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September Weather in Tonglou, China

Last updated: August 22, 2025

In September, the average temperature in Tonglou, China reaches a pleasant 21°C (71°F). However, you may experience a range with minimums dropping to 13°C (55°F) and maximums soaring to 33°C (92°F). Expect some wet days, as precipitation averages 170 mm (6.7 in) spread over 18 days, and humidity hovers around 71%, creating a warm and somewhat humid atmosphere.

September Temperature in Tonglou

In September in Tonglou, the average temperature is 21°C (71°F). The maximum can reach 33°C (92°F), while the minimum can drop as low as 13°C (55°F). This makes it a great time to explore Tonglou with its warm days and cooler evenings, perfect for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Tonglou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tonglou, September typically has an average temperature of 21°C (71°F), with highs reaching up to 33°C (92°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec404352606773787871605243
Data source: Temperature data for Tonglou 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 Tonglou

In Tonglou in September, the precipitation amount is 170 mm (6.7 in) over the course of 18 days.

September Precipitation Trends in Tonglou

The chart displays monthly precipitation patterns in Tonglou, 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 Tonglou, September typically receives around 170 mm (6.7 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec55641201121961871931421701258146
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tonglou

In Tonglou 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 Tonglou

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

In Tonglou 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 Tonglou.

Maximum UV Index Levels in Tonglou for September

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

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

This table compares monthly weather conditions in Tonglou, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)55 mm (2.1 inches)67%high
February Weather6°C (43°F)64 mm (2.5 inches)73%high
March Weather11°C (53°F)120 mm (4.7 inches)84%very high
April Weather16°C (60°F)112 mm (4.4 inches)82%extreme
May Weather19°C (67°F)196 mm (7.7 inches)86%extreme
June Weather23°C (73°F)187 mm (7.4 inches)86%extreme
July Weather25°C (78°F)192 mm (7.6 inches)88%extreme
August Weather26°C (79°F)142 mm (5.6 inches)85%extreme
September Weather21°C (71°F)170 mm (6.7 inches)71%extreme
October Weather16°C (61°F)125 mm (4.9 inches)74%very high
November Weather11°C (52°F)81 mm (3.2 inches)85%high
December Weather6°C (43°F)46 mm (1.8 inches)75%moderate

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