A number of Status Yellow weather warnings for 18 counties has now expired.
A Status Yellow rainfall warning was in place for Cavan, Monaghan, Cork, Tipperary and Waterford, as well as all of Leinster, but expired at 11pm tonight.
In the northwest, a Status Yellow Rain/Snow warning for Donegal was in place overnight, but expired at 2pm.
The National Directorate for Fire and Emergency Management (NDFEM) has said the entire country is vulnerable to flooding over the next 24 hours.
NDFEM National Director Keith Leonard had said earlier that there was a complex picture with onshore winds, high tides and heavy rainfall forecast.
"Unfortunately, it's been a continual theme throughout the last number of weeks where fire services and emergency services and coastguard have had to rescue people from cars.
'It's been raining pretty much most days'
Senior forecaster with Met Éireann Gerry Murphy, said: "The rainfall amounts have not been excessive, the highest amount so far has been 25mm at JFK Park in Co Wexford, and then there have been high amounts of between 10[mm] and 20[mm] in parts of Wicklow.
"But given the amount of rain that has fallen over the past month, it doesn't take excessive amounts to cause some flooding in places.
Speaking to RTÉ's Drivetime programme, Mr Murphy said that while the east of the country is having twice the long-term average February rainfall, amounts in the east for January were "way above average as well".
"It's been raining pretty much most days since about the 9th of January," and that so far in February rainfall at Dublin Airport, for example, has been 115mm, he said.
By contrast he said, Valentia and Belmullet observatories in the west have recorded less than 50% of their long-term average rainfall for the month of February.
He said it will continue cold tonight with temperatures between zero and 5 degrees with maybe some frost in places.
Mr Murphy said it will still feel "chilly" tomorrow, Thursday, with temperatures from 5 to 10 degrees, but while there will be further bands of rain or showers at times "mainly coming from the west" from Friday, by Saturday and Sunday temperatures will lift to between 10 and 13 degrees "which will take that bite out of the air".
