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May Weather in Helong, China

Last updated: August 22, 2025

In May, the average temperature in Helong, China hovers around 12°C (54°F). However, be prepared for a range in temperatures, with minimums dipping to -1°C (30°F) and maximums soaring up to 32°C (90°F). The region experiences approximately 104 mm (4.1 in) of precipitation over 16 days, and the average humidity sits comfortably at 72%.

May Temperature in Helong

In May in Helong, the average temperature is 12°C (54°F). Maximum temperatures can reach 32°C (90°F), while minimum temperatures can drop as low as -1°C (30°F). Visitors should prepare for a wide range of weather conditions when traveling to Helong during this month.

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 12°C (54°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec71229435461706857432711
Data source: Temperature data for Helong generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Helong

In Helong in May, the total precipitation amount is 104 mm (4.1 in), distributed over 16 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 104 mm (4.1 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec923344310411812920586423614
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Helong

In Helong in May, humidity is 72%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that wraps around you, making outdoor excursions a bit uncomfortable. You may find yourself reaching for an extra layer as the moisture in the air adds to the coolness, prompting travelers to seek out sheltered spots to enjoy the scenery.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%75%70%65%72%82%87%89%84%83%67%70%
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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246891011118632
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.
 TemperaturePrecipitationHumidityUV
January Weather-14°C (7°F)8 mm (0.3 inches)78%low
February Weather-11°C (13°F)23 mm (0.9 inches)75%moderate
March Weather-1°C (30°F)34 mm (1.3 inches)70%high
April Weather6°C (43°F)43 mm (1.7 inches)65%very high
May Weather12°C (54°F)104 mm (4.1 inches)72%very high
June Weather16°C (62°F)118 mm (4.6 inches)82%very high
July Weather21°C (70°F)129 mm (5.1 inches)87%extreme
August Weather20°C (68°F)205 mm (8.1 inches)89%extreme
September Weather14°C (58°F)86 mm (3.4 inches)84%very high
October Weather6°C (43°F)42 mm (1.7 inches)83%high
November Weather-3°C (28°F)36 mm (1.4 inches)67%moderate
December Weather-12°C (11°F)14 mm (0.5 inches)70%low

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