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September Weather in Yilong, China

Last updated: August 22, 2025

In September, the average temperature in Yilong, China hovers around 21°C (71°F), offering a pleasant climate for outdoor activities. Expect temperatures to dip to a minimum of 13°C (56°F) and soar to a maximum of 30°C (86°F). However, be prepared for some rain, as 121 mm (4.7 in) of precipitation can fall over approximately 20 days. Don't forget to stay hydrated, as the average humidity level reaches a notable 82%!

September Temperature in Yilong

In September in Yilong, the average temperature is 21°C (71°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 13°C (56°F). This pleasant climate makes Yilong an ideal destination for travelers seeking comfortable weather and outdoor activities.

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

The chart illustrates September temperature patterns in Yilong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yilong, September typically has an average temperature of 21°C (71°F), with highs reaching up to 30°C (86°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec555765687274727271666155
Data source: Temperature data for Yilong 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 Yilong

In Yilong in September, the total precipitation amount is 121 mm (4.7 in) over a span of 20 days.

September Precipitation Trends in Yilong

The chart displays monthly precipitation patterns in Yilong, 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 Yilong, September typically receives around 121 mm (4.7 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec3722266047126261254121782529
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yilong

In Yilong in September humidity is 82%. With an average temperature of 21°C (71°F), this humidity feels like a warm, muggy embrace that can make traveling feel sticky and exhausting, urging you to seek shade and hydration as you explore the vibrant surroundings.

September Average Humidity in Yilong

This chart illustrates the average monthly humidity levels in Yilong, 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 Yilong is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec55%61%48%40%56%80%90%90%82%72%73%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yilong

In Yilong in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Yilong, you can check here.

Maximum UV Index Levels in Yilong for September

The chart shows the monthly maximum UV Index (UVI) for Yilong 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 Yilong typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121315141514141297
Data source: Yilong 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 Yilong Compares to Other Months

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

This table compares monthly weather conditions in Yilong, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)36 mm (1.4 inches)55%very high
February Weather14°C (57°F)22 mm (0.9 inches)61%very high
March Weather18°C (65°F)26 mm (1.0 inches)48%extreme
April Weather20°C (68°F)60 mm (2.4 inches)40%extreme
May Weather22°C (73°F)47 mm (1.9 inches)56%extreme
June Weather23°C (74°F)125 mm (4.9 inches)80%extreme
July Weather22°C (72°F)261 mm (10.3 inches)90%extreme
August Weather22°C (73°F)254 mm (10.0 inches)90%extreme
September Weather21°C (71°F)121 mm (4.7 inches)82%extreme
October Weather19°C (66°F)78 mm (3.1 inches)72%extreme
November Weather16°C (61°F)25 mm (1.0 inches)73%very high
December Weather13°C (55°F)29 mm (1.1 inches)66%high

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