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September Weather in Sanyu, China

Last updated: August 22, 2025

In September, the average temperature in Sanyu, China hovers around 15°C (60°F), with minimums dipping to 7°C (45°F) and maximums peaking at 25°C (77°F). Expect 121 mm (4.8 in) of precipitation spread over 17 days, leading to a notably high average humidity of 91%.

September Temperature in Sanyu

In September in Sanyu, the average temperature is 15°C (60°F), with maximums reaching 25°C (77°F) and minimums dropping as low as 7°C (45°F). This pleasant climate makes it an ideal time for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Sanyu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sanyu, September typically has an average temperature of 15°C (60°F), with highs reaching up to 25°C (77°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec242842505864696759493827
Data source: Temperature data for Sanyu 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 Sanyu

In Sanyu in September, the total precipitation amount is 121 mm (4.8 in) recorded over the course of 17 days.

September Precipitation Trends in Sanyu

The chart displays monthly precipitation patterns in Sanyu, 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 Sanyu, September typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec21264671931191441471211033319
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sanyu

In Sanyu in September, humidity is 91%. With an average temperature of 15°C (60°F), this humidity feels like traveling through a warm, damp blanket, making every step heavier and the air thick, which can be quite uncomfortable for most travelers.

September Average Humidity in Sanyu

This chart illustrates the average monthly humidity levels in Sanyu, 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 Sanyu is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%86%85%84%87%88%91%91%91%90%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sanyu

In Sanyu in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Sanyu.

Maximum UV Index Levels in Sanyu for September

The chart shows the monthly maximum UV Index (UVI) for Sanyu 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 Sanyu typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589131313131212964
Data source: Sanyu 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 Sanyu Compares to Other Months

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

This table compares monthly weather conditions in Sanyu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)21 mm (0.8 inches)87%moderate
February Weather-2°C (29°F)26 mm (1.0 inches)90%very high
March Weather6°C (43°F)46 mm (1.8 inches)86%very high
April Weather10°C (51°F)71 mm (2.8 inches)84%extreme
May Weather14°C (58°F)93 mm (3.6 inches)84%extreme
June Weather18°C (64°F)119 mm (4.7 inches)87%extreme
July Weather20°C (69°F)143 mm (5.6 inches)88%extreme
August Weather20°C (68°F)147 mm (5.8 inches)91%extreme
September Weather15°C (60°F)121 mm (4.8 inches)91%extreme
October Weather9°C (49°F)103 mm (4.0 inches)91%very high
November Weather4°C (39°F)33 mm (1.3 inches)90%high
December Weather-3°C (27°F)19 mm (0.8 inches)87%moderate

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