nomadseason

September Weather in Chenghai, China

Last updated: August 23, 2025

In September, the average temperature in Chenghai, China hovers around 19°C (66°F), providing a mild climate. Expect temperatures to range from a cool 10°C (51°F) to a warm 27°C (81°F). However, be prepared for wet days, as precipitation averages 170 mm (6.7 in) over 23 days of the month, accompanied by a notable 90% humidity.

September Temperature in Chenghai

In September in Chenghai, the average temperature is 19°C (66°F). The maximum can reach 27°C (81°F) and the minimum can be as low as 10°C (51°F). This mild climate makes Chenghai an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates September temperature patterns in Chenghai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chenghai, September typically has an average temperature of 19°C (66°F), with highs reaching up to 27°C (81°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec495259636872696966625550
Data source: Temperature data for Chenghai 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 Chenghai

In Chenghai in September, the precipitation amount is 170 mm (6.7 in) over the course of 23 days.

September Precipitation Trends in Chenghai

The chart displays monthly precipitation patterns in Chenghai, 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 Chenghai, September typically receives around 170 mm (6.7 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec10910244812826727317080114
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Chenghai

In Chenghai in September humidity is 90%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket enveloping you, making travel a sticky experience as the air hangs heavy and every step seems to amplify the sultry atmosphere.

September Average Humidity in Chenghai

This chart illustrates the average monthly humidity levels in Chenghai, 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 Chenghai 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 Chenghai

In Chenghai 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 Chenghai, you can check here.

Maximum UV Index Levels in Chenghai for September

The chart shows the monthly maximum UV Index (UVI) for Chenghai 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 Chenghai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79121314141514141297
Data source: Chenghai 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 Chenghai Compares to Other Months

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

This table compares monthly weather conditions in Chenghai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (49°F)10 mm (0.4 inches)65%high
February Weather11°C (52°F)9 mm (0.3 inches)69%very high
March Weather15°C (59°F)10 mm (0.4 inches)46%extreme
April Weather17°C (63°F)24 mm (1.0 inches)54%extreme
May Weather20°C (69°F)48 mm (1.9 inches)71%extreme
June Weather22°C (72°F)128 mm (5.0 inches)82%extreme
July Weather20°C (69°F)267 mm (10.5 inches)89%extreme
August Weather20°C (69°F)273 mm (10.8 inches)90%extreme
September Weather19°C (66°F)170 mm (6.7 inches)90%extreme
October Weather17°C (62°F)79 mm (3.1 inches)86%extreme
November Weather13°C (55°F)11 mm (0.4 inches)85%very high
December Weather10°C (50°F)4 mm (0.2 inches)73%high

Compare Chenghai's Climate with Cities Worldwide