September Weather in Caishan, China

Last updated: August 22, 2025

In September, the average temperature in Caishan, China hovers around 25°C (78°F), offering a pleasant climate for outdoor activities. Temperatures can range from a cool 16°C (62°F) to a toasty 36°C (96°F). Expect 107 mm (4.2 in) of precipitation over about 10 days, contributing to an average humidity of 73%. Enjoy the refreshing balance of warmth and moisture this season!

September Temperature in Caishan

In September in Caishan, the average temperature is 25°C (78°F), with maximums reaching up to 36°C (96°F) and minimums dropping as low as 16°C (62°F). This pleasant climate makes it an ideal destination for travelers seeking enjoyable weather and outdoor activities.

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

The chart illustrates September temperature patterns in Caishan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caishan, September typically has an average temperature of 25°C (78°F), with highs reaching up to 36°C (96°F) and lows dropping to around 16°C (62°F).

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

September Precipitation in Caishan

In Caishan in September, the precipitation amount is 107 mm (4.2 in) accumulated over a period of 10 days.

September Precipitation Trends in Caishan

The chart displays monthly precipitation patterns in Caishan, 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 Caishan, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 10 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 Caishan

In Caishan in September, humidity is 73%. With an average temperature of 25°C (78°F), this humidity feels like stepping into a warm, heavy blanket that wraps around you, making travel feel sluggish and requiring regular breaks to stay refreshed.

September Average Humidity in Caishan

This chart illustrates the average monthly humidity levels in Caishan, 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 Caishan is approximately 73%, 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 Caishan

In Caishan 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 Caishan.

Maximum UV Index Levels in Caishan for September

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

Data source: Caishan 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 Caishan Compares to Other Months

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

This table compares monthly weather conditions in Caishan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	61 mm (2.4 inches)	69%	high
February Weather	7°C (46°F)	89 mm (3.5 inches)	73%	high
March Weather	13°C (56°F)	143 mm (5.6 inches)	82%	very high
April Weather	18°C (65°F)	135 mm (5.3 inches)	86%	very high
May Weather	23°C (73°F)	190 mm (7.5 inches)	86%	very high
June Weather	26°C (79°F)	219 mm (8.6 inches)	86%	extreme
July Weather	29°C (84°F)	286 mm (11.3 inches)	90%	extreme
August Weather	29°C (85°F)	135 mm (5.3 inches)	86%	extreme
September Weather	25°C (78°F)	107 mm (4.2 inches)	73%	very high
October Weather	19°C (66°F)	39 mm (1.5 inches)	73%	very high
November Weather	14°C (57°F)	43 mm (1.7 inches)	80%	high
December Weather	8°C (46°F)	37 mm (1.5 inches)	79%	moderate