September Weather in Yumen, China

Last updated: August 22, 2025

In Yumen, China, the average temperature in September hovers around 17°C (63°F), offering a pleasant climate. Expect minimums as low as 2°C (35°F) and maximums reaching up to 32°C (90°F). With only 6 mm (0.2 in) of precipitation spread across 0 days, the weather remains dry, complemented by an average humidity of just 34%. Perfect conditions to explore and enjoy the outdoors!

September Temperature in Yumen

In September in Yumen, the average temperature is 17°C (63°F). Maximums can reach 32°C (90°F) and minimums can be as low as 2°C (35°F). This makes it a great time for travelers to experience a comfortable climate while enjoying the various outdoor activities that Yumen has to offer.

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

The chart illustrates September temperature patterns in Yumen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yumen, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Yumen

In Yumen in September, the total precipitation amount is 6 mm (0.2 in), spread over a duration of 0 days.

September Precipitation Trends in Yumen

The chart displays monthly precipitation patterns in Yumen, 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 Yumen, September typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 0 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 Yumen

In Yumen in September humidity is 34%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing breeze that makes exploring the area comfortable and enjoyable for traveling.

September Average Humidity in Yumen

This chart illustrates the average monthly humidity levels in Yumen, 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 Yumen is approximately 34%, 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 Yumen

In Yumen 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 Yumen.

Maximum UV Index Levels in Yumen for September

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

Data source: Yumen 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 Yumen Compares to Other Months

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

This table compares monthly weather conditions in Yumen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	2 mm (0.1 inches)	59%	moderate
February Weather	-4°C (25°F)	2 mm (0.1 inches)	52%	moderate
March Weather	4°C (40°F)	2 mm (0.1 inches)	42%	high
April Weather	11°C (52°F)	7 mm (0.3 inches)	38%	very high
May Weather	17°C (63°F)	9 mm (0.4 inches)	31%	extreme
June Weather	22°C (71°F)	10 mm (0.4 inches)	27%	extreme
July Weather	24°C (75°F)	21 mm (0.8 inches)	28%	extreme
August Weather	23°C (73°F)	9 mm (0.4 inches)	30%	very high
September Weather	17°C (63°F)	6 mm (0.2 inches)	34%	very high
October Weather	8°C (46°F)	1 mm (0.0 inches)	48%	high
November Weather	0°C (31°F)	3 mm (0.1 inches)	55%	moderate
December Weather	-8°C (18°F)	3 mm (0.1 inches)	60%	moderate