September Weather in Heishui, China

Last updated: August 22, 2025

In September, the average temperature in Heishui, China hovers around 21°C (70°F), offering a pleasant climate for exploration. However, be prepared for temperature fluctuations; it can dip to a minimum of 13°C (55°F) and soar to a maximum of 32°C (91°F). With an average precipitation of 218 mm (8.6 in) spread over 19 days, a sturdy umbrella may be a wise companion. The average humidity of 71% adds a touch of mugginess, so dress accordingly to enjoy your stay!

September Temperature in Heishui

In September in Heishui, the average temperature is 21°C (70°F). Maximum temperatures can reach up to 32°C (91°F), while minimums can drop as low as 13°C (55°F). This pleasant climate makes Heishui an ideal destination for travelers looking to enjoy moderate weather and outdoor activities.

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

The chart illustrates September temperature patterns in Heishui, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heishui, September typically has an average temperature of 21°C (70°F), with highs reaching up to 32°C (91°F) and lows dropping to around 13°C (55°F).

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

September Precipitation in Heishui

In Heishui in September, the precipitation amount is 218 mm (8.6 in), occurring over the course of 19 days.

September Precipitation Trends in Heishui

The chart displays monthly precipitation patterns in Heishui, 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 Heishui, September typically receives around 218 mm (8.6 inches) of precipitation spread over approximately 19 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 Heishui

In Heishui in September, humidity is 71%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel slightly heavy and requiring regular breaks to stay refreshed while exploring.

September Average Humidity in Heishui

This chart illustrates the average monthly humidity levels in Heishui, 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 Heishui is approximately 71%, 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 Heishui

In Heishui 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 Heishui.

Maximum UV Index Levels in Heishui for September

The chart shows the monthly maximum UV Index (UVI) for Heishui 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 Heishui typically reaches 11, which falls under the extreme exposure category.

Data source: Heishui 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 Heishui Compares to Other Months

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

This table compares monthly weather conditions in Heishui, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	84 mm (3.3 inches)	67%	high
February Weather	5°C (41°F)	93 mm (3.7 inches)	73%	high
March Weather	10°C (51°F)	184 mm (7.2 inches)	84%	very high
April Weather	15°C (59°F)	177 mm (7.0 inches)	82%	extreme
May Weather	19°C (66°F)	277 mm (10.9 inches)	86%	extreme
June Weather	22°C (72°F)	271 mm (10.7 inches)	86%	extreme
July Weather	25°C (77°F)	287 mm (11.3 inches)	88%	extreme
August Weather	25°C (77°F)	194 mm (7.7 inches)	85%	extreme
September Weather	21°C (70°F)	218 mm (8.6 inches)	71%	extreme
October Weather	15°C (59°F)	134 mm (5.3 inches)	74%	very high
November Weather	10°C (51°F)	98 mm (3.9 inches)	85%	high
December Weather	5°C (41°F)	59 mm (2.3 inches)	75%	moderate