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September Weather in Chengdong, China

Last updated: August 22, 2025

The average temperature in Chengdong, China during September is a warm 26°C (79°F). Expect temperatures to vary, with a minimum of 15°C (60°F) and a maximum soaring up to 38°C (101°F). Be prepared for some rain, as the area experiences an average precipitation of 94 mm (3.7 in) over 11 days. With an average humidity of 78%, it’s a good idea to stay hydrated and enjoy the warmth!

September Temperature in Chengdong

In September in Chengdong, the average temperature is 26°C (79°F). The maximum can reach 38°C (101°F), while the minimum can be as low as 15°C (60°F). Therefore, it's advisable to pack lightweight clothing for the warm days and a light jacket for cooler evenings.

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

The chart illustrates September temperature patterns in Chengdong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chengdong, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (101°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec444656647277848579685847
Data source: Temperature data for Chengdong 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 Chengdong

In Chengdong in September, the precipitation amount is 94 mm (3.7 in) over the course of 11 days.

September Precipitation Trends in Chengdong

The chart displays monthly precipitation patterns in Chengdong, 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 Chengdong, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec59661159117527022414594595957
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chengdong

In Chengdong in September, humidity is 78%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making travel a bit sluggish as the air hangs thick, leaving you in need of frequent breaks to hydrate and find shade.

September Average Humidity in Chengdong

This chart illustrates the average monthly humidity levels in Chengdong, 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 Chengdong is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%73%80%86%88%89%91%88%79%79%80%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chengdong

In Chengdong in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Chengdong.

Maximum UV Index Levels in Chengdong for September

The chart shows the monthly maximum UV Index (UVI) for Chengdong 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 Chengdong typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6710101212121211875
Data source: Chengdong 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 Chengdong Compares to Other Months

Weather in Chengdong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Chengdong, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Chengdong, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)59 mm (2.3 inches)68%high
February Weather8°C (47°F)66 mm (2.6 inches)73%high
March Weather13°C (56°F)115 mm (4.5 inches)80%very high
April Weather18°C (64°F)91 mm (3.6 inches)86%very high
May Weather22°C (73°F)175 mm (6.9 inches)88%extreme
June Weather25°C (77°F)270 mm (10.6 inches)89%extreme
July Weather29°C (84°F)224 mm (8.8 inches)91%extreme
August Weather29°C (85°F)145 mm (5.7 inches)88%extreme
September Weather26°C (79°F)94 mm (3.7 inches)78%extreme
October Weather20°C (68°F)59 mm (2.3 inches)79%very high
November Weather14°C (58°F)59 mm (2.3 inches)80%high
December Weather8°C (47°F)57 mm (2.2 inches)80%moderate

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