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September Weather in Caotan, China

Last updated: August 22, 2025

The average temperature in Caotan, China during September is a comfortable 22°C (72°F). Temperatures can vary, with a minimum of 11°C (51°F) and a maximum reaching 37°C (99°F). Expect precipitation of around 130 mm (5.1 in) over 10 days, accompanied by an average humidity level of 78%.

September Temperature in Caotan

In September in Caotan, the average temperature is 22°C (72°F). Maximums can reach 37°C (99°F), while minimums can drop to as low as 11°C (51°F). It's a great time to visit Caotan for those who enjoy warm weather but also appreciate cooler evenings for a comfortable travel experience.

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

The chart illustrates September temperature patterns in Caotan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caotan, September typically has an average temperature of 22°C (72°F), with highs reaching up to 37°C (99°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec354155647380848272594937
Data source: Temperature data for Caotan 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 Caotan

In Caotan in September, the precipitation amount is 130 mm (5.1 in) over a period of 10 days.

September Precipitation Trends in Caotan

The chart displays monthly precipitation patterns in Caotan, 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 Caotan, September typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec91221334184828513072164
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Caotan

In Caotan in September, humidity is 78%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration a bit stifling but ultimately rewarding as you bask in the vibrant atmosphere.

September Average Humidity in Caotan

This chart illustrates the average monthly humidity levels in Caotan, 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 Caotan is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%80%83%81%68%74%76%72%78%85%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Caotan

In Caotan in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Caotan.

Maximum UV Index Levels in Caotan for September

The chart shows the monthly maximum UV Index (UVI) for Caotan 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 Caotan typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010109753
Data source: Caotan 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 Caotan Compares to Other Months

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

This table compares monthly weather conditions in Caotan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)9 mm (0.3 inches)70%moderate
February Weather5°C (42°F)12 mm (0.5 inches)80%moderate
March Weather13°C (55°F)21 mm (0.8 inches)83%high
April Weather18°C (64°F)33 mm (1.3 inches)81%very high
May Weather23°C (73°F)41 mm (1.6 inches)68%very high
June Weather27°C (80°F)84 mm (3.3 inches)74%very high
July Weather29°C (84°F)82 mm (3.2 inches)76%very high
August Weather28°C (82°F)85 mm (3.3 inches)72%very high
September Weather22°C (72°F)130 mm (5.1 inches)78%very high
October Weather15°C (59°F)72 mm (2.8 inches)85%high
November Weather9°C (49°F)16 mm (0.6 inches)82%moderate
December Weather3°C (37°F)4 mm (0.2 inches)80%moderate

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