The weather will remain unsettled this week, with very wet and windy weather possible in places on Wednesday and Thursday, Met Éireann said.
Sunday will see a mix of sunny spells and showers, heaviest in east Leinster, north Ulster and west Munster with localized flooding and maximum temperatures of 11 to 13 degrees.
There will be a mix of clear rain and isolated showers on Sunday evening, most common in Munster and Ulster. The wind will be light and changeable in most areas, causing mist and mist to form and minimum temperatures of 1 to 5 degrees.
Fog and mist will slowly clear on Monday morning. In many places it will initially remain dry. Heavy showers will move south during the morning and move further north during the day.
This will transition into extended periods of rain at times, potentially causing localized flooding with maximum temperatures of 10 to 13 degrees. The rain will move southwest on Tuesday morning and move northeast across the country, reaching Ulster in the evening, with maximum temperatures of 10 to 14 degrees.
It will remain wet on Tuesday night, with further outbreaks of rain across the country, at times heavy with lows of 7 to 10 degrees.
Rain will move northeast on Wednesday morning and afternoon, followed by sunny spells and a few showers. However, more rain is expected to move southwest later this afternoon and spread across the southern half of the country as the evening progresses.
The heaviest rain is expected in Munster and south Leinster, with flooding possible. The rain is also accompanied by strong easterly winds with maximum temperatures of 9 to 12 degrees.
Wexford County Council has reported significant flooding in parts of the county.
The flooding occurred in Wexford town on Saturday, on the N30 Palace to Clonroche and on the N25 between Larkins Cross and the Maldron Roundabout. There was a road closure with local diversions on the R730 near Ardcandrisk.
Meanwhile, in Cork on Saturday evening, some flooding was reported at the South Mall and Lavitts Quay.
Wandesford Quay and Sharman Crawford Street were closed from 5pm.