Colwyn Bay weather in December 2025

Expect daytime maximum temperatures of 46°F in Colwyn Bay, Wales in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 20 days with some rainfall and typically 5.5 inches of rainfall in the month.

  • 46°F maximum daytime temperature in December in Colwyn Bay46
    46°F max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Colwyn Bay20
    20 days with some rainfall
  • 37°F minimum night-time temperature in December in Colwyn Bay37
    37°F min night temperature
  • 8 hours of daylight per day in December in Colwyn Bay8
    8 hours of daylight per day
  • No heat & humidity in December in Colwyn Bay0
    No heat & humidity
  • 5.5 inches monthly rainfall in December in Colwyn Bay5.5
    5.5 inches of monthly rainfall
  • No UV (maximum) index in December in Colwyn Bay0
    No UV (Maximum) Index UV index
  • 48°F sea temperature in December in Colwyn Bay48
    48°F sea temperature

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The December weather guide for Wales (Colwyn Bay) 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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More about Wales

How warm is it in Colwyn Bay in December?

Daytime temperatures usually reach 46°F in Colwyn Bay in December, falling to 37°F at night.

How sunny is it in Colwyn Bay in December?

There are normally 1 hour of bright sunshine each day in Colwyn Bay in December - that's 16% of daylight hours.

How warm is the sea around Colwyn Bay in December?

The average sea temperature around Colwyn Bay in December is 48°F.

Does it rain in Colwyn Bay in December?

There are usually 20 days with some rain in Colwyn Bay in December and the average monthly rainfall is 5.5 inches.

Colwyn Bay December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 08:07 16:01
Tuesday, 16th December 2025 08:24 15:57
Wednesday, 31st December 2025 08:30 16:06

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