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December Weather in Helong, China

Last updated: August 22, 2025

In December, the average temperature in Helong, China hovers around 10°C (50°F). Expect a temperature range with a minimum of -1°C (30°F) and a maximum of 26°C (79°F). With an average humidity of 76%, you can anticipate about 39 mm (1.5 in) of precipitation spread over 6 days throughout the month.

December Temperature in Helong

In December in Helong, the average temperature is 10°C (50°F). Maximums can reach 26°C (79°F), while minimums can drop as low as -1°C (30°F). Pack accordingly to enjoy a comfortable trip, as temperatures can vary significantly during your stay.

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

The chart illustrates December 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, December typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (79°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec485059657378828278685949
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.

December Precipitation in Helong

In Helong in December, the precipitation amount is 39 mm (1.5 in), occurring over the course of 6 days.

December Precipitation Trends in Helong

The chart displays monthly precipitation patterns in Helong, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Helong, December typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec4897186175247355136180104417039
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Helong

In Helong in December, humidity is 76%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps through your clothes, making outdoor activities quite uncomfortable and necessitating a layer of warmth for traveling.

December Average Humidity in Helong

This chart illustrates the average monthly humidity levels in Helong, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Helong is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%69%79%81%86%83%90%84%62%64%72%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Helong

In Helong in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Helong, you can refer to this Hourly UV Index in Helong.

Maximum UV Index Levels in Helong for December

The chart shows the monthly maximum UV Index (UVI) for Helong in December, 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 December, the maximum UV index in Helong typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec7911111313131311986
Data source: Helong December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)47 mm (1.9 inches)64%high
February Weather10°C (51°F)97 mm (3.8 inches)69%very high
March Weather15°C (59°F)186 mm (7.3 inches)79%extreme
April Weather18°C (65°F)175 mm (6.9 inches)81%extreme
May Weather23°C (73°F)247 mm (9.7 inches)86%extreme
June Weather25°C (78°F)355 mm (14.0 inches)83%extreme
July Weather28°C (83°F)136 mm (5.4 inches)89%extreme
August Weather28°C (82°F)180 mm (7.1 inches)84%extreme
September Weather26°C (78°F)104 mm (4.1 inches)62%extreme
October Weather20°C (69°F)41 mm (1.6 inches)64%very high
November Weather15°C (60°F)70 mm (2.8 inches)72%very high
December Weather10°C (50°F)39 mm (1.5 inches)76%high

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