Hong Kong weather in December 2025

Expect daytime maximum temperatures of 20°C in Hong Kong in December based on long-term weather averages. There are 6 hours of sunshine per day on average.

  • 20°C maximum daytime temperature in December in Hong Kong20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 4 days with some rainfall in December in Hong Kong4
    4 days with some rainfall
  • 15°C minimum night-time temperature in December in Hong Kong15
    15°C min night temperature
  • 11 hours of daylight per day in December in Hong Kong11
    11 hours of daylight per day
  • No heat & humidity in December in Hong Kong0
    No heat & humidity
  • 28 mm monthly rainfall in December in Hong Kong28
    28 mm of monthly rainfall
  • UV (maximum) index 7 (High) in December in Hong Kong7
    7 (High) UV index
  • 20°C sea temperature in December in Hong Kong20
    20°C sea temperature

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The December weather guide for Hong Kong 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 / mm)  |  Imperial (°F / inches)

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More about Hong Kong

How hot is it in Hong Kong in December?

Daytime temperatures usually reach 20°C in Hong Kong in December, falling to 15°C at night.

How sunny is it in Hong Kong in December?

There are normally 6 hours of bright sunshine each day in Hong Kong in December - that's 56% of daylight hours.

How warm is the sea around Hong Kong in December?

The average sea temperature around Hong Kong in December is 20°C.

Does it rain in Hong Kong in December?

There are usually 4 days with some rain in Hong Kong in December and the average monthly rainfall is 28mm.

Hong Kong December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:46 17:38
Tuesday, 16th December 2025 06:55 17:42
Wednesday, 31st December 2025 07:02 17:50

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