Temperatures are expected to rise event further today as the heatwave continues.
Forecasters are saying temperatures will hit 30 degrees in parts of the country today - and while it may not reach those highs in Dublin, today will still be a very warm day indeed.
Met Éireann's Joan Blackburn said: "[It will] be dry with good sunshine throughout the course of the day.
"Temperatures in the Greater Dublin area.... Inland, away from the coast, they'll get up to around 25-26 degrees.
"Right along the coast probably the low 20s, because we'll have a little bit of an easterly breeze coming in off the sea - that will keep those temperatures down a bit, and probably make it more bearable."
A status yellow high temperature warning remains in place, and is currently valid until Friday evening.
Irish Water, meanwhile, is warning that supply may have to be restricted in the Greater Dublin area if demand remains high.
The Drought Management Team is meeting this morning to assess the situation.
Irish Water's Kate Gannon explained: “If demand does not decrease we will start to see homes and businesses on the edge of the network in the Greater Dublin Area experience shortages, as happened in Skerries in recent weeks.
"The longer this continues, the more people will be at risk of shortages and outages.”