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September Weather in Chenggu, China

Last updated: August 22, 2025

In September, the average temperature in Chenggu, China hovers around 20°C (67°F), with a comfortable range that sees a minimum of 12°C (53°F) and a pleasant maximum of 30°C (86°F). However, be prepared for some rain, as precipitation totals 241 mm (9.5 in) spread over 17 days. With an average humidity of 89%, it's the perfect time to enjoy the vibrant atmosphere of this locale, though a light jacket may come in handy!

September Temperature in Chenggu

In September in Chenggu, the average temperature is 20°C (67°F). Maximums can reach 30°C (86°F), and minimums can be as low as 12°C (53°F). This makes it an ideal time for travelers to enjoy mild weather and comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Chenggu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chenggu, September typically has an average temperature of 20°C (67°F), with highs reaching up to 30°C (86°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec374151586672767667574839
Data source: Temperature data for Chenggu 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 Chenggu

In Chenggu in September, the precipitation amount is 241 mm (9.5 in) spread over 17 days, resulting in a steady supply of moisture throughout the month.

September Precipitation Trends in Chenggu

The chart displays monthly precipitation patterns in Chenggu, 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 Chenggu, September typically receives around 241 mm (9.5 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec273466911011582321862411864827
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chenggu

In Chenggu in September humidity is 89%. With an average temperature of 20°C (67°F), this humidity feels like a heavy blanket enveloping you, making traveling feel sluggish and exhausting as each step requires more effort in the thick, tropical air.

September Average Humidity in Chenggu

This chart illustrates the average monthly humidity levels in Chenggu, 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 Chenggu is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%90%85%81%86%87%88%89%90%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chenggu

In Chenggu 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 Chenggu.

Maximum UV Index Levels in Chenggu for September

The chart shows the monthly maximum UV Index (UVI) for Chenggu 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 Chenggu typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45891111111110853
Data source: Chenggu 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 Chenggu Compares to Other Months

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

This table compares monthly weather conditions in Chenggu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)27 mm (1.0 inches)85%moderate
February Weather5°C (41°F)34 mm (1.3 inches)87%moderate
March Weather10°C (51°F)66 mm (2.6 inches)90%very high
April Weather15°C (59°F)91 mm (3.6 inches)85%very high
May Weather19°C (66°F)101 mm (4.0 inches)81%extreme
June Weather22°C (72°F)158 mm (6.2 inches)86%extreme
July Weather24°C (76°F)231 mm (9.1 inches)87%extreme
August Weather24°C (76°F)186 mm (7.3 inches)88%extreme
September Weather20°C (67°F)241 mm (9.5 inches)89%very high
October Weather14°C (57°F)186 mm (7.3 inches)90%very high
November Weather9°C (48°F)48 mm (1.9 inches)88%moderate
December Weather4°C (39°F)27 mm (1.1 inches)88%moderate

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