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December Weather in Haiyou, China

Last updated: August 22, 2025

In Haiyou, China during December, the average temperature hovers around 9°C (49°F). While you may experience chilly moments with a minimum of -3°C (27°F), the weather can also be pleasantly warm, peaking at 24°C (76°F). Expect about 49 mm (1.9 in) of precipitation over approximately 8 days, and prepare for humid conditions with an average humidity of 80%.

December Temperature in Haiyou

In December in Haiyou, the average temperature is 9°C (49°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop as low as -3°C (27°F). Be prepared for a wide range of temperatures to make the most of your travels.

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

The chart illustrates December temperature patterns in Haiyou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haiyou, December typically has an average temperature of 9°C (49°F), with highs reaching up to 24°C (76°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec464756637176838478685949
Data source: Temperature data for Haiyou 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 Haiyou

In Haiyou in December, the precipitation amount is 49 mm (1.9 in) spread over 8 days.

December Precipitation Trends in Haiyou

The chart displays monthly precipitation patterns in Haiyou, 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 Haiyou, December typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec5859113941842942812161351086849
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Haiyou

In Haiyou in December, humidity is 80%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting a need for layered clothing to stay comfortable while traveling.

December Average Humidity in Haiyou

This chart illustrates the average monthly humidity levels in Haiyou, 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 Haiyou is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%73%80%86%88%89%91%88%79%79%80%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Haiyou

In Haiyou in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Haiyou.

Maximum UV Index Levels in Haiyou for December

The chart shows the monthly maximum UV Index (UVI) for Haiyou 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 Haiyou typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6710101212121211875
Data source: Haiyou 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 Haiyou Compares to Other Months

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

This table compares monthly weather conditions in Haiyou, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)58 mm (2.3 inches)68%high
February Weather9°C (48°F)59 mm (2.3 inches)73%high
March Weather13°C (56°F)113 mm (4.5 inches)80%very high
April Weather17°C (64°F)94 mm (3.7 inches)86%very high
May Weather22°C (72°F)184 mm (7.2 inches)88%extreme
June Weather25°C (77°F)294 mm (11.6 inches)89%extreme
July Weather28°C (83°F)281 mm (11.0 inches)91%extreme
August Weather29°C (84°F)216 mm (8.5 inches)88%extreme
September Weather26°C (78°F)135 mm (5.3 inches)78%extreme
October Weather20°C (69°F)108 mm (4.3 inches)79%very high
November Weather15°C (60°F)68 mm (2.7 inches)80%high
December Weather9°C (49°F)49 mm (1.9 inches)80%moderate

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