Howth weather in May 2025

Expect daytime maximum temperatures of 15°C in Howth, 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 55 mm of rainfall in the month.

  • 15°C maximum daytime temperature in May in Howth15
    15°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Howth16
    16 days with some rainfall
  • 7°C minimum night-time temperature in May in Howth7
    7°C min night temperature
  • 16 hours of daylight per day in May in Howth16
    16 hours of daylight per day
  • No heat & humidity in May in Howth0
    No heat & humidity
  • 55 mm monthly rainfall in May in Howth55
    55 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Howth5
    5 (Moderate) UV index
  • 10°C sea temperature in May in Howth10
    10°C sea temperature

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The May weather guide for Ireland (Howth) 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 Howth in May?

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

How sunny is it in Howth in May?

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

Is the sea cold around Howth in May?

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

Does it rain in Howth in May?

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

Howth May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:50 19:54
Friday, 16th May 2025 04:22 20:20
Saturday, 31st May 2025 04:03 20:41

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