Last updated: August 21, 2025
September in Guangzhou, China brings a warm welcome as temperatures reach a maximum of 31°C (88°F), with an enjoyable average of 16°C (61°F). Visitors can expect a fair share of rain, with 93 mm (3.7 in) of precipitation spread over approximately 10 days, contributing to the city's characteristic high humidity of 82%. This month enchants with a blend of warmth and moisture, creating a vibrant atmosphere, ideal for exploring the rich culture and unique landscape of Guangzhou.
In September, Guangzhou experiences a delightful transition from the summer heat, with temperatures becoming more moderate and comfortable. The average temperature hovers around 16°C (61°F), while daytime highs can reach a pleasant 31°C (88°F), perfect for outdoor activities and exploring the city's vibrant culture. The nighttime lows drop to a cool 2°C (37°F), providing a refreshing contrast to the daytime warmth. This month marks a noticeable shift as the searing summer temperatures wane, paving the way for the crispness of autumn. With a blend of warmth and coolness, September is an ideal time to enjoy the city's scenic landscapes and lively festivities.
September in Guangzhou, China, marks the tail end of the rainy season, with precipitation levels reaching 93 mm (3.7 in) over approximately 10 days. This substantial rainfall continues the trend established in the preceding summer months, where June, July, and August collectively showcase significant downpours, notably July's peak at 146 mm (5.7 in). Despite a decrease from the earlier months of summer, September's moisture remains critical for local agriculture and replenishing natural water sources. As the month transitions into autumn, rainfall begins to taper off, foreshadowing a shift to drier months ahead. The gradual decline in precipitation underscores the seasonal rhythm of Guangzhou, moving from the intense summer saturation towards milder, more manageable weather patterns.
As summer wanes, September in Guangzhou, China, features a notable humidity level of 82%, slightly dipping from the peak levels of the previous two months but still quite substantial. This pattern reflects an overarching trend of increasing humidity from the drier winter months, with levels gradually rising from 70% in January to a peak of 85% in August. Following the summer surge, September's humidity indicates a transition into the milder fall season while still retaining that signature southern dampness. As the city prepares for autumn, residents can expect the air to remain heavy with moisture, but a gradual retreat is on the horizon as the temperatures cool in the months to come.
In September, Guangzhou experiences a UV Index of 6, placing it in the high exposure category. This marks a slight decrease from the intense summer months, specifically July and August, where the UV Index peaked at 9 and 8, respectively. As the days begin to shorten with the arrival of autumn, the recommended burn time extends to 25 minutes, offering a bit more leeway for outdoor activities. However, caution is still advised, as skin can still be vulnerable to sun damage. As observed throughout the year, the UV levels fluctuate significantly, with the highest readings occurring in the peak summer months, making awareness of the UV Index essential for residents and visitors alike. For more information, visit Guanghou UV Index.
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As September rolls into Guangzhou, the city's bright sunshine persists, offering an impressive 282 hours of daylight. This marks a slight decrease from the peak summer months, where July and June bathed the area in nearly 350 hours of sunlight. Interestingly, while September’s hours remain significantly higher than the earlier months of the year, including January's mere 198 hours, a clear trend emerges: the transition into autumn initiates a gradual decline in sunlight as the year progresses. This ebbing brightness sets the stage for the cooler months ahead, gently shifting the atmosphere from the vibrant energy of summer towards the more reflective and mild tones of fall.
In September, the likelihood of sunny weather in Guangzhou, China is approximately 45%, offering a modest chance for sunshine as summer transitions into autumn. This month shows a slight uptick from the summer's low percentages, particularly from July's mere 24% and August's 37%. Although September does not compete with the sunnier months like January (68%) or October (66%), it does present an opportunity for clearer skies compared to the wetter months preceding it. As the temperatures begin to cool, the transition into October suggests a return to more favorable sunny conditions, making September a brief interlude in Guangzhou's weather cycle.
As summer winds down in Guangzhou, China, September witnesses a gentle transition in daylight, with an average of 12 hours illuminating the city each day. This marks a noticeable decline from the sun-drenched months of May through August, which boasted up to 15 hours of daylight. The gradual decrease from summer's peak showcases the rhythm of nature as autumn approaches, paving the way for shorter days ahead. Compared to the 10 hours in October and even fewer in the following months, September serves as a bridge, allowing residents to savor the softness of lingering light before the onset of winter. The ebb and flow of daylight not only enhance the city's beautiful landscapes but also invite a sense of change and anticipation as the seasons shift.
As September arrives in Guangzhou, a gentle breeze graces the city with an average wind speed of 2.9 m/s (6 mph), slightly up from the languid gusts of the summer months. This subtle increase hints at the transition into autumn, as the winds begin to gather strength in the following months. July and August experience the calmest winds of the year, averaging just 2.6 to 2.7 m/s, creating a sense of stasis before the invigorating shifts of fall. As the region moves into October, a notable uptick to 3.3 m/s (7 mph) signals a refreshing change, promising blustery days ahead that invigorate the spirit and beckon outdoor adventures. Overall, the wind patterns in Guangzhou reflect a rhythmic dance between the seasons, as the city shifts from the warmth of summer into the invigorating embrace of autumn.
Weather in Guanghou varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Guanghou, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in September is characterized by a significant warmth, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 31°C (88°F) and an average of 16°C (61°F). This month also experiences considerable humidity at 82%, along with 93 mm (3.7 in) of precipitation spread over 10 days. In contrast, January presents a starkly different climate, with frigid temperatures dipping as low as -30°C (-22°F) and an average temperature of -16°C (3°F). The month is predominantly dry, receiving only 2 mm (0.1 in) of precipitation and typically having no rainy days, along with a moderate humidity of 70%. This highlights the dramatic seasonal shift from the warm, humid days of September to the bitter cold of January. For further information, you can view Guanghou weather in January.
September and February showcase striking contrasts in weather. September typically sees temperatures ranging from a mild 16°C (61°F) on average to a warm maximum of 31°C (88°F), accompanied by considerable precipitation of 93 mm (3.7 in) over about 10 days, alongside high humidity levels at 82%. In contrast, February plunges into the depths of winter with an average temperature of -12°C (11°F), where lows can reach as frigid as -28°C (-18°F) and highs cap at just 12°C (53°F). The month sees minimal precipitation at only 4 mm (0.2 in) over just a single day, and humidity dips to 60%. For more detailed insights on weather patterns, you can view Guanghou weather in February.
September and March showcase strikingly different weather patterns. In September, temperatures range from a chilly 2°C (37°F) at night to a warm 31°C (88°F) during the day, with an average of 16°C (61°F). This month experiences considerable rainfall, totaling 93 mm (3.7 in) over approximately 10 days, leading to high humidity levels around 82%. In contrast, March presents a much colder picture, with temperatures plummeting as low as -20°C (-3°F) at night and reaching a maximum of 22°C (73°F) during the day, averaging -1°C (30°F). Precipitation is minimal in March, at only 5 mm (0.2 in) over just 1 day, and the humidity drops to 60%. For those interested in a detailed look at the weather during this time, you can check Guanghou weather in March.
September and April present contrasting weather patterns, with September generally offering warmer temperatures. In September, the average temperature is around 16°C (61°F), with a minimum of 2°C (37°F) and a maximum of 31°C (88°F), while April tends to be cooler, averaging 8°C (47°F) with a minimum of -8°C (18°F) and a maximum of 30°C (85°F). Additionally, September experiences significantly more rainfall, totaling 93 mm (3.7 in) over approximately 10 days, compared to April's 24 mm (0.9 in) over just 3 days. Humidity is also notably higher in September at 82%, compared to April's 57%. For a closer look at the specific weather conditions in April, check out Guanghou weather in April.
In September, temperatures range from a minimum of 2°C (37°F) to a maximum of 31°C (88°F), with an average temperature of 16°C (61°F). The month sees significant precipitation, averaging 93 mm (3.7 in) over about 10 days, and high humidity levels at 82%. In contrast, May enjoys a wider temperature range from a chilly -1°C (31°F) to a scorching 37°C (100°F), while also maintaining the same average temperature of 16°C (61°F). However, it experiences far less rainfall, with only 39 mm (1.6 in) across 5 days and lower humidity at 58%. For more detailed information, you can visit Guanghou weather in May.
In comparing the weather conditions of September and June, June tends to be warmer overall, with average temperatures reaching 21°C (70°F) and maximums soaring to 41°C (106°F), while September has a cooler average of 16°C (61°F) and peaks at 31°C (88°F). Both months experience similar levels of precipitation, with June recording 95 mm (3.8 in) over 11 days and September slightly lower at 93 mm (3.7 in) across 10 days. Despite the similar rainfall, humidity levels are more pronounced in September at 82%, compared to June's 76%. For a glimpse into the weather specifics during June, you can refer to Guanghou weather in June.
When comparing the weather in September to that of July, several key differences emerge. September experiences a wider temperature range, with minimums dipping to 2°C (37°F) and maximums reaching 31°C (88°F), while July is consistently warmer with minimums at 13°C (56°F) and maximums soaring to 37°C (98°F). Additionally, July sees significantly higher average temperatures, around 25°C (77°F), compared to September's average of 16°C (61°F). Precipitation is also more pronounced in July, with 146 mm (5.7 in) over 12 days, as opposed to September's 93 mm (3.7 in) across 10 days. Humidity levels are relatively similar, with July at 84% and September slightly lower at 82%. For more detailed insights into July's weather, you can check Guanghou weather in July.
In comparing the weather of September and August, September experiences cooler temperatures, with a minimum of 2°C (37°F) and an average of 16°C (61°F), contrasting sharply with August's warmer minimum of 8°C (47°F) and average of 21°C (71°F). The maximum temperatures are also lower in September, reaching 31°C (88°F) compared to August's peak of 34°C (93°F). Moreover, September sees less precipitation, totaling 93 mm (3.7 in) over 10 days, while August is wetter, with 141 mm (5.5 in) over 14 days. Humidity remains relatively high in both months, at 82% in September and 85% in August. For more details on August weather, you can visit Guanghou weather in August.
September generally features warmer temperatures, with a minimum of 2°C (37°F) and an average of 16°C (61°F), peaking at a maximum of 31°C (88°F). The month sees a fair amount of rainfall, totaling 93 mm (3.7 in) over about 10 days, contributing to a high humidity of 82%. In contrast, October experiences a more dramatic drop in temperatures, with a minimum of -10°C (14°F) and an average of 7°C (44°F), although it can still reach up to 30°C (87°F) on warmer days. Precipitation decreases significantly to just 19 mm (0.7 in) over only 3 days, and humidity drops slightly to 77%. For more detailed insights into October's climate, check out Guanghou weather in October.
September experiences a wide temperature range, with minimums around 2°C (37°F) and maximums peaking at 31°C (88°F), averaging a comfortable 16°C (61°F). The month is marked by significant precipitation, totaling 93 mm (3.7 in) over approximately 10 days, resulting in high humidity levels at 82%. In contrast, November brings much colder conditions, with temperatures dropping to a minimum of -21°C (-6°F) and averaging -5°C (24°F), while the maximum reaches only 15°C (60°F). Precipitation is significantly lower at just 8 mm (0.3 in) over one day, leading to a decrease in humidity to 61%. For more details on the weather during November, you can visit Guanghou weather in November.
In September, the weather is warm and variable, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 31°C (88°F) and an average of 16°C (61°F). The month sees significant precipitation, totaling 93 mm (3.7 in) over about 10 days, accompanied by high humidity levels of 82%.
In contrast, December brings a dramatic drop in temperatures, with a minimum of -29°C (-19°F) and a maximum of 7°C (45°F), averaging at -15°C (6°F). This month is much drier, with only 4 mm (0.1 in) of precipitation and no recorded rainy days, and the humidity decreases to 62%. For more details on December weather patterns, you can explore Guanghou weather in December.
As summer transitions to autumn, September in Guanghou offers a warm retreat, with temperatures remaining notably higher than during the cold winter months. While cool breezes begin to sweep through, the humidity level remains elevated, creating a muggy atmosphere that contrasts sharply with the dry chilly air of December and January. Rainfall increases slightly, resulting in more precipitation days compared to the drier late spring, yet it’s still manageable for outdoor activities. This month represents a unique blend of lingering warmth and the first hints of cooler weather, making it a distinctive time in Guanghou's annual climate. For more insights into the city's weather patterns throughout the year, visit Guanghou Climate.