Last updated: August 21, 2025
In September, Yancheng, China experiences a transition into autumn with an average temperature of 14°C (58°F), peaking at a maximum of 28°C (82°F) and dipping to a minimum of 2°C (35°F). This month sees about 60 mm (2.4 in) of rainfall spread across 9 days, contributing to a notable 57% humidity level. As the warm summer days give way to cooler evenings, September presents a unique blend of weather patterns for residents and visitors alike, ideal for enjoying the region's natural beauty.
In September, Yancheng, China, begins to shed the summer's heat, ushering in a transition towards cooler autumn days. With average temperatures around 14°C (58°F), the city experiences a gradual decline from the previous months. The minimums hover at a crisp 2°C (35°F), while the highs can reach a comfortable 28°C (82°F), making it an ideal time for outdoor activities. This month marks a clear shift from the lingering warmth of August, as the refreshing fall breezes sweep through, setting the stage for the cooler months ahead. As nature prepares to don its autumn hues, September in Yancheng is a delightful blend of warm days and cool evenings.
In September, Yancheng experiences a notable shift in precipitation patterns, with 60 mm (2.4 in) of rain falling over an average of 9 days. This marks a decrease from the intense summer months of July and August, which saw 150 mm (5.9 in) and 135 mm (5.3 in), respectively. The rainfall in September signifies a transition towards autumn, providing essential moisture as the region prepares for cooler weather. Compared to the earlier months of the year, September’s precipitation is moderate, hinting at a more balanced climate as the city moves further into the fall season. This trend of declining rainfall from the summer peaks suggests a gradual easing of summer's grip, welcoming the crispness of autumn.
In September, Yancheng, China experiences a moderate humidity level of 57%, marking a subtle transition as summer's warmth begins to wane. This month stands out as a point of stability, nestled between the higher humidity of August at 61% and the impending autumnal spike, with October rising to 67%. Throughout the year, humidity in Yancheng fluctuates, peaking in the cooler months of late autumn while dipping to its low in May at 49%. Notably, the summer months maintain a relatively consistent level, but September offers a refreshing reprieve as the city prepares for the cooler air ahead, showcasing the dynamic shifts in Yancheng's climate as it dances between the warmth of summer and the crispness of autumn.
September in Yancheng, China marks a transition as summer begins to wane, yet the UV Index remains notably high at 8, placing it within the very high exposure category. With a burn time of just 15 minutes, it's crucial for residents and visitors to remain cautious and apply sunscreen regularly during outdoor activities. This month reflects a slight decrease from the peak summer months of June through August, where the UV Index hit an extreme 11, indicating a persistent trend of elevated UV radiation during the warm season. As we move into the fall, the UV Index will continue to decline, yielding safer sun exposure in the upcoming months. For detailed information on UV levels throughout the year, visit Yancheng UV Index.
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September in Yancheng, China, offers a delightful continuation of the summer's warmth with 286 hours of sunshine. As the year transitions, September marks a slight dip from the peak of 346 hours in July, yet it still shines brighter than the winter months, where the sunlight dips below 270 hours. This month captures the essence of late summer, where the days are still long and the air holds onto remnants of warmth. As the seasons shift, sunshine hours gradually decrease, leading into the cooler months, but September remains a cherished time for outdoor activities and enjoying the lingering brightness.
In Yancheng, China, the likelihood of sunny weather often follows a fluctuating pattern throughout the year. As we transition into September, the chance of sunshine drops to a modest 46%, reflecting a noticeable decline from the vibrant days of summer. This reduction is part of a broader trend, revealing that as the year progresses into the fall months, the probability of sun typically declines, following peaks in winter and early spring months. As the warm embrace of summer wanes, September's sun-kissed days become a delightful yet rare occurrence, urging residents and visitors alike to seize the moment whenever the sun decides to shine.
In Yancheng, China, the rhythm of daylight ebbs and flows throughout the year, showcasing a clear seasonal progression. As September arrives, daylight gradually wanes to 12 hours, following the summertime peak of 14 hours in June, July, and August. This transition marks a shift from the longer, sun-drenched days of summer to the shorter days of autumn. The month of September is a beautiful intermediary, where the lingering warmth of summer starts to blend with the cooler air of fall, creating a soft contrast in the length of daylight. Following September, daylight further decreases to 11 hours in October, gently ushering in the seasonal change towards winter.
As the summer heat begins to wane, September's winds in Yancheng offer a gentle transition into the cooler months. With an average wind speed of 2.4 m/s (5 mph), the breezes this month mirror those of the preceding August, suggesting a subtle stability in airflow as the city shifts into autumn. This slight decline from the springtime averages, which peak around 3.9 m/s (9 mph) in May, reflects a seasonal easing, inviting moments of calm to the landscape. October maintains this tranquil tempo, highlighting a consistent trend in Yancheng's late-year weather, where the winds gradually regain a bit of vigor as winter approaches.
Weather in Yancheng varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Yancheng, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather conditions. In September, temperatures range from a mild 2°C (35°F) at night to a warm 28°C (82°F) during the day, with an average of 14°C (58°F). This month experiences around 60 mm (2.4 inches) of precipitation over 9 days, and humidity levels hover at 57%. In stark contrast, January sees a significant drop in temperatures, with lows plummeting to -28°C (-18°F) and highs only reaching a maximum of 6°C (43°F), averaging at -10°C (15°F). This winter month is much drier, with just 4 mm (0.2 inches) of precipitation, occurring on only 1 day, while humidity remains the same at 57%. For more details, you can visit Yancheng weather in January.
In September, temperatures range from a cool 2°C (35°F) at night to a warm 28°C (82°F) during the day, with an average of 14°C (58°F). The month tends to be relatively wet, experiencing about 60 mm (2.4 in) of rainfall over 9 days, while humidity hovers around 57%. In contrast, February presents a much harsher climate, with temperatures plummeting to a minimum of -25°C (-12°F) and an average temperature of -6°C (22°F), peaking at just 13°C (56°F). This colder month sees minimal rainfall at 8 mm (0.3 in) over just 1 day, and humidity remains slightly lower at 56%. For a deeper dive into February weather specifics in Yancheng, check out Yancheng weather in February.
September and March showcase notable contrasts in weather conditions. In September, temperatures range from a cool 2°C (35°F) at night to a warm 28°C (82°F) during the day, with an average temperature of 14°C (58°F). The month experiences around 60 mm (2.4 in) of precipitation spread over 9 days, alongside a relative humidity of 57%. In contrast, March presents much colder weather, with temperatures dipping as low as -14°C (7°F) at night while peaking at a moderate 21°C (71°F) during the day, leading to an average of just 2°C (37°F). This month sees less precipitation, totaling 25 mm (1.0 in) over only 5 days, and slightly lower humidity at 54%. For more detailed insights, you can check Yancheng weather in March.
In comparing the weather of September and April, we see notable differences in temperature and precipitation. September typically enjoys milder temperatures, ranging from a minimum of 2°C (35°F) to a maximum of 28°C (82°F) with an average of 14°C (58°F). In contrast, April experiences cooler temperatures, with a minimum of -7°C (19°F) and an average of 8°C (47°F), peaking at 25°C (77°F). Precipitation is also varied; September has about 60 mm (2.4 in) over 9 days, while April has a lower total of 37 mm (1.5 in) spread across 6 days. Additionally, April tends to be slightly more humid at 64% compared to September’s 57%. For more insights, you can check out Yancheng weather in April.
September and May exhibit a range of weather differences despite their similar average temperatures. September has a wider temperature range, with minimums around 2°C (35°F) and maximums reaching 28°C (82°F), while May can drop as low as -2°C (29°F) but peaks at a slightly higher 30°C (86°F). The amount of precipitation is also notable; September experiences more rain with 60 mm (2.4 in) over 9 days, compared to May's 40 mm (1.6 in) spread over just 5 days. Additionally, humidity levels are higher in September at 57%, while May maintains a lower humidity level of 49%. For those interested in a detailed overview, check out Yancheng weather in May.
In comparing the weather of September and June, we see notable differences in temperatures and precipitation patterns. September experiences cooler temperatures with a minimum of 2°C (35°F) and an average of 14°C (58°F), while June boasts warmer conditions with a minimum of 6°C (43°F) and an average of 19°C (66°F). The maximum temperatures also reflect this trend, reaching 28°C (82°F) in September compared to a hotter 31°C (88°F) in June. Both months have similar levels of precipitation, with September receiving 60 mm (2.4 in) over 9 days and June slightly higher at 63 mm (2.5 in) over 8 days. Interestingly, humidity levels remain constant in both months at 57%. For a closer look at June's weather specifics, check Yancheng weather in June.
In comparing the weather of September and July, we see notable differences in temperature and precipitation. September experiences cooler temperatures, with a minimum of 2°C (35°F), averaging 14°C (58°F), and a maximum of 28°C (82°F), while July is much warmer, with a minimum of 9°C (49°F), an average of 20°C (69°F), and a maximum of 31°C (89°F). Precipitation is more significant in July, with 150 mm (5.9 in) recorded over 14 days, compared to September's 60 mm (2.4 in) over just 9 days. Humidity levels remain similar, with September at 57% and July at 58%. For more detailed information on July weather, check out Yancheng weather in July.
In comparing the weather between September and August, September presents cooler temperatures, with a minimum of 2°C (35°F) and an average of 14°C (58°F), while August boasts higher temperatures, featuring a minimum of 7°C (45°F) and an average of 19°C (66°F). Additionally, August experiences more rainfall, with 135 mm (5.3 in) over 13 days, compared to September's 60 mm (2.4 in) over 9 days. Humidity levels are also slightly higher in August at 61%, compared to September's 57%. For a detailed look at August weather patterns, you can visit Yancheng weather in August.
September and October present a noticeable shift in weather patterns. September boasts a milder average temperature of 14°C (58°F) and experiences warmer highs of up to 28°C (82°F). In contrast, October’s average temperature drops to 6°C (44°F), with minimum temperatures plummeting to -6°C (21°F). While both months see similar precipitation levels—with 60 mm (2.4 in) in September and 57 mm (2.3 in) in October—October tends to feel wetter with an increase in humidity to 67%. This transition marks a significant change as the landscape prepares for the chillier air of late autumn. For those interested in more detailed information, check out Yancheng weather in October.
September and November present starkly contrasting weather conditions. In September, temperatures range from a mild 2°C (35°F) at night to a warm 28°C (82°F) during the day, with an average of 14°C (58°F). This month also sees a moderate level of precipitation at 60 mm (2.4 in) over 9 days, along with a comfortable humidity of 57%. In contrast, November experiences a significant drop in temperatures, with nighttime lows plummeting to -17°C (1°F) and an average of -1°C (31°F), while daytime highs reach a maximum of 14°C (58°F). The colder month has much less precipitation, totaling only 18 mm (0.7 in) over just 3 days, accompanied by slightly higher humidity at 64%. For more details about the weather in November, you can visit Yancheng weather in November.
The weather in September is characterized by a warm average temperature of 14°C (58°F), with daytime highs reaching up to 28°C (82°F) and minimal precipitation of 60 mm (2.4 in) spread across 9 days, resulting in a relatively comfortable humidity level of 57%. In stark contrast, December sees a significant drop in temperature, with an average of -9°C (16°F) and nightly lows dipping as low as -25°C (-13°F). This month experiences much drier conditions, with only 4 mm (0.2 in) of precipitation over the entire month, and no recorded rainy days, although humidity levels rise slightly to 66%. For more detailed information, check out Yancheng weather in December.
As the summer heat fades away, September in Yancheng offers a refreshing transition with its temperate climate. The average temperatures provide a pleasant balance, setting the stage for cooler evenings and mild days, making it ideal for outdoor activities. Compared to the sweltering heat of summer, September’s humidity levels drop slightly, offering relief, although precipitation remains a factor, with a handful of rainy days. Overall, this month serves as a gentle prelude to autumn, showcasing nature’s beauty as it begins to shift. For a comprehensive overview of what to expect throughout the year, visit Yancheng Climate.