Letterkenny weather in April 2026

Expect daytime maximum temperatures of 11°C in Letterkenny, Ireland in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 74 mm of rainfall in the month.

  • 11°C maximum daytime temperature in April in Letterkenny11
    11°C max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in April in Letterkenny18
    18 days with some rainfall
  • 3°C minimum night-time temperature in April in Letterkenny3
    3°C min night temperature
  • 14 hours of daylight per day in April in Letterkenny14
    14 hours of daylight per day
  • No heat & humidity in April in Letterkenny0
    No heat & humidity
  • 74 mm monthly rainfall in April in Letterkenny74
    74 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in April in Letterkenny3
    3 (Moderate) UV index

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The April weather guide for Ireland (Letterkenny) 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 Letterkenny in April?

Daytime temperatures usually reach 12°C in Letterkenny in April, falling to 5°C at night.

How sunny is it in Letterkenny in April?

There are normally 5 hours of bright sunshine each day in Letterkenny in April - that's 37% of daylight hours.

Is the sea cold around Letterkenny in April?

The average sea temperature around Letterkenny in April is 8°C.

Does it rain in Letterkenny in April?

There are usually 15 days with some rain in Letterkenny in April and the average monthly rainfall is 47mm.

Letterkenny April sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st April 2026 06:03 19:08
Wednesday, 15th April 2026 05:28 19:35
Thursday, 30th April 2026 04:53 20:04

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