Last updated: August 21, 2025
In September, Chengde, China experiences a delightful transition from summer warmth to early autumn coolness. The maximum temperature can reach around 31°C (88°F), offering plenty of sunshine for outdoor activities, while the average hovers at a comfortable 18°C (64°F). As temperatures dip to a minimum of 3°C (38°F), visitors will notice the crispness in the air, making this a refreshing time to explore the city. Throughout the month, 66 mm (2.6 in) of precipitation typically falls over approximately 6 days, resulting in a humidity level of 75% that adds a lush vibrancy to the region's landscape.
As September arrives in Chengde, China, the warmth of summer begins to fade, ushering in a refreshing transition toward autumn. The temperatures range from a mild minimum of 3°C (38°F) to a comfortable maximum of 31°C (88°F), with an average temperature hovering around 18°C (64°F). This month stands out as the last chance to enjoy the lingering warmth before the colder months set in. With pleasant days and cooler evenings, September offers a perfect blend for outdoor activities and exploring the stunning natural landscapes that surround the city, making it an ideal time to visit.
September in Chengde, China, sees a notable dip in precipitation compared to the summer months, with 66 mm (2.6 in) of rain recorded over 6 days. This decline marks a shift from the intense rainy season, which peaks in July with a staggering 181 mm (7.1 in), and continues through August. The early autumn showers bring a refreshing change, contributing to the region's vibrant transition into fall. As the landscape transforms, the frequency of rainy days begins to lessen, foreshadowing the drier months ahead with October and November receiving considerably less precipitation. Overall, September serves as a bridge between the lush, rain-soaked summertime and the cool, dry autumn, offering a balanced yet dynamic weather pattern for the region.
September experiences a notable shift in humidity in Chengde, China, as the summer's peak mugginess begins to wane. With humidity levels dropping to 75%, this month showcases a decline from the sweltering summer highs of 81% in July and 84% in August. Despite the decrease, September remains relatively humid compared to the cooler months that follow, hinting at the transition into autumn. As the days grow shorter and temperatures dip, humidity levels trend towards a more comfortable range, laying the groundwork for the crisp, refreshing air of October, which settles at 76%. This pattern is indicative of Chengde's climate, where the humid summer gives way to a more temperate atmosphere, setting the stage for the seasonal changes ahead.
As September rolls into Chengde, China, the UV Index settles at 7, categorizing exposure as high. This marks a slight decline from the peak summer months of 10 in July and August, yet it still invites a vigilant approach to sun safety, with a recommended burn time of 25 minutes. The month’s UV intensity encourages outdoor enjoyment while reminding residents and visitors to prioritize sun protection, especially during peak hours. This transition toward lower UV levels continues into October, suggesting a gradual retreat into the milder autumn months. For more detailed insights into UV trends throughout the year, visit Chengde UV Index.
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September is a month of transition in Chengde, China, where the fading summer heat still lingers but begins to give way to the coolness of autumn. This month boasts 287 hours of sunshine, showcasing a slight dip from the vibrant sunlight of the summer months, which peak in May and June with over 330 hours. As the days shorten and fall approaches, the sunshine in September begins to mirror the trend of decreasing daylight seen from October onwards, yet it remains generous compared to the cooler months ahead. This gradual shift from the peak of summer sunshine to the somewhat softer rays of early autumn sets the stage for the beautiful seasonal changes that characterize Chengde's landscape.
In September, the likelihood of sunny weather in Chengde, China, dips to 38%, representing a noticeable decline from the summer months. This trend highlights the shift from the peak of sunshine seen in the earlier months, with July, in particular, experiencing the lowest chance of sun at just 24%. As autumn approaches, the probability of sunny days increases gradually again by October, reaching 60%. This fluctuation underscores the transitional nature of September, often characterized by lingering warmth paired with increased cloud cover as the region moves into fall.
In Chengde, China, the transition from summer to autumn is beautifully marked by the changing daylight hours of September, which offers 12 hours of daylight. This month serves as a gentle step down from the peak of summer, where July basked in 14 hours, and August retained a comfortable 13 hours. As the days gradually shorten, September signals a shift towards the cooler months, soon to embrace the last vestiges of summer light before October and November return to just 11 hours and 9 hours of daylight, respectively. This rhythmic cycle not only highlights the natural progression of the seasons but also invites a deeper appreciation for the temperate transitions, with each hour of sunlight woven into the fabric of Chengde's vibrant landscape.
As September arrives in Chengde, China, the winds start to pick up ever so slightly, with an average speed of 1.7 m/s (4 mph). This marks a subtle increase from the summer lull, where July and August recorded their lowest winds at just 1.8 m/s and 1.5 m/s respectively. The breezy transition into autumn hints at a refreshing change in the air, especially compared to the milder summer months. Looking ahead, October sees a modest rise to 1.9 m/s, suggesting that the region is preparing for the crisper, more invigorating winds that follow in November and December, both returning to 2.5 m/s. Overall, September stands as a gentle prelude to the invigorating winds of fall, embodying a delicate balance between the lingering warmth of summer and the approaching chill of winter.
Weather in Chengde varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Chengde, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is significantly warmer with temperatures ranging from a chilly 3°C (38°F) at night to a pleasant 31°C (88°F) during the day, averaging around 18°C (64°F). This month sees an average of 66 mm (2.6 in) of precipitation over about six days, contributing to a higher humidity level of 75%. In stark contrast, January experiences much colder conditions, with temperatures dropping as low as -25°C (-13°F) and averaging -8°C (18°F). The maximum temperature reaches only 7°C (44°F), and precipitation is minimal, recorded at just 2 mm (0.1 in) over the entire month, resulting in a lower humidity of 55%. For more details on January weather, you can visit Chengde weather in January.
September and February present strikingly different weather patterns. In September, temperatures range from a mild 3°C at night to a warm 31°C during the day, paired with a higher humidity level of 75%. This month typically sees about 66 mm of precipitation over 6 days, contributing to a lush, vibrant atmosphere. In contrast, February brings much colder conditions, with minimum temperatures plummeting to -19°C and an average of -4°C. The month's precipitation is minimal at just 5 mm over 1 day, and humidity drops significantly to 47%, giving February a crisp, dry feel. For more details on February's weather, you can refer to Chengde weather in February.
In September, the weather is generally warm, with average temperatures ranging from a low of 3°C (38°F) to a high of 31°C (88°F). The month experiences significant precipitation, totaling 66 mm (2.6 in) over about six days, coupled with high humidity at 75%. In contrast, March brings a much colder climate, with temperatures ranging from a low of -11°C (13°F) to a maximum of 24°C (75°F) and an average temperature of just 4°C (39°F). March has considerably less rainfall, with only 19 mm (0.7 in) of precipitation over four days, and the humidity is lower at 50%. For more details, you can check Chengde weather in March.
When comparing the weather in September and April, notable differences emerge. September typically showcases a broader temperature range, with minimums around 3°C (38°F) and maximums reaching up to 31°C (88°F), resulting in an average of 18°C (64°F). This month also experiences higher humidity at 75% and more significant rainfall, totaling 66 mm (2.6 in) over approximately six days. In contrast, April presents cooler conditions, with minimum temperatures dipping to -4°C (24°F) and an average of 11°C (52°F). While it can still reach a high of 30°C (86°F), April is generally drier, with only 23 mm (0.9 in) of precipitation occurring over just three days and lower humidity levels at 56%. For more insights on April weather, you can visit Chengde weather in April.
When comparing the weather in September and May, September tends to be warmer overall, with average temperatures reaching 18°C (64°F) and maximums of 31°C (88°F). In contrast, May has a slightly cooler average of 17°C (63°F) but can still reach high temperatures of 34°C (94°F). Precipitation levels are higher in September, with 66 mm (2.6 in) falling over 6 days, whereas May experiences only 27 mm (1.1 in) over about 5 days. Additionally, September has higher humidity at 75%, compared to May's 61%, making the latter month feel a bit drier. For more details, check out Chengde weather in May.
September and June present noticeably different weather patterns. In September, temperatures range from a cooler minimum of 3°C (38°F) to a comfortable average of 18°C (64°F), peaking at a warm 31°C (88°F). The month experiences about 66 mm (2.6 in) of precipitation over 6 days, coupled with a higher humidity level of 75%. In contrast, June is warmer overall, with temperatures starting at a minimum of 6°C (44°F), averaging 22°C (71°F), and reaching a maximum of 36°C (96°F). Precipitation is slightly higher at 69 mm (2.7 in) spread over 10 days, while humidity is a bit lower at 69%. For a closer look at June weather specifics, you can refer to Chengde weather in June.
In comparing the weather of September to that of July, one can observe distinct differences in temperature and precipitation. September sees a broader range of temperatures, with a minimum of 3°C (38°F) and a maximum of 31°C (88°F), averaging around 18°C (64°F). In contrast, July is characterized by warmer conditions, with minimums of 14°C (57°F), an average of 24°C (75°F), and maximums reaching 35°C (95°F). Precipitation levels also differ significantly; September receives about 66 mm (2.6 in) of rainfall over 6 days, while July experiences much heavier rainfall at 181 mm (7.1 in) over 16 days. The humidity is slightly higher in July at 81% compared to 75% in September. For more detailed information on July weather, you can check Chengde weather in July.
In September, the weather cools down significantly compared to August, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 31°C (88°F), and an average of 18°C (64°F). In contrast, August experiences warmer conditions, with minimum temperatures of 9°C (49°F), average temperatures of 23°C (73°F), and a maximum reaching 35°C (95°F). Additionally, September sees less precipitation at 66 mm (2.6 in) over 6 days, while August is quite wet, receiving 137 mm (5.4 in) over 13 days. Humidity levels are also higher in August at 84%, compared to 75% in September. For a detailed look at August weather, check out Chengde weather in August.
In September, the weather is characterized by a warm average temperature of 18°C (64°F), with daytime highs reaching up to 31°C (88°F). This month experiences a moderate level of precipitation, totaling 66 mm (2.6 in) over approximately 6 days, and humidity levels are high at 75%. In contrast, October brings a marked change in temperatures, with average lows dropping to -4°C (25°F) and daytime highs at a still pleasant 27°C (82°F). Rainfall is significantly less in October, with only 24 mm (0.9 in) recorded over 4 days, while humidity increases slightly to 76%. For more detailed insights, you can check out Chengde weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a warm maximum of 31°C (88°F), with an average of 18°C (64°F), making it a generally mild month. With 66 mm (2.6 in) of precipitation over six days and humidity levels at 75%, September feels quite humid and is a transition from the hot summer months.
In stark contrast, November sees a significant drop in temperatures, with a minimum dipping to -13°C (10°F) and an average of just 1°C (34°F). The maximum temperature reaches 19°C (67°F), but the overall chill in the air is palpable. November experiences considerably less rainfall, accumulating only 18 mm (0.7 in) over two days and lower humidity at 61%. For more details, check out Chengde weather in November.
September and December present starkly contrasting weather conditions. In September, temperatures range from a mild 3°C (38°F) at night to a warm 31°C (88°F) during the day, with an average of 18°C (64°F). The month also sees relatively high humidity at 75% and around 66 mm (2.6 inches) of precipitation spread over six days. In contrast, December brings a chill that can drop temperatures to as low as -21°C (-5°F), with a frigid average of -7°C (20°F) and a maximum of only 8°C (46°F). Interestingly, December is much drier, with just 3 mm (0.1 inches) of precipitation over the entire month and no rainy days, coupled with lower humidity at 52%. For more detailed insights, you can check out Chengde weather in December.
As September unfolds in Chengde, the weather presents a delightful transition from the heat of summer to a milder autumn ambiance. With temperatures averaging around 18°C (64°F), the days remain comfortably warm, yet cooler nights remind us of the changing season. This month witnesses a moderate amount of rainfall, marking a shift compared to the drier summer months, with 66 mm of precipitation spread across several days. The increased humidity at 75% adds a refreshing element to the air, creating a crispness that rejuvenates the landscape. For a deeper understanding of what to expect throughout the year, check out the detailed insights on Chengde Climate.