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September Weather in Nianmu, China

Last updated: August 22, 2025

In Nianmu, China, the average temperature in September hovers around 11°C (52°F). During this time, you can expect a minimum temperature dipping to a chilly -1°C (31°F) and a pleasant maximum of 21°C (70°F). Be prepared for some wet days, as precipitation averages around 71 mm (2.8 in) over 18 days. Additionally, the atmosphere remains quite humid, with an average humidity level of 87%.

September Temperature in Nianmu

In September, in Nianmu, the average temperature is 11°C (52°F). The maximum can reach 21°C (70°F) and the minimum can be as low as -1°C (31°F). Pack layers and enjoy a mix of cool and mild weather during your visit!

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

The chart illustrates September temperature patterns in Nianmu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nianmu, September typically has an average temperature of 11°C (52°F), with highs reaching up to 21°C (70°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec212532404654555452433426
Data source: Temperature data for Nianmu 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 Nianmu

In Nianmu in September, the precipitation amount is 71 mm (2.8 in) over the course of 18 days.

September Precipitation Trends in Nianmu

The chart displays monthly precipitation patterns in Nianmu, 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 Nianmu, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec4712276182173159711957
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nianmu

In Nianmu in September, humidity is 87%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make your clothes cling uncomfortably, leaving you feeling slightly weighed down while exploring the area.

September Average Humidity in Nianmu

This chart illustrates the average monthly humidity levels in Nianmu, 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 Nianmu is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec60%65%61%56%61%72%89%89%87%75%59%54%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nianmu

In Nianmu in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Nianmu.

Maximum UV Index Levels in Nianmu for September

The chart shows the monthly maximum UV Index (UVI) for Nianmu 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 Nianmu typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec8111315171616161512107
Data source: Nianmu 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 Nianmu Compares to Other Months

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

This table compares monthly weather conditions in Nianmu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)4 mm (0.1 inches)60%very high
February Weather-4°C (26°F)7 mm (0.3 inches)65%extreme
March Weather0°C (33°F)12 mm (0.5 inches)61%extreme
April Weather4°C (40°F)27 mm (1.1 inches)56%extreme
May Weather8°C (46°F)61 mm (2.4 inches)61%extreme
June Weather12°C (55°F)82 mm (3.2 inches)72%extreme
July Weather13°C (55°F)173 mm (6.8 inches)89%extreme
August Weather12°C (55°F)159 mm (6.3 inches)89%extreme
September Weather11°C (52°F)71 mm (2.8 inches)87%extreme
October Weather6°C (44°F)19 mm (0.7 inches)75%extreme
November Weather1°C (34°F)5 mm (0.2 inches)59%very high
December Weather-3°C (26°F)7 mm (0.3 inches)54%high

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