Ireland had its hottest day of the year so far on Thursday, June 19, Met Éireann said on Thursday night.
Temperatures reached 27.0°C (80.6F) in Mount Dillon, Co Roscommon on Thursday, the Irish national meteorological service said.
This beats this year's previous high of 25.9°C, which was recorded at Athenry on April 30.
Several regions experienced "significant highs" on Thursday, Met Éireann added.
☀️ Today is marking the hottest day of the year so far, with temperatures reaching 27.0 C🌡️ in Mount Dillon Co. Roscommon📈
Several regions experienced significant highs⬇️ pic.twitter.com/Bcajm51QLY
— Met Éireann (@MetÉireann) June 19, 2025
In her forecast on Thursday night, Met Éireann meteorologist Liz Walsh said it was a "lovely, warm and sunny evening out there today."
After noting the high temperature recorded in Co Roscommon, Walsh said: "It looks like temperatures are going to peak tomorrow [Friday] with a 20% chance of 30°C occurring in parts of the northwest.
"UV levels will continue to be high, so be sun smart and think water safety."
#UV Index Forecast for Friday⬇️
High/very high in any clear skies
High in cloudy skiesBe #SunSmart by protecting your skin and eyes from the sun 😎🧴 🧢⛱️
Check our website for more information 👇https://t.co/f7ZgRWWlY5 pic.twitter.com/YYO4LsB3rV
— Met Éireann (@MetEireann) June 19, 2025
Friday, Walsh said, "is going to be very warm or even hot."
She said it will be "largely dry with long spells of summer sunshine developing."
However, Walsh said some showers may break out locally, and they could be heavy and even thundery.
Top temperatures on Friday are going to range from 21°C to 28°C or 29°C, with the highest values occurring over the northern half of the country.
Saturday will see temperatures fall, though it will remain "pleasantly warm" in the low 20s°C for many areas with a mix of sunny spells and showers, Walsh said.
Walsh said there would be some scattered showers over the weekend, and that it would feel "a good bit fresher and cooler by the time we get to Sunday."
📢Hear the latest National Weather Forecast with Liz Walsh for tonight & the next few days⬇️#MetÉireann #WeatherPodcast #ForecastTonight pic.twitter.com/1YUBJf6THe
— Met Éireann (@MetÉireann) June 19, 2025
Ireland's highest temperatures
According to Met Éireann, the highest air temperature recorded in Ireland in the 20th century was 32.5°C (90.5°F), which was recorded at Boora, Co Offaly on June 29, 1976.
Meanwhile, Ireland's highest shaded air temperature ever was 33.3°C (91.94°F), which was recorded at Kilkenny Castle on June 26, 1887.
In a Spring 2025 climate statement published on June 5, Met Éireann said Spring 2025 was the warmest on record for Ireland, with highest sunshine totals recorded at most stations for the period of March, April, and May.
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