Last updated: August 21, 2025
September in Guangzhou, China showcases a vibrant transition as summer gradually gives way to autumn. The month experiences a maximum temperature peaking at 33°C (92°F), balanced by a comfortable average of 22°C (71°F) and cooler lows around 13°C (56°F). Rainfall is a significant aspect of September’s climate, with precipitation totaling 220 mm (8.7 in) over the course of 18 days, contributing to a humidity level that averages 71%. This blend of warmth and moisture creates a lush environment, making it an ideal time to experience the city's unique culture and natural beauty.
In September, Guangzhou experiences a delightful transition from the sweltering summer months, with temperatures beginning to ease. The minimum temperature hovers around 13°C (56°F), providing a welcome reprieve from the heat, while the average settles at a comfortable 22°C (71°F). As the month progresses, the maximum temperature can reach up to 33°C (92°F), showcasing that warmth still lingers. This blend of warmth and mildness makes September an ideal time to explore the city's vibrant culture and stunning landscapes, as the humidity gradually decreases and the days remain pleasantly sunny. Overall, September strikes a beautiful balance that marks the onset of autumn in Guangzhou, inviting both locals and travelers to enjoy the outdoors before cooler temperatures set in.
September in Guangzhou brings a notable uptick in precipitation, with an average of 220 mm (8.7 in) falling over 18 days. This increase reflects the transition from the sultry summer months, particularly notable when compared to August's 148 mm and only 17 rainy days. The rains are a key part of the monsoon season, often invigorating the lush greenery that characterizes the region. Interestingly, September's rainfall is substantial, yet it falls short of the peak seen in May, when the city experiences the highest precipitation levels of the year. As the month progresses, the rainfall begins to ease, setting the stage for the drier conditions typical of October, making September a critical month for both water replenishment and the vibrant life that thrives in this bustling city.
In Guanzhou, China, September marks a noticeable dip in humidity, dropping to 71% compared to the sweltering heights of summer. This month serves as a transitional period, following the peak humidity of 88% in July and 85% in August. As autumn approaches, the humidity begins to decrease, paving the way for more comfortable weather. Following September, humidity slightly rebounds to 74% in October, but remains lower than the summer months, suggesting a gradual shift towards drier conditions as the year progresses. Overall, September serves as a refreshing breath of relief before the humidity stabilizes throughout the fall months.
As September rolls into Guangzhou, China, the UV Index remains notably high at 11, categorized as extreme with a burn time of just 10 minutes. This marks a slight decrease from the heights of summer, where July peaked at 13, yet still demands caution for outdoor activities. The trend shows that as we transition from the scorching months of the year, the UV levels gradually taper down, but they remain a significant risk. Notably, the UV Index consistently hovers in the very high to extreme range from February through September, highlighting the need for proactive sun protection. Gearing up for the outdoors? Always stay informed and take necessary precautions! For more detailed insights, check the Guanzhou UV Index.
UV Risk Categories
As summer transitions to autumn, September in Guangzhou shines brightly with 208 hours of sunshine, reflecting a noteworthy dip from the sun-drenched heights of July and August, which basked in 292 and 302 hours, respectively. This month marks a shift as the city begins to embrace the cooler air of early fall, yet it still holds onto a generous amount of sunshine, surpassing all earlier months, with the exception of peak summer. This trend underscores a vibrant climate where sunshine lingers well into the autumn, bridging the warm embrace of summer with the crisp freshness of October. As the days shorten, the delightful September sun offers a beautiful backdrop for outdoor activities, making it a favored time for both locals and visitors alike.
In Guangzhou, China, September emerges as a standout month for sunshine, boasting an impressive 44% chance of sunny weather. This marks a significant increase compared to the preceding summer months, with July and August only offering 23% and 24% sunny days, respectively. As summer transitions into autumn, the likelihood of clear skies notably rises, providing a refreshing reprieve and an ideal backdrop for outdoor activities. The surge in sunshine in September not only heralds a change in seasons but also invites residents and visitors alike to enjoy the vibrant city in its sunlit splendor.
As the warm embrace of summer begins to wane, September in Guangzhou, China witnesses a subtle yet noticeable shift in daylight duration. Transitioning from the peak summer months, where sunlight graces the city for a generous 13 hours, September experiences a gentle decline, offering 12 hours of daylight. This change marks the beginning of autumn, as the days gradually grow shorter, leading into the cooler months of October and November, where daylight diminishes to 11 hours and 10 hours, respectively. Overall, the trend showcases the rhythmic ebb and flow of daylight throughout the year, reflecting nature's transitions and the approach of seasonal change.
As September arrives in Guangzhou, the city experiences a subtle but noticeable increase in wind speed, averaging 1.8 m/s (4 mph). This gentle breeze is a part of a pattern that sees the winds gradually pick up throughout the summer months, peaking in July before tapering off slightly in October. With the summer heat slowly giving way to the cooler autumn air, September's winds bring a refreshing reprieve, making it an ideal time for outdoor exploration. This slight uptick in wind speed not only adds to the city's vibrancy but also marks a shift towards the more comfortable dining and strolling seasons, as residents and visitors alike enjoy the interplay of warm sunshine and refreshing breezes.
Weather in Guanzhou varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Guanzhou, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather conditions. In September, temperatures range from a mild minimum of 13°C (56°F) to a sweltering maximum of 33°C (92°F), with an average of 22°C (71°F). This month sees significant rainfall, with 220 mm (8.7 in) spread over 18 days and humidity at 71%. In stark contrast, January experiences much colder temperatures, with a minimum of -5°C (22°F) and a maximum of 16°C (61°F), averaging only 4°C (40°F). Precipitation is lower in January at 92 mm (3.6 in) over 13 days, and humidity slightly decreases to 67%. For more detailed insights into January weather, you can check Guanzhou weather in January.
September and February present markedly different weather patterns. In September, temperatures range from a minimum of 13°C (56°F) to a scorching maximum of 33°C (92°F), with an average of 22°C (71°F). This month experiences significant rainfall, totaling 220 mm (8.7 in) over 18 days, and a humidity level of 71%. In contrast, February is much cooler, with temperatures dropping to a minimum of -3°C (27°F) and reaching a maximum of 24°C (75°F), averaging 6°C (43°F). February also sees less precipitation at 96 mm (3.8 in) over 17 days and slightly higher humidity at 73%. For more detailed information on the February climate, you can visit Guanzhou weather in February.
In comparing the weather between September and March, September tends to be much warmer, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 33°C (92°F), and an average temperature of 22°C (71°F). In contrast, March experiences cooler temperatures, ranging from a low of 2°C (36°F) to a high of 29°C (84°F), with an average of 11°C (53°F). While September has higher precipitation levels, averaging 220 mm (8.7 in) over 18 rainy days, March sees somewhat less rainfall at 156 mm (6.2 in) across 22 days. Additionally, humidity is higher in March at 84%, compared to 71% in September. For more detailed information about March weather, you can check Guanzhou weather in March.
In comparing the weather of September and April, September typically showcases warmer temperatures, with an average of 22°C (71°F) and highs reaching up to 33°C (92°F), while April experiences a cooler average of 15°C (60°F) and maximum temperatures capping at 30°C (87°F). However, September also brings about higher precipitation levels, with 220 mm (8.7 in) over 18 days compared to April's 160 mm (6.3 in) over 20 days. Additionally, humidity is notably higher in April at 82%, compared to September's 71%. For more details on the weather during April, you can check Guanzhou weather in April.
When comparing the weather in September and May, both months share similar high temperatures, peaking at around 33°C (91°F) to 33°C (92°F). However, September tends to be slightly warmer on average with temperatures ranging from a minimum of 13°C (56°F) to an average of 22°C (71°F), while May has a slightly cooler minimum of 10°C (50°F) and an average of 19°C (67°F). In terms of precipitation, May experiences more rainfall, with 267 mm (10.5 in) spread over 21 days, compared to September's 220 mm (8.7 in) over 18 days. Additionally, the humidity levels are higher in May at 86%, compared to September’s 71%. For more detailed insights, you can view Guanzhou weather in May.
When comparing the weather in September and June, it is evident that both months have similar temperature ranges, with September experiencing a minimum of 13°C (56°F) and an average of 22°C (71°F), while June has slightly warmer temperatures, starting at a minimum of 15°C (59°F) and averaging 23°C (74°F). Precipitation levels are notably higher in June, with 260 mm (10.2 in) occurring over 21 days compared to 220 mm (8.7 in) over 18 days in September. Additionally, humidity is higher in June at 86%, compared to September's 71%, making June feel more oppressively humid. For more specific insights on June’s climate, you can visit Guanzhou weather in June.
In comparing the weather between September and July, September generally sees slightly cooler temperatures, with a minimum of 13°C (56°F) and an average of 22°C (71°F), compared to July’s warmer range, which has a minimum of 18°C (65°F) and an average of 26°C (78°F). While both months experience significant rainfall, September has a higher precipitation total at 220 mm (8.7 in) over 18 days compared to July's 202 mm (7.9 in) over 19 days. Additionally, the humidity is noticeably higher in July at 88%, making it feel more oppressive compared to September’s 71%. For more details on July’s weather, you can visit Guanzhou weather in July.
In comparing the weather between September and August, we see notable differences in temperature and moisture. September experiences a range with minimum temperatures of 13°C (56°F) and maximums reaching 33°C (92°F), resulting in an average of 22°C (71°F). In contrast, August is warmer, with a minimum of 17°C (62°F), an average of 26°C (79°F), and a peak temperature of 36°C (97°F). While September sees an increase in precipitation, totaling 220 mm (8.7 in) over 18 days, August has less rainfall at 148 mm (5.8 in) across 17 days. Additionally, humidity levels are higher in August at 85%, compared to September's 71%. For more detailed insights into August's climate, check Guanzhou weather in August.
September typically presents warmer weather, with average temperatures around 22°C (71°F) and maximum highs reaching up to 33°C (92°F), while October sees a noticeable drop in the average temperature to 16°C (60°F) and a lower minimum of 8°C (46°F). Although both months experience similar levels of precipitation, with September receiving 220 mm (8.7 in) and October 142 mm (5.6 in), October has slightly fewer rainy days, with 17 compared to September's 18. Additionally, humidity remains relatively high in both months, with October slightly higher at 74% compared to September's 71%. For more details, check out Guanzhou weather in October.
September and November present distinctly different weather patterns. In September, temperatures range from a mild 13°C (56°F) at night to a hot 33°C (92°F) during the day, with an average of 22°C (71°F). This month experiences significant rainfall, totaling 220 mm (8.7 in) across 18 days, and a humidity level of 71% adds to the overall warmth and moisture. In contrast, November sees a much cooler climate, with temperatures dipping to a minimum of 2°C (36°F) and peaking at 24°C (76°F), averaging around 11°C (52°F). The precipitation reduces to 108 mm (4.2 in) over 14 days, though humidity rises to 85%, making the air feel damp. For more details, check out Guanzhou weather in November.
In September, the weather is significantly warmer, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 33°C (92°F), accompanied by high humidity at 71%. The month sees considerable precipitation, averaging 220 mm (8.7 in) over 18 days, making it a wet period. In contrast, December offers a much cooler climate, with temperatures ranging from -5°C (23°F) to a maximum of 18°C (65°F) and an average of 6°C (43°F). Precipitation reduces to 67 mm (2.7 in) over 13 days, and humidity remains high at 75%. For those interested in more details, you can check Guanzhou weather in December.
As September rolls into Guanzhou, the weather transitions into a more comfortable phase compared to the sweltering summer months. The temperatures begin to dip slightly, offering a reprieve with averages around a pleasant warmth, while the humidity remains high, creating a tropical feel throughout the month. However, September also brings increased rainfall, with many days experiencing showers, which sets it apart from the drier periods. This combination of warmth and frequent precipitation creates a unique atmosphere, perfect for experiencing the lush landscapes of the region. For a deeper look into how Guanzhou's weather evolves throughout the year, explore Guanzhou Climate.