Last updated: August 21, 2025
In September, Changsha, China, experiences a diverse climate characterized by a maximum temperature reaching 36°C (96°F) and an average of 23°C (74°F), perfect for those who enjoy warm weather. The minimum temperature can drop to a comfortable 16°C (62°F). However, expect a fair amount of rain with 165 mm (6.5 in) of precipitation spread over approximately 18 days, creating a humid atmosphere with levels around 84%. This month offers a unique blend of warmth and occasional showers, making it a vibrant time in the city.
In September, Changsha experiences a warm and pleasant transition from summer to autumn. The temperatures range from a minimum of 16°C (62°F) to an average of 23°C (74°F), peaking at a comfortable 36°C (96°F) during the day. This month marks a slight decrease from the sweltering highs of July and August, yet still maintains a vibrant warmth that encourages outdoor activities. The gradual cooling hints at the arrival of fall, making it an ideal time for enjoying the city's parks and scenic vistas. As daylight begins to shorten, visitors can appreciate Changsha’s unique charm wrapped in semi-summer warmth, setting a delightful tone for the upcoming season.
In September, Changsha experiences a significant precipitation dip after the peak rainfall of the summer months, receiving 165 mm (6.5 in) of rain over 18 days. This marks a decrease from the 196 mm (7.7 in) recorded in August, yet it remains one of the wetter months of the year. The transition into autumn clearly reflects a pattern of fluctuating rains; June through August witness the heaviest downpours, while the rainfall gradually tapers off in October. Despite this decline, September still delivers a substantial amount of precipitation, indicative of the region's humid subtropical climate, setting the stage for the cooler months ahead.
In September, Changsha, China experiences a notable dip in humidity, with levels falling to 84% after the peak of 87% in August. This slight decrease suggests a gradual transition from the intense humidity of summer into the milder conditions of autumn. Over the months, humidity in Changsha tends to rise steadily from January's 72% to the summer's highs, peaking in July and August, before beginning its descent. Interestingly, September’s humidity remains relatively high compared to the earlier months of the year, signaling that while summer's grip is loosening, the lingering moisture still influences the city's climate. As October approaches, humidity levels stabilize further, hinting at the onset of a more comfortable autumn atmosphere.
In September, Changsha experiences a UV Index of 10, categorizing it as very high, with an average burn time of just 15 minutes. This slight decrease from the peak levels seen in the summer months reflects the transition towards autumn, yet the intensity of UV radiation remains significant. Throughout the preceding months, the city has grappled with extreme UV Index values peaking at 12 in both July and August, which has required residents and visitors to exercise particular caution when outdoors. As October approaches, a gradual decline in UV intensity suggests a trend towards safer exposure levels, while reminding us of the need for sun protection. For more detailed information on UV exposure in Changsha, check out Changsha UV Index.
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In September, Changsha enjoys a delightful transition as the summer sun begins to wane, bringing with it an impressive 230 hours of sunshine. This marks a noticeable dip from the peak heat of the summer months, with July and August basking in over 300 hours each. Yet, September still shines brightly compared to the earlier months of the year. As autumn approaches, the sunlight hours reveal a gradual decrease, foreshadowing the shorter days ahead in October and November. This change not only signals the end of sweltering summer days but also invites a refreshing atmosphere that is perfect for enjoying the city’s vibrant parks and riverside views.
When considering the likelihood of sunny weather in Changsha, China, September stands out with a notable 39% chance of sunshine. This marks a peak in sun probability compared to the earlier months of the year, where the chances tend to hover below 30%. The shift is particularly striking when juxtaposed with the wettest months of the summer season, such as June and August, which dip to 13% and 24%, respectively. After the oppressive heat and rain of the summer, September brings a refreshing turn, making it a more inviting time for outdoor activities. As the month progresses, the chance of clear skies invites both locals and travelers to bask in the sunlight before the cooler, cloudier months arrive.
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.
As September rolls into Changsha, a gentle breeze begins to sweep through the city, with an average wind speed of 1.7 m/s (4 mph), making it the most noteworthy month for wind velocity this year. This uptick marks a subtle but significant change from the preceding summer months, where breezes hovered around 1.4 m/s (3 mph), providing a mild reprieve from the sweltering heat. As the air freshens, residents can enjoy the invigorating sensation of the wind, heralding the transition into autumn. This trend continues to enhance the beauty of the season, fostering a delightful atmosphere that invites leisurely strolls through Changsha's vibrant streets.
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 showcase stark contrasts in weather conditions. In September, temperatures range from a mild 16°C (62°F) at night to a sweltering 36°C (96°F) during the day, averaging around 23°C (74°F). This month also experiences significant rainfall, with 165 mm (6.5 in) occurring over approximately 18 days, resulting in a high humidity of 84%. In contrast, January offers a much cooler climate, with temperatures dropping to a minimum of -2°C (29°F) and only reaching a maximum of 16°C (61°F), averaging 8°C (46°F). Rainfall is considerably less, totaling just 48 mm (1.9 in) over about 11 days, and the humidity is lower at 72%. For more detailed information, you can refer to Changsha weather in January.
September and February showcase striking contrasts in weather. In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 36°C (96°F), with an average of 23°C (74°F), making it much warmer overall. Additionally, September experiences higher precipitation levels of 165 mm (6.5 in) over 18 days and a humidity of 84%, creating a quite humid environment. In contrast, February presents a distinctly cooler climate, with temperatures dropping to a minimum of 0°C (33°F) and peaking at 26°C (78°F), averaging just 9°C (49°F). The month sees significantly less rainfall, totaling 48 mm (1.9 in) over 12 days, accompanied by a lower humidity of 76%. For more detailed insights, you can explore Changsha weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 36°C (96°F), with an average of 23°C (74°F). The month witnesses considerable rainfall, accumulating about 165 mm (6.5 in) over 18 days, coupled with high humidity levels at 84%. Conversely, March offers cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 33°C (92°F), averaging around 15°C (59°F). Precipitation is lighter in March, totaling 70 mm (2.8 in) across 16 days, and humidity is slightly lower at 80%. These differing conditions highlight the transition from the warm, wet end of summer in September to the mild, drier onset of spring in March. For more detailed insights, check Changsha weather in March.
In September, the weather is generally warmer, with average temperatures around 23°C (74°F) and maximums reaching as high as 36°C (96°F). The month is also characterized by a high humidity level of 84% and significant rainfall, totaling 165 mm (6.5 inches) across 18 days. In contrast, April experiences cooler temperatures, averaging 18°C (65°F), with minimums as low as 8°C (47°F) and maximums hitting 35°C (95°F). While April receives less precipitation—101 mm (4.0 inches) over 15 days—it features lower humidity at 77%. For more detailed insights about the spring climate, check out Changsha weather in April.
In comparing the weather of September and May, both months experience warm temperatures, with September averaging around 23°C (74°F) compared to May's slightly cooler average of 21°C (71°F). However, September often brings higher maximum temperatures, reaching up to 36°C (96°F), matching May's peak at 36°C (98°F). Precipitation is more pronounced in September, with 165 mm (6.5 in) falling over 18 days, compared to May's 139 mm (5.5 in) across the same number of days. Humidity levels are also slightly higher in September at 84%, versus 82% in May. For more detailed insights on May's weather, you can check Changsha weather in May.
In comparing the weather of September and June, both months experience similar temperature ranges, with September averaging around 23°C (74°F) and June slightly warmer at 24°C (76°F). The maximum temperatures peak at 36°C (96°F) in both months, demonstrating a shared intensity of heat. However, September sees a marginally lower average precipitation of 165 mm (6.5 in) compared to June's 174 mm (6.8 in), though both months are characterized by frequent rainfall, occurring on approximately 18 to 19 days. Humidity levels remain comparable, with September at 84% and June at 85%, contributing to the overall muggy feel typical of both months. For more detailed insights, you can visit Changsha weather in June.
When comparing the weather in September and July, we see notable differences in temperature and precipitation patterns. In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 36°C (96°F), with an average of 23°C (74°F). In contrast, July features higher temperatures, with a minimum of 19°C (67°F), an average of 28°C (82°F), and a maximum of 39°C (103°F). Additionally, both months experience similar levels of rainfall, with September receiving 165 mm (6.5 in) and July slightly more at 184 mm (7.2 in), though both months have about 18 days of precipitation. Humidity levels remain comparable, with September at 84% and July at 85%. For a more in-depth look at the specifics, check out Changsha weather in July.
In comparing the weather between September and August, September generally experiences slightly cooler temperatures, with a minimum of 16°C (62°F) and an average of 23°C (74°F), compared to August's higher minimum of 18°C (65°F) and average temperature of 28°C (83°F). Although September's maximum temperature reaches 36°C (96°F), it is notably lower than August's peak of 39°C (102°F). Additionally, September sees more precipitation with 165 mm (6.5 in) over 18 days, while August has 196 mm (7.7 in) over just 16 rainy days. Humidity levels are also marginally lower in September at 84%, compared to 87% in August. For more details on August weather, visit Changsha weather in August.
In September, the weather is characterized by warmer temperatures, with a minimum of 16°C (62°F) and an average of 23°C (74°F), often reaching a maximum of 36°C (96°F). The month experiences significant rainfall, totaling 165 mm (6.5 inches) over 18 days, coupled with high humidity levels at 84%. In contrast, October sees a cooler shift, with temperatures dropping to a minimum of 10°C (50°F) and an average of 17°C (64°F), while still peaking at 36°C (97°F). Precipitation decreases to 129 mm (5.1 inches) across 20 days, and humidity levels remain slightly lower at 81%. For more detailed insights into October's weather conditions, refer to Changsha weather in October.
September weather is characterized by significantly warmer temperatures, with an average of 23°C (74°F) and highs reaching up to 36°C (96°F). This month also sees a considerable amount of precipitation, with 165 mm (6.5 in) spread over 18 days, resulting in high humidity levels at 84%. In contrast, November experiences much cooler temperatures, with an average of 13°C (55°F) and maximums of 25°C (78°F). Precipitation decreases to 59 mm (2.3 in) over 12 days, while humidity remains slightly higher at 86%. For more detailed information, you can check out Changsha weather in November.
In September, the weather typically features a warm and humid climate, with temperatures ranging from a minimum of 16°C (62°F) to a scorching maximum of 36°C (96°F). This month also sees significant rainfall, totaling 165 mm (6.5 in) across approximately 18 days, creating a humid atmosphere with an average humidity level of 84%. In contrast, December brings much cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 18°C (64°F). Precipitation decreases to 54 mm (2.1 in) over about 13 days, accompanied by a slight drop in humidity to 81%. For more details on December weather, visit Changsha weather in December.
As September unfolds in Changsha, the weather begins to transition from the sweltering heat of summer to a more temperate atmosphere. With the average temperatures comfortably hovering around 23°C (74°F), it offers a welcome reprieve from the peak summer highs. However, the month is also marked by significant rainfall, totaling 165 mm (6.5 in) across about 18 days, creating an atmosphere of humidity that can reach up to 84%. This unique blend of warmth and moisture distinguishes September from the harsher extremes of other months, making it a vibrant time for nature and outdoor activities. For more detailed insights into the weather patterns, visit Changsha Climate.