September Weather in Chatou, China

Last updated: August 22, 2025

In September, the average temperature in Chatou, China hovers around 21°C (71°F), offering a pleasant climate for outdoor activities. Expect minimum temperatures to dip to 8°C (47°F), while the mercury can rise as high as 35°C (95°F). During this month, anticipate 50 mm (2.0 in) of precipitation spread across 6 days, accompanied by an average humidity of 61%. Enjoy the diverse weather as you explore this vibrant destination!

September Temperature in Chatou

In September in Chatou, the average temperature is 21°C (71°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 8°C (47°F). This range makes Chatou an ideal destination for travelers seeking a pleasant climate for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Chatou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chatou, September typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (47°F).

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

September Precipitation in Chatou

In Chatou in September, the precipitation amount is 50 mm (2.0 in) over the course of 6 days.

September Precipitation Trends in Chatou

The chart displays monthly precipitation patterns in Chatou, 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 Chatou, September typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 6 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 Chatou

In Chatou in September humidity is 61%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet slightly sticky, ideal for leisurely strolls but perhaps uncomfortable for strenuous adventures.

September Average Humidity in Chatou

This chart illustrates the average monthly humidity levels in Chatou, 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 Chatou is approximately 61%, 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 Chatou

In Chatou in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Chatou.

Maximum UV Index Levels in Chatou for September

The chart shows the monthly maximum UV Index (UVI) for Chatou 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 Chatou typically reaches 8, which falls under the very high exposure category.

Data source: Chatou 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 Chatou Compares to Other Months

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

This table compares monthly weather conditions in Chatou, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	2 mm (0.1 inches)	52%	low
February Weather	0°C (33°F)	6 mm (0.2 inches)	49%	moderate
March Weather	8°C (47°F)	16 mm (0.6 inches)	52%	high
April Weather	15°C (59°F)	35 mm (1.4 inches)	63%	very high
May Weather	21°C (70°F)	32 mm (1.2 inches)	54%	very high
June Weather	26°C (78°F)	41 mm (1.6 inches)	62%	very high
July Weather	27°C (80°F)	171 mm (6.7 inches)	71%	very high
August Weather	26°C (78°F)	121 mm (4.7 inches)	74%	very high
September Weather	21°C (71°F)	50 mm (2.0 inches)	61%	very high
October Weather	13°C (56°F)	52 mm (2.0 inches)	69%	high
November Weather	6°C (43°F)	17 mm (0.7 inches)	64%	moderate
December Weather	-1°C (30°F)	3 mm (0.1 inches)	58%	low