nomadseason

September Weather in Sanchuan, China

Last updated: August 22, 2025

In September, the average temperature in Sanchuan, China is a pleasant 17°C (63°F), with a minimum dipping to 8°C (48°F) and a maximum reaching 25°C (77°F). Expect some rain, as 193 mm (7.6 in) of precipitation falls over approximately 26 days. With an average humidity of 90%, be prepared for a wonderfully moist atmosphere.

September Temperature in Sanchuan

In September in Sanchuan, the average temperature is 17°C (63°F), with maximums reaching up to 25°C (77°F) and minimums dipping as low as 8°C (48°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy the outdoor activities that Sanchuan has to offer.

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

The chart illustrates September temperature patterns in Sanchuan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sanchuan, September typically has an average temperature of 17°C (63°F), with highs reaching up to 25°C (77°F) and lows dropping to around 8°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec464855596568666663595246
Data source: Temperature data for Sanchuan generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Sanchuan

In Sanchuan in September, the precipitation amount is 193 mm (7.6 in) spread over 26 days.

September Precipitation Trends in Sanchuan

The chart displays monthly precipitation patterns in Sanchuan, 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 Sanchuan, September typically receives around 193 mm (7.6 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec131213285716629530619398146
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Sanchuan

In Sanchuan in September humidity is 90%. With an average temperature of 17°C (63°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sticky and exhausting as the air hangs thick and damp, making even short walks feel like a marathon.

September Average Humidity in Sanchuan

This chart illustrates the average monthly humidity levels in Sanchuan, 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 Sanchuan is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%69%46%54%71%82%89%90%90%86%85%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sanchuan

In Sanchuan in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Sanchuan, you can check here.

Maximum UV Index Levels in Sanchuan for September

The chart shows the monthly maximum UV Index (UVI) for Sanchuan 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 Sanchuan typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710121414141615141297
Data source: Sanchuan 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 Sanchuan Compares to Other Months

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

This table compares monthly weather conditions in Sanchuan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)13 mm (0.5 inches)65%high
February Weather9°C (48°F)12 mm (0.5 inches)69%very high
March Weather13°C (55°F)13 mm (0.5 inches)46%extreme
April Weather15°C (60°F)28 mm (1.1 inches)54%extreme
May Weather18°C (65°F)57 mm (2.2 inches)71%extreme
June Weather20°C (69°F)166 mm (6.5 inches)82%extreme
July Weather19°C (66°F)295 mm (11.6 inches)89%extreme
August Weather19°C (66°F)306 mm (12.1 inches)90%extreme
September Weather17°C (63°F)193 mm (7.6 inches)90%extreme
October Weather15°C (59°F)98 mm (3.8 inches)86%extreme
November Weather11°C (52°F)14 mm (0.5 inches)85%very high
December Weather8°C (47°F)6 mm (0.2 inches)73%high

Compare Sanchuan's Climate with Cities Worldwide