September Weather in Kaiyuan, China

Last updated: August 22, 2025

In September, the average temperature in Kaiyuan, China is a pleasant 22°C (73°F). Expect a range from a cool 14°C (58°F) to a warm 33°C (91°F). Be prepared for some rain, as 98 mm (3.9 in) of precipitation is expected over 16 days. With an average humidity of 81%, it’s a notably humid time of year.

September Temperature in Kaiyuan

In September in Kaiyuan, the average temperature is 22°C (73°F). Maximums can reach 33°C (91°F), while minimums can be as low as 14°C (58°F). This pleasant climate makes Kaiyuan an ideal destination for travelers seeking comfortable weather conditions.

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

The chart illustrates September temperature patterns in Kaiyuan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaiyuan, September typically has an average temperature of 22°C (73°F), with highs reaching up to 33°C (91°F) and lows dropping to around 14°C (58°F).

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

September Precipitation in Kaiyuan

In Kaiyuan in September, the total precipitation amount is 98 mm (3.9 in) recorded over a span of 16 days.

September Precipitation Trends in Kaiyuan

The chart displays monthly precipitation patterns in Kaiyuan, 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 Kaiyuan, September typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 16 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 Kaiyuan

In Kaiyuan in September, humidity is 81%. With an average temperature of 22°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities a bit more challenging but also invigorating, as you experience the vibrant atmosphere of the surroundings.

September Average Humidity in Kaiyuan

This chart illustrates the average monthly humidity levels in Kaiyuan, 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 Kaiyuan is approximately 81%, 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 Kaiyuan

In Kaiyuan in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Kaiyuan.

Maximum UV Index Levels in Kaiyuan for September

The chart shows the monthly maximum UV Index (UVI) for Kaiyuan 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 Kaiyuan typically reaches 13, which falls under the extreme exposure category.

Data source: Kaiyuan 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 Kaiyuan Compares to Other Months

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

This table compares monthly weather conditions in Kaiyuan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	30 mm (1.2 inches)	57%	very high
February Weather	14°C (58°F)	20 mm (0.8 inches)	67%	very high
March Weather	19°C (66°F)	19 mm (0.8 inches)	58%	extreme
April Weather	21°C (69°F)	56 mm (2.2 inches)	53%	extreme
May Weather	24°C (75°F)	42 mm (1.6 inches)	69%	extreme
June Weather	25°C (77°F)	112 mm (4.4 inches)	83%	extreme
July Weather	24°C (75°F)	192 mm (7.5 inches)	90%	extreme
August Weather	23°C (74°F)	168 mm (6.6 inches)	90%	extreme
September Weather	22°C (73°F)	98 mm (3.9 inches)	81%	extreme
October Weather	20°C (68°F)	70 mm (2.7 inches)	75%	extreme
November Weather	17°C (62°F)	14 mm (0.6 inches)	74%	very high
December Weather	13°C (56°F)	18 mm (0.7 inches)	69%	high