Last updated: August 21, 2025
In September, the weather in Changsha, China showcases a delightful blend of warmth and humidity, perfect for those seeking a late-summer experience. Temperatures typically reach a maximum of 31°C (88°F), with an average of 25°C (77°F) and a refreshing minimum of 19°C (66°F) during cooler nights. While visitors can enjoy the warm days, they should be prepared for some rain, as the month sees an average precipitation of 138 mm (5.4 in) over approximately 10 days. With humidity levels around 79%, the air feels rich and warm, making it essential to stay hydrated and embrace the lush, vibrant atmosphere that September brings to this dynamic city.
As September rolls into Changsha, the temperatures begin to show a delightful transition from the sweltering summer to the mild embrace of autumn. With minimums around 19°C (66°F) and maximums peaking at 31°C (88°F), the month offers a comfortable average of 25°C (77°F), making it ideal for outdoor activities. This slight cooling trend marks a significant drop from the intense heat of August, where temperatures soared to 33°C (91°F). As the month progresses, the city enjoys pleasant evenings, inviting residents and visitors alike to revel in the warm yet refreshing atmosphere. Overall, September in Changsha is a charming time, striking a balance between the lingering warmth of summer and the hints of the cooler months ahead.
In September, Changsha experiences a noteworthy drop in precipitation compared to the summer months, gathering 138 mm (5.4 in) of rain over 10 days. This amount marks a decline from the intense rainfall of July and August, which both exceeded 200 mm and had 13 days of precipitation each. The transition into autumn brings a respite from the heavy summer showers, as September's rainfall is more moderate yet still significant for sustaining the region's lush landscapes. With an average of 10 rainy days, September strikes a balance between the abundant moisture of summer and the drier months ahead, hinting at the approaching cooler season.
September in Changsha, China, marks a distinct shift in humidity levels as the sweltering summer begins to wane. Following the peak of 95% humidity in July and a still-high 92% in August, September sees a refreshing drop to 79%. This decline provides a reprieve from the oppressive moisture of the earlier months, paving the way for more comfortable conditions. As autumn approaches, the air becomes crisper, yet remnants of summer linger, reminding residents of the typically humid climate that defines the region. The overall trend reflects a gradual transition towards lower humidity, with October and November continuing the descent to 76% and 77%, respectively, signaling the changing seasons.
In September, Changsha experiences a notable shift as the UV Index remains at a very high level of 10, much like the preceding months of April and May. This consistency underscores a trend of heightened UV exposure during the latter part of summer, with a burn time of just 15 minutes if you're not adequately protected. As the summer heat begins to wane, residents and visitors should still be vigilant, as the intense UV radiation continues to pose a risk. As October approaches, it's worth noting that the UV Index will gradually decline, but for now, staying sun-safe remains a priority. For more insights and tips on UV exposure, check out Changsha UV Index.
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As September rolls in over Changsha, the city basks in 269 hours of glorious sunshine, a remarkable yet slightly subdued glow compared to the vibrant peak of 308 hours in August. This transition marks a shift from the summer's long days, reflecting the gradual slide into autumn. May and June stand out as the sunniest months leading into this vibrant autumnal period, with hours of sunlight steadily increasing to a height in the summer. As the year progresses, September maintains a commendable stature among its peers, showcasing the lingering warmth of summer while heralding the cooler days ahead. This beautiful blend of sunshine and early autumn invites both residents and visitors to revel in the charm of Changsha's evolving landscape.
As summer transitions to autumn, September in Changsha, China offers a refreshing glimpse of sunny weather with a 46% chance of clear skies. This marks a slight recovery from the peak of summer, where the chances dipped to a low of 24% in July. Interestingly, September's likelihood of sun closely aligns with the early months of the year, such as January and February, which see sun chances around 49% and 47%, respectively. The upward trend in sunny days continues as the city heads into the more promising months of October (40%) and eventually November (59%), hinting at a shift toward brighter, more pleasant weather as the year winds down.
As September unfolds in Changsha, China, the city experiences a gentle decline in daylight, with around 12 hours of sunlight each day. This transition marks a shift from the long, sun-drenched days of summer, where July and June bask in 14 hours of light, to the more moderate conditions of autumn. Following the peak daylight of the summer months, September serves as a reminder of the impending seasonal change, gradually giving way to October’s shorter 11-hour days. The rhythm of daylight here illustrates how nature gracefully eases from the vibrant energy of summer into the serene embrace of fall, providing a picturesque backdrop for the changing leaves and cooler temperatures.
As summer gives way to fall in Changsha, China, September brings a refreshing breeze with an average wind speed of 5.6 m/s (13 mph). This slight uptick from the quieter days of August, where winds slowed to 4.7 m/s (11 mph), signals a transition in the seasonal rhythm. Compared to the earlier months of the year, particularly the calmer spring, where average speeds hovered around 5.1 m/s (11 mph), the September winds carry a hint of summer's lingering warmth while also hinting at the cooler autumn days to come. This gentle increase in wind often creates a delightful atmosphere, perfect for outdoor activities against the backdrop of changing leaves and crisp skies.
Weather in Changsha varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Changsha, focusing on differences in temperature, rainfall, humidity, and UV levels.
September's weather contrasts significantly with that of January. In September, temperatures range from a mild 19°C (66°F) to a warm 31°C (88°F), accompanied by high humidity at 79% and substantial rainfall of 138 mm (5.4 in) over approximately 10 days. In contrast, January experiences much cooler temperatures, with a minimum of -6°C (21°F) and a maximum of only 13°C (56°F). Precipitation is reduced to 60 mm (2.4 in) over 7 days, and humidity drops to 67%. For a detailed look at January weather, you can visit Changsha weather in January.
September and February present contrasting weather experiences. In September, temperatures are warm with a minimum of 19°C (66°F) and an average of 25°C (77°F), peaking at a maximum of 31°C (88°F). The month also sees considerable rainfall, totaling 138 mm (5.4 in) over about 10 days, accompanied by high humidity at 79%. In stark contrast, February brings chillier conditions, with a minimum temperature of -2°C (30°F) and an average of just 5°C (42°F), reaching a maximum of 14°C (58°F). Precipitation is lower at 65 mm (2.5 in) over 9 days and humidity is relatively lower at 69%. For more detailed insights on February weather, explore Changsha weather in February.
September and March present distinctly different weather patterns. In September, temperatures are warmer, ranging from a minimum of 19°C (66°F) to a maximum of 31°C (88°F), with an average of 25°C (77°F). The month experiences significant rainfall, with 138 mm (5.4 in) of precipitation over 10 days, accompanied by high humidity at 79%. In contrast, March sees much cooler temperatures, with a minimum of 3°C (37°F), an average of 9°C (49°F), and a maximum of 18°C (65°F). Precipitation is also less in March, totaling 71 mm (2.8 in) over 9 days, while humidity remains steady at 79%. For more detailed information, you can check Changsha weather in March.
In September, the weather is considerably warmer than in April, with average temperatures reaching around 25°C (77°F) compared to April's milder average of 14°C (57°F). The maximum temperatures in September can soar up to 31°C (88°F), while April peaks at a much cooler 22°C (72°F). Additionally, September experiences higher precipitation levels, totaling 138 mm (5.4 in) over about 10 days, compared to April's 81 mm (3.2 in) across 9 days. However, April has slightly higher humidity at 86%, compared to September’s 79%. For a detailed look at April's conditions, you can explore Changsha weather in April.
September and May exhibit distinct weather characteristics. In September, temperatures range from a minimum of 19°C (66°F) to a maximum of 31°C (88°F), providing warmer days with an average temperature of 25°C (77°F). This month also sees significant rainfall, totaling 138 mm (5.4 in) over about 10 days, accompanied by a humidity level of 79%. In contrast, May has milder conditions with temperatures ranging from 13°C (56°F) to 26°C (79°F), and an average of 19°C (66°F). Precipitation in May is slightly less at 125 mm (4.9 in) over 9 days, with a higher humidity of 87%. The climate differences can be explored further in this link: Changsha weather in May.
When comparing the weather in September and June, we see some distinct differences. September typically enjoys slightly warmer temperatures, with an average of 25°C (77°F) compared to June's 23°C (74°F), and both months share a maximum temperature of 31°C (88°F). However, September is characterized by more rainfall, averaging 138 mm (5.4 in) over about 10 days, while June sees slightly less precipitation at 134 mm (5.3 in) across just 7 days. Additionally, humidity levels are higher in June at 90%, compared to September's 79%. For more detailed insights, you can check Changsha weather in June.
In comparing the weather of September and July, July tends to be warmer with a minimum temperature of 21°C (70°F) and an average of 27°C (81°F), peaking at 33°C (93°F). It also experiences higher humidity at 95% and greater precipitation, averaging 210 mm (8.3 in) over 13 days. In contrast, September offers slightly cooler temperatures, with a minimum of 19°C (66°F) and an average of 25°C (77°F), and maxing out at 31°C (88°F). Although it is less humid at 79%, September still sees considerable rainfall, with 138 mm (5.4 in) spread across 10 days. For more detailed insights about July's conditions, check Changsha weather in July.
In comparing the weather of September and August, September experiences slightly cooler temperatures with an average of 25°C (77°F), compared to August's warmer average of 28°C (83°F). The maximum temperatures also decrease from 33°C (91°F) in August to 31°C (88°F) in September. Additionally, September sees less precipitation at 138 mm (5.4 in) over 10 days, whereas August receives 197 mm (7.7 in) across 13 days, indicating a drier month. Humidity also drops from a high of 92% in August to 79% in September, making September feel more comfortable overall. For more detailed insights, you can visit Changsha weather in August.
September and October present a notable shift in weather patterns. September enjoys warmer temperatures with a minimum of 19°C (66°F) and an average of 25°C (77°F), peaking at 31°C (88°F). In contrast, October cools down significantly, featuring a minimum of 13°C (56°F) and an average temperature of 20°C (68°F), reaching a maximum of 28°C (83°F).
Precipitation also sees a decline; September experiences a heavier rainfall of 138 mm (5.4 in) over about 10 days, while October sees a reduction to 80 mm (3.2 in) over 8 days. Humidity remains relatively high in both months, with September at 79% and October slightly lower at 76%. For a detailed look at October's weather, check out Changsha weather in October.
September typically boasts warm temperatures, ranging from a minimum of 19°C (66°F) to a maximum of 31°C (88°F), with an average of 25°C (77°F). The month experiences significant rainfall, accumulating about 138 mm (5.4 in) over approximately 10 days, while humidity hovers around 79%. In contrast, November brings cooler conditions, with temperatures dipping to a minimum of 4°C (40°F) and reaching a maximum of 22°C (71°F), averaging 14°C (58°F). Precipitation decreases to 69 mm (2.7 in) across about 7 days, with humidity slightly lower at 77%. The transition from September's warmth to November's crispness marks a notable shift in weather patterns. For more details, visit Changsha weather in November.
In September, the weather is notably warm, with temperatures ranging from a low of 19°C (66°F) to a high of 31°C (88°F) and an average of 25°C (77°F). This month sees considerable rainfall, as it averages 138 mm (5.4 in) over 10 days, coupled with a high humidity level of 79%. In contrast, December brings a dramatic shift, featuring much cooler temperatures with a minimum of -4°C (25°F), an average of 8°C (47°F), and a maximum of 17°C (63°F). Precipitation in December is significantly lower at 61 mm (2.4 in) over 8 days, and humidity drops slightly to 73%. For more detailed information on December weather, check Changsha weather in December.
September in Changsha presents a transitional climate, where the lingering warmth of summer gradually gives way to the cooler whispers of autumn. With an average temperature that sits comfortably in the mid-20s°C, the month is characterized by a pleasant mix of sunny days and occasional rainfall, contributing to its higher humidity levels. The increased precipitation, spread over about a third of the month, marks a notable shift from the drier summer months, heralding the approach of fall. For those seeking to explore the changing seasons in Changsha, September offers a unique experience, making it a wonderful time for outdoor activities. To learn more about what to expect, visit Changsha Climate.