Last updated: August 21, 2025
In September, Hongqiao experiences a balmy climate, with temperatures ranging from a maximum of 35°C (96°F) to a minimum of 17°C (63°F), creating an average of 25°C (78°F). This month's weather is characterized by high humidity levels at 75%, making it feel warmer. While rainfall is prevalent, totaling 124 mm (4.9 in) across 12 days, the precipitation adds a refreshing touch to the late-summer atmosphere. Whether you’re exploring the vibrant local culture or enjoying the scenic views, September in Hongqiao promises a mix of warm sunshine and occasional showers.
September in Hongqiao, China, marks a delightful transition as summer fades into autumn. With minimum temperatures averaging around 17°C (63°F) and highs reaching up to 35°C (96°F), the month offers a comfortable warmth, encouraging outdoor activities and exploration. The average temperature settles at a pleasant 25°C (78°F), striking a perfect balance between the lingering heat of August and the cooler days that follow in October. This month is characterized by a notable drop from the peak summer heat, indicating a shift in the season, while still providing ample sunshine and mild evenings—making it an ideal time to enjoy the city's vibrant culture and beautiful landscapes.
In September, Hongqiao experiences a significant dip in precipitation compared to the summer months, with a total of 124 mm (4.9 in) of rain falling over 12 days. This marks a notable decrease from August's 207 mm (8.1 in) on 15 days, indicating a gradual transition towards drier autumn conditions. As the rainy season begins to ease, September offers a refreshing change, allowing for more outdoor activities while still retaining enough humidity to keep the landscape lush. The overall trend from June to September highlights a peak in rainfall during the summer, followed by this tapering off, paving the way for the cooler, drier months ahead.
In September, Hongqiao, China experiences a notable shift in humidity, averaging 75% as the summer heat begins to wane. This marks a decrease from the high levels of 90% in July and 88% in August, reflecting a transition towards less humid conditions typical of autumn. The humidity levels in September are relatively lower than those of the preceding months but still remain above the year’s average for the earlier part of the year. Following September’s drop, humidity levels slightly rise again in October to 76%, indicating a gradual return to more stable atmospheric patterns as the region prepares for the cooler months ahead. Overall, September serves as a bridge between the peak summer humidity and the more moderate levels that define the fall season in Hongqiao.
As September rolls in Hongqiao, the UV Index remains notably high at 10, categorizing the exposure as very high and requiring a burn time of just 15 minutes. This trend closely follows the intense summer months, where the UV Index peaked at 11 from June through August. Although September sees a slight decrease, the UV levels still demand caution for outdoor activities, echoing the broader pattern of increasing UV exposure as the year progresses. With autumn approaching, it's essential to stay vigilant, protecting your skin against potential UV damage. For more information, visit the Hongqiao UV Index.
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In September, Hongqiao enjoys a delightful 255 hours of sunshine, marking a mild decline from the robust summer peak of 301 hours in August. This transition hints at the waning summer rays, yet September still holds onto the golden glow, revealing a trend where daylight gradually recedes as autumn approaches. As the months progress, sunshine hours tend to fluctuate—rising steadily from the depths of winter in January with only 150 hours, to a striking crescendo in mid-summer. Comparatively, September's generous hours suggest that while summer fades, the warmth lingers, bridging the seasonal gap into the cooler months ahead.
As summer fades and autumn begins, September in Hongqiao, China, offers a relatively promising chance of sunshine, with probabilities sitting at 47%. This marks a notable increase compared to the sunniest months earlier in the year, such as July with only 17% and June at 23%. The shift towards more favorable weather patterns is a welcoming change, following the notably gloomy summer months. Furthermore, September's sunny prospects come in just below October's 44% and November's 52%, suggesting a gradual, positive trend as the year progresses. This transition offers a delightful opportunity for outdoor activities as the temperatures cool and the skies clear, making it a great time to enjoy the beauty of the season.
As September arrives in Hongqiao, China, the daylight begins to wane, offering around 12 hours of sunlight—a slight decline from the peak of 14 hours experienced in June. This month marks a transitional phase, where the long, sun-drenched days of summer gradually hand over to the crispness of autumn. Following September, daylight continues to decrease, dropping to 11 hours in October and reaching a minimum of 10 hours during the winter months. The gradual shift in daylight duration not only influences the local ecosystem but also invites residents and visitors alike to savor the changing scenery as nature prepares for the cooler months ahead.
As September breezes into Hongqiao, China, the average wind speed gently rises to 3.3 m/s (7 mph), showcasing a consistent and pleasant airflow that characterizes this transitional month. Following the peak winds of July at 4.0 m/s, September offers a refreshing change, slightly easing from the summer’s gusty embrace while still maintaining a brisk atmosphere. This month reflects a balance between the cooling of summer highs and the approach of autumn, as the winds shift subtly but surely, indicating the seasonal transition ahead. The steady wind pattern observed throughout the year, contrasting with the variance of summer, suggests that autumn is ready to unveil its own rhythm in the coming months.
Weather in Hongqiao varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hongqiao, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warmth and humidity, with temperatures ranging from a comfortable 17°C (63°F) at night to a scorching average high of 35°C (96°F) during the day. The month also sees considerable rainfall, with about 124 mm (4.9 in) of precipitation spread across 12 days, resulting in a humidity level of around 75%. In stark contrast, January brings much colder conditions, with temperatures dipping as low as -7°C (20°F) and averaging only 5°C (42°F) during the day. Precipitation is lighter in January, totaling 70 mm (2.8 in) over just 9 days, and humidity remains lower at 70%. For more details on January's weather, you can check Hongqiao weather in January.
In comparing the weather of September and February, it is evident that the two months present strikingly different climates. September typically enjoys warmer temperatures, with minimums around 17°C (63°F) and averages peaking at 25°C (78°F), while February experiences a significant chill, with minimums dropping to -2°C (28°F) and an average of just 7°C (45°F). Precipitation is also more frequent in September, with 124 mm (4.9 in) over 12 days, compared to February's 73 mm (2.9 in) over 10 days. Both months exhibit similar humidity levels, around 75% for September and 73% for February, but the overall experience is characterized by September's warmth versus February's cold. For a detailed look at February conditions, check out Hongqiao weather in February.
When comparing the weather in September and March, notable differences emerge. September boasts warmer temperatures, with a minimum of 17°C (63°F) and an average high of 35°C (96°F), while March's temperatures are much cooler, ranging from a minimum of 3°C (38°F) to a maximum of 27°C (81°F). Additionally, September experiences higher precipitation, totaling 124 mm (4.9 in) over 12 days, compared to March's 100 mm (3.9 in) over 13 days. Humidity levels are also slightly higher in March at 82%, while September maintains a humidity level of 75%. For further insights into the climate, you can explore Hongqiao weather in March.
When comparing the weather in September and April, we see distinct differences in temperature and humidity. September typically boasts warmer temperatures, with minimums around 17°C (63°F) and maximums reaching up to 35°C (96°F), contributing to an average of 25°C (78°F). In contrast, April experiences cooler temperatures, ranging from a minimum of 7°C (45°F) to a maximum of 32°C (90°F), resulting in an average temperature of 17°C (64°F).
Precipitation is also noteworthy, as September sees more rainfall with 124 mm (4.9 in) spread over 12 days, while April has a total of 80 mm (3.1 in) over just 8 days. Humidity levels are relatively high in both months, but September is slightly less humid at 75% compared to April's 86%. For more specific information about the weather in April, you can check out Hongqiao weather in April.
In September, the weather is generally warmer, with average temperatures reaching 25°C (78°F) and highs peaking at 35°C (96°F). The month experiences 124 mm (4.9 in) of precipitation over about 12 days, coupled with a humidity level of 75%. In contrast, May is slightly cooler, with average temperatures around 23°C (73°F) and a max temperature of 36°C (97°F). Despite having similar precipitation levels—128 mm (5.1 in) over 11 days—May exhibits higher humidity at 85%. For a detailed look at weather patterns, check out Hongqiao weather in May.
In September, the weather is characterized by a minimum temperature of 17°C (63°F) and a maximum of 35°C (96°F), leading to a warm average of 25°C (78°F). With 124 mm (4.9 in) of precipitation occurring over 12 days, humidity remains at a moderate 75%. In contrast, June sees slightly cooler minimum temperatures at 18°C (65°F) and a maximum reaching 36°C (97°F), again averaging 25°C (78°F). However, it experiences significantly higher rainfall, totaling 245 mm (9.7 in) spread across 15 days, resulting in increased humidity levels at 85%. For more detailed information, visit Hongqiao weather in June.
When comparing the weather in September and July, it's evident that July is both hotter and more humid. The average temperature in July reaches 29°C (85°F), with maximum highs of up to 39°C (102°F), while September offers a cooler average of 25°C (78°F) and maximum temperatures of 35°C (96°F). Additionally, July experiences significantly higher precipitation, with 288 mm (11.3 in) falling over 17 days compared to September's 124 mm (4.9 in) over 12 days. The humidity is also notably greater in July at 90%, compared to September's 75%. For more detailed insights into July weather, refer to Hongqiao weather in July.
In comparing the weather patterns of September and August, we find that September sees a decrease in both temperature and humidity levels. The average temperature in September is a comfortable 25°C (78°F), with a maximum of 35°C (96°F), in contrast to August's warmer average of 30°C (86°F) and peak of 37°C (98°F). Additionally, September experiences less rainfall, with a total of 124 mm (4.9 in) over 12 days, compared to August's 207 mm (8.1 in) over 15 days. The humidity in September averages 75%, significantly lower than August’s steamy 88%. For more details on August weather, you can check out Hongqiao weather in August.
September and October showcase a distinct transition in weather patterns. September tends to be warmer, with average temperatures ranging from a pleasant 25°C (78°F) to a peak of 35°C (96°F), and higher humidity at 75%. In contrast, October cools down significantly, featuring average temperatures of 20°C (68°F) and a maximum of 32°C (90°F). Additionally, October experiences less rainfall, accumulating only 52 mm (2.1 in) over about 7 days, compared to September's 124 mm (4.9 in) across 12 days. This shift signifies a move from the summer heat of September to the more moderate autumn conditions of October. For more detailed insights on the weather, check out Hongqiao weather in October.
September and November present a stark contrast in weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a sweltering maximum of 35°C (96°F), with an average of 25°C (78°F). This month typically experiences considerable rainfall, totaling 124 mm (4.9 in) over approximately 12 days, alongside a humidity level of 75%. In contrast, November sees much cooler temperatures, with a minimum of 4°C (39°F) and an average of 14°C (58°F), peaking at 26°C (80°F). Precipitation decreases significantly to 44 mm (1.7 in) over about 8 days, and humidity climbs slightly to 84%. For more specific weather details, you can refer to Hongqiao weather in November.
September weather features a warm climate with average temperatures ranging from a low of 17°C (63°F) to a high of 35°C (96°F), while enjoying significant rainfall of 124 mm (4.9 in) over approximately 12 days. In contrast, December experiences a much cooler environment, with temperatures dipping to a minimum of -4°C (25°F) and averaging around 8°C (46°F), peaking at 18°C (65°F). Precipitation in December is also lighter, totaling 54 mm (2.1 in) across just 7 days, with humidity levels remaining high at 77%. For more details on the December weather in this region, visit Hongqiao weather in December.
As September arrives in Hongqiao, the weather transitions towards more comfortable temperatures, offering a delightful respite from the summer heat. With averages hovering around a pleasant 25°C (78°F), it’s a perfect time for outdoor activities, even though the month occasionally sees higher peaks of 35°C (96°F). Unlike the oppressive humidity of July and August, the 75% humidity provides a refreshing atmosphere, though you might still encounter some rain, with 12 days of precipitation totaling around 124 mm (4.9 in). This shift creates an inviting environment where the vibrant colors of early autumn start to emerge. For more insight into the changing patterns of the local climate, be sure to visit Hongqiao Climate.