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September Weather in Yongchang, China

Last updated: August 23, 2025

In September, the average temperature in Yongchang, China hovers around 20°C (68°F). During this time, temperatures can dip to a cool 12°C (54°F) or soar up to a warm 30°C (87°F). Expect a precipitation amount of 235 mm (9.3 in) over approximately 20 days, with humidity levels reaching a high 92%. Prepare for a blend of warmth and moisture in this vibrant locale!

September Temperature in Yongchang

In September in Yongchang, the average temperature is 20°C (68°F). Maximums can reach 30°C (87°F), while minimums can be as low as 12°C (54°F). This pleasant temperature range makes Yongchang an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Yongchang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yongchang, September typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (87°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec404454616772767668595041
Data source: Temperature data for Yongchang 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 Yongchang

In Yongchang in September, the total precipitation amount reaches 235 mm (9.3 in) over the course of 20 days.

September Precipitation Trends in Yongchang

The chart displays monthly precipitation patterns in Yongchang, 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 Yongchang, September typically receives around 235 mm (9.3 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec504666831041303653372351306154
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yongchang

In Yongchang in September humidity is 92%. With an average temperature of 20°C (68°F), this humidity feels like a thick blanket enveloping you, making every step feel heavy and each breath slightly labored, which can be quite challenging for traveling.

September Average Humidity in Yongchang

This chart illustrates the average monthly humidity levels in Yongchang, 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 Yongchang is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%90%86%87%88%89%92%92%92%92%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yongchang

In Yongchang in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Yongchang.

Maximum UV Index Levels in Yongchang for September

The chart shows the monthly maximum UV Index (UVI) for Yongchang 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 Yongchang typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec568101212111110864
Data source: Yongchang 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 Yongchang Compares to Other Months

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

This table compares monthly weather conditions in Yongchang, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)50 mm (2.0 inches)90%moderate
February Weather6°C (44°F)45 mm (1.8 inches)92%high
March Weather12°C (54°F)66 mm (2.6 inches)89%very high
April Weather16°C (61°F)83 mm (3.3 inches)85%very high
May Weather20°C (67°F)104 mm (4.1 inches)87%extreme
June Weather22°C (73°F)130 mm (5.1 inches)88%extreme
July Weather24°C (76°F)365 mm (14.4 inches)89%extreme
August Weather24°C (76°F)337 mm (13.3 inches)92%extreme
September Weather20°C (68°F)235 mm (9.3 inches)92%very high
October Weather15°C (59°F)129 mm (5.1 inches)92%very high
November Weather10°C (51°F)61 mm (2.4 inches)92%high
December Weather5°C (42°F)54 mm (2.1 inches)90%moderate

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