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September Weather in Yanjing, China

Last updated: August 22, 2025

In September, the average temperature in Yanjing, China hovers around 15°C (59°F), with minimums dipping to 3°C (38°F) and maximums reaching up to 24°C (75°F). Expect a precipitation amount of 282 mm (11.1 in) spread across 28 days, contributing to an average humidity level of 90%. 🌧️

September Temperature in Yanjing

In September in Yanjing, the average temperature is 15°C (59°F). Maximums can reach 24°C (75°F), while minimums can drop as low as 3°C (38°F). This mild climate makes it a perfect time to explore the outdoor attractions and enjoy various activities in Yanjing.

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

The chart illustrates September temperature patterns in Yanjing, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yanjing, September typically has an average temperature of 15°C (59°F), with highs reaching up to 24°C (75°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec394149535862626259544539
Data source: Temperature data for Yanjing 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 Yanjing

In Yanjing in September, the precipitation amount is 282 mm (11.1 in) over a period of 28 days.

September Precipitation Trends in Yanjing

The chart displays monthly precipitation patterns in Yanjing, 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 Yanjing, September typically receives around 282 mm (11.1 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec272941591133093513222821594325
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yanjing

In Yanjing in September, humidity is 90%. With an average temperature of 15°C (59°F), this humidity feels like traveling through a damp fog that clings to your skin, making every step feel heavier while leaving you longing for a cool breeze.

September Average Humidity in Yanjing

This chart illustrates the average monthly humidity levels in Yanjing, 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 Yanjing is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%69%46%54%71%82%89%90%90%86%85%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yanjing

In Yanjing 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 Yanjing, you can check here.

Maximum UV Index Levels in Yanjing for September

The chart shows the monthly maximum UV Index (UVI) for Yanjing 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 Yanjing typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811121516151614141296
Data source: Yanjing 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 Yanjing Compares to Other Months

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

This table compares monthly weather conditions in Yanjing, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)27 mm (1.1 inches)65%very high
February Weather5°C (41°F)29 mm (1.1 inches)69%extreme
March Weather9°C (49°F)41 mm (1.6 inches)46%extreme
April Weather12°C (54°F)59 mm (2.3 inches)54%extreme
May Weather15°C (58°F)113 mm (4.4 inches)71%extreme
June Weather16°C (62°F)309 mm (12.1 inches)82%extreme
July Weather17°C (62°F)351 mm (13.8 inches)89%extreme
August Weather17°C (62°F)322 mm (12.7 inches)90%extreme
September Weather15°C (59°F)282 mm (11.1 inches)90%extreme
October Weather12°C (54°F)159 mm (6.2 inches)86%extreme
November Weather7°C (45°F)43 mm (1.7 inches)85%very high
December Weather4°C (40°F)25 mm (1.0 inches)73%high

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