Met Eireann has issued rainfall warnings for a number of counties tomorrow.
A status orange alert is in place for Cork, where between 40 and 70 millimetres is expected, with heaviest rain along the south coast and in mountainous areas.
While in Kerry, Limerick, Tipperary and Waterford, between 25 and 50 millimetres of rainfall is forecast.
Met Eireann predicts rain from early tomorrow morning to continue throughout the day.
There will be localised flooding, particularly in south Munster.
Highest temperatures are said to be seven to 10 degrees.