September Weather in Siqian, China

Last updated: August 22, 2025

In Siqian, China, the average temperature in September is a warm 26°C (79°F). Expect a range of temperatures, with minimums as low as 14°C (58°F) and maximums soaring to 36°C (97°F). Be prepared for 140 mm (5.5 in) of rainfall spread over 18 days during the month, and enjoy the balmy climate with an average humidity of 62%.

September Temperature in Siqian

In September in Siqian, the average temperature is 26°C (79°F), with a maximum reaching 36°C (97°F) and a minimum dipping as low as 14°C (58°F). This makes for a pleasant climate perfect for exploring the local attractions and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Siqian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siqian, September typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (97°F) and lows dropping to around 14°C (58°F).

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

September Precipitation in Siqian

In Siqian in September, the precipitation amount is 140 mm (5.5 in) over the course of 18 days.

September Precipitation Trends in Siqian

The chart displays monthly precipitation patterns in Siqian, 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 Siqian, September typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 18 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 Siqian

In Siqian in September humidity is 62%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making travel enjoyable but slightly sticky, as the air wraps around you with a tropical touch.

September Average Humidity in Siqian

This chart illustrates the average monthly humidity levels in Siqian, 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 Siqian is approximately 62%, 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 Siqian

In Siqian 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 Siqian.

Maximum UV Index Levels in Siqian for September

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

Data source: Siqian 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 Siqian Compares to Other Months

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

This table compares monthly weather conditions in Siqian, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	48 mm (1.9 inches)	63%	high
February Weather	11°C (53°F)	90 mm (3.6 inches)	66%	very high
March Weather	16°C (62°F)	178 mm (7.0 inches)	77%	extreme
April Weather	19°C (67°F)	186 mm (7.3 inches)	73%	extreme
May Weather	24°C (75°F)	229 mm (9.0 inches)	85%	extreme
June Weather	26°C (79°F)	339 mm (13.4 inches)	83%	extreme
July Weather	28°C (83°F)	139 mm (5.5 inches)	89%	extreme
August Weather	27°C (82°F)	183 mm (7.2 inches)	88%	extreme
September Weather	26°C (79°F)	140 mm (5.5 inches)	62%	extreme
October Weather	21°C (70°F)	59 mm (2.3 inches)	56%	very high
November Weather	17°C (62°F)	56 mm (2.2 inches)	63%	very high
December Weather	11°C (52°F)	27 mm (1.1 inches)	70%	high