The public is being warned to wear sunscreen this week, as the warmest day so far this year is expected on Wednesday.
A mini-heatwave has gripped the country with temperatures in the low 20s recorded.
Sunburn Index today Monday:
— Met Éireann (@MetEireann) June 16, 2014
High in all parts of the country
These are expected to hit the mid-20s by Wednesday.
Dry with cloud breaking to give sunny spells in most areas.Highs of 17-23C, warmest inland
— Met Éireann (@MetEireann) June 16, 2014
However, Met Éireann forecaster David Rodgers says it will become cooler by next weekend.
"Later in the week, the temperatures will have peaks by the middle of the week, but will come down then a little bit during Thursday and Friday," he said.
"They'll still be generally normal or a little above normal, but there will be a northerly breeze coming in to affect northern and north-western areas, and that'll make coastal regions there quite a bit cooler at that stage, and that situation will persist then through the weekend.
"We’re in summer and, you know, periods of settled, fine weather like this do occur occasionally during summertime.
"Beyond a week or so ahead, it’s difficult to give any further indications."