September Weather in Hekou, China

Last updated: August 22, 2025

In September, the average temperature in Hekou, China is a pleasant 16°C (61°F). However, temperatures can range from a cool 7°C (45°F) to a warm 26°C (79°F). Expect about 102 mm (4.0 in) of precipitation over 15 days, contributing to an average humidity of 89%.

September Temperature in Hekou

In September in Hekou, the average temperature is 16°C (61°F). Maximums can reach 26°C (79°F), while minimums can drop as low as 7°C (45°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Hekou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hekou, September typically has an average temperature of 16°C (61°F), with highs reaching up to 26°C (79°F) and lows dropping to around 7°C (45°F).

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

September Precipitation in Hekou

In Hekou in September, the precipitation amount is 102 mm (4.0 in) over the course of 15 days.

September Precipitation Trends in Hekou

The chart displays monthly precipitation patterns in Hekou, 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 Hekou, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 15 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 Hekou

In Hekou in September, humidity is 89%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities feel sluggish and sticky, which can be quite challenging for travelers looking to explore.

September Average Humidity in Hekou

This chart illustrates the average monthly humidity levels in Hekou, 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 Hekou is approximately 89%, 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 Hekou

In Hekou 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 Hekou.

Maximum UV Index Levels in Hekou for September

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

Data source: Hekou 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 Hekou Compares to Other Months

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

This table compares monthly weather conditions in Hekou, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	15 mm (0.6 inches)	85%	moderate
February Weather	-1°C (31°F)	20 mm (0.8 inches)	87%	high
March Weather	6°C (44°F)	36 mm (1.4 inches)	90%	very high
April Weather	11°C (52°F)	57 mm (2.3 inches)	85%	extreme
May Weather	15°C (59°F)	75 mm (2.9 inches)	81%	extreme
June Weather	19°C (66°F)	99 mm (3.9 inches)	86%	extreme
July Weather	21°C (70°F)	129 mm (5.1 inches)	87%	extreme
August Weather	20°C (69°F)	129 mm (5.1 inches)	88%	extreme
September Weather	16°C (61°F)	102 mm (4.0 inches)	89%	extreme
October Weather	10°C (50°F)	93 mm (3.7 inches)	90%	very high
November Weather	4°C (39°F)	23 mm (0.9 inches)	88%	high
December Weather	-2°C (28°F)	14 mm (0.6 inches)	88%	moderate