nomadseason

September Weather in Youyun, China

Last updated: August 22, 2025

In September, the average temperature in Youyun, China hovers around 4°C (40°F). Expect a brisk range with minimums plummeting to -14°C (7°F) and maximums reaching up to 16°C (61°F). Rainfall is a frequent visitor, totaling 131 mm (5.2 in) spread over 21 days, while the average humidity remains high at 88%. Prepare accordingly for a chilly, wet month!

September Temperature in Youyun

In September in Youyun, the average temperature is 4°C (40°F). The maximum can reach 16°C (61°F), and the minimum can be as low as -14°C (7°F). It's a good time to pack layers for your trip, as the weather can vary significantly throughout the day.

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

The chart illustrates September temperature patterns in Youyun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Youyun, September typically has an average temperature of 4°C (40°F), with highs reaching up to 16°C (61°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec581724334247464027136
Data source: Temperature data for Youyun generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Youyun

In Youyun in September, the total precipitation amount is 131 mm (5.2 in) spread over 21 days.

September Precipitation Trends in Youyun

The chart displays monthly precipitation patterns in Youyun, 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 Youyun, September typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec1620284067145121151131722012
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Youyun

In Youyun in September, humidity is 88%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less enjoyable and prompting you to seek cozy indoor activities instead.

September Average Humidity in Youyun

This chart illustrates the average monthly humidity levels in Youyun, 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 Youyun is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%78%77%73%80%85%87%89%88%82%73%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Youyun

In Youyun in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Youyun.

Maximum UV Index Levels in Youyun for September

The chart shows the monthly maximum UV Index (UVI) for Youyun 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 Youyun typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec58111416161514131185
Data source: Youyun 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 Youyun Compares to Other Months

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

This table compares monthly weather conditions in Youyun, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-15°C (5°F)16 mm (0.6 inches)71%moderate
February Weather-13°C (8°F)20 mm (0.8 inches)78%very high
March Weather-8°C (17°F)28 mm (1.1 inches)77%extreme
April Weather-4°C (24°F)40 mm (1.6 inches)73%extreme
May Weather1°C (33°F)67 mm (2.6 inches)80%extreme
June Weather6°C (43°F)145 mm (5.7 inches)85%extreme
July Weather8°C (47°F)121 mm (4.8 inches)87%extreme
August Weather8°C (47°F)151 mm (6.0 inches)89%extreme
September Weather4°C (40°F)131 mm (5.2 inches)88%extreme
October Weather-3°C (27°F)72 mm (2.8 inches)82%extreme
November Weather-11°C (13°F)20 mm (0.8 inches)73%very high
December Weather-14°C (6°F)12 mm (0.5 inches)67%moderate

Compare Youyun's Climate with Cities Worldwide