September Weather in Xi'ao, China

Last updated: August 22, 2025

In Xi'ao, China, the average temperature in September hovers around 27°C (81°F), with a minimum dipping to 14°C (58°F) and a maximum soaring to 38°C (100°F). Expect about 100 mm (3.9 in) of precipitation spread over 16 days, accompanied by an average humidity of 61%. Stay prepared for a warm and occasionally damp month!

September Temperature in Xi'ao

In September in Xi'ao, the average temperature is 27°C (81°F), with maximums reaching up to 38°C (100°F) and minimums falling as low as 14°C (58°F). This makes it a great time for travelers to enjoy a wide range of outdoor activities while being prepared for both the heat and cooler evenings.

September Weather in Xi'ao: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Xi'ao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Xi'ao, September typically has an average temperature of 27°C (81°F), with highs reaching up to 38°C (100°F) and lows dropping to around 14°C (58°F).

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

September Precipitation in Xi'ao

In Xi'ao in September, the total precipitation amount reaches 100 mm (3.9 in) over the course of 16 days.

September Precipitation Trends in Xi'ao

The chart displays monthly precipitation patterns in Xi'ao, 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 Xi'ao, September typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 16 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 Xi'ao

In Xi'ao in September, humidity is 61%. With an average temperature of 27°C (81°F), this humidity feels like a warm, sticky embrace that can make traveling feel slightly sluggish, requiring frequent breaks and plenty of hydration to stay comfortable.

September Average Humidity in Xi'ao

This chart illustrates the average monthly humidity levels in Xi'ao, 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 Xi'ao 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 Xi'ao

In Xi'ao 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 Xi'ao.

Maximum UV Index Levels in Xi'ao for September

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

Data source: Xi'ao 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 Xi'ao Compares to Other Months

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

This table compares monthly weather conditions in Xi'ao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	42 mm (1.6 inches)	66%	high
February Weather	13°C (55°F)	70 mm (2.8 inches)	70%	very high
March Weather	17°C (63°F)	138 mm (5.4 inches)	77%	extreme
April Weather	20°C (69°F)	140 mm (5.5 inches)	76%	extreme
May Weather	25°C (76°F)	201 mm (7.9 inches)	85%	extreme
June Weather	27°C (80°F)	283 mm (11.1 inches)	80%	extreme
July Weather	29°C (84°F)	100 mm (3.9 inches)	87%	extreme
August Weather	28°C (83°F)	160 mm (6.3 inches)	84%	extreme
September Weather	27°C (81°F)	100 mm (3.9 inches)	61%	extreme
October Weather	22°C (73°F)	39 mm (1.5 inches)	62%	very high
November Weather	18°C (65°F)	39 mm (1.6 inches)	67%	very high
December Weather	12°C (55°F)	29 mm (1.1 inches)	74%	high