Last updated: August 21, 2025
September in Changzhou, China presents a warm climate, with maximum temperatures reaching up to 36°C (97°F) and an average of 29°C (84°F). The month sees a notable minimum temperature of 21°C (71°F), making it quite comfortable during evenings. However, residents and visitors should be prepared for the high humidity levels at around 75%, which can make the heat feel more intense. Rainfall is prevalent, with 207 mm (8.1 in) of precipitation recorded over 21 days, ensuring that September remains an essential month for greenery in this vibrant city.
September in Changzhou, China, continues the trend of warm late-summer days, with minimum temperatures around 21°C (71°F) and peak averages reaching 29°C (84°F). As the month progresses, the city enjoys a gentle transition, with daytime highs maintaining a maximum of 36°C (97°F), although they're cooler than the searing peak of August. This month offers a delightful blend of residual warmth before autumn sets in, allowing residents and visitors alike to experience mild evenings and ample sunshine. The overall trend indicates a gradual decline in temperature, setting the stage for more temperate October.
In September, Changzhou experiences a notable shift in weather patterns, with precipitation averaging 207 mm (8.1 in) over 21 rainy days. This marks a significant decrease from the previous month's substantial rainfall of 327 mm (12.9 in), indicating a gradual tapering off of the summer monsoon. As the city transitions into autumn, the rainfall diminishes but still provides a robust delivery of moisture, ideal for late-season vegetation. Notably, this month serves as a bridge between the intense summer deluge and the drier fall months ahead, with October projected to receive a mere 96 mm (3.8 in). The rainfall trend throughout the year highlights a peak in June, followed by a gradual decline, encapsulating the dynamic climate of Changzhou.
In September, Changzhou experiences a notable shift in humidity, which settles at 75%—a marked decrease from the sultry heights of 88% recorded in both July and August. As summer transitions to autumn, the air begins to dry out, reflecting a common trend in the region where humidity peaks during the peak monsoon months before tapering off. This gradual decline continues into October, where humidity levels drop further to 65%, suggesting a refreshing break from the intense summer stickiness. Overall, September serves as a transitional month, bridging the hot, humid summer with the milder, drier conditions of fall.
As September rolls into Changzhou, China, residents can expect a UV Index of 12, signaling an extreme level of sun exposure with a burn time of just 10 minutes. This trend marks a slight decrease from the peak of 13 in the summer months, yet it remains crucial to take precautions. Although the relentless heat of July and August might be behind us, the sun is still fierce enough to necessitate protective measures. The UV Index typically begins to wane in October, dropping to 10, but September serves as a reminder that caution is still needed as the summer's intensity lingers. For more detailed information on UV levels throughout the year, check Changzhou UV Index.
UV Risk Categories
As summer gives way to autumn, September in Changzhou, China, boasts an impressive 272 hours of sunshine, matching the previous month's brilliance. This sunny stretch marks a peak period in the year, following July's high of 302 hours, and indicates a consistent trend of ample sunlight during the late summer months. The transition into fall still bathes the city in warmth, allowing for a seamless blend of lingering summer joy with the crisp beginnings of autumn. As daylight gradually diminishes in October, which records 267 hours of sunshine, the vibrant hues of Changzhou's landscapes entice residents and visitors alike. This continuity of bright days underscores the city's charm, inviting leisurely outdoor activities and a celebration of nature’s changing palette.
September in Changzhou, China, brings a noteworthy 42% chance of sunny weather, making it one of the more promising months for sun enthusiasts. After the summer's dip in sunshine, which sees a stark low of just 10% in June and 14% in August, September offers a refreshing transition into early autumn. This month stands out in contrast to the wetter summer months, and while it doesn't quite reach the heights of winter months like January and November, it serves as a pleasant reprieve with a moderate likelihood of clear skies. As the seasons shift, residents and visitors alike can enjoy a unique blend of sunlight and cooler temperatures, setting the stage for a delightful September in Changzhou.
As September arrives in Changzhou, China, daylight hours begin to transition from the summer abundance to the more subdued autumn days. With 12 hours of daylight, September maintains the same generous light as August, reflecting the gradual shift towards shorter days that starts in October. This pattern showcases a gentle tapering of daylight, as the city enjoys the lingering warmth and extended evenings of summer, only to see them gradually dwindle in the coming months. The daylight duration in September exemplifies a stabilizing trend, where the days remain bright yet foreshadow the cozy embrace of autumn that lies ahead.
As September arrives in Changzhou, the city's gentle breezes start to taper off, reaching an average wind speed of just 1.6 m/s (4 mph). This marks a notable decline from the earlier months, where the wind maintained a more robust presence, averaging around 2.5 to 2.7 m/s (6 mph) from April to May. The transition into autumn brings a sense of calm, with September often feeling stiller than its preceding summer months. Interestingly, this lull is soon contrasted by October's resurgence, where wind speeds pick up significantly, hitting an average of 3.4 m/s (8 mph), suggesting a dynamic shift as the season progresses. Overall, September serves as a bridge between the lively summer breezes and the more invigorating winds of fall, encapsulating a moment of serene transition in Changzhou's atmospheric rhythm.
Weather in Changzhou varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Changzhou, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is significantly warmer, with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 36°C (97°F) and an average of 29°C (84°F). The month experiences considerable rainfall, totaling 207 mm (8.1 in) over approximately 21 days, accompanied by high humidity at 75%. In contrast, January brings much cooler temperatures, with a minimum of 4°C (39°F), an average of 16°C (62°F), and a maximum reaching 28°C (83°F). The precipitation in January is much lighter, totaling only 26 mm (1.0 in) over about 3 days, and the humidity is lower at 64%. For a detailed look at January conditions, you can explore Changzhou weather in January.
September and February present a striking contrast in weather patterns. In September, temperatures are significantly warmer, with averages around 29°C (84°F) and highs reaching up to 36°C (97°F), accompanied by high humidity levels at 75%. However, this month also sees considerable rainfall, totaling 207 mm (8.1 in) over 21 days. In contrast, February boasts much cooler temperatures, with an average of 17°C (62°F) and maximums reaching 29°C (85°F), along with a much lower precipitation level of 58 mm (2.3 in) over just 8 days. Humidity also drops slightly to 68%, making February feel cooler and drier than the tropical conditions of September. For more detailed insights, you can check out Changzhou weather in February.
When comparing September and March weather, there are notable differences in temperature and precipitation. September experiences significantly higher temperatures, with a minimum of 21°C (71°F) and an average of 29°C (84°F), peaking at 36°C (97°F). In contrast, March tends to be much cooler, with a minimum of 10°C (50°F) and an average of 21°C (70°F), reaching a maximum of 31°C (88°F). Additionally, September is wetter, receiving 207 mm (8.1 in) of rain over 21 days, while March has only 107 mm (4.2 in) across 15 days. Despite the similarities in humidity levels, with September at 75% and March at 73%, the overall climate is more humid and torrid in September than the milder conditions found in March. For more detailed insights, you can check Changzhou weather in March.
September and April present contrasting weather patterns in terms of temperature and precipitation. In September, the temperatures are warmer, with a minimum of 21°C (71°F) and an average of 29°C (84°F), peaking at a maximum of 36°C (97°F). This month also sees higher precipitation, with 207 mm (8.1 in) falling over 21 days, coupled with a humidity level of 75%. In contrast, April enjoys milder temperatures, starting from a minimum of 12°C (54°F) and reaching an average of 23°C (74°F), with a maximum of 33°C (92°F). Precipitation in April is less frequent, totaling 149 mm (5.9 in) over just 14 days, and the humidity is slightly lower at 71%. For more detailed insights on April weather, you can check Changzhou weather in April.
September and May exhibit distinct weather patterns. In September, temperatures range from a minimum of 21°C (71°F) to an average of 29°C (84°F), peaking at 36°C (97°F). The month experiences significant rainfall, with 207 mm (8.1 in) of precipitation over 21 days, alongside a humidity level of 75%. In contrast, May presents slightly cooler conditions, with temperatures starting at a minimum of 15°C (60°F), averaging 27°C (81°F), and also reaching a maximum of 36°C (97°F). Rainfall is more abundant in May, totaling 246 mm (9.7 in) over 22 days, with a higher humidity of 79%. Both months share high temperatures but differ in precipitation and humidity, highlighting the transitional nature of the seasons. For more specific insights, check Changzhou weather in May.
September and June both feature similar average temperatures, with highs reaching up to 36°C (97°F) and average temperatures at 29°C (84°F). However, September generally experiences a slightly lower minimum temperature of 21°C (71°F) compared to June's minimum of 24°C (75°F). When it comes to precipitation, June is markedly wetter, receiving 413 mm (16.3 in) over 25 days, while September has 207 mm (8.1 in) over 21 days—indicating that June is the more humid month, with a humidity level of 77% compared to September's 75%. For more detailed insights into June's weather patterns, you can check Changzhou weather in June.
When comparing the weather in September and July, it's evident that both months experience high temperatures, though July tends to be slightly hotter overall. In July, temperatures range from a minimum of 25°C (77°F) to a maximum of 37°C (100°F), with an average of 30°C (86°F). In contrast, September has a more moderate temperature range, with lows of 21°C (71°F) and highs reaching 36°C (97°F), averaging 29°C (84°F).
Both months also see significant rainfall, with September recording 207 mm (8.1 in) over 21 days and July slightly higher at 212 mm (8.3 in) over 23 days. Humidity levels are more pronounced in July at 88%, compared to September's 75%. For more details, you can check out Changzhou weather in July.
In comparing the weather of September to that of August, we observe some notable differences. September features a slightly lower minimum temperature of 21°C (71°F) and a maximum of 36°C (97°F), while August experiences higher lows at 25°C (76°F) and peaks at a hotter 38°C (101°F). Both months have similar average temperatures, around 29°C (84°F in September and 85°F in August). However, September sees a significant reduction in precipitation, with 207 mm (8.1 in) over 21 days compared to August's 327 mm (12.9 in) across 26 days, indicating that September is slightly drier. Additionally, humidity levels are noticeably lower in September at 75%, compared to the higher 88% in August. For more detailed information on August weather in Changzhou, you can check Changzhou weather in August.
In comparing the weather between September and October, there are notable differences in temperature and precipitation. September typically sees a minimum temperature of 21°C (71°F) and an average of 29°C (84°F), with maximums reaching up to 36°C (97°F). The month is marked by high humidity at 75% and considerable rainfall, totaling 207 mm (8.1 in) over 21 days. In contrast, October experiences cooler temperatures, with a minimum of 16°C (62°F) and an average of 25°C (77°F), peaking at 35°C (95°F). This month sees a significant reduction in precipitation to 96 mm (3.8 in) over just 9 days and a drop in humidity to 65%. For detailed insights, you can refer to Changzhou weather in October.
September and November present a stark contrast in weather patterns. In September, temperatures are warm, with a minimum of 21°C (71°F) and averages reaching up to 29°C (84°F), peaking at a scorching 36°C (97°F). This month also sees significant rainfall, with precipitation totaling 207 mm (8.1 in) over 21 days, contributing to a high humidity level of 75%.
In contrast, November brings a cooler climate, where temperatures dip to a minimum of 12°C (54°F) and an average of 22°C (71°F), with maxima around 31°C (88°F). The month is much drier, with only 23 mm (0.9 in) of rain over 5 days and lower humidity at 64%. For more detailed insights, you can check Changzhou weather in November.
September and December present quite a contrast in weather. In September, temperatures range from a minimum of 21°C (71°F) to a sizzling maximum of 36°C (97°F), with an average of 29°C (84°F). The month is characterized by high humidity at 75% and significant rainfall, with 207 mm (8.1 in) of precipitation spread over 21 days. In stark contrast, December brings cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 29°C (85°F), averaging at 17°C (63°F). Precipitation drops significantly to just 20 mm (0.8 in) over 3 days, and humidity decreases to 69%. For more details about December weather, visit Changzhou weather in December.
As September rolls in, Changzhou experiences a notable shift in weather, marked by a blend of warm temperatures and increased precipitation that sets it apart from the summer months. While the average temperature hovers comfortably around 29°C (84°F), the humidity can feel quite oppressive at 75%. With rain gracing 21 days of the month, the transition from the scorching heat of summer to the milder conditions of autumn is evident, making it an essential time for residents and travelers alike to adapt. For a deeper dive into how September compares to the rest of the year, visit Changzhou Climate.