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September Weather in Sanmenxia, China

Last updated: August 22, 2025

In Sanmenxia, China, the average temperature in September is a comfortable 20°C (68°F), with nighttime lows dipping to 10°C (50°F) and daytime highs reaching up to 33°C (93°F). Visitors can expect 157 mm (6.2 in) of rainfall spread over 8 days, contributing to an average humidity of 65%.

September Temperature in Sanmenxia

In September in Sanmenxia, the average temperature is 20°C (68°F). Maximum temperatures can reach 33°C (93°F), while minimum temperatures can drop to as low as 10°C (50°F). This range makes Sanmenxia an ideal destination for travelers seeking pleasant weather and a variety of outdoor activities.

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

The chart illustrates September temperature patterns in Sanmenxia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sanmenxia, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (93°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec303749586775787768554533
Data source: Temperature data for Sanmenxia 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 Sanmenxia

In Sanmenxia in September, the precipitation amount is 157 mm (6.2 in) distributed over 8 days.

September Precipitation Trends in Sanmenxia

The chart displays monthly precipitation patterns in Sanmenxia, 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 Sanmenxia, September typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec15202652449310710615770196
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sanmenxia

In Sanmenxia in September humidity is 65%. With an average temperature of 20°C (68°F), this humidity feels quite muggy for traveling, making even short walks feel a bit sticky and requiring frequent hydration.

September Average Humidity in Sanmenxia

This chart illustrates the average monthly humidity levels in Sanmenxia, 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 Sanmenxia is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec61%69%77%78%67%69%78%71%65%76%78%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sanmenxia

In Sanmenxia in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sanmenxia.

Maximum UV Index Levels in Sanmenxia for September

The chart shows the monthly maximum UV Index (UVI) for Sanmenxia 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 Sanmenxia typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4579111111109843
Data source: Sanmenxia 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 Sanmenxia Compares to Other Months

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

This table compares monthly weather conditions in Sanmenxia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)15 mm (0.6 inches)61%moderate
February Weather3°C (37°F)20 mm (0.8 inches)69%moderate
March Weather10°C (49°F)26 mm (1.0 inches)77%high
April Weather14°C (58°F)52 mm (2.0 inches)78%very high
May Weather20°C (68°F)44 mm (1.7 inches)67%extreme
June Weather24°C (75°F)92 mm (3.6 inches)69%extreme
July Weather25°C (78°F)107 mm (4.2 inches)78%extreme
August Weather25°C (77°F)106 mm (4.2 inches)71%very high
September Weather20°C (68°F)157 mm (6.2 inches)65%very high
October Weather13°C (55°F)70 mm (2.7 inches)76%very high
November Weather7°C (46°F)19 mm (0.7 inches)78%moderate
December Weather1°C (33°F)6 mm (0.2 inches)75%moderate

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