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December Weather in Haiyu, China

Last updated: August 23, 2025

The average temperature in Haiyu, China during December hovers around 7°C (45°F). Expect to experience temperatures ranging from a chilly -6°C (21°F) to a pleasant 21°C (70°F). With an average precipitation of 42 mm (1.6 in) spread over 8 days, you might want to carry an umbrella! The average humidity sits at a comfortable 77%, making this month a unique blend of cool weather and moderate moisture.

December Temperature in Haiyu

In December in Haiyu, the average temperature is 7°C (45°F). Maximums can reach 21°C (70°F), while minimums can plummet to as low as -6°C (21°F). This range makes Haiyu an ideal destination for travelers seeking a mix of mild and cooler weather experiences.

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

The chart illustrates December temperature patterns in Haiyu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haiyu, December typically has an average temperature of 7°C (45°F), with highs reaching up to 21°C (70°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec414353617177838477665645
Data source: Temperature data for Haiyu 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 Haiyu

In Haiyu in December, the precipitation amount is 42 mm (1.6 in) over a span of 8 days.

December Precipitation Trends in Haiyu

The chart displays monthly precipitation patterns in Haiyu, 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 Haiyu, December typically receives around 42 mm (1.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec54566873120161256154134464442
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Haiyu

In Haiyu in December, humidity is 77%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making it important to dress in layers for comfort while exploring the area.

December Average Humidity in Haiyu

This chart illustrates the average monthly humidity levels in Haiyu, 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 Haiyu is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%73%81%87%87%89%93%91%81%80%82%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Haiyu

In Haiyu in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Haiyu for better planning.

Maximum UV Index Levels in Haiyu for December

The chart shows the monthly maximum UV Index (UVI) for Haiyu 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 Haiyu typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec568101011111110864
Data source: Haiyu 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 Haiyu Compares to Other Months

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

This table compares monthly weather conditions in Haiyu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)54 mm (2.1 inches)70%moderate
February Weather6°C (44°F)56 mm (2.2 inches)73%high
March Weather12°C (53°F)68 mm (2.7 inches)81%very high
April Weather16°C (61°F)73 mm (2.9 inches)87%very high
May Weather22°C (71°F)120 mm (4.7 inches)87%very high
June Weather25°C (77°F)161 mm (6.3 inches)89%extreme
July Weather29°C (84°F)256 mm (10.1 inches)93%extreme
August Weather29°C (85°F)154 mm (6.1 inches)91%extreme
September Weather25°C (77°F)134 mm (5.3 inches)81%very high
October Weather19°C (66°F)46 mm (1.8 inches)80%very high
November Weather14°C (57°F)44 mm (1.7 inches)82%high
December Weather7°C (45°F)42 mm (1.6 inches)77%moderate

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