Met Éireann has issued a status yellow rainfall warning for Galway, Mayo, Sligo, Clare, Cork, Kerry, Tipperary and Waterford.
The warning is in effect for a 24-hour period between 9am on Monday 16 April and 9am Tuesday 17 April.
Rainfall accumulations of between 25mm and 50mm are expected, but could be higher on hill and mountain areas. There is also a risk of localised spot flooding.
The weather warning follows on from a weekend of gusty, showery spells of wind and rain across the country.
Many farmers continue to experience fodder shortages, and the Met Éireann farming forecast states that most soils in the country remain saturated.
However, rising temperatures are having a positive effect on grass growth in places, and the national weather forecaster predicts a dry spell after Tuesday.
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