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September Weather in Kaiyuan, China

Last updated: August 22, 2025

In Kaiyuan, China, the average temperature in September hovers around 18°C (65°F), creating a pleasant climate. Expect a minimum of 2°C (37°F) and a maximum of 30°C (86°F). During this month, precipitation amounts to 106 mm (4.2 in) over approximately 9 days, contributing to an average humidity of 80%. Embrace the refreshing atmosphere!

September Temperature in Kaiyuan

In September in Kaiyuan, the average temperature is 18°C (65°F), with maximums reaching 30°C (86°F) and minimums dipping as low as 2°C (37°F). This mild climate makes it a great time for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Kaiyuan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaiyuan, September typically has an average temperature of 18°C (65°F), with highs reaching up to 30°C (86°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec121937526472797565493216
Data source: Temperature data for Kaiyuan 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 Kaiyuan

In Kaiyuan in September, the total precipitation amount is 106 mm (4.2 in), spread over the course of 9 days.

September Precipitation Trends in Kaiyuan

The chart displays monthly precipitation patterns in Kaiyuan, 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 Kaiyuan, September typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec692124539610824210640346
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kaiyuan

In Kaiyuan in September, humidity is 80%. With an average temperature of 18°C (65°F), this humidity feels like wandering through a warm, damp blanket, making every step slightly heavy and resulting in a constant sheen of sweat, which can be both refreshing and exhausting for travelers.

September Average Humidity in Kaiyuan

This chart illustrates the average monthly humidity levels in Kaiyuan, 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 Kaiyuan is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec58%52%51%57%64%75%84%86%80%79%64%49%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kaiyuan

In Kaiyuan in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Kaiyuan.

Maximum UV Index Levels in Kaiyuan for September

The chart shows the monthly maximum UV Index (UVI) for Kaiyuan 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 Kaiyuan typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23678101097532
Data source: Kaiyuan 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 Kaiyuan Compares to Other Months

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

This table compares monthly weather conditions in Kaiyuan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)6 mm (0.2 inches)58%low
February Weather-7°C (20°F)9 mm (0.3 inches)52%moderate
March Weather3°C (37°F)21 mm (0.8 inches)51%high
April Weather11°C (52°F)24 mm (1.0 inches)56%high
May Weather18°C (64°F)53 mm (2.1 inches)64%very high
June Weather22°C (73°F)96 mm (3.8 inches)75%very high
July Weather26°C (79°F)108 mm (4.3 inches)83%very high
August Weather24°C (75°F)242 mm (9.5 inches)86%very high
September Weather18°C (65°F)106 mm (4.2 inches)80%high
October Weather10°C (49°F)39 mm (1.6 inches)79%moderate
November Weather0°C (33°F)34 mm (1.3 inches)64%moderate
December Weather-9°C (17°F)6 mm (0.3 inches)49%low

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