Met Éireann has confirmed that today was the hottest day in Ireland since 1976.
Temperatures reached a peak of 32 degrees at Shannon Airport today.
Forecaster Joanna Donnelly says it's record-breaking:
“We have got over 30C at several stations now across the country today and yesterday,” she said.
“We have gone over 30C I would say more times in the past two days - more widely - than any time in the past ten years
“So it has been a hot spell – and it is not over yet.”
Maximum temperatures from around the country today. Shannon Airport at 32 degrees is the highest temperature recorded in Ireland since 29 June 1976. pic.twitter.com/h30wKjKPS2
— Met Éireann (@MetEireann) June 28, 2018
Irish Water has lowered night time water pressure in the Greater Dublin area to conserve supplies.
The utility say demand has reached unsustainable levels as the heatwave continues.
It's put additional strain on the system with 100 water supply schemes around the country at risk including Kilkenny, Longford, Athlone, Galway, Louth and Kerry.
Today's max temp of 32.0°C recorded at Shannon Airport is the highest JUNE temperature since 1976, when Boora in Co. Offaly recorded 32.5°C
Notable high temperatures:
32.3°C Elphin, Co.Roscommon, July 2006
32.2°C Oak Park, Co. Carlow, July 1983
33.3°C Kilkenny Castle, June 1887— Met Éireann (@MetEireann) June 28, 2018
Meanwhile, Gardaí are asking people to stay away from the Sally Gap and Glencree where Military Road has been closed to allow emergency services deal with gorse fires.
It comes as a code red forest fire warning remains in place - until at least tomorrow.
An Irish Air Corps helicopter has also been assisting Dublin Fire Brigade and Coillte teams battle a large forest fire in the Saggart area of County Dublin tonight.
The blaze broke out at the weekend but re-ignited this afternoon, and is currently affecting a large area of Lugg wood and Slade Valley.
Since Monday, crews have been battling four forest fires, 44 gorse fires, and 147 grass fires in Dublin and surrounding areas.