September Weather in Si'erbao, China

Last updated: August 22, 2025

In September, the average temperature in Si'erbao, China reaches a pleasant 21°C (70°F). Expect a minimum of 10°C (50°F) and a maximum of 29°C (85°F) during this time. With an average precipitation of 68 mm (2.7 in) spread over 7 days, you may want to pack an umbrella. Additionally, the humidity sits at a comfortable 72%, making it a great time to explore!

September Temperature in Si'erbao

In September in Si'erbao, the average temperature is 21°C (70°F). Maximum temperatures can reach 29°C (85°F), while minimums can drop as low as 10°C (50°F). This pleasant climate makes it an excellent time for travelers to explore and enjoy outdoor activities.

September Weather in Si'erbao: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Si'erbao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si'erbao, September typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (85°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Si'erbao

In Si'erbao in September, the precipitation amount is 68 mm (2.7 in) over the course of 7 days.

September Precipitation Trends in Si'erbao

The chart displays monthly precipitation patterns in Si'erbao, 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 Si'erbao, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 7 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 Si'erbao

In Si'erbao in September, humidity is 72%. With an average temperature of 21°C (70°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sticky and sweaty, but still manageable for traveling if you stay hydrated and take regular breaks in the shade.

September Average Humidity in Si'erbao

This chart illustrates the average monthly humidity levels in Si'erbao, 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 Si'erbao is approximately 72%, 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 Si'erbao

In Si'erbao in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Si'erbao.

Maximum UV Index Levels in Si'erbao for September

The chart shows the monthly maximum UV Index (UVI) for Si'erbao 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 Si'erbao typically reaches 7, which falls under the high exposure category.

Data source: Si'erbao 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 Si'erbao Compares to Other Months

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

This table compares monthly weather conditions in Si'erbao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	2 mm (0.1 inches)	54%	low
February Weather	-3°C (27°F)	5 mm (0.2 inches)	44%	moderate
March Weather	4°C (39°F)	11 mm (0.4 inches)	48%	high
April Weather	11°C (53°F)	19 mm (0.8 inches)	55%	very high
May Weather	17°C (64°F)	44 mm (1.7 inches)	65%	very high
June Weather	22°C (72°F)	57 mm (2.2 inches)	71%	very high
July Weather	25°C (78°F)	94 mm (3.7 inches)	82%	extreme
August Weather	25°C (77°F)	229 mm (9.0 inches)	83%	very high
September Weather	21°C (70°F)	68 mm (2.7 inches)	72%	high
October Weather	13°C (55°F)	33 mm (1.3 inches)	76%	high
November Weather	5°C (41°F)	21 mm (0.8 inches)	66%	moderate
December Weather	-3°C (27°F)	4 mm (0.1 inches)	52%	low