Colwyn Bay weather in December 2025

Expect daytime maximum temperatures of 8°C in Colwyn Bay 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 140 mm of rainfall in the month.

  • 8°C maximum daytime temperature in December in Colwyn Bay8
    8°C max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Colwyn Bay20
    20 days with some rainfall
  • 3°C minimum night-time temperature in December in Colwyn Bay3
    3°C 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
  • 140 mm monthly rainfall in December in Colwyn Bay140
    140 mm of monthly rainfall
  • No UV (maximum) index in December in Colwyn Bay0
    No UV (Maximum) Index UV index
  • 9°C sea temperature in December in Colwyn Bay9
    9°C sea temperature

More about Colwyn Bay

Colwyn Bay by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Wales

Warner Hotels: up to £150 off spring breaks

  • Save up to £150 on spring stays at Warner Hotels
  • Enjoy breakfast, dinner & entertainment included
  • Travel before 31st May 2025 (inclusive)
Go to Warner Hotels deal >>

Expires at 23:59 on Monday 10th Mar 2025 · View all Warner Hotels offers

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 / mm)  |  Imperial (°F / inches)

Back to top

More about Wales

How warm is it in Colwyn Bay in December?

Daytime temperatures usually reach 8°C in Colwyn Bay in December, falling to 3°C 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.

Is the sea cold around Colwyn Bay in December?

The average sea temperature around Colwyn Bay in December is 9°C.

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 140mm.

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

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^