Dublin weather in May 2021

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  • 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 Dublin, Ireland 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.

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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 sunrise & sunset times for May 2021

Browse the sunrise & sunset times for Dublin in May 2021. Select a month to view Dublin sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Saturday, 1st May 2021 05:51 20:55
Sunday, 16th May 2021 05:23 21:20
Monday, 31st May 2021 05:04 21:42
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where is warm in Ireland in May for 2021/2022?

Below are average maximum temperatures at popular destinations in Ireland in May. Select a destination to see more weather parameters.

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