Last updated: August 21, 2025
September in Dongguan, China marks a transition into mild weather, characterized by a maximum temperature of 31°C (89°F) and a more comfortable average of 17°C (63°F). As temperatures begin to cool, the month experiences a minimum of 3°C (38°F). Rainfall is moderate, with an average precipitation of 51 mm (2.0 in) spread over approximately 7 days, creating a humid atmosphere at about 57%. This blend of warmth and occasional rain makes September a unique time to experience the region's lush landscapes and vibrant culture.
As September rolls in Dongguan, China, the climate begins to shift, offering a refreshing respite from the sweltering summer heat. Temperatures range from a mild 3°C (38°F) at night to a pleasant 31°C (89°F) during the day, with an average of 17°C (63°F), marking a transition towards cooler weather. This month clearly signals the end of the intense summer months, as maximum temperatures dip from the high 30s°C in August to more manageable levels. With crisp mornings and warm afternoons, September is an ideal time for outdoor activities and experiencing the city's vibrant culture before the chill of autumn sets in.
In September, Dongguan experiences a notable shift in precipitation patterns, with 51 mm (2.0 in) of rain spread over 7 days. This marks a decrease compared to the preceding months of intense rainfall, such as July and August, which were characterized by 112 mm and 105 mm respectively. As summer gives way to autumn, the rain becomes more sporadic, indicating a transitional phase in the region's climate. The consistency of rainfall in September provides essential moisture for the landscape, while also hinting at a respite from the heavier downpours of midsummer. This gradual decline not only emphasizes the rhythm of seasonal change but also highlights the unique climatic conditions of Dongguan as it prepares for the drier months ahead.
In September, humidity in Dongguan, China remains relatively stable at 57%, mirroring the levels observed in both January and June. This consistency in humidity offers a welcome reprieve from the higher peaks seen in the summer months, such as August's 61%. As the city transitions into autumn, one can observe a gradual increase leading into October, where humidity rises to 67%. This trend suggests a shift towards the wetter conditions typical of the fall season, while September itself serves as a comfortable bridge between the summer heat and the forthcoming autumn dampness. Overall, this time of year embodies a sense of balance in Dongguan’s humidity, creating a pleasant atmosphere before the seasonal shift intensifies.
In September, Dongguan, China experiences a very high UV Index of 8, with a burn time of just 15 minutes under the sun. This month marks a slight decrease from the peak UV levels reached in the summer months of July and June, which recorded extreme values of 11. Despite the dip, September still calls for caution as sun exposure can lead to damage within a quarter of an hour. Observing the trends from January through September, we see a progressive increase in UV levels, peaking in the summer before tapering off into the milder indices of October and November. Whether you’re enjoying outdoor activities or simply commuting, it’s essential to stay sun-smart in this period. For more detailed insights, check out the Dongguan UV Index.
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As September rolls in Dongguan, China, the city basks in an impressive 288 hours of sunshine, a notable continuation of the vibrant summer months. Following July's peak of 348 hours, the slight decrease in daylight hours reflects the transition into autumn, yet still showcases abundant sunlight. The steady rise from January's 217 hours through the warmer months underscores a clear trend of increasing brightness—March and April match at 303 hours, while May shines the brightest at 340 hours. Though the sun begins to retreat after September, with October dipping to 266 hours, the lingering warmth of late summer invites residents and visitors alike to enjoy the last rays of sunshine before winter settles in.
In Dongguan, China, September marks a transition towards more variable weather, with a 46% chance of sunny days. This figure is a decline from the warmer summer months, where July and August offer a more promising 61% and 51% sunshine likelihood, respectively. Interestingly, as the month progresses, the sunny prospects begin to pick up again towards October, which sits at 47%. Overall, September acts as a bridge from the bright summer days to the more overcast conditions of autumn, reflecting the city’s ongoing dance with sunlight as the seasons shift.
In September, Dongguan, China, experiences a significant transition as daylight begins to wane, offering approximately 12 hours of sunlight. This marks a gradual decline from the peak of 14 hours in the summer months of May through July. As we move through the year, daylight duration starts at just 9 hours in January and gradually increases to a seasonal high in June, before gently tapering off in the fall. The diminishing daylight in September hints at the onset of autumn, setting the stage for shorter days and cozier nights, while still providing a delightful balance of light and warmth.
As September rolls in Dongguan, the winds gently whisper their way through the city, averaging a modest 2.7 m/s (6 mph). This slight breeze is part of a seasonal trend that sees a gradual decrease in wind speed from the summer months. Following the peak in May with winds reaching 4.2 m/s (9 mph), the summer's robust gusts begin to wane, culminating in the soft, lull of early autumn. Notably, September's winds are slightly calmer than those in the previous month, reflecting a transition into the cooler, quieter days ahead as nature prepares for the approaching fall. The soft rustle of leaves accompanied by this gentle breeze invites a sense of tranquility, making September a serene time to embrace the changing season in Dongguan.
Weather in Dongguan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dongguan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present a stark contrast in weather conditions. In September, temperatures range from a mild minimum of 3°C (38°F) to a warm maximum of 31°C (89°F), with an average of 17°C (63°F). The month sees a moderate amount of precipitation at 51 mm (2.0 in), spread across 7 days, and maintains a humidity level of 57%. Conversely, January experiences much colder temperatures, dropping to a minimum of -25°C (-13°F) and peaking at only 8°C (47°F), with an average of -7°C (20°F). It is remarkably dry, receiving just 3 mm (0.1 in) of precipitation over a single day, while humidity remains consistent at 57%. For more details on January weather, you can visit Dongguan weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a comfortable minimum of 3°C (38°F) to a warm maximum of 31°C (89°F), with an average of 17°C (63°F). This month experiences about 51 mm (2.0 in) of precipitation over approximately 7 days, coupled with a humidity level of 57%. In contrast, February is much colder, with temperatures dipping to a minimum of -20°C (-4°F) and reaching a maximum of 17°C (62°F), averaging -3°C (27°F). Precipitation is minimal in February, with only 6 mm (0.3 in) falling over just 1 day, while humidity remains at a similar level of 56%. For more details, you can check Dongguan weather in February.
September and March offer contrasting weather experiences. In September, temperatures range from a cool 3°C (38°F) at night to a warm 31°C (89°F) during the day, with an average temperature of 17°C (63°F). The month sees a moderate level of precipitation, totaling 51 mm (2.0 in) over about 7 days, along with a humidity level of 57%. In contrast, March showcases cooler temperatures, with nighttime lows plunging to -8°C (18°F) and daytime highs reaching 25°C (77°F). The average temperature in March is only 5°C (42°F), and it experiences less rainfall, about 22 mm (0.8 in) over 4 days, while maintaining a slightly lower humidity level of 54%. For more detailed insights into this month, check out Dongguan weather in March.
September and April present contrasting weather patterns. In September, temperatures range from a chilly 3°C (38°F) to a warm 31°C (89°F), with an average of 17°C (63°F) and humidity at 57%. The month also experiences an average of 51 mm (2.0 in) of precipitation over seven days. In contrast, April features cooler temperatures, with a minimum of -5°C (22°F) and a maximum of 30°C (86°F), averaging around 12°C (53°F). While it is generally drier than September, April still sees about 33 mm (1.3 in) of rain over five days, with a slightly higher humidity of 64%. For a detailed look at how April weather unfolds in Dongguan, check out Dongguan weather in April.
In comparing the weather of September and May, both months feature relatively mild temperatures, with September averaging 17°C (63°F) and May slightly warmer at 18°C (64°F). September can experience a wider temperature range, with minimums dipping to 3°C (38°F) and maximums reaching up to 31°C (89°F), while May's temperatures can be more extreme, peaking at 35°C (95°F). Precipitation is more frequent in September, with 51 mm (2.0 in) spread over 7 days, compared to May's 35 mm (1.4 in) over just 4 days, making the latter the drier month. Additionally, humidity levels are slightly lower in May at 49%, compared to September's 57%. For a more detailed look at May’s weather, you can visit Dongguan weather in May.
In comparing the weather of September and June, we see notable differences in temperature and precipitation. September experiences a wider temperature range, with minimums dipping to 3°C (38°F) and maximums reaching up to 31°C (89°F), while June maintains a warmer average, ranging from a minimum of 9°C (48°F) to a high of 35°C (95°F). Additionally, September receives slightly more precipitation at 51 mm (2.0 in) over 7 days compared to June's 42 mm (1.6 in) over 5 days. Despite these variations, both months share the same humidity level of 57%, creating a consistently humid atmosphere. For a closer look at June's climate specifics, check out Dongguan weather in June.
September and July exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 31°C (89°F), with an average of 17°C (63°F), making it cooler than July. July experiences higher temperatures, with a minimum of 12°C (54°F) and a maximum of 36°C (96°F), resulting in a much warmer average of 24°C (75°F). Additionally, September has lower precipitation at 51 mm (2.0 in) over 7 days, compared to July's 112 mm (4.4 in) over 11 days, indicating a wetter month. The humidity levels are quite similar, with September at 57% and July slightly higher at 58%. For more information, check Dongguan weather in July.
In comparing the weather between September and August, September tends to be cooler, with a minimum temperature dropping to 3°C (38°F) compared to August's minimum of 10°C (50°F). The average temperature also reflects this decline, with September averaging 17°C (63°F) against August's warmer 22°C (71°F). Additionally, while September sees less precipitation at 51 mm (2.0 in) over 7 days, August experiences more rain, totaling 105 mm (4.2 in) across 10 days. Humidity levels are slightly lower in September at 57%, compared to August's 61%. For further details, you can check Dongguan weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures range from a mild 3°C (38°F) as a minimum to a warm 31°C (89°F) as a maximum, with an average of 17°C (63°F). The month experiences a total precipitation of 51 mm (2.0 in) over 7 days, accompanied by a relative humidity of 57%.
In contrast, October sees a significant drop in minimum temperatures, reaching as low as -6°C (22°F) and averaging around 9°C (49°F). Although the maximum can still hit 28°C (82°F), the overall feel is much cooler. Interestingly, precipitation remains the same at 51 mm (2.0 in) but is spread over just 6 days, and humidity rises to 67%.
For more specifics about this month’s weather, you can visit Dongguan weather in October.
September and November exhibit stark contrasts in weather. September boasts a milder range of temperatures, with daily averages around 17°C (63°F), reaching highs of 31°C (89°F), making it feel quite warm overall. In contrast, November sees a significant drop in temperatures, with averages plummeting to just 2°C (35°F) and minimums dipping to -13°C (9°F). This month also experiences considerably less precipitation, receiving only 15 mm (0.6 in) across 2 days compared to September’s 51 mm (2.0 in) over 7 days. Additionally, November's humidity levels are slightly higher at 64%, contributing to a chillier atmosphere. For more detailed insights, check out Dongguan weather in November.
In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 31°C (89°F), with an average of 17°C (63°F). The month experiences around 51 mm (2.0 in) of precipitation over approximately 7 days, accompanied by a humidity level of 57%. In contrast, December brings much colder conditions, with temperatures dropping to a minimum of -24°C (-11°F) and only rising to a maximum of 8°C (46°F), resulting in an average temperature of -7°C (20°F). Precipitation is minimal at just 3 mm (0.1 in) over a single day, while humidity rises slightly to 66%. This stark difference highlights the transition from the relatively warm and humid days of September to the frigid winter temperatures of December. For more details, you can check out Dongguan weather in December.
As summer gives way to fall, September in Dongguan showcases a unique transition in weather patterns. With temperatures gradually cooling from the sweltering highs of summer, the month averages around a comfortable 17°C, offering a welcome reprieve from the heat. Occasional rainfall, totaling 51 mm over about a week, adds a refreshing touch, nurturing the lush surroundings. The humidity sits at a moderate 57%, creating a pleasant atmosphere that's distinct from the more oppressive summer months. This blend of temperate conditions makes September an ideal time to explore the region. For a deeper understanding of what to expect throughout the year, visit Dongguan Climate.