September Weather in Sanwei, China

Last updated: August 22, 2025

In Sanwei, China, the average temperature in September hovers around 21°C (70°F), with a comfortable range where the minimum can dip to 4°C (40°F) and the maximum can reach up to 37°C (98°F). Rainfall is scarce, with only 1 mm (0.0 in) of precipitation occurring over 0 days, and an average humidity of 32% means you can expect a dry and pleasant atmosphere.

September Temperature in Sanwei

In September in Sanwei, the average temperature is 21°C (70°F). Maximum temperatures can reach 37°C (98°F), while minimums can dip as low as 4°C (40°F). This climate makes Sanwei an ideal destination for those seeking warm days and cool evenings, perfect for both outdoor adventures and leisurely explorations.

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

The chart illustrates September temperature patterns in Sanwei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sanwei, September typically has an average temperature of 21°C (70°F), with highs reaching up to 37°C (98°F) and lows dropping to around 4°C (40°F).

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

September Precipitation in Sanwei

In Sanwei in September, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.

September Precipitation Trends in Sanwei

The chart displays monthly precipitation patterns in Sanwei, 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 Sanwei, September typically receives around 1 mm (0.0 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Sanwei

In Sanwei in September, humidity is 32%. With an average temperature of 21°C (70°F), this humidity feels like a comfortable and refreshing embrace, making it ideal for traveling as you can explore the sights without feeling overheated or sticky.

September Average Humidity in Sanwei

This chart illustrates the average monthly humidity levels in Sanwei, 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 Sanwei is approximately 32%, 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 Sanwei

In Sanwei in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sanwei.

Maximum UV Index Levels in Sanwei for September

The chart shows the monthly maximum UV Index (UVI) for Sanwei 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 Sanwei typically reaches 8, which falls under the very high exposure category.

Data source: Sanwei 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 Sanwei Compares to Other Months

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

This table compares monthly weather conditions in Sanwei, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	1 mm (0.1 inches)	47%	moderate
February Weather	-1°C (30°F)	1 mm (0.0 inches)	43%	moderate
March Weather	8°C (46°F)	0 mm (0.0 inches)	38%	high
April Weather	15°C (59°F)	4 mm (0.2 inches)	36%	very high
May Weather	21°C (70°F)	5 mm (0.2 inches)	30%	very high
June Weather	25°C (78°F)	8 mm (0.3 inches)	27%	extreme
July Weather	28°C (83°F)	9 mm (0.3 inches)	25%	very high
August Weather	26°C (80°F)	9 mm (0.3 inches)	25%	very high
September Weather	21°C (70°F)	1 mm (0.0 inches)	32%	very high
October Weather	11°C (51°F)	1 mm (0.0 inches)	48%	high
November Weather	1°C (35°F)	2 mm (0.1 inches)	54%	moderate
December Weather	-6°C (21°F)	1 mm (0.1 inches)	50%	low