September Weather in Hejiayan, China

Last updated: August 23, 2025

In Hejiayan, China, the average temperature in September hovers around 18°C (65°F), providing a mild climate for visitors. However, temperatures can vary significantly, with minimums reaching 10°C (51°F) and maximums climbing to 29°C (84°F). Expect a fair amount of precipitation, with 178 mm (7.0 in) potentially falling over 19 days. The air tends to be quite humid as well, with an average humidity of 89%.

September Temperature in Hejiayan

In September in Hejiayan, the average temperature is 18°C (65°F). Maximum temperatures can reach 29°C (84°F), while the minimum can drop to as low as 10°C (51°F). This pleasant weather makes Hejiayan an ideal destination for travelers seeking a comfortable climate.

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

The chart illustrates September temperature patterns in Hejiayan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hejiayan, September typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 10°C (51°F).

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

September Precipitation in Hejiayan

In Hejiayan in September, the total precipitation amount is 178 mm (7.0 in), occurring over 19 days.

September Precipitation Trends in Hejiayan

The chart displays monthly precipitation patterns in Hejiayan, 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 Hejiayan, September typically receives around 178 mm (7.0 inches) of precipitation spread over approximately 19 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 Hejiayan

In Hejiayan in September, humidity is 89%. With an average temperature of 18°C (65°F), this humidity feels like wrapping yourself in a damp blanket while traveling, making it sticky and uncomfortable for outdoor activities.

September Average Humidity in Hejiayan

This chart illustrates the average monthly humidity levels in Hejiayan, 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 Hejiayan 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 Hejiayan

In Hejiayan in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Hejiayan.

Maximum UV Index Levels in Hejiayan for September

The chart shows the monthly maximum UV Index (UVI) for Hejiayan 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 Hejiayan typically reaches 10, which falls under the very high exposure category.

Data source: Hejiayan 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 Hejiayan Compares to Other Months

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

This table compares monthly weather conditions in Hejiayan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	21 mm (0.8 inches)	85%	moderate
February Weather	4°C (40°F)	27 mm (1.1 inches)	87%	high
March Weather	9°C (49°F)	52 mm (2.0 inches)	90%	very high
April Weather	14°C (57°F)	76 mm (3.0 inches)	85%	very high
May Weather	18°C (64°F)	85 mm (3.4 inches)	81%	extreme
June Weather	21°C (70°F)	128 mm (5.0 inches)	86%	extreme
July Weather	23°C (74°F)	168 mm (6.6 inches)	87%	extreme
August Weather	23°C (74°F)	199 mm (7.8 inches)	88%	extreme
September Weather	18°C (65°F)	178 mm (7.0 inches)	89%	very high
October Weather	12°C (54°F)	159 mm (6.2 inches)	90%	very high
November Weather	7°C (46°F)	42 mm (1.6 inches)	88%	moderate
December Weather	2°C (36°F)	24 mm (1.0 inches)	88%	moderate