nomadseason

September Weather in Hongdu, China

Last updated: August 23, 2025

In September, the average temperature in Hongdu, China is a pleasant 21°C (71°F). During this time, you can expect temperatures to range from a cool 13°C (56°F) to a warm 33°C (91°F). However, be prepared for occasional rain, as the region experiences an average precipitation of 206 mm (8.1 in) over 18 days. With an average humidity of 71%, it's the perfect time to enjoy the local scenery—just don't forget your umbrella!

September Temperature in Hongdu

In September in Hongdu, the average temperature is 21°C (71°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 13°C (56°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while comfortably exploring the area.

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

The chart illustrates September temperature patterns in Hongdu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hongdu, September typically has an average temperature of 21°C (71°F), with highs reaching up to 33°C (91°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec394352606673787870605142
Data source: Temperature data for Hongdu 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 Hongdu

In Hongdu in September, the precipitation amount is 206 mm (8.1 in) spread over 18 days.

September Precipitation Trends in Hongdu

The chart displays monthly precipitation patterns in Hongdu, 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 Hongdu, September typically receives around 206 mm (8.1 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec63711381322422352231552071389153
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Hongdu

In Hongdu in September humidity is 71%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making it important for travelers to stay hydrated and seek shade during the hottest parts of the day.

September Average Humidity in Hongdu

This chart illustrates the average monthly humidity levels in Hongdu, 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 Hongdu is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%73%84%82%86%86%88%85%71%74%85%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hongdu

In Hongdu in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Hongdu.

Maximum UV Index Levels in Hongdu for September

The chart shows the monthly maximum UV Index (UVI) for Hongdu 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 Hongdu typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6710111212131211975
Data source: Hongdu 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 Hongdu Compares to Other Months

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

This table compares monthly weather conditions in Hongdu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)63 mm (2.5 inches)67%high
February Weather6°C (43°F)71 mm (2.8 inches)73%high
March Weather11°C (52°F)138 mm (5.4 inches)84%very high
April Weather15°C (60°F)132 mm (5.2 inches)82%extreme
May Weather19°C (67°F)242 mm (9.5 inches)86%extreme
June Weather23°C (73°F)235 mm (9.3 inches)86%extreme
July Weather25°C (78°F)223 mm (8.8 inches)88%extreme
August Weather26°C (78°F)155 mm (6.1 inches)85%extreme
September Weather21°C (71°F)206 mm (8.1 inches)71%extreme
October Weather16°C (60°F)138 mm (5.4 inches)74%very high
November Weather11°C (52°F)91 mm (3.6 inches)85%high
December Weather6°C (43°F)53 mm (2.1 inches)75%moderate

Compare Hongdu's Climate with Cities Worldwide