Parts of Killarney, Co Kerry, and Cabra, Dublin city, experienced significant flooding on Thursday night.
Killarney saw “torrential downpours”, according to Kerry County Council.
Some roads in the town were “impassable” after “significant flash flooding”, the council said on X.
Mayor of Killarney John O’Donoghue said most of the town had been hit by “the worst flooding in a lifetime”.
⚠️ FLOODING IN KILLARNEY: Park Road and Countess Road in Killarney are impassable and should be avoided owing to significant flash flooding ⚠️ pic.twitter.com/NT7M73rpQt
— Kerry County Council – Comhairle Contae Chiarraí (@countykerry) August 27, 2026
“The clean up job will be immense and my thoughts are with all those seeing the waters come in their doors causing huge damage to homes and businesses,” he said in a post on social media.
The Kerry Independent Alliance councillor said council crews were doing their “utmost in difficult circumstances to quell the tide”.
He said, “thankfully”, water seemed to be receding from parts of the town.
“I realise many other places are still submerged,” he said.
Separately, a status orange rain warning was issued for Dublin, warning of spells of “very heavy rain”.
Some areas of the capital were flooded on Thursday night, including parts of Cabra in Dublin 7. Footage posted on X showed flooding on Offaly Road, next to Christ the King Boys National School and church.
Local Green Party councillor Feljin Jose said the flooding was “very significant”.
“I didn’t see any houses flooded, thankfully, but all the roads around the church in Cabra East were flooded,” he said, adding that it was “incredibly scary with a lot of rain to come tonight”.
Jose, who lives nearby, said Dublin City Council crews were pumping water and clearing drains.
“But the drains are full. There’s nowhere for the water to go,” he said.
“There’s much, especially around Cabra, that has been tarmacked over and concreted over. It can’t take all that water. There’s water coming out of the drains,” he said.
The orange alert, issued late on Thursday night, remained in place until 3am on Friday and warned of “very difficult travelling conditions”.
Met Éireann also extended a previously issued status yellow rain warning to include counties Kildare and Dublin.
That alert, which includes counties Carlow, Kilkenny, Wexford, Wicklow, Cork and Waterford, warned of heavy rain with a possibility of thunderstorms and potential localised flooding.
It was extended to last until 6am on Friday.