September Weather in Caiyuan, China

Last updated: August 22, 2025

In September, the average temperature in Caiyuan, China is a comfortable 25°C (78°F), with a minimum of 21°C (69°F) and a maximum reaching 29°C (84°F). Expect about 159 mm (6.3 in) of precipitation spread over 11 days, contributing to a high average humidity of 81%. Perfect for those who enjoy a tropical climate!

September Temperature in Caiyuan

In September in Caiyuan, the average temperature is 25°C (78°F), with maximums reaching 29°C (84°F) and minimums dipping as low as 21°C (69°F). This pleasant weather makes it an ideal time for outdoor activities and sightseeing in Caiyuan.

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

The chart illustrates September temperature patterns in Caiyuan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caiyuan, September typically has an average temperature of 25°C (78°F), with highs reaching up to 29°C (84°F) and lows dropping to around 21°C (69°F).

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

September Precipitation in Caiyuan

In Caiyuan in September, the precipitation amount is 159 mm (6.3 in), occurring over the course of 11 days.

September Precipitation Trends in Caiyuan

The chart displays monthly precipitation patterns in Caiyuan, 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 Caiyuan, September typically receives around 159 mm (6.3 inches) of precipitation spread over approximately 11 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 Caiyuan

In Caiyuan in September humidity is 81%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities less comfortable and requiring frequent breaks to stay hydrated.

September Average Humidity in Caiyuan

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

In Caiyuan 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 Caiyuan.

Maximum UV Index Levels in Caiyuan for September

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

Data source: Caiyuan 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 Caiyuan Compares to Other Months

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

This table compares monthly weather conditions in Caiyuan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	63 mm (2.5 inches)	70%	moderate
February Weather	8°C (47°F)	70 mm (2.7 inches)	73%	high
March Weather	11°C (52°F)	101 mm (4.0 inches)	81%	very high
April Weather	14°C (58°F)	82 mm (3.2 inches)	87%	very high
May Weather	19°C (67°F)	141 mm (5.6 inches)	87%	extreme
June Weather	23°C (73°F)	231 mm (9.1 inches)	89%	extreme
July Weather	26°C (79°F)	189 mm (7.4 inches)	93%	extreme
August Weather	28°C (82°F)	119 mm (4.7 inches)	91%	very high
September Weather	25°C (78°F)	159 mm (6.3 inches)	81%	very high
October Weather	21°C (71°F)	109 mm (4.3 inches)	80%	very high
November Weather	17°C (63°F)	73 mm (2.9 inches)	82%	high
December Weather	12°C (53°F)	67 mm (2.6 inches)	77%	moderate