Wexford and Waterford and parts of Carlow, Kilkenny and Tipperary will see temperatures of 23 degrees today.
This comes as temperatures are set to rise steadily over the next five days, sending Ireland into a rare August heatwave.
Many counties will see temperatures above 20 degrees today, with much of the Midland and South seeing 22C, but it will be a few degrees cooler in the West and North West.
As the week progresses, temperatures will rise steadily from a high-pressure mass, approaching or exceeding 30 degrees in parts of the South and Central Plateau by Thursday or Friday.
This means certain counties in Ireland will be warmer this week than sunny holiday destinations – like the Algarve, Canary Islands and many European cities.
The sunny south east and parts of the south west appear set for the highest temperatures, but Met Éireann has said the Midlands will also see days in the high 20s.
As a result of the persistent hot and dry spell, all counties can expect highs in the 20s for a few days this week.
On Tuesday, parts of Dublin, Limerick, Cork and Tipperary are expected to experience 25 degrees, while much of the nation will see the heat rise to 23 or 24 degrees.
It will also be much warmer than usual at night as Met Éireann reports overnight minimum temperatures will not fall below the mid teens throughout the weekend through Thursday evening.
Parts of the south and east will see temperatures of 26 degrees by Wednesday afternoon and temperatures will rise steadily towards 30 degrees as the weekend approaches.
https://www.independent.ie/weather/revealed-the-warmest-counties-today-as-ireland-enters-august-heatwave-41896782.html Revealed: Warmest counties today as Ireland enters August heatwave