Letterkenny weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Poor
Best time to visit: April – June
What is the weather like in Letterkenny in June?
In June, Letterkenny is mild: daytime highs average 17 °C, and nights cool down to about 10 °C. The sea averages 13.2 °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 94 mm. All in all, June is not an ideal month for a holiday in Letterkenny.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 17 h 19 min04:51 – 22:10
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 79 %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 %11 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in June
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Letterkenny in June: quick answers
Is Letterkenny hot in June?
No. In June, Letterkenny is mild: daytime highs average 17 °C and nights drop to about 10 °C.
Can you swim in Letterkenny in June?
Only if you don't mind cold water: in June the sea averages just 13.2 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Letterkenny in June?
It rains often – on about 16 days, adding up to 94 mm.
Letterkenny month by month
The whole year in LetterkennyAll destinations: IrelandWhere to go in JuneSea temperature in June
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