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September Weather in Dongguan, China

Last updated: August 22, 2025

In September, the average temperature in Dongguan, China is a pleasant 18°C (65°F). Visitors can expect a comfortable range with minimums dipping to 10°C (50°F) and highs reaching up to 29°C (85°F). However, be prepared for some rain, as 150 mm (5.9 in) of precipitation might occur over approximately 15 days. With an average humidity of 89%, it’s a good idea to pack accordingly!

September Temperature in Dongguan

In September in Dongguan, the average temperature is 18°C (65°F). Maximums can reach 29°C (85°F), while minimums can dip as low as 10°C (50°F). This climate makes Dongguan an ideal destination for travelers seeking mild weather and comfortable exploration opportunities.

September Weather in Dongguan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Dongguan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dongguan, September typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (85°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec343949576470757465544535
Data source: Temperature data for Dongguan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Dongguan

In Dongguan in September, the total precipitation amount is 150 mm (5.9 in) over a span of 15 days.

September Precipitation Trends in Dongguan

The chart displays monthly precipitation patterns in Dongguan, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Dongguan, September typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec17264363781171481501501293120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dongguan

In Dongguan in September, humidity is 89%. With an average temperature of 18°C (65°F), this humidity feels like wrapping yourself in a damp blanket while traveling, making it sticky and uncomfortable for outdoor activities.

September Average Humidity in Dongguan

This chart illustrates the average monthly humidity levels in Dongguan, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Dongguan is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%90%85%81%86%87%88%89%90%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dongguan

In Dongguan in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Dongguan.

Maximum UV Index Levels in Dongguan for September

The chart shows the monthly maximum UV Index (UVI) for Dongguan in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Dongguan typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110854
Data source: Dongguan September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Dongguan Compares to Other Months

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.

This table compares monthly weather conditions in Dongguan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)17 mm (0.7 inches)85%moderate
February Weather4°C (39°F)26 mm (1.0 inches)87%high
March Weather9°C (49°F)43 mm (1.7 inches)90%very high
April Weather14°C (57°F)63 mm (2.5 inches)85%very high
May Weather18°C (64°F)78 mm (3.1 inches)81%extreme
June Weather21°C (71°F)117 mm (4.6 inches)86%extreme
July Weather24°C (75°F)148 mm (5.8 inches)87%extreme
August Weather23°C (74°F)150 mm (5.9 inches)88%extreme
September Weather18°C (65°F)150 mm (5.9 inches)89%very high
October Weather12°C (54°F)129 mm (5.1 inches)90%very high
November Weather7°C (45°F)31 mm (1.2 inches)88%moderate
December Weather2°C (35°F)20 mm (0.8 inches)88%moderate

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