The alert comes into effect for Tipperary, Waterford, and Wexford from midnight on Sunday until 3am on Monday.
Counties Clare, Cork, Donegal, Galway, Kerry, Leitrim, Limerick, Mayo, Roscommon, and Sligo will come under the same warning at 6pm on Saturday until midnight on Monday.
Likely impacts include river and surface water flooding, difficult travelling conditions and poor visibility.
This morning started cold and bright, it will remain largely dry today apart from showers on the Atlantic coastlines.
Rain will spread eastwards throughout the day, but will be mainly confined to the northwest into the evening, with highest temperatures of 6 to 10 degrees.
Christmas shoppers will need to keep the expected scattered showers in mind. Photo: Stock image
News in 90 Seconds – 12 December 2025
Tonight will see scattered showers along the west coast with temperatures reaching lows of between 1 and 5 degrees.
Saturday will have a dry and breezy start, with some bright spells expected in the south and east of the country.
Rain and drizzle will spread over Ulster and Connacht through the morning, before gradually spreading south-eastwards across the rest of the country through the afternoon and evening.
Highest temperatures on Saturday afternoon will range between 8 and 12 degrees.
There will be a wet and blustery start to Sunday, with widespread outbreaks of rain – the heaviest of this expected in Munster and south Leinster, with a possibility of spot flooding,
Highest temperatures of 11 to 13 degrees are expected, in fresh to strong south-westerly winds.
Scattered showers are expected to continue into Sunday night, with clearer spells to follow and lowest temperatures between 6 and 9 degrees.