Last updated: August 21, 2025
In September, Nanchang, China experiences a warm climate characterized by a maximum temperature of 37°C (99°F) and an average temperature of 27°C (80°F), offering a blend of heat and mild warmth. As temperatures drop to a minimum of 17°C (63°F) during the nights, the weather remains comfortable for evening outings. The month also witnesses approximately 70 mm (2.8 in) of rainfall spread over 8 days, contributing to a humidity level of 73% that can create a sticky atmosphere. This balance of warm days and occasional showers makes September a dynamic time to explore the vibrant city.
In September, Nanchang transitions into a warm embrace as summer bids farewell, with temperatures showing a delightful range. The minimum temperature hovers around 17°C (63°F), providing a comfortable start to the month, while the average climbs to a balmy 27°C (80°F). As the days progress, the maximum temperatures peak at 37°C (99°F), making it one of the warmest months of the year. This gradual warm-up from August's heat, coupled with the increasing warmth in October, signifies a lingering taste of summer. September in Nanchang offers a perfect blend of warmth and manageable weather, inviting both locals and travelers to enjoy outdoor adventures before the cooler autumn air sets in.
In Nanchang, September ushers in a noticeable transition in precipitation patterns as the summer's intensity begins to wane. With 70 mm (2.8 in) of rain falling over approximately 8 days, the month serves as a gentle precursor to the drier autumn months. This marks a significant drop from the preceding summer months, particularly June, which saw a staggering 305 mm (12.0 in) of rainfall spread across 20 days. As the oppressive summer heat dissipates, the rainfall in September is not only lighter but more sporadic, hinting at the arrival of cooler weather while still providing essential moisture for the region's greenery.
In Nanchang, China, September marks a noticeable shift as humidity levels drop to 73%, reflecting a transition from the peak summer humidity that often reaches 90% in July. While earlier months, particularly April through August, maintain high humidity at 86% or more, September offers a brief respite, aligning with the lower levels seen in January and October. This dip suggests a gradual easing of the sweltering heat, paving the way for the cooler, more comfortable months ahead. As autumn approaches, residents can expect a more temperate atmosphere, making September a delightful respite from the summer's humidity-heavy embrace.
As September rolls into Nanchang, China, residents experience an extreme UV Index of 11, necessitating vigilance during outdoor activities with a burn time of only 10 minutes. This trend highlights a remarkable consistency in high UV levels throughout the summer months, peaking in June, July, and August with an index of 12. Following this intense summer, September still maintains formidable levels before gradually easing into the very high category in October. With the UV Index consistently high from March through October, it’s essential for individuals to remain aware of their sun exposure. For detailed insights, explore the Nanchang UV Index.
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As September unfolds in Nanchang, China, residents can bask in 274 hours of sunshine, a delightful continuation of summer’s warmth. This month, while slightly lower than the peak levels of 313 hours seen in August, still reflects a robust trend of sunny days that have marked the preceding months. The city's daylight hours have seen an impressive climb since January's modest 162 hours, reaching a high in mid-summer before gracefully tapering off in the fall. Notably, September maintains a vibrant atmosphere, nestled comfortably between the sizzling summer and the more temperate autumn, showcasing Nanchang's enduring charm as daylight begins to wane.
In Nanchang, China, September stands out as a beacon of brightness on the weather calendar, boasting a likelihood of sunny weather at 69%. This marks a significant uptick from the gloomy months of early summer, where sunshine is a rare commodity, with probabilities dropping as low as 16% in June. Interestingly, the trend shifts notably as the year progresses; while January starts strong with a 59% chance, it pales in comparison to the optimism of September. Following this sunny month, October also maintains a relatively favorable outlook at 41%, suggesting that the warm glow of late summer lingers just a bit longer. Overall, September emerges as a prime time for sunshine enthusiasts, offering a delightful break from the unpredictable weather of the preceding months.
As summer transitions into autumn, September in Nanchang, China, marks a subtle shift in daylight duration, offering about 12 hours of sunlight each day. This aligns closely with the longer days of May through August, where residents enjoy up to 13 hours of daylight. However, as the year progresses towards October, daylight hours begin to decrease, echoing the trend observed in early spring. This ebb and flow of sunlight not only influences daily routines but also paints a beautiful picture of the natural rhythm of the changing seasons, where each month ushers in its own unique palette of light.
As September arrives in Nanchang, China, the gentle breezes begin to pick up slightly, with an average wind speed of 2.1 m/s (5 mph). This marks a modest increase from the summer months, where winds dipped to 1.9 m/s (4 mph) in both June and August. Unlike the sultry July, which had similar gusts to September at 2.5 m/s (5 mph), this transition hints at the subtle shifts in the atmosphere as the city prepares for the more invigorating winds of autumn. Looking ahead, October promises a noticeable rise in wind speed, reaching 3.4 m/s (8 mph), signaling the changing seasons and bringing cooler air that invigorates both the landscape and its inhabitants. Thus, September serves as a gentle precursor, nudging Nanchang toward the refreshing breezes that are characteristic of the fall.
Weather in Nanchang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Nanchang, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather contrasts. In September, temperatures range from a minimum of 17°C (63°F) to a scorching maximum of 37°C (99°F), with an average of 27°C (80°F). The month experiences considerable humidity at 73% and receives around 70 mm (2.8 in) of precipitation over 8 days. In contrast, January offers a much cooler climate, with temperatures dropping to a minimum of -5°C (24°F) and peaking at 23°C (73°F), averaging 7°C (45°F). The precipitation is slightly lower at 65 mm (2.5 in) but is also spread over 8 days, while the humidity sits at a comfortable 69%. For more details, check out Nanchang weather in January.
September and February present two distinct weather experiences. In September, temperatures range from a mild 17°C (63°F) to a hot 37°C (99°F), with an average of 27°C (80°F). The month sees about 70 mm (2.8 in) of precipitation over 8 days, alongside a humidity level of 73%. In contrast, February is considerably cooler, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 26°C (79°F) and an average of 8°C (48°F). While February has slightly higher precipitation at 76 mm (3.0 in) over 11 days, it maintains the same humidity level of 73%. For a more detailed look at February weather, check out Nanchang weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 37°C (99°F), with an average of 27°C (80°F), making it much warmer overall than March. However, March experiences a cooler climate, with temperatures ranging from 4°C (39°F) to 29°C (85°F) and an average of 14°C (57°F). Additionally, precipitation significantly differs; September sees 70 mm (2.8 in) over 8 days, while March is much wetter with 174 mm (6.9 in) over 16 days. Humidity levels are relatively high in both months, at 73% in September and 82% in March. For more details about March weather, you can check this link: Nanchang weather in March.
When comparing the weather between September and April, notable differences can be observed. September boasts a warmer climate with temperatures ranging from a mild minimum of 17°C (63°F) to a scorching maximum of 37°C (99°F), while April is significantly cooler, with temperatures starting at a low of 6°C (43°F) and peaking at 33°C (92°F). Additionally, September experiences less precipitation at 70 mm (2.8 in) over 8 days, compared to April's higher rainfall of 146 mm (5.8 in) across 14 days, which contributes to its greater humidity level of 86%. For more detailed information about April weather, you can check Nanchang weather in April.
When comparing the weather in September to that in May, several distinct differences emerge. September boasts warmer average temperatures, with lows around 17°C (63°F) and highs reaching a scorching 37°C (99°F), while May sees cooler temperatures, with a minimum of 11°C (53°F) and a maximum of 36°C (97°F). Another contrast is in precipitation; September experiences approximately 70 mm (2.8 in) over about 8 days, whereas May is significantly wetter, receiving 190 mm (7.5 in) over 17 days. Additionally, May has higher humidity at 86%, compared to September's 73%, contributing to a more muggy feel during springtime. For a closer look at the weather patterns in May, you can refer to Nanchang weather in May.
In comparing the weather of September and June, both months exhibit similar average temperatures around 27°C (80°F), but they differ significantly in other aspects. September typically sees a temperature range with minimums of 17°C (63°F) and maximums of 37°C (99°F), while June has minimums around 18°C (65°F) and maximums reaching 36°C (97°F). June is notably wetter, with a substantial 305 mm (12.0 in) of precipitation over 20 days, compared to September's 70 mm (2.8 in) spread over only 8 days. Additionally, June's humidity is higher at 86%, compared to September's 73%, leading to a more muggy atmosphere. For more detailed insights, you can visit Nanchang weather in June.
In comparing the weather between September and July, September experiences slightly cooler temperatures, with a minimum of 17°C (63°F) and an average of 27°C (80°F), compared to July's minimum of 21°C (71°F) and average of 30°C (85°F). July is typically hotter, reaching maximum temperatures of 39°C (102°F), while September peaks at 37°C (99°F). Moreover, July is notably wetter, with 231 mm (9.1 in) of precipitation over 14 days, whereas September sees considerably less rain at 70 mm (2.8 in) across 8 days. Humidity levels are also higher in July, at 90%, compared to September's 73%. For more detailed information, you can refer to Nanchang weather in July.
September's weather marks a slight transition from the warmer days of August. While the average temperature in September is lower at 27°C (80°F) compared to August's 30°C (87°F), the maximum temperature remains close, peaking at 37°C (99°F) in September and 38°C (100°F) in August. Additionally, September experiences reduced precipitation at 70 mm (2.8 in) over 8 days, in contrast to August's higher rainfall of 85 mm (3.3 in) across 12 days. Humidity also decreases in September to 73%, making the weather feel a bit more comfortable compared to August's more humid levels at 86%. For a more detailed look at August's conditions, you can visit Nanchang weather in August.
In September, the weather remains warm with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 37°C (99°F), leading to an average of 27°C (80°F). The month receives around 70 mm (2.8 in) of rainfall over approximately 8 days, accompanied by a humidity level of 73%. In contrast, October experiences a notable drop in temperatures, with minima dropping to 8°C (47°F) and an average temperature of 20°C (68°F), while highs barely reach 36°C (97°F). Rainfall decreases significantly to 33 mm (1.3 in) over 6 days, but humidity remains constant at 73%. For more detailed information, you can check out Nanchang weather in October.
September and November present contrasting weather conditions. In September, temperatures range significantly from a minimum of 17°C (63°F) to a maximum of 37°C (99°F), with an average around 27°C (80°F). The month experiences fairly high humidity at 73% and receives 70 mm (2.8 in) of precipitation over approximately 8 days. In stark contrast, November brings cooler temperatures with a minimum of 4°C (40°F), an average of 15°C (59°F), and a maximum of 29°C (84°F). Despite the drop in temperature, November has a slightly lower total precipitation of 53 mm (2.1 in) over the same number of rainy days, but humidity remains relatively high at 80%. For more detailed information, consider checking Nanchang weather in November.
September and December present strikingly different weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a scorching maximum of 37°C (99°F), with an average of 27°C (80°F). The month experiences about 70 mm (2.8 in) of precipitation over 8 days, accompanied by a humidity level of 73%. In contrast, December sees much cooler temperatures, with a minimum of -2°C (28°F) and an average of just 9°C (48°F), peaking at 24°C (75°F). Precipitation decreases to 46 mm (1.8 in) across 7 days, and humidity rises slightly to 79%. For a detailed look at December's climate, you can check Nanchang weather in December.
As September unfolds in Nanchang, the city transitions into a more pleasant climate compared to the sweltering summer months. While the days still boast warmth, with average temperatures hovering around a comfortable 27°C (80°F), the oppressive heat of July and August begins to recede, offering a welcome respite. Humidity remains relatively high at 73%, more reminiscent of summer than autumn. With about 70 mm of precipitation over 8 days, occasional rain showers not only cool the air but also rejuvenate the landscape, making September a unique blend of lingering warmth and refreshing rainfall. For more insights on what to expect throughout the year, check out the detailed Nanchang Climate.