Dublin weather in May 2026

Expect daytime maximum temperatures of 59°F in Dublin, Ireland 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 2.2 inches of rainfall in the month.

  • 59°F maximum daytime temperature in May in Dublin59
    59°F max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Dublin16
    16 days with some rainfall
  • 45°F minimum night-time temperature in May in Dublin45
    45°F 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
  • 2.2 inches monthly rainfall in May in Dublin2.2
    2.2 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Dublin5
    5 (Moderate) UV index
  • 50°F sea temperature in May in Dublin50
    50°F 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)  |  Imperial (°F)

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More about Ireland

How warm is it in Dublin in May?

Daytime temperatures usually reach 59°F in Dublin in May, falling to 45°F 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.

How warm is the sea around Dublin in May?

The average sea temperature around Dublin in May is 50°F.

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 2.2 inches.

Dublin May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 04:51 19:54
Saturday, 16th May 2026 04:24 20:20
Sunday, 31st May 2026 04:05 20:42

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