Colwyn Bay weather in May 2025

Expect daytime maximum temperatures of 57°F in Colwyn Bay, Wales in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 2.9 inches of rainfall in the month.

  • 57°F maximum daytime temperature in May in Colwyn Bay57
    57°F max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Colwyn Bay16
    16 days with some rainfall
  • 43°F minimum night-time temperature in May in Colwyn Bay43
    43°F min night temperature
  • 16 hours of daylight per day in May in Colwyn Bay16
    16 hours of daylight per day
  • No heat & humidity in May in Colwyn Bay0
    No heat & humidity
  • 2.9 inches monthly rainfall in May in Colwyn Bay2.9
    2.9 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Colwyn Bay5
    5 (Moderate) UV index
  • 52°F sea temperature in May in Colwyn Bay52
    52°F sea temperature

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The May 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 May?

Daytime temperatures usually reach 57°F in Colwyn Bay in May, falling to 43°F at night.

How sunny is it in Colwyn Bay in May?

There are normally 6 hours of bright sunshine each day in Colwyn Bay in May - that's 39% of daylight hours.

How warm is the sea around Colwyn Bay in May?

The average sea temperature around Colwyn Bay in May is 52°F.

Does it rain in Colwyn Bay in May?

There are usually 16 days with some rain in Colwyn Bay in May and the average monthly rainfall is 2.9 inches.

Colwyn Bay May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:41 19:45
Friday, 16th May 2025 04:13 20:10
Saturday, 31st May 2025 03:55 20:31

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