Last updated: August 21, 2025
September in Dayan, China, offers a vibrant transition from the summer heat, with maximum temperatures reaching 32°C (90°F), and an average cool down to 21°C (70°F). Nighttime temperatures can dip to a refreshing 12°C (55°F), providing a comfortable reprieve. The month also brings 159 mm (6.3 in) of rainfall over approximately 17 days, contributing to the lush landscape and invigorating atmosphere. With humidity levels around 70%, visitors can expect a mix of sunny days and refreshing showers, making it a unique time to experience the enchanting beauty of Dayan.
In September, Dayan, China experiences a pleasant transition as summer gives way to autumn. With minimum temperatures around 12°C (55°F) and averages soaring to 21°C (70°F), the month maintains a comfortable warmth before the cooler months set in. The maximum temperatures can reach up to 32°C (90°F), hinting at the lingering heat of summer, yet the slightly reduced night temperatures offer a refreshing respite. This shift not only invites locals and travelers to enjoy outdoor activities amid crisp air but also showcases an overall trend towards milder weather, making September an ideal time to explore Dayan’s picturesque landscapes and cultural heritage.
In September, Dayan, China, experiences a shift in its precipitation patterns, with 159 mm (6.3 in) of rain falling over 17 days. This marks a decrease from the intense rainfall of the summer months, where July and August brought 279 mm and 246 mm respectively, often characterized by nearly three weeks of rain. The reduction in September signals the transition from the peak wet season to a drier autumn, yet it still retains a significant amount of rainfall compared to the cooler months ahead. This gradual tapering of precipitation, alongside the fluctuating number of rainy days, suggests a dynamic climate, where the lushness of summer begins to give way to the crispness of fall in Dayan.
As the seasons transition, September in Dayan brings a noticeable drop in humidity, settling at 70%—the lowest level of the year. This shift marks a refreshing change following the humid summer months, which peaked at 88% in July. While early autumn often maintains the lingering warmth of summer, the declining humidity in September signals the impending arrival of more comfortable conditions. Interestingly, this month serves as a bridge between the sultry summer and the wetter fall months, where humidity levels will gradually rise again, averaging around 77% in October. Thus, September stands out as a pivotal moment of respite, inviting residents and visitors alike to enjoy the crisp air before the humidity levels climb back up.
As summer draws to a close in Dayan, China, September maintains the trend of elevated UV levels, with a UV Index of 11, categorized as extreme. This slight dip from August's peak of 12 doesn’t offer much respite, as the recommended burn time remains brief at just 10 minutes. Over the months, Dayan has experienced a notably high UV Index throughout the summer, starting from 7 in January and peaking at 13 in July. As we transition into the fall, the UV Index will gradually decrease, especially notable in October where it drops to 9. For those planning outdoor activities, awareness of the UV Index is crucial to ensure protection from harmful rays. For more detailed insights, visit the Dayan UV Index.
UV Risk Categories
September in Dayan, China, brings a delightful transition as summer winds down. With an impressive 243 hours of sunshine, the month reflects a slightly lower but still abundant brightness compared to the peak of 307 hours in August. This gentle decline signals the arrival of autumn, with September's sunlight fostering a comfortable warmth that enhances the stunning landscapes. Following a summer of extensive sunlight, the gradual decrease continues into October, highlighting a seasonal shift while still offering nearly 200 hours of sunshine. Overall, September embodies a harmonious blend of lingering summer rays and the cool embrace of fall, inviting both locals and visitors to savor the beauty of Dayan’s changing seasons.
In Dayan, China, the likelihood of sunny weather experiences a notable uptick in September, with a 45% chance of sunshine. This increase comes after a relatively cloudy summer, where the chances hovered between 21% and 25% from June to August. As autumn approaches, September serves as a transitional month, offering a pleasant reprieve from the rainy days of late spring and early summer. Interestingly, this month's sunshine probability is only slightly below January’s 48%, suggesting that September is among the better months for enjoying clear skies. Following September, the chances of sunny weather continue to decline into October at 28%, signaling the shift towards the chillier months ahead.
As summer fades and autumn approaches in Dayan, China, the daylight duration follows a predictable rhythm, peaking in June with a generous 14 hours of sunlight. This month serves as a vibrant transition into the longer days of summer, but by September, daylight begins to recede slightly, measuring 12 hours. September's daylight hours reveal a trend of diminishing light as the year progresses, from the early bloom of 13 hours in July and August, gradually settling into the cozy embrace of autumn with 10 hours by November. This harmonious shift beautifully encapsulates the changing seasons, inviting both reflection and appreciation for the natural cycle.
As September arrives in Dayan, China, the wind subtly shifts, marking a gentle rise in average wind speed to 1.6 m/s (4 mph). This slight increase reflects a transition from the stillness that characterizes the previous summer months, where the wind consistently hovered at 1.5 m/s (3 mph). The onset of autumn not only brings a breath of fresh air but also sets the stage for a gradual escalation in wind speeds, peaking in October at 1.7 m/s (4 mph). This trend highlights the subtle yet notable change in the environment, welcoming cooler breezes that invigorate both the landscape and those who explore it. As the seasons change, so does the dynamic atmosphere of Dayan, inviting residents and visitors alike to embrace the crispness of the air and the beauty of the shifting scenery.
Weather in Dayan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dayan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. September features a warmer climate with temperatures ranging from a mild 12°C (55°F) to a scorching 32°C (90°F), accompanied by an average temperature of 21°C (70°F). This month experiences significant rainfall, totaling 159 mm (6.3 in) spread across 17 days, along with a humidity level of 70%. In contrast, January offers a much cooler atmosphere, with temperatures varying from a frigid -8°C (18°F) to a maximum of 18°C (64°F) and an average of just 3°C (37°F). Precipitation is considerably lower in January at 55 mm (2.2 in) over 9 days, while humidity rises slightly to 74%. For a more detailed look at the January climate, visit Dayan weather in January.
In September, the weather is generally warm, with average temperatures reaching up to 21°C (70°F) and highs soaring to 32°C (90°F), making it a comfortable month for outdoor activities. However, it also features relatively high precipitation, with 159 mm (6.3 in) falling over 17 days, contributing to a humidity level of 70%. In contrast, February presents a much cooler climate, where the average temperature dips to around 5°C (41°F), with nights potentially falling below freezing at a minimum of -6°C (21°F). Despite this chill, February experiences significantly lower rainfall, totaling just 66 mm (2.6 in) over 10 days, although humidity remains high at 77%. For more detailed insights into February's weather, you can refer to Dayan weather in February.
September and March present quite distinct weather characteristics, making each month unique in its appeal. In September, temperatures exhibit a broad range from a cool minimum of 12°C (55°F) to a warm maximum of 32°C (90°F), averaging around 21°C (70°F), while experiencing relatively high humidity at 70%. The month also sees significant rainfall, totaling 159 mm (6.3 in) over approximately 17 days. Conversely, March greets us with a cooler atmosphere, dipping to a minimum of 0°C (33°F) and providing a maximum of 26°C (80°F), with an average of 10°C (50°F). Although it has a slightly lower precipitation level of 118 mm (4.6 in) over 15 days, March's humidity is notably higher at 87%. These contrasts highlight how September is generally warmer and wetter compared to the cooler and relatively drier conditions of March. For more details about weather patterns in March, check out Dayan weather in March.
September and April present distinct climatic contrasts. In September, temperatures range from a mild 12°C (55°F) at night to a warm 32°C (90°F) during the day, with an average of 21°C (70°F). The month is quite humid, with levels around 70%, and sees about 159 mm (6.3 in) of precipitation over approximately 17 days. In contrast, April experiences cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 30°C (86°F), averaging 14°C (58°F). Despite having slightly more precipitation at 160 mm (6.3 in) over 16 days, the humidity is higher at 85%. For a more detailed look at April's climate, you can visit Dayan weather in April.
In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 32°C (90°F), with an average temperature of 21°C (70°F). The month experiences 159 mm (6.3 in) of precipitation over 17 days and has a humidity level of 70%. In contrast, May sees slightly cooler temperatures, with a minimum of 9°C (48°F) and an average of 19°C (66°F), while still reaching a maximum of 32°C (90°F). However, May is wetter, with 220 mm (8.7 in) of rainfall over 16 days and a higher humidity level of 82%. For more detailed insights, you can visit Dayan weather in May.
September and June exhibit quite comparable weather patterns, though September tends to be slightly cooler overall. In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 32°C (90°F), with an average of 21°C (70°F). Meanwhile, June shows slightly higher temperatures, with a minimum of 14°C (58°F) and a maximum of 33°C (92°F), averaging at 22°C (72°F). Precipitation is notably higher in June, totaling 289 mm (11.4 in) over 19 days, compared to September's 159 mm (6.3 in) over 17 days. Additionally, humidity levels are higher in June at 84%, compared to 70% in September, suggesting a more humid atmosphere during the earlier summer month. For more detailed insights on June weather specifically, visit Dayan weather in June.
In comparing the weather between September and July, September tends to be cooler with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 32°C (90°F) and an average of 21°C (70°F). It also experiences notable rainfall, with 159 mm (6.3 in) of precipitation over about 17 days and a humidity level of 70%. In contrast, July showcases warmer temperatures, with a minimum of 17°C (63°F), an average of 25°C (77°F), and a peak of 35°C (95°F). It is also the wetter month, receiving 279 mm (11.0 in) of rain across 23 days, accompanied by higher humidity at 88%. For more detailed insights about July weather in Dayan, you can visit Dayan weather in July.
In comparing the weather of September and August, September tends to be slightly cooler overall, with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 32°C (90°F), compared to August's higher averages of 16°C (61°F) to 35°C (95°F). While September sees a significant drop in precipitation to 159 mm (6.3 in) over 17 days, August experiences heavier rainfall with 246 mm (9.7 in) spread across 23 days. Additionally, humidity levels are higher in August at 84%, compared to September's moderate 70%. For a more detailed look at August's weather specifics, you can visit Dayan weather in August.
As September transitions into October, there is a notable shift in the weather patterns. September experiences warmer temperatures, with a minimum of 12°C (55°F) and an average high of 32°C (90°F), while October sees cooler temperatures, dropping to a minimum of 6°C (43°F) and an average high of 31°C (88°F). Additionally, September is characterized by higher precipitation levels, with 159 mm (6.3 in) recorded over 17 days, compared to October's 104 mm (4.1 in) over just 11 days. Humidity also rises slightly in October, averaging 77% compared to September's 70%. For a detailed look at the weather in October, visit Dayan weather in October.
September and November present a stark contrast in weather conditions. In September, temperatures range from a mild 12°C (55°F) at night to a warm 32°C (90°F) during the day, with an average of 21°C (70°F). The month is characterized by significant rainfall, totaling 159 mm (6.3 in) over 17 days, and a humidity level of 70%. In contrast, November experiences much cooler weather, with temperatures dipping down to 0°C (33°F) at night and peaking at 23°C (73°F) during the day, averaging around 10°C (51°F). Precipitation decreases significantly to 66 mm (2.6 in) across 11 days, while humidity rises to 84%. For more details, you can visit Dayan weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a mild 12°C (55°F) at night to a warm 32°C (90°F) during the day, accompanied by significant precipitation of 159 mm (6.3 in) over 17 days and a humidity level of 70%. In contrast, December sees much colder temperatures, with a minimum of -7°C (21°F) and a maximum of 16°C (61°F), while precipitation drops to 40 mm (1.6 in) across just 9 days, though humidity rises to 80%. For a more detailed look at December weather in Dayan, you can visit Dayan weather in December.
As summer transitions to autumn in Dayan, September presents a unique climate profile distinct from the other months. The maximum temperatures are moderately high, offering a warm embrace during the day, while the nights cool down considerably, creating a pleasant contrast. With an average of 17 rainy days, precipitation is more frequent compared to the drier months of summer, contributing to the lush greenery that characterizes this time of year. Additionally, the humidity levels hover around 70%, adding to the perception of warmth before the cooler months set in. This change not only highlights the beauty of September but also sets the stage for the refreshing fall season ahead. For further details, explore Dayan Climate.