nomadseason

September Weather in Chengnan, China

Last updated: August 22, 2025

In Chengnan, China, the average temperature for September hovers around 25°C (77°F), with minimums dipping to 16°C (62°F) and maximums soaring up to 36°C (98°F). Visitors should prepare for some moisture, as the area receives about 97 mm (3.8 in) of precipitation spread over 10 days. With an average humidity level of 70%, expect a warm and slightly tropical atmosphere during your stay!

September Temperature in Chengnan

In September in Chengnan, the average temperature is 25°C (77°F), with maximums reaching up to 36°C (98°F) and minimums dipping as low as 16°C (62°F). This makes Chengnan an ideal destination for travelers seeking warm, pleasant weather.

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

The chart illustrates September temperature patterns in Chengnan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chengnan, September typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (98°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec414555647279838477655645
Data source: Temperature data for Chengnan 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 Chengnan

In Chengnan in September, the total precipitation amount is 97 mm (3.8 in) over a span of 10 days.

September Precipitation Trends in Chengnan

The chart displays monthly precipitation patterns in Chengnan, 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 Chengnan, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec47469612217421419414097644525
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Chengnan

In Chengnan in September, humidity is 70%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, moist blanket that clings to your skin, making every step feel heavier as you explore the sights and sounds of your destination.

September Average Humidity in Chengnan

This chart illustrates the average monthly humidity levels in Chengnan, 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 Chengnan is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%78%87%85%82%84%88%84%70%77%84%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chengnan

In Chengnan 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 Chengnan.

Maximum UV Index Levels in Chengnan for September

The chart shows the monthly maximum UV Index (UVI) for Chengnan 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 Chengnan typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec568101011121110964
Data source: Chengnan 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 Chengnan Compares to Other Months

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

This table compares monthly weather conditions in Chengnan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)47 mm (1.8 inches)74%moderate
February Weather7°C (46°F)46 mm (1.8 inches)77%high
March Weather13°C (56°F)96 mm (3.8 inches)87%very high
April Weather18°C (64°F)121 mm (4.8 inches)85%very high
May Weather22°C (73°F)174 mm (6.8 inches)82%very high
June Weather26°C (79°F)214 mm (8.4 inches)84%extreme
July Weather29°C (84°F)193 mm (7.6 inches)88%extreme
August Weather29°C (85°F)140 mm (5.5 inches)84%extreme
September Weather25°C (77°F)97 mm (3.8 inches)70%very high
October Weather18°C (65°F)64 mm (2.5 inches)77%very high
November Weather14°C (57°F)45 mm (1.8 inches)84%high
December Weather7°C (45°F)25 mm (1.0 inches)80%moderate

Compare Chengnan's Climate with Cities Worldwide