering off to 10 hours in October and a mere 8 hours by December. This rhythm of increasing and decreasing daylight is not just a shift in hours but a reminder of the cyclical beauty of the seasons in Winterthur.
As summer wanes in Stadt Winterthur (Kreis 1), September greets the region with a gentle breath of air, witnessing an average wind speed of 1.7 m/s (4 mph). This marks a notable decline from the higher gusts of spring and early summer, where winds averaged around 2.8 m/s (6 mph) in May. The trend indicates a gradual softening, as September's breezes become among the calmest of the year, setting the stage for the cooler months ahead. Interestingly, while late autumn sees a slight uptick to 2.0 m/s in November, the overall pattern suggests that September is indeed a transition month, where the lively winds of summer yield to a more serene atmosphere, inviting residents and visitors alike to savor the late summer's lingering warmth.
Weather in Stadt Winterthur (Kreis 1) varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Stadt Winterthur (Kreis 1), focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January in Winterthur present a striking contrast in weather. September enjoys milder temperatures, with averages around 15°C (59°F) and highs reaching up to 29°C (84°F), while January experiences much colder conditions, averaging around 1°C (34°F) with lows dropping to -13°C (9°F). Precipitation is slightly higher in January at 97 mm (3.8 in) compared to September's 84 mm (3.3 in), though both months see precipitation on roughly the same number of days—11. Additionally, January's humidity of 92% is notably higher than September's 83%, making the winter month feel even chillier. For more detailed insights into January weather, visit Stadt Winterthur (Kreis 1) weather in January.
September and February present notably different weather patterns. In September, temperatures range from a mild 15°C (59°F) on average, peaking at 29°C (84°F), while in February, the average drops to a chilly 3°C (38°F), with maximum temperatures reaching only 18°C (65°F). Precipitation is slightly higher in September at 84 mm (3.3 in), occurring over 11 days, compared to February's 75 mm (3.0 in) spread across 12 days. Humidity levels also differ, rising from 83% in September to a higher 89% in February, making the colder month feel quite damp. For a more detailed view of February's weather, check out Stadt Winterthur (Kreis 1) weather in February.
In September, the weather typically features a mild temperature range with a minimum of 3°C (38°F) and a maximum reaching up to 29°C (84°F), averaging around 15°C (59°F). The month experiences a relatively high humidity level of 83%, along with about 84 mm (3.3 in) of precipitation spread over 11 days. In contrast, March presents a much colder climate, where temperatures can drop as low as -12°C (11°F) and peak at a maximum of 20°C (69°F), with an average of 6°C (43°F). This month sees slightly more precipitation at 86 mm (3.4 in) over 14 days and a higher humidity level of 87%. The significant temperature difference and the increase in cold, wet days highlight the transition from the warm end of summer to the still chilly spring. For more details, visit Stadt Winterthur (Kreis 1) weather in March.
In comparing the weather between September and April, we observe notable differences in temperature and precipitation. September is characterized by a milder temperature range, with minimums around 3°C (38°F) and maximums reaching up to 29°C (84°F), while April experiences cooler minimums of -4°C (25°F) and a maximum of 26°C (79°F). Precipitation levels also vary, with September receiving 84 mm (3.3 in) over 11 days, compared to April's 63 mm (2.5 in) over 9 days. Interestingly, both months exhibit similar humidity levels, hovering around 83% in September and 84% in April. For more specific weather conditions in April, you can visit Stadt Winterthur (Kreis 1) weather in April.
When comparing the weather in September and May, several notable differences emerge. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 15°C (59°F) and humidity levels at around 83%. The month also receives about 84 mm (3.3 in) of precipitation, typically over 11 days. Conversely, May experiences a wider temperature range, with a minimum of -2°C (28°F) and a maximum of 30°C (87°F), along with an average temperature of 13°C (56°F). It also has higher precipitation levels, totaling 123 mm (4.9 in) across 17 days, while experiencing slightly lower humidity at 80%. For more detailed information on May weather, you can visit Stadt Winterthur (Kreis 1) weather in May.
When comparing the weather in September and June, notable differences emerge in temperature and precipitation. September experiences a minimum temperature of around 3°C (38°F) and an average of 15°C (59°F), while June starts slightly warmer with a minimum of 5°C (42°F) and an average of 18°C (65°F). The maximums also reflect this trend, with September reaching 29°C (84°F) compared to June's warmer high of 33°C (92°F). In terms of precipitation, June is wetter, accumulating about 138 mm (5.4 in) over 14 days, whereas September sees less rainfall at 84 mm (3.3 in) over 11 days. Both months exhibit similar humidity levels, hovering around 82% to 83%. For more detailed insights into June weather, you can check Stadt Winterthur (Kreis 1) weather in June.
In comparing the weather of September and July, we observe notable differences in temperature and precipitation. September experiences a broader temperature range with a minimum of 3°C (38°F) and a maximum of 29°C (84°F), resulting in an average temperature of 15°C (59°F). In contrast, July is warmer with a minimum of 8°C (47°F), an average of 20°C (68°F), and a maximum of 36°C (96°F). Precipitation levels are slightly higher in July at 92 mm (3.6 in) over 14 days, compared to September's 84 mm (3.3 in) spread over 11 days. Both months share a humidity level of 83%, contributing to a muggy atmosphere. For more details on July weather, you can visit Stadt Winterthur (Kreis 1) weather in July.
In September, the weather cools down significantly compared to August, with minimum temperatures dropping to 3°C (38°F) and average temperatures around 15°C (59°F), compared to a warmer 8°C (46°F) minimum and an average of 19°C (67°F) in August. The maximum temperature also sees a decrease, peaking at 29°C (84°F) in September, while August reaches a sweltering 35°C (95°F). Additionally, September experiences more consistent rainfall, totaling 84 mm (3.3 in) over 11 days, compared to 114 mm (4.5 in) over 12 days in August. Humidity remains relatively high in both months, with September slightly higher at 83% compared to August's 80%. For more details on August weather, check out Stadt Winterthur (Kreis 1) weather in August.
September and October exhibit distinct weather patterns, reflecting the transition from late summer to autumn. In September, temperatures range from a minimum of 3°C (38°F) to a comfortable maximum of 29°C (84°F), with an average of 15°C (59°F). The month sees about 84 mm (3.3 in) of precipitation over 11 days and maintains a humidity level of 83%. In contrast, October brings cooler temperatures, with a minimum dipping to -1°C (31°F) and a maximum of 23°C (73°F), resulting in an average of 10°C (51°F). This month also experiences slightly higher precipitation at 94 mm (3.7 in) over 12 days, alongside an increase in humidity to 90%. For a more detailed look at the weather dynamics, you can refer to Stadt Winterthur (Kreis 1) weather in October.
September and November present quite different weather conditions. In September, the average temperature is a comfortable 15°C (59°F), with highs reaching up to 29°C (84°F), while nighttime temperatures drop to a minimum of 3°C (38°F). The month sees an average precipitation of 84 mm (3.3 in) over approximately 11 days, and the humidity hovers around 83%.
In contrast, November experiences cooler temperatures, with an average of 5°C (41°F), minimums dipping to -3°C (26°F), and maximums around 20°C (69°F). Precipitation decreases slightly to 62 mm (2.5 in) across the same number of days, though humidity rises to 88%. This shift marks November as a distinctly chillier and damp month compared to the mild and warmer September. For more detailed insights, visit Stadt Winterthur (Kreis 1) weather in November.
September and December present contrasting weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a comfortable maximum of 29°C (84°F), with an average of 15°C (59°F). The month experiences about 84 mm (3.3 in) of precipitation over 11 days, accompanied by a humidity level of 83%. Conversely, December ushers in colder conditions, with temperatures dipping to a minimum of -8°C (19°F) and an average of 3°C (37°F), reaching a maximum of 14°C (57°F). Precipitation increases to 121 mm (4.8 in) spread over 18 days, and humidity rises slightly to 90%. For more specific information on December weather, visit Stadt Winterthur (Kreis 1) weather in December.
As September ushers in the transition to autumn, Stadt Winterthur (Kreis 1) experiences a noticeable shift in weather patterns. The days can still enjoy the remnants of summer warmth, with peaks reaching up to 29°C, while the nights can drop quite a bit cooler, hinting at the approaching chill of fall. This month sees increased rainfall, with approximately 11 days of precipitation, contributing to an air full of 83% humidity. Compared to the vibrant heat of summer, September brings a blend of warmth and freshness that makes it a unique and refreshing time of year. For a deeper dive into the climate nuances of this charming Swiss city, check out Stadt Winterthur (Kreis 1) Climate.