Belfast weather in December 2021

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  • 8°C maximum daytime temperature in December in Belfast8
    8°C max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Belfast20
    20 days with some rainfall
  • 2°C minimum night-time temperature in December in Belfast2
    2°C min night temperature
  • 7 hours of daylight per day in December in Belfast7
    7 hours of daylight per day
  • No heat & humidity in December in Belfast0
    No heat & humidity
  • 94 mm monthly rainfall in December in Belfast94
    94 mm of monthly rainfall
  • No UV (maximum) index in December in Belfast0
    No UV (Maximum) Index UV index
  • 10°C sea temperature in December in Belfast10
    10°C sea temperature

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The December weather guide for Belfast, Northern Ireland 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.

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How warm is it in Belfast in December?

Daytime temperatures usually reach 8°C in Belfast in December, falling to 2°C at night.

How sunny is it in Belfast in December?

There are normally 1 hour of bright sunshine each day in Belfast in December - that's 18% of daylight hours.

Is the sea cold around Belfast in December?

The average sea temperature around Belfast in December is 10°C.

Does it rain in Belfast in December?

There are usually 20 days with some rain in Belfast in December and the average monthly rainfall is 94mm.

Metric (°C / mm)  |  Imperial (°F / inches)

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Belfast sunrise & sunset times for December 2021

Browse the sunrise and sunset times for Belfast in December 2021. Select a month to view Belfast sunrise & sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st December 2021 08:23 16:03
Thursday, 16th December 2021 08:41 15:58
Friday, 31st December 2021 08:46 16:08
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