Last updated: August 21, 2025
In September, Changsha, China experiences a dynamic shift in weather, marked by a maximum temperature reaching a sweltering 39°C (102°F) and an average of 26°C (80°F), while dipping to a refreshing minimum of 17°C (63°F) at night. This month witnesses an average precipitation of 75 mm (3.0 in) over approximately 10 days, contributing to a relatively humid atmosphere with levels around 66%. Such conditions create a unique blend of heat and moisture, ideal for those who enjoy the vibrant late-summer climate, but it also calls for stays hydrated and prepared for intermittent rain.
In September, Changsha experiences a smooth transition from the sweltering summer heat into the more comfortable temperatures of autumn. With a minimum temperature of 17°C (63°F) and an average that hovers around 26°C (80°F), residents can enjoy a pleasant reprieve from the peak summer days when thermometers often reach as high as 39°C (102°F). This month stands out as a time when high temperatures still cling to the summer vibe but begin to cool off subtly, setting the stage for October’s arrival. The rich warmth coupled with the beginning of fall brings a unique charm to the city, making September an ideal time to explore Changsha's vibrant culture and natural beauty.
In September, Changsha experiences a moderate precipitation total of 75 mm (3.0 in) over approximately 10 days, marking a transitional shift as the summer rains begin to recede. This decrease in rainfall follows a peak in June and July, which recorded over 200 mm, and reflects the city's gradual move from its wettest summer months toward drier autumn conditions. Interestingly, September's rainfall is notably less than the 232 mm observed in May, indicating a significant easing of the monsoon influence. While September still retains some moisture, the diminishing number of rainy days hints at a calmer weather pattern, setting the stage for the drier months ahead.
As September arrives in Changsha, China, a noticeable shift in humidity occurs, dropping to 66%. This transition marks a refreshing change from the peak of summer, where humidity reaches its zenith at 89% in July. Although September's levels are lower, the lingering warmth from the summer months still creates a sense of stickiness in the air. The humidity gradually increases in the subsequent months, settling into 68% by October. This trend illustrates the city’s characteristic humid subtropical climate, showcasing both the sweltering summers and the milder transitions into fall. With each passing month, the humidity rhythmically dances between its highest and lowest points, shaping the unique weather experience of Changsha.
September in Changsha, China, experiences a UV Index of 10, categorized as very high. As the summer months wane, the exposure risk remains significant with a burn time of just 15 minutes under direct sunlight. This pattern follows the extreme levels observed in July and August, indicating a gradual tapering of intensity as the season transitions into autumn. While October may bring a slight decrease to an Index of 9, the need for sun protection remains essential through this period. Stay informed and safe by checking the UV levels frequently at Changsha UV Index.
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As September rolls in Changsha, the city basks in 253 hours of sunshine, a delightful continuation of the summer warmth felt in August, which boasted an impressive 314 hours. This trend of abundant sunlight peaks during the sweltering summer months of July and August, with July enjoying a stellar 300 hours. However, as autumn approaches, September experiences a noticeable dip, yet it still significantly outshines the winter months, which linger around 140 to 198 hours. This gradual transition hints at a balancing act between the lingering summer rays and the cooling autumn breeze, making September a beautiful bridge between two vibrant seasons in Changsha.
In September, Changsha, China, experiences a notable uptick in sunshine, with the likelihood of sun reaching 61%. This significant increase marks a shift from the sultry summer months, where sunny days lingered around the low 30s percentage-wise. The transition into fall reveals a more promising outlook for sun-seekers, especially when contrasted with the preceding months of April and May, which offered much fewer sunny spells. As the city prepares to welcome autumn, this blend of warmth and light provides a perfect backdrop for outdoor activities and exploration. With September standing out as the sunniest month since April, it sets a delightful stage for both locals and tourists to enjoy the beautiful sights of Changsha.
As September arrives in Changsha, China, the daylight begins to shift subtly, embracing a transitional phase. The city basks in 12 hours of daylight, a gentle decline from the peak of 13 hours experienced during the summer months of June through August. This process indicates a gradual shift towards shorter days, mirroring the natural rhythm of the changing seasons. Following September, daylight will continue to decrease, dropping to 11 hours in October and settling at 10 hours by November. This seasonal pattern not only highlights the beauty of dynamic day length but also ushers in the cozy embrace of autumn, inviting residents to enjoy the softer, golden-hued evenings.
In September, Changsha experiences a gentle average wind speed of 2.4 m/s (5 mph), marking a slight decrease from the summer months. As the city transitions from the sweltering heat of August, the light breeze provides a refreshing touch, inviting residents and visitors to enjoy the vibrant autumn atmosphere. Notably, September's wind speed aligns closely with the lower readings seen in the earlier months of the year, such as January and February, suggesting a seasonal calm after the more dynamic breezes of late spring and early summer. This consistent yet mild airflow supports the region's picturesque charm, making September an enchanting time to explore Changsha’s scenic beauty.
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 and January present a stark contrast in weather, with September typically basking in warm temperatures averaging 26°C (80°F) and peaking at a sweltering 39°C (102°F). This month also experiences notable humidity at 66%, along with about 75 mm (3.0 in) of precipitation across 10 days. In contrast, January brings a much cooler climate, where temperatures can drop to a minimum of -5°C (24°F) and average only around 6°C (44°F). While it remains relatively dry with 67 mm (2.6 in) of precipitation over 9 days, humidity rises slightly to 69%. For more insights on January weather, you can check out Changsha weather in January.
September and February present strikingly different weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a sweltering maximum of 39°C (102°F), accompanied by an average temperature of 26°C (80°F). This month experiences 75 mm (3.0 in) of precipitation over approximately 10 days and maintains a humidity level of 66%. In contrast, February showcases much cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 26°C (79°F), averaging around 9°C (48°F). It sees slightly higher precipitation at 95 mm (3.7 in) over 12 days, and humidity rises to 71%. For more detailed information, you can check Changsha weather in February.
September and March present strikingly different weather patterns. In September, temperatures range from a mild 17°C (63°F) to a high of 39°C (102°F), with an average of 26°C (80°F). The month experiences about 75 mm (3.0 in) of precipitation over approximately 10 days, and humidity levels are moderate at 66%. In contrast, March sees much cooler temperatures, with a minimum of 4°C (40°F) and an average of 14°C (57°F), peaking at 31°C (88°F). Precipitation is significantly higher in March, totaling 213 mm (8.4 in) spread over 19 days, accompanied by increased humidity at 83%. For a detailed look at March weather, you can visit Changsha weather in March.
In September, weather conditions feature warmer temperatures with a minimum of 17°C (63°F) and an average high of 26°C (80°F), reaching up to a scorching 39°C (102°F). In contrast, April experiences cooler temperatures, with a minimum of 7°C (44°F) and an average maximum of 32°C (91°F). One noticeable difference between the two months is the precipitation; September sees around 75 mm (3.0 in) over 10 days, while April is much wetter, with 187 mm (7.3 in) over 16 days. The humidity is also higher in April, at 86%, compared to September's 66%. For more detailed information, check this Changsha weather in April.
September and May present distinct weather profiles, each with its unique characteristics. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 39°C (102°F), with an average of 26°C (80°F). The month experiences 75 mm (3.0 in) of precipitation over about 10 days, and humidity levels hover around 66%. In contrast, May tends to be cooler, with temperatures starting at 12°C (54°F) and reaching a maximum of 35°C (94°F), averaging 23°C (74°F). However, it is significantly wetter, with 232 mm (9.1 in) of rain falling over 17 days and higher humidity at 85%. For more details about May weather, you can visit Changsha weather in May.
In September, temperatures in Changsha range from a minimum of 17°C (63°F) to a maximum of 39°C (102°F), with an average of 26°C (80°F). The month experiences 75 mm (3.0 in) of precipitation over 10 days, resulting in a humidity level of 66%. In contrast, June sees a more moderate temperature range with similar minimum and average figures, but a lower maximum of 35°C (96°F). However, it is significantly wetter, with 260 mm (10.2 in) of rain over 18 days and higher humidity at 85%. This indicates that while both months share some similarities in temperature, June is notably more humid and rainy. For more detailed information, you can check Changsha weather in June.
In September, the weather in Changsha is generally milder compared to July, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 39°C (102°F). The average temperature of 26°C (80°F) indicates a transition towards cooler days, although humidity remains relatively high at 66%. In contrast, July experiences hotter average temperatures of 29°C (85°F) with minimums around 21°C (69°F) and maximums peaking at 39°C (103°F). However, July is significantly wetter, receiving an average of 204 mm (8.0 in) of rain over 13 days, compared to September's 75 mm (3.0 in) over 10 days. For more detailed insights into July's climate, you can visit Changsha weather in July.
In comparing the weather conditions of September and August, it's clear that September tends to be slightly cooler, with average temperatures dropping from 30°C (86°F) in August to 26°C (80°F). However, the minimum temperatures in September are higher, with a low of 17°C (63°F) compared to August's 22°C (71°F). Precipitation also decreases slightly from August, which experiences 99 mm (3.9 in) of rain over 12 days, to September with 75 mm (3.0 in) over 10 days. Furthermore, humidity levels are notably lower in September at 66%, compared to 85% in August, making the former month feel more comfortable. For more detailed insights, you can visit Changsha weather in August.
In September, the weather is characterized by warmer temperatures, with a minimum of 17°C (63°F) and an average high of 26°C (80°F), occasionally peaking at 39°C (102°F). Despite the heat, this month receives a significant amount of rainfall, averaging 75 mm (3.0 in) across 10 days and a humidity level of 66%.
October, on the other hand, sees a noticeable drop in temperatures, with a minimum of 11°C (52°F) and an average high of 19°C (67°F), while still reaching highs of 38°C (100°F). The month experiences less precipitation, totaling 53 mm (2.1 in) over the same number of rainy days, and slightly higher humidity at 68%. For more details, visit Changsha weather in October.
September weather in Changsha is characterized by warm temperatures, with daily averages around 26°C (80°F) and maximums soaring up to 39°C (102°F). The month experiences relatively high humidity at 66% and receives about 75 mm (3.0 in) of rain over approximately 10 days. In contrast, November marks a significant drop in temperature, with an average of 14°C (58°F) and nightly lows dipping to 5°C (41°F). Although the total precipitation is slightly lower at 56 mm (2.2 in) and spread over 9 days, the humidity increases to 77%, creating a cooler, yet more humid atmosphere. For more detailed insights into the weather during this month, visit Changsha weather in November.
September and December present starkly contrasting weather conditions. In September, temperatures can soar to a maximum of 39°C (102°F), with an average of 26°C (80°F) and a minimum of 17°C (63°F). The month receives about 75 mm (3.0 in) of precipitation over approximately 10 days, coupled with a humidity level of 66%. In contrast, December ushers in a much colder climate, where temperatures range from a minimum of -3°C (26°F) to a maximum of 20°C (68°F) and an average of just 8°C (47°F). Precipitation drops to 52 mm (2.0 in) across 8 days, and humidity increases to 78%. For more details about the December weather, you can refer to Changsha weather in December.
As summer transitions into autumn, September in Changsha showcases a remarkable shift in weather. The intense heat of July and August gives way to slightly cooler temperatures, with an average hovering around a comfortable 26°C (80°F), making outdoor activities more enjoyable. While maximum temperatures can still reach a sweltering 39°C (102°F), the minimum drops to a refreshing 17°C (63°F), offering a pleasant respite from the summer blaze. September also sees increased rainfall, with about 75 mm of precipitation over roughly 10 days, enhancing the humidity to 66%. This blend of warmth and moisture contributes to a vibrant, rejuvenated landscape. For more detailed information, visit Changsha Climate.