Porthcawl weather in May 2026

Expect daytime maximum temperatures of 15°C in Porthcawl, 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 88 mm of rainfall in the month.

  • 15°C maximum daytime temperature in May in Porthcawl15
    15°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Porthcawl16
    16 days with some rainfall
  • 8°C minimum night-time temperature in May in Porthcawl8
    8°C min night temperature
  • 16 hours of daylight per day in May in Porthcawl16
    16 hours of daylight per day
  • No heat & humidity in May in Porthcawl0
    No heat & humidity
  • 88 mm monthly rainfall in May in Porthcawl88
    88 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Porthcawl5
    5 (Moderate) UV index
  • 11°C sea temperature in May in Porthcawl11
    11°C sea temperature

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Porthcawl by month

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The May weather guide for Wales (Porthcawl) 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 Wales

How warm is it in Porthcawl in May?

Daytime temperatures usually reach 15°C in Porthcawl in May, falling to 8°C at night.

How sunny is it in Porthcawl in May?

There are normally 6 hours of bright sunshine each day in Porthcawl in May - that's 40% of daylight hours.

Is the sea cold around Porthcawl in May?

The average sea temperature around Porthcawl in May is 11°C.

Does it rain in Porthcawl in May?

There are usually 16 days with some rain in Porthcawl in May and the average monthly rainfall is 88mm.

Porthcawl May sunrise & sunset times

Browse the sunrise and sunset times for Porthcawl in May 2026. Select a month to view Porthcawl sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 04:47 19:38
Saturday, 16th May 2026 04:22 20:02
Sunday, 31st May 2026 04:04 20:21

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