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September Weather in Niandui, China

Last updated: August 22, 2025

In September, the average temperature in Niandui, China hovers around 8°C (47°F). Prepare for a chilly range, with minima dipping as low as -4°C (25°F) and maxima reaching up to 18°C (65°F). Expect 90 mm (3.5 in) of precipitation over approximately 22 days, contributing to the average humidity level of 87%.

September Temperature in Niandui

In September in Niandui, the average temperature is 8°C (47°F), with maximums reaching up to 18°C (65°F) and minimums dropping as low as -4°C (25°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while dressing in layers to stay comfortable.

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

The chart illustrates September temperature patterns in Niandui, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Niandui, September typically has an average temperature of 8°C (47°F), with highs reaching up to 18°C (65°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec182127344149505047382922
Data source: Temperature data for Niandui 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 Niandui

In Niandui in September, the precipitation amount is 90 mm (3.5 in) spread over 22 days.

September Precipitation Trends in Niandui

The chart displays monthly precipitation patterns in Niandui, 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 Niandui, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec41018387498201175902988
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Niandui

In Niandui in September, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

September Average Humidity in Niandui

This chart illustrates the average monthly humidity levels in Niandui, 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 Niandui 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 Niandui

In Niandui 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 Niandui.

Maximum UV Index Levels in Niandui for September

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

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

This table compares monthly weather conditions in Niandui, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)4 mm (0.2 inches)60%very high
February Weather-6°C (22°F)10 mm (0.4 inches)65%extreme
March Weather-3°C (27°F)18 mm (0.7 inches)61%extreme
April Weather1°C (35°F)38 mm (1.5 inches)56%extreme
May Weather5°C (41°F)73 mm (2.9 inches)61%extreme
June Weather10°C (49°F)98 mm (3.8 inches)72%extreme
July Weather10°C (50°F)201 mm (7.9 inches)89%extreme
August Weather10°C (50°F)175 mm (6.9 inches)89%extreme
September Weather8°C (47°F)90 mm (3.5 inches)87%extreme
October Weather3°C (38°F)29 mm (1.1 inches)75%extreme
November Weather-2°C (29°F)8 mm (0.3 inches)59%very high
December Weather-6°C (22°F)8 mm (0.3 inches)54%high

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