September Weather in Chengdong, China

Last updated: August 22, 2025

In September, the average temperature in Chengdong, China is a delightful 23°C (74°F). Temperatures can range from a refreshing 16°C (61°F) to a sizzling 36°C (98°F). This month also sees 199 mm (7.8 in) of precipitation spread over 18 days, contributing to a 77% average humidity that keeps the air pleasantly moist.

September Temperature in Chengdong

In September in Chengdong, the average temperature is 23°C (74°F), with maximums reaching up to 36°C (98°F) and minimums dropping as low as 16°C (61°F). This delightful range makes it a great time for travelers to enjoy outdoor activities while still finding comfortable spots to relax.

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 23°C (74°F), with highs reaching up to 36°C (98°F) and lows dropping to around 16°C (61°F).

Data source: Temperature data for Chengdong generated using information from the Copernicus Climate Change Service.

September Precipitation in Chengdong

In Chengdong in September, the precipitation amount is 199 mm (7.8 in) over the course of 18 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 199 mm (7.8 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Chengdong

In Chengdong in September, humidity is 77%. With an average temperature of 23°C (74°F), this humidity feels like being enveloped in a warm, sticky blanket, making travel somewhat uncomfortable and requiring frequent hydration breaks to enjoy the sights without feeling overheated.

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 77%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	42 mm (1.7 inches)	72%	moderate
February Weather	9°C (48°F)	63 mm (2.5 inches)	76%	high
March Weather	14°C (57°F)	127 mm (5.0 inches)	87%	very high
April Weather	18°C (65°F)	170 mm (6.7 inches)	82%	very high
May Weather	21°C (71°F)	158 mm (6.2 inches)	83%	extreme
June Weather	24°C (76°F)	203 mm (8.0 inches)	84%	extreme
July Weather	27°C (82°F)	233 mm (9.2 inches)	87%	extreme
August Weather	28°C (84°F)	145 mm (5.7 inches)	85%	extreme
September Weather	23°C (74°F)	199 mm (7.8 inches)	77%	extreme
October Weather	18°C (64°F)	148 mm (5.8 inches)	81%	very high
November Weather	13°C (55°F)	74 mm (2.9 inches)	86%	high
December Weather	8°C (47°F)	39 mm (1.5 inches)	81%	moderate