Ireland has experienced its hottest June in 83 years, Met Éireann has said.
The median temperature for the month was 16° Celcius: over a half a degree higher than the last recorded peak.
Met Éireann Climatologist Paul Moore told Newstalk Breakfast the increase breaks the record set in 1940.
"The previous hottest June was in 1940, but for the first time we're due to break 16° as a mean temperature for June," he said.
"The 1940 hottest June had a mean temperature of 15.4°, so we're going to break that by over a half a degree.
"Twenty-three of our 25 primary stations are having their warmest June on record.
"Some stations in the west are 3° to 4° above average for June".
People walking through Dublin's St Stephen's Green enjoying the early spring sunshine. Picture by: RollingNews.ieMr Moore said every part of the country is being affected.
"At sea as well the temperatures are at record levels," he said.
"At the Irish Marine Buoy Network around the coast - that dataset just goes back to 2002 to 2007 - but the sea surface temperature average mean for June is about 15.6°.
"[This temperature] is two degrees above average; and the June maximum sea surface temperature is 19.7°".
La Barceloneta Beach in Barcelona, Spain in May 2022. Picture by: Jordi Boixareu/Alamy Live NewsMr Moore said the increase is part of a worrying trend.
"Some might think that this is nice - but if our temperatures are rising, then in other places in Europe and the world temperatures are getting higher as well," he said.
"Already very hot spots will become unlivable.
"For example in Europe last year, Europe's warming twice as fast as other continents.
"The World Meteorological Organisation announced that 16,000 people died from extreme heat across Europe last year," he added.
