May Weather in Helong, China

Last updated: August 22, 2025

In May, the average temperature in Helong, China hovers around 23°C (73°F), with variations ranging from a cool 10°C (51°F) to a sweltering 34°C (94°F). Expect a fair amount of rainfall, totaling approximately 247 mm (9.7 in) over 19 days. With an average humidity level of 86%, it's a month that combines warmth with a touch of humidity, making it a unique time to experience the local climate.

May Temperature in Helong

In May, in Helong, the average temperature is 23°C (73°F). Maximums can reach 34°C (94°F), while minimums can drop to as low as 10°C (51°F). Be prepared for a pleasant climate, making it an ideal time for outdoor exploration and activities.

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

The chart illustrates May temperature patterns in Helong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Helong, May typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 10°C (51°F).

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

May Precipitation in Helong

In Helong, in May, the precipitation amount is 247 mm (9.7 in) over a duration of 19 days.

May Precipitation Trends in Helong

The chart displays monthly precipitation patterns in Helong, 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 Helong, May typically receives around 247 mm (9.7 inches) of precipitation spread over approximately 19 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 Helong

In Helong in May humidity is 86%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket that makes traveling feel both sticky and heavy, often requiring frequent breaks to hydrate and seek shade.

May Average Humidity in Helong

This chart illustrates the average monthly humidity levels in Helong, 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 Helong is approximately 86%, 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 Helong

In Helong 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 Helong.

Maximum UV Index Levels in Helong for May

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

Data source: Helong 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 Helong Compares to Other Months

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

This table compares monthly weather conditions in Helong, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	47 mm (1.9 inches)	64%	high
February Weather	10°C (51°F)	97 mm (3.8 inches)	69%	very high
March Weather	15°C (59°F)	186 mm (7.3 inches)	79%	extreme
April Weather	18°C (65°F)	175 mm (6.9 inches)	81%	extreme
May Weather	23°C (73°F)	247 mm (9.7 inches)	86%	extreme
June Weather	25°C (78°F)	355 mm (14.0 inches)	83%	extreme
July Weather	28°C (83°F)	136 mm (5.4 inches)	89%	extreme
August Weather	28°C (82°F)	180 mm (7.1 inches)	84%	extreme
September Weather	26°C (78°F)	104 mm (4.1 inches)	62%	extreme
October Weather	20°C (69°F)	41 mm (1.6 inches)	64%	very high
November Weather	15°C (60°F)	70 mm (2.8 inches)	72%	very high
December Weather	10°C (50°F)	39 mm (1.5 inches)	76%	high