Met Éireann is still predicting a 27C scorcher this week, despite heavy rainfall and the absence of clear blue skies this Monday.
The Irish meteorological service has warned of scattered showers beginning in the east of the country and spreading westward, with heavy and thundery falls expected in some parts, as well as the potential for spot flooding.
Despite the wet start to the week, the national forecaster has pinpointed when the 27C hot blast will begin.
Read More: NCT bosses blame service struggles on 'Covid impact' as they fight claims they should be fined
They said Tuesday is to be very warm and hot. "Scattered heavy showers or localised thunderstorms will break out during the day, most likely in the west or midlands. Top temperatures of 23 to 27 degrees, although less warm along coasts due to sea breezes. Some coastal mist or fog is likely at times," the forecast adds.
Wednesday is to see little change to the soaring temperatures. with very warm or hot conditions expected, bringing with it temperatures reaching 23 to 27 degrees for most, but less warm along coasts.
"Good spells of hazy sunshine although scattered heavy downpours or thunderstorms will develop in the afternoon and evening, most likely in the west and midlands. Light southeast breezes," it said.
Thursday will also be very warm and sunny, with the risk of thunderstorms. Temperatures are to range between 22C and 26C, with little to no wind aside from sea breezes.
Alan O'Reilly of Carlow Weather, analysing the rainfall which is expected along with soaring temperatures said the overall rainfall for the week ahead based on the two main models shows much higher totals in the west with very little for east.
"Have a few days off this week? Head East or Southeast for the best of the weather and add Carlow to the list. Lots on offer here and the sun nearly always shines," he said.
