A DELUGE of up to three inches of rain is expected to lash down all over the country today, sparking flooding fears.
Munster and south Leinster experienced heavy rain during the night, and this will spread across the country as the day moves on.
Heavy showers are set to continue tomorrow and on Wednesday, though temperatures will remain mild.
Traffic delays are expected if flooding occurs.
Met Eireann forecaster Pat Clarke told independent.ie: "It's fairly close and humid with heavy rain. It's been lashing down in places like Munster and south Leinster in the latter half of the night."
"The rain band is moving up across from the south, and it's beginning to improve in the south as the rain moves up."
"That rain will now push into north Leinster, Connaught, and Ulster over time. There will be more rain and showers all over the country today," Mr Clarke said.
"Everywhere is going to get rain at some stage today. Those who have had a dry start to the day will get rain. And those who had heavy rain this morning will get another little bit but then it'll improve."
October has already been one of the wettest on record, with three times the average rainfall in some places. Currently our weather patterns are blowing in from the south, according to Met Eireann, which can bring either pleasant or wet weather..
"All our weather is coming from the south. When it's dry it's very pleasant, like yesterday. But there's a lot of moisture in the air in the last few days."