September Weather in Heihe, China

Last updated: August 22, 2025

In September, the average temperature in Heihe, China hovers around 14°C (57°F), making it a pleasant time to explore. However, be prepared for fluctuations, as temperatures can drop as low as -1°C (31°F) and rise to a warm 28°C (83°F). Expect precipitation of 84 mm (3.3 in) over approximately 10 days, with an average humidity of a humid 86%, adding to the charming atmosphere of the region.

September Temperature in Heihe

In September in Heihe, the average temperature is 14°C (57°F). The maximum can reach up to 28°C (83°F), while the minimum can dip as low as -1°C (31°F). Be prepared for a wide range of temperatures if you plan to travel during this time!

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

The chart illustrates September temperature patterns in Heihe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heihe, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (83°F) and lows dropping to around -1°C (31°F).

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

September Precipitation in Heihe

In Heihe in September, the precipitation amount is 84 mm (3.3 in) over a span of 10 days.

September Precipitation Trends in Heihe

The chart displays monthly precipitation patterns in Heihe, 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 Heihe, September typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 10 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 Heihe

In Heihe in September humidity is 86%. With an average temperature of 14°C (57°F), this humidity feels like a heavy blanket enveloping you, making travel feel oppressive and uncomfortably sticky.

September Average Humidity in Heihe

This chart illustrates the average monthly humidity levels in Heihe, 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 Heihe is approximately 86%, 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 Heihe

In Heihe in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Heihe.

Maximum UV Index Levels in Heihe for September

The chart shows the monthly maximum UV Index (UVI) for Heihe 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 Heihe typically reaches 5, which falls under the moderate exposure category.

Data source: Heihe 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 Heihe Compares to Other Months

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

This table compares monthly weather conditions in Heihe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-21°C (-5°F)	5 mm (0.2 inches)	89%	low
February Weather	-16°C (3°F)	4 mm (0.2 inches)	87%	low
March Weather	-4°C (25°F)	13 mm (0.5 inches)	76%	moderate
April Weather	5°C (41°F)	25 mm (1.0 inches)	71%	moderate
May Weather	13°C (55°F)	55 mm (2.2 inches)	74%	high
June Weather	18°C (65°F)	102 mm (4.0 inches)	82%	high
July Weather	23°C (73°F)	130 mm (5.1 inches)	86%	very high
August Weather	19°C (67°F)	164 mm (6.5 inches)	88%	very high
September Weather	14°C (57°F)	84 mm (3.3 inches)	86%	moderate
October Weather	4°C (39°F)	39 mm (1.6 inches)	84%	moderate
November Weather	-8°C (17°F)	20 mm (0.8 inches)	80%	low
December Weather	-20°C (-4°F)	6 mm (0.3 inches)	88%	low