Sanya weather in December 2025

Expect daytime maximum temperatures of 79°F in Sanya, China in December based on long-term weather averages. There are 6 hours of sunshine per day on average.

  • 79°F maximum daytime temperature in December in Sanya79
    79°F max day temperature
  • 6 hours of sunshine per day
  • 8 days with some rainfall in December in Sanya8
    8 days with some rainfall
  • 64°F minimum night-time temperature in December in Sanya64
    64°F min night temperature
  • 11 hours of daylight per day in December in Sanya11
    11 hours of daylight per day
  • Low heat & humidity in December in SanyaL
    Low heat & humidity
  • 0.7 inches monthly rainfall in December in Sanya0.7
    0.7 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in December in Sanya8
    8 (Very High) UV index
  • 75°F sea temperature in December in Sanya75
    75°F sea temperature

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The December weather guide for China (Sanya) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Sanya in December?

Daytime temperatures usually reach 79°F in Sanya in December with low heat and humidity, falling to 64°F at night.

How sunny is it in Sanya in December?

There are normally 6 hours of bright sunshine each day in Sanya in December - that's 51% of daylight hours.

How warm is the sea around Sanya in December?

The average sea temperature around Sanya in December is 75°F.

Does it rain in Sanya in December?

There are usually 8 days with some rain in Sanya in December and the average monthly rainfall is 0.7 inches.

Sanya December sunrise & sunset times

Browse the sunrise and sunset times for Sanya in December 2025. Select a month to view Sanya sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:57 18:04
Tuesday, 16th December 2025 07:06 18:09
Wednesday, 31st December 2025 07:13 18:17

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