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September Weather in Jiannan, China

Last updated: August 22, 2025

In September, the average temperature in Jiannan, China is a comfortable 22°C (71°F), with minimums dipping to 14°C (58°F) and highs reaching up to 33°C (92°F). Expect about 168 mm (6.6 in) of precipitation spread over 19 days, contributing to an average humidity level of 92%. Perfect weather for those who enjoy a lush and vibrant atmosphere!

September Temperature in Jiannan

In September in Jiannan, the average temperature is 22°C (71°F), with maximums reaching 33°C (92°F) and minimums dropping to as low as 14°C (58°F). This mild and pleasant weather makes it an ideal time for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Jiannan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jiannan, September typically has an average temperature of 22°C (71°F), with highs reaching up to 33°C (92°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec434656647176797971615344
Data source: Temperature data for Jiannan 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 Jiannan

In Jiannan in September, the total precipitation amounts to 168 mm (6.6 in) over a span of 19 days.

September Precipitation Trends in Jiannan

The chart displays monthly precipitation patterns in Jiannan, 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 Jiannan, September typically receives around 168 mm (6.6 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec33334970781023023001681104947
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jiannan

In Jiannan in September, humidity is 92%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket enveloping you as you travel, making every step feel heavier and the air thick with moisture, which can leave you feeling sticky and fatigued rather than refreshed.

September Average Humidity in Jiannan

This chart illustrates the average monthly humidity levels in Jiannan, 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 Jiannan is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%90%86%87%88%89%92%92%92%92%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jiannan

In Jiannan 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 Jiannan.

Maximum UV Index Levels in Jiannan for September

The chart shows the monthly maximum UV Index (UVI) for Jiannan 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 Jiannan typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101212101110864
Data source: Jiannan 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 Jiannan Compares to Other Months

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

This table compares monthly weather conditions in Jiannan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)33 mm (1.3 inches)90%moderate
February Weather8°C (47°F)33 mm (1.3 inches)92%high
March Weather14°C (57°F)49 mm (1.9 inches)89%very high
April Weather18°C (64°F)70 mm (2.8 inches)85%very high
May Weather21°C (71°F)78 mm (3.1 inches)87%extreme
June Weather24°C (76°F)101 mm (4.0 inches)88%extreme
July Weather26°C (79°F)302 mm (11.9 inches)89%very high
August Weather26°C (79°F)300 mm (11.8 inches)92%extreme
September Weather22°C (71°F)168 mm (6.6 inches)92%very high
October Weather16°C (62°F)110 mm (4.3 inches)92%very high
November Weather12°C (53°F)49 mm (1.9 inches)92%high
December Weather7°C (45°F)47 mm (1.9 inches)90%moderate

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