September Weather in Nanni, China

Last updated: August 22, 2025

In September, the average temperature in Nanni, China hovers around 8°C (46°F), with a minimum drop to -4°C (25°F) and a pleasant maximum of 17°C (63°F). Expect some rain, as the region receives about 70 mm (2.7 in) of precipitation over 18 days, paired with an average humidity level of 87%. Get ready for a typically cool and damp climate!

September Temperature in Nanni

In September in Nanni, the average temperature is 8°C (46°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop to -4°C (25°F). It’s advisable to pack layers for your trip, as the weather can vary significantly throughout the day.

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

The chart illustrates September temperature patterns in Nanni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nanni, September typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (63°F) and lows dropping to around -4°C (25°F).

Data source: Temperature data for Nanni generated using information from the Copernicus Climate Change Service.

September Precipitation in Nanni

In Nanni in September, the total precipitation amount is 70 mm (2.7 in) spread over 18 days.

September Precipitation Trends in Nanni

The chart displays monthly precipitation patterns in Nanni, 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 Nanni, September typically receives around 70 mm (2.7 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Nanni

In Nanni in September, humidity is 87%. With an average temperature of 8°C (46°F), this humidity feels like a chilly, damp fog clinging to your skin, making outdoor activities a bit uncomfortable and causing even mild exertion to leave you feeling clammy and cold.

September Average Humidity in Nanni

This chart illustrates the average monthly humidity levels in Nanni, 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 Nanni is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nanni

In Nanni in September, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Nanni.

Maximum UV Index Levels in Nanni for September

The chart shows the monthly maximum UV Index (UVI) for Nanni 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 Nanni typically reaches 16, which falls under the extreme exposure category.

Data source: Nanni 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 Nanni Compares to Other Months

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

This table compares monthly weather conditions in Nanni, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	5 mm (0.2 inches)	60%	very high
February Weather	-6°C (21°F)	10 mm (0.4 inches)	65%	extreme
March Weather	-3°C (26°F)	18 mm (0.7 inches)	61%	extreme
April Weather	0°C (33°F)	37 mm (1.5 inches)	56%	extreme
May Weather	4°C (39°F)	62 mm (2.4 inches)	61%	extreme
June Weather	9°C (48°F)	73 mm (2.9 inches)	72%	extreme
July Weather	9°C (49°F)	169 mm (6.7 inches)	89%	extreme
August Weather	9°C (49°F)	138 mm (5.4 inches)	89%	extreme
September Weather	8°C (46°F)	70 mm (2.7 inches)	87%	extreme
October Weather	3°C (37°F)	21 mm (0.8 inches)	75%	extreme
November Weather	-2°C (28°F)	7 mm (0.3 inches)	59%	very high
December Weather	-6°C (21°F)	8 mm (0.3 inches)	54%	high