Dublin weather in May 2025

Expect 15°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Dublin in May. Check more long-term weather averages for Dublin in May before you book your next holiday to Ireland in 2025/2026.

  • 15°C maximum daytime temperature in May in Dublin15
    15°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Dublin16
    16 days with some rainfall
  • 7°C minimum night-time temperature in May in Dublin7
    7°C min night temperature
  • 16 hours of daylight per day in May in Dublin16
    16 hours of daylight per day
  • No heat & humidity in May in Dublin0
    No heat & humidity
  • 55 mm monthly rainfall in May in Dublin55
    55 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Dublin5
    5 (Moderate) UV index
  • 10°C sea temperature in May in Dublin10
    10°C sea temperature

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The May weather guide for Ireland (Dublin) 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 Ireland

How warm is it in Dublin in May?

Daytime temperatures usually reach 15°C in Dublin in May, falling to 7°C at night.

How sunny is it in Dublin in May?

There are normally 6 hours of bright sunshine each day in Dublin in May - that's 38% of daylight hours.

Is the sea cold around Dublin in May?

The average sea temperature around Dublin in May is 10°C.

Does it rain in Dublin in May?

There are usually 16 days with some rain in Dublin in May and the average monthly rainfall is 55mm.

Dublin May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:51 19:55
Friday, 16th May 2025 04:23 20:20
Saturday, 31st May 2025 04:04 20:42

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