September Weather in Riyue, China

Last updated: August 23, 2025

In September, the average temperature in Riyue, China hovers around 8°C (46°F), offering a refreshing climate. Expect minimums of -3°C (28°F) and maximums reaching up to 20°C (69°F). This month sees a precipitation amount of 140 mm (5.5 in) across approximately 21 days, contributing to an average humidity of 82%. Embrace the cozy atmosphere that this time of year brings!

September Temperature in Riyue

In September in Riyue, the average temperature is 8°C (46°F). Maximum temperatures can reach 20°C (69°F), while minimums can dip as low as -3°C (28°F). Be prepared for a mix of mild and chilly weather when traveling this time of year.

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

The chart illustrates September temperature patterns in Riyue, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riyue, September typically has an average temperature of 8°C (46°F), with highs reaching up to 20°C (69°F) and lows dropping to around -3°C (28°F).

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

September Precipitation in Riyue

In Riyue in September, the total precipitation amount reaches 140 mm (5.5 in) over a span of 21 days.

September Precipitation Trends in Riyue

The chart displays monthly precipitation patterns in Riyue, 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 Riyue, September typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 21 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 Riyue

In Riyue in September humidity is 82%. With an average temperature of 8°C (46°F), this humidity feels like a thick, damp blanket wrapping around you, making travel uncomfortable and creating a sense of heaviness in the air that can sap your energy quickly.

September Average Humidity in Riyue

This chart illustrates the average monthly humidity levels in Riyue, 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 Riyue is approximately 82%, 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 Riyue

In Riyue in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Riyue.

Maximum UV Index Levels in Riyue for September

The chart shows the monthly maximum UV Index (UVI) for Riyue 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 Riyue typically reaches 11, which falls under the extreme exposure category.

Data source: Riyue 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 Riyue Compares to Other Months

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

This table compares monthly weather conditions in Riyue, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	7 mm (0.3 inches)	74%	moderate
February Weather	-8°C (19°F)	9 mm (0.4 inches)	80%	high
March Weather	-2°C (29°F)	26 mm (1.0 inches)	81%	very high
April Weather	2°C (36°F)	61 mm (2.4 inches)	78%	extreme
May Weather	6°C (43°F)	94 mm (3.7 inches)	71%	extreme
June Weather	10°C (50°F)	164 mm (6.5 inches)	77%	extreme
July Weather	12°C (54°F)	182 mm (7.2 inches)	77%	extreme
August Weather	11°C (53°F)	191 mm (7.5 inches)	82%	extreme
September Weather	8°C (46°F)	140 mm (5.5 inches)	82%	extreme
October Weather	1°C (35°F)	62 mm (2.4 inches)	85%	very high
November Weather	-5°C (24°F)	13 mm (0.5 inches)	79%	high
December Weather	-10°C (15°F)	6 mm (0.2 inches)	71%	moderate