September Weather in Heishan, China

Last updated: August 22, 2025

In September, the average temperature in Heishan, China is a pleasant 23°C (73°F). Expect a range from a comfortable 18°C (64°F) to a warm 26°C (79°F). During this time, you may encounter 63 mm (2.5 in) of precipitation spread over about 5 days, contributing to an average humidity of 74%.

September Temperature in Heishan

In September in Heishan, the average temperature is 23°C (73°F), with maximums reaching 26°C (79°F) and minimums dropping to as low as 18°C (64°F). This pleasant weather makes Heishan an ideal destination for travelers looking to enjoy comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Heishan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heishan, September typically has an average temperature of 23°C (73°F), with highs reaching up to 26°C (79°F) and lows dropping to around 18°C (64°F).

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

September Precipitation in Heishan

In Heishan in September, the precipitation amount is 63 mm (2.5 in) spread over a period of 5 days.

September Precipitation Trends in Heishan

The chart displays monthly precipitation patterns in Heishan, 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 Heishan, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 5 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Heishan

In Heishan in September humidity is 74%. With an average temperature of 23°C (73°F), this humidity feels like walking through a warm, enveloping fog, making outdoor activities more strenuous and requiring frequent breaks for hydration.

September Average Humidity in Heishan

This chart illustrates the average monthly humidity levels in Heishan, 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 Heishan is approximately 74%, 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 Heishan

In Heishan in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Heishan.

Maximum UV Index Levels in Heishan for September

The chart shows the monthly maximum UV Index (UVI) for Heishan 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 Heishan typically reaches 8, which falls under the very high exposure category.

Data source: Heishan 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 Heishan Compares to Other Months

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

This table compares monthly weather conditions in Heishan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	12 mm (0.5 inches)	65%	moderate
February Weather	1°C (34°F)	13 mm (0.5 inches)	62%	moderate
March Weather	5°C (41°F)	17 mm (0.7 inches)	69%	high
April Weather	10°C (49°F)	36 mm (1.4 inches)	81%	very high
May Weather	15°C (59°F)	47 mm (1.8 inches)	82%	very high
June Weather	20°C (68°F)	67 mm (2.6 inches)	86%	very high
July Weather	24°C (76°F)	68 mm (2.7 inches)	93%	very high
August Weather	25°C (78°F)	146 mm (5.8 inches)	91%	very high
September Weather	23°C (73°F)	63 mm (2.5 inches)	74%	very high
October Weather	17°C (63°F)	39 mm (1.6 inches)	72%	high
November Weather	11°C (51°F)	33 mm (1.3 inches)	71%	moderate
December Weather	4°C (39°F)	19 mm (0.8 inches)	69%	low