May Weather in Heyun, China

Last updated: August 22, 2025

In May, the average temperature in Heyun, China is a pleasant 25°C (78°F). However, temperatures can vary, dipping to a minimum of 13°C (56°F) and soaring to a maximum of 34°C (94°F). During this month, expect about 228 mm (9.0 in) of precipitation over 22 days, contributing to an average humidity of 79%.

May Temperature in Heyun

In May in Heyun, the average temperature is 25°C (78°F). Maximum temperatures can reach 34°C (94°F), while the minimum can drop as low as 13°C (56°F). It's a perfect time for travelers to enjoy a mix of warm days and cooler evenings, making it ideal for outdoor activities and exploration.

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

The chart illustrates May temperature patterns in Heyun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heyun, May typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (94°F) and lows dropping to around 13°C (56°F).

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

May Precipitation in Heyun

In Heyun in May, the total precipitation amount is 228 mm (9.0 in) spread over 22 days.

May Precipitation Trends in Heyun

The chart displays monthly precipitation patterns in Heyun, 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 Heyun, May typically receives around 228 mm (9.0 inches) of precipitation spread over approximately 22 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 Heyun

In Heyun in May humidity is 79%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities less inviting and requiring frequent breaks to stay refreshed.

May Average Humidity in Heyun

This chart illustrates the average monthly humidity levels in Heyun, 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 Heyun is approximately 79%, 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 Heyun

In Heyun in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Heyun.

Maximum UV Index Levels in Heyun for May

The chart shows the monthly maximum UV Index (UVI) for Heyun 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 Heyun typically reaches 13, which falls under the extreme exposure category.

Data source: Heyun 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 Heyun Compares to Other Months

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

This table compares monthly weather conditions in Heyun, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	42 mm (1.6 inches)	64%	high
February Weather	14°C (57°F)	114 mm (4.5 inches)	68%	very high
March Weather	18°C (65°F)	205 mm (8.1 inches)	73%	extreme
April Weather	21°C (70°F)	224 mm (8.8 inches)	71%	extreme
May Weather	25°C (78°F)	228 mm (9.0 inches)	79%	extreme
June Weather	27°C (81°F)	472 mm (18.6 inches)	77%	extreme
July Weather	28°C (83°F)	236 mm (9.3 inches)	88%	extreme
August Weather	28°C (83°F)	291 mm (11.5 inches)	88%	extreme
September Weather	27°C (81°F)	164 mm (6.4 inches)	75%	extreme
October Weather	23°C (73°F)	75 mm (2.9 inches)	65%	very high
November Weather	19°C (66°F)	46 mm (1.8 inches)	64%	very high
December Weather	14°C (57°F)	29 mm (1.1 inches)	69%	high