May Weather in Sanwei, China

Last updated: August 22, 2025

In Sanwei, China, the average temperature in May hovers around 21°C (70°F), with lows dipping to 4°C (40°F) and highs soaring up to 38°C (100°F). Expect a bit of rain, with 5 mm (0.2 in) of precipitation typically spread over just 1 day. The average humidity sits comfortably at around 30%, making for a pleasant, dry climate.

May Temperature in Sanwei

In May in Sanwei, the average temperature is 21°C (70°F). Maximum temperatures can reach up to 38°C (100°F), while minimums can dip as low as 4°C (40°F). This diverse temperature range makes Sanwei an ideal destination for travelers seeking both warm days and cool evenings.

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

The chart illustrates May 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, May typically has an average temperature of 21°C (70°F), with highs reaching up to 38°C (100°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.

May Precipitation in Sanwei

In Sanwei in May, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.

May Precipitation Trends in Sanwei

The chart displays monthly precipitation patterns in Sanwei, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Sanwei, May typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 1 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Sanwei

In Sanwei in May, humidity is 30%. With an average temperature of 21°C (70°F), this humidity feels like a comfortable embrace, perfect for exploring the sights without feeling overheated or sticky during your travels.

May Average Humidity in Sanwei

This chart illustrates the average monthly humidity levels in Sanwei, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Sanwei is approximately 30%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Sanwei

In Sanwei in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Sanwei.

Maximum UV Index Levels in Sanwei for May

The chart shows the monthly maximum UV Index (UVI) for Sanwei in May, 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 May, the maximum UV index in Sanwei typically reaches 10, which falls under the very high exposure category.

Data source: Sanwei May 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 May 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 May’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 May’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