Letterkenny weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Poor
Best time to visit: April – June
What is the weather like in Letterkenny in April?
In April, Letterkenny is cool: daytime highs average 12 °C, and nights cool down to about 5 °C. The sea averages 9.4 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. It rains often – on about 16 days, adding up to 78 mm. All in all, April is not an ideal month for a holiday in Letterkenny.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 14 h 2 min06:30 – 20:32
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 72 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+1Europe/Dublin
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 20 %15 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in April
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Letterkenny in April: quick answers
Is Letterkenny hot in April?
No. In April, Letterkenny is cool: daytime highs average 12 °C and nights drop to about 5 °C.
Can you swim in Letterkenny in April?
Only if you don't mind cold water: in April the sea averages just 9.4 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Letterkenny in April?
It rains often – on about 16 days, adding up to 78 mm.
Letterkenny month by month
The whole year in LetterkennyAll destinations: IrelandWhere to go in AprilSea temperature in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences