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September Weather in Yi'an, China

Last updated: August 22, 2025

In September, the average temperature in Yi'an, China hovers around 22°C (71°F). Expect a minimum of 9°C (49°F) and a maximum of 35°C (96°F), showcasing a delightful range. This month typically brings about 52 mm (2.1 in) of precipitation, spread over 6 days, with an average humidity of 61%. Perfect for planning your activities!

September Temperature in Yi'an

In September in Yi'an, the average temperature is 22°C (71°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 9°C (49°F). This makes it a great time to visit for those who enjoy mild to warm weather, but be prepared for some fluctuations in temperature.

September Weather in Yi'an: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Yi'an, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yi'an, September typically has an average temperature of 22°C (71°F), with highs reaching up to 35°C (96°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec283448607179817971574431
Data source: Temperature data for Yi'an generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Yi'an

In Yi'an in September, the precipitation amount is 52 mm (2.1 in) over the course of 6 days.

September Precipitation Trends in Yi'an

The chart displays monthly precipitation patterns in Yi'an, 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 Yi'an, September typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec36144035441641315253163
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yi'an

In Yi'an in September humidity is 61%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making it a pleasant time for traveling, though you might want to stay hydrated and take breaks in shaded areas to fully enjoy your adventures.

September Average Humidity in Yi'an

This chart illustrates the average monthly humidity levels in Yi'an, 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 Yi'an is approximately 61%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec52%49%52%63%54%62%71%74%61%69%64%58%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yi'an

In Yi'an 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 Yi'an.

Maximum UV Index Levels in Yi'an for September

The chart shows the monthly maximum UV Index (UVI) for Yi'an 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 Yi'an typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101098632
Data source: Yi'an 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 Yi'an Compares to Other Months

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

This table compares monthly weather conditions in Yi'an, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)3 mm (0.1 inches)52%low
February Weather1°C (34°F)6 mm (0.2 inches)49%moderate
March Weather9°C (48°F)14 mm (0.6 inches)52%high
April Weather16°C (60°F)40 mm (1.6 inches)63%very high
May Weather22°C (71°F)35 mm (1.4 inches)54%very high
June Weather26°C (79°F)44 mm (1.7 inches)62%very high
July Weather27°C (81°F)164 mm (6.4 inches)71%very high
August Weather26°C (79°F)131 mm (5.1 inches)74%very high
September Weather22°C (71°F)52 mm (2.1 inches)61%very high
October Weather14°C (57°F)53 mm (2.1 inches)69%high
November Weather7°C (44°F)16 mm (0.6 inches)64%moderate
December Weather-1°C (31°F)3 mm (0.1 inches)58%low

Compare Yi'an's Climate with Cities Worldwide