Last updated: August 21, 2025
In Taihu, China, September ushers in a transition marked by warm and humid weather. The maximum temperature can reach a sweltering 34°C (93°F), while the average settles comfortably at 25°C (77°F), providing a pleasant atmosphere for outdoor activities. Cooler nights bring relief with minimum temperatures dipping to 17°C (63°F). However, with 121 mm (4.8 in) of rainfall across 12 days, be prepared for occasional showers that add to the region's 81% humidity. Whether you’re exploring nature or enjoying local festivities, September in Taihu offers a rich and dynamic climate experience.
In September, Taihu, China, welcomes the transition from summer to autumn with more moderate temperatures. The minimum remains comfortably warm at 17°C (63°F), while the average climbs to a pleasant 25°C (77°F), peaking at a still-sunny 34°C (93°F) during the day. This month reflects a gradual retreat from the scorching highs of summer, evident as the temperature dips from August's sweltering averages. Overall, September presents a harmonious blend of warmth and relief, making it an ideal time to explore the region before the cooler days of autumn settle in.
In September, Taihu, China, typically experiences a moderate precipitation, with a total of 121 mm (4.8 in) falling over an average of 12 days. This amount reflects a decline from the intense rainfall of July, which recorded a striking 283 mm (11.2 in), and positions September within a transitional phase as the region moves from the sultry summer into the more temperate autumn months. The consistency of rainfall in September, though less than the peak summer months, still underscores the lingering moisture as the area prepares for the drier conditions of October. Overall, September's precipitation acts as a crucial bridge, contributing to the lush biodiversity while hinting at the shift toward a more serene climate.
In September, humidity levels in Taihu, China begin to ease slightly after the peak summer months, registering at 81%. This drop follows a trend observed from the intensely humid conditions of July (93%) and August (91%), where the air is often thick and sweltering. As the year transitions into fall, the humidity continues to decline, with October seeing a further slight decrease to 80%. Overall, September marks a refreshing shift, offering a reprieve from the oppressive heat, while still retaining a significant amount of moisture that characterizes this vibrant region. This fluctuation reflects an annual rhythm, moving from high summer humidity to the more temperate conditions of autumn.
As summer transitions into autumn, the UV Index in Taihu, China, begins to show signs of moderation, though it remains notably high in September, registering a UV Index of 10 in the very high exposure category. After months of extreme UV levels peaking at 11, which demand cautious outdoor activity with a burn time of just 10 minutes, September offers a slight reprieve with a burn time of 15 minutes. This trend marks a gradual decline towards the cooler fall months, as October brings the UV Index down to 7. Nevertheless, even in September, it is essential for residents and visitors alike to remain vigilant against the sun's potent rays. For a deeper dive into UV trends and safety guidance, check out the resource at Taihu UV Index.
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September in Taihu, China, is a delightful transition from the summer's exuberance, basking in 259 hours of sunshine—a splendid amount that highlights the region's balance between warmth and the onset of autumn. Following the peak of 306 hours in August, September showcases a gentle decline, yet it remains robust compared to the earlier months of the year. This gradual decrease marks the end of summer, leading into October’s 239 hours, but still offers ample opportunities for outdoor adventures and scenic views. The trend reveals how Taihu's climate transitions gracefully through the seasons, with September serving as a golden bridge, infused with bright days while hinting at the cooler months ahead.
In Taihu, China, the likelihood of sunny weather experiences a notable shift throughout the year, with September presenting a promising 49% chance of sunshine. This marks a significant increase compared to the summer months, particularly July, which has the lowest probability at just 19%. As the year progresses into the fall, we see a gradual rise in sunny days, starting from 34% in August and continuing to an acceptable 45% in October. The end of the year brings even more sunshine, with November and December boasting 57% and 67% chances, respectively. Overall, September stands as a delightful balance, where the remnants of summer warmth meet the crispness of autumn, making it an ideal time to enjoy outdoor activities under the sun.
As September settles in Taihu, the daylight duration begins to gracefully wane, offering 12 hours of sunlight—a slight decline from the 13 hours enjoyed during the summer months of July and August. This transition marks a subtle shift towards autumn, as the days gradually shorten in anticipation of the cooler months ahead. Following the peak daylight of June, when the longest days illuminate the landscape with 14 hours of light, the trend reveals a gentle decrease leading toward October's 11 hours. This rhythm of changing daylight not only signifies the shifting seasons but also invites a sense of reflection as nature prepares for rest, painting the skies with the warm hues of early autumn.
In September, Taihu experiences a pleasant average wind speed of 3.9 m/s (9 mph), a slight increase from the quieter August. This gentle breeze signals the transition from summer's warmth to the crispness of autumn, complementing the region's stunning natural beauty. Notably, the wind speeds mark a varied seasonal pattern, with July showcasing the strongest gusts at 4.9 m/s (11 mph), before tapering off in the late summer months. As September unfolds, the conditions become ideal for outdoor activities, inviting locals and visitors alike to enjoy the serene landscapes that Taihu has to offer, all under the embrace of calming winds.
Weather in Taihu varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Taihu, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly contrasting weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 34°C (93°F), with an average of 25°C (77°F). This month also sees significant rainfall, totaling 121 mm (4.8 in) over approximately 12 days, contributing to a high humidity level of 81%. In contrast, January experiences much cooler conditions, with temperatures spanning from a chilly -7°C (19°F) to a maximum of 16°C (62°F), averaging around 5°C (41°F). The precipitation is lower at 69 mm (2.7 in) over 8 days, accompanied by decreased humidity at 70%. The differences in temperature and moisture levels clearly illustrate the seasonal shift from the warm, humid days of September to the cold, dry weather of January. For more specific insights on January weather, visit Taihu weather in January.
September and February present a striking contrast in weather. September typically experiences milder temperatures with a range of 17°C to a max of 34°C (63°F to 93°F) and high humidity at 81%. It also sees considerable precipitation, averaging 121 mm over 12 days. In contrast, February is much cooler, with temperatures ranging from a minimum of -4°C to a maximum of 22°C (25°F to 71°F), and lower humidity at 73%. The amount of precipitation in February is also less, averaging 72 mm over 10 days. For more detailed weather information, visit Taihu weather in February.
September and March exhibit notable differences in weather patterns. September boasts warmer temperatures, with averages around 25°C (77°F) and highs reaching up to 34°C (93°F), making it a more summer-like month. In contrast, March sees much cooler temperatures, with an average of 12°C (54°F) and lows dipping to 1°C (33°F). While both months experience precipitation on approximately 12 days, September has a higher total rainfall of 121 mm (4.8 in) compared to March's 90 mm (3.6 in). Despite the variations in temperature and precipitation, both months share a consistent humidity level of 81%. For more detailed insights into March weather, you can visit Taihu weather in March.
September and April present distinct contrasts in weather conditions. In September, temperatures can reach a high of 34°C (93°F) with an average of 25°C (77°F), creating a warm atmosphere, while April's temperatures range from a cool 5°C (42°F) to a comfortable 30°C (86°F), averaging at 17°C (62°F). Although September experiences more rainfall at 121 mm (4.8 in) over 12 days, April sees slightly less precipitation at 81 mm (3.2 in) over 10 days. Humidity levels are also noteworthy, with September's humidity at 81% compared to April's higher 87%. For more detailed insights into April weather patterns, you can visit Taihu weather in April.
In comparing the weather between September and May, one can observe notable differences and similarities. September tends to be warmer with average temperatures around 25°C (77°F) compared to May's 22°C (72°F). However, May boasts slightly higher maximum temperatures, reaching up to 35°C (96°F), while September peaks at 34°C (93°F). Both months experience considerable precipitation, with September receiving 121 mm (4.8 in) over 12 days, and May slightly more at 125 mm (4.9 in) over 10 days. Humidity levels are also higher in May at 87%, compared to September's 81%. For more detailed insights into May's weather patterns, you can explore Taihu weather in May.
When comparing the weather in September and June, we observe a few notable differences. September experiences slightly cooler temperatures, with a minimum of 17°C (63°F) and a maximum of 34°C (93°F), while June tends to be a bit warmer, with a minimum of 18°C (65°F) and a maximum of 36°C (97°F). Additionally, June sees higher precipitation levels, totaling 187 mm (7.4 in) over 13 days, compared to September's 121 mm (4.8 in) over 12 days. Humidity levels are also greater in June at 89%, compared to 81% in September. For a more detailed overview of June weather, you can check this link: Taihu weather in June.
When comparing the weather in September and July, we see notable differences in temperature and precipitation. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 34°C (93°F), with an average of 25°C (77°F) and humidity at 81%. In contrast, July experiences higher temperatures, with a minimum of 20°C (69°F), an average of 29°C (84°F), and a maximum soaring up to 40°C (103°F). Additionally, July has significantly more precipitation, totaling 283 mm (11.2 in) over 15 days, compared to September's 121 mm (4.8 in) over 12 days. The humidity in July is also higher at 93%, making it feel more oppressive. For a closer look at July's weather, check out Taihu weather in July.
In comparing the weather of September to August, September features a slightly cooler range of temperatures, with minimums around 17°C (63°F) and maximums reaching 34°C (93°F), compared to August’s warmer minimum of 22°C (72°F) and maximum of 37°C (99°F). Additionally, September experiences more precipitation over fewer days, accumulating 121 mm (4.8 in) across 12 days, while August sees 158 mm (6.2 in) spread over 14 days. Humidity levels are marginally lower in September at 81% compared to the higher 91% in August. For a more detailed look at August weather, you can visit Taihu weather in August.
September and October showcase a distinct shift in weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 34°C (93°F), with an average of 25°C (77°F). This month also experiences significant rainfall, totaling 121 mm (4.8 in) over 12 days, alongside high humidity at 81%. In contrast, October brings cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 31°C (88°F), creating an average of 19°C (67°F). Precipitation decreases notably to 55 mm (2.2 in) over just 7 days, and humidity remains fairly stable at 80%. This transition signifies a move from warmer, wetter conditions to a cooler, drier atmosphere. For more detailed information, visit Taihu weather in October.
September and November present significantly different weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a scorching maximum of 34°C (93°F), with an average temperature of 25°C (77°F). The month also experiences substantial rainfall, with 121 mm (4.8 in) of precipitation over 12 days, contributing to a high humidity level of 81%. In contrast, November sees a marked drop in temperature, with a minimum of 3°C (38°F) and an average of 14°C (57°F), peaking at 26°C (78°F). Precipitation decreases to 50 mm (2.0 in) across 8 days, and humidity remains slightly elevated at 82%. For a detailed look at November weather, you can check Taihu weather in November.
September and December weather show a striking contrast in temperature and precipitation. In September, temperatures typically range from a mild 17°C (63°F) at night to a warm average of 25°C (77°F), peaking at a hot 34°C (93°F). This month also experiences considerable rainfall, with approximately 121 mm (4.8 in) of precipitation over 12 days, and humidity levels remain high at 81%. In contrast, December brings a chill, with temperatures dropping significantly to a minimum of -6°C (22°F), an average temperature of only 7°C (45°F), and a maximum of 18°C (64°F). Precipitation decreases to 50 mm (2.0 in) over just 7 days, and humidity levels lower slightly to 77%. For more detailed information, check Taihu weather in December.
As September arrives in Taihu, the weather undergoes a noticeable shift, blending the warmth of summer with the early whispers of autumn. Average temperatures begin to drop, providing a refreshing contrast to the sweltering heat experienced in July and August. While humidity remains high, at around 81%, and precipitation increases, leading to about 12 days of rain, the overall climate becomes more temperate and manageable compared to the peak summer months. This transitional period marks a beautiful time to experience the lush landscapes and vibrant culture of Taihu. For more insights into the seasonal patterns, visit Taihu Climate.