January Weather in Sanwei, China

Last updated: August 22, 2025

In January, the average temperature in Sanwei, China hovers around -7°C (19°F). Expect frosty nights, with minimum temperatures dipping as low as -20°C (-4°F), while daytime highs can reach up to 11°C (52°F). Precipitation is scarce, averaging just 1 mm (0.1 in) over 0 days, and the air carries a moderate average humidity of 47%.

January Temperature in Sanwei

In January in Sanwei, the average temperature is -7°C (19°F). Maximums can reach 11°C (52°F) and minimums can be as low as -20°C (-4°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates January 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, January typically has an average temperature of -7°C (19°F), with highs reaching up to 11°C (52°F) and lows dropping to around -20°C (-4°F).

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

January Precipitation in Sanwei

In Sanwei in January, the precipitation amount is 1 mm (0.1 in) during 0 days, indicating a very dry period.

January Precipitation Trends in Sanwei

The chart displays monthly precipitation patterns in Sanwei, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Sanwei, January typically receives around 1 mm (0.1 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Sanwei

In Sanwei in January humidity is 47%. With an average temperature of -7°C (19°F), this humidity feels like a crisp chill that can make outdoor adventures invigorating but also requires proper layering to stay comfortable during your travels.

January Average Humidity in Sanwei

This chart illustrates the average monthly humidity levels in Sanwei, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Sanwei is approximately 47%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Sanwei

In Sanwei in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Sanwei, you can check the information here.

Maximum UV Index Levels in Sanwei for January

The chart shows the monthly maximum UV Index (UVI) for Sanwei in January, 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 January, the maximum UV index in Sanwei typically reaches 3, which falls under the moderate exposure category.

Data source: Sanwei January 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 January 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 January’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 January’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