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September Weather in Sandun, China

Last updated: August 22, 2025

In September, the average temperature in Sandun, China hovers around 25°C (78°F), making it a pleasant destination. However, be prepared for fluctuations, with temperatures dipping to a minimum of 14°C (58°F) and soaring to a maximum of 36°C (97°F). Expect some rain during your stay, as 138 mm (5.4 in) of precipitation is typically spread over 13 days. With an average humidity of 75%, it's advisable to stay hydrated while enjoying all that Sandun has to offer!

September Temperature in Sandun

In September in Sandun, the average temperature is 25°C (78°F). Maximum temperatures can reach 36°C (97°F), while the minimum can drop to as low as 14°C (58°F). This makes it an ideal time for travelers to enjoy warm days and cooler nights, perfect for outdoor adventures.

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

The chart illustrates September temperature patterns in Sandun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sandun, September typically has an average temperature of 25°C (78°F), with highs reaching up to 36°C (97°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec434555637277848577675746
Data source: Temperature data for Sandun 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 Sandun

In Sandun in September, the precipitation amount is 138 mm (5.4 in) over the course of 13 days.

September Precipitation Trends in Sandun

The chart displays monthly precipitation patterns in Sandun, 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 Sandun, September typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec847512497168351248167138545770
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sandun

In Sandun in September, humidity is 75%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket enveloping you, making travel feel sticky and heavy, but also vibrant and alive, as the air is saturated with the scents of the surroundings and the energy of the environment.

September Average Humidity in Sandun

This chart illustrates the average monthly humidity levels in Sandun, 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 Sandun is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%73%82%86%85%85%90%88%75%76%84%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sandun

In Sandun 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 Sandun.

Maximum UV Index Levels in Sandun for September

The chart shows the monthly maximum UV Index (UVI) for Sandun 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 Sandun typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579101111111110864
Data source: Sandun 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 Sandun Compares to Other Months

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

This table compares monthly weather conditions in Sandun, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)84 mm (3.3 inches)70%moderate
February Weather7°C (45°F)75 mm (3.0 inches)73%high
March Weather13°C (55°F)124 mm (4.9 inches)82%very high
April Weather17°C (64°F)97 mm (3.8 inches)86%very high
May Weather22°C (73°F)167 mm (6.6 inches)85%extreme
June Weather25°C (77°F)351 mm (13.8 inches)85%extreme
July Weather29°C (84°F)248 mm (9.8 inches)90%extreme
August Weather30°C (86°F)167 mm (6.6 inches)88%extreme
September Weather25°C (78°F)138 mm (5.4 inches)75%very high
October Weather19°C (67°F)54 mm (2.1 inches)76%very high
November Weather14°C (57°F)57 mm (2.2 inches)84%high
December Weather8°C (46°F)69 mm (2.7 inches)77%moderate

Compare Sandun's Climate with Cities Worldwide