Remember to carry an umbrella today because Dublin will be lashed with widespread showers.
The morning will start off largely dry with “well scattered showers and some bright spells”, a Met Eireann forecaster said.
But the evening will bring widespread showers with it with.
Daytime temperatures will range between 6C to 8C but tonight will be milder than recent nights with minimum temperatures of 4C to 6C.
Tomorrow will be dry and bright with a shower or two expected in the late evening. Temperatures will range between 7C to 9C.
The national forecast says the weather for the rest of the week will be mixed with some bright and dry days interspersed with wet and windy days.
The forecaster said: “Cool initially, becoming milder and perhaps more settled towards New Year.
“Monday Night: Rain in the south on Monday night, becoming patchy later. It will stay largely dry further north with just scattered showers and clear spells, allowing some frost to form here with temperatures falling to between -1 and + 2 degrees.
“A few patches of mist or fog forming in northern areas also. Milder in the south under cloud-cover with minimums of 3 to 4 degrees. Winds will be light variable.
“Tuesday, Christmas Eve: Patchy light rain in the south early Tuesday, mostly dry elsewhere with scattered showers and some bright spells. Showers most frequent in the northwest. The rain will become heavier for a time in the southwest before clearing later in the day.
“Highs of 5 to 8 degrees in mostly light variable winds. Mostly dry on Tuesday night with clear spells and a widespread frost. Minimum temperatures of -1 to +2 degrees. Light to moderate westerly winds.
“Wednesday, Christmas Day: A crisp, bright start for most of us on Christmas morning with frost clearing. But rain will arrive in the southwest early in the day and spread steadily northwards.
“It will however stay mostly dry for the north and east of the country until after dark. Easterly winds becoming fresh to strong in the south later in the day. Maximum temperatures of 5 to 6 degrees in the north, and 7 to 9 degrees in the south.
“The rain will push further north and east Wednesday evening into Wednesday night, reaching all areas. Minimum temperatures on Wednesday night of +1 to +2 degrees, and this could be cold enough for the rain to fall as sleet over high ground.
“Thursday, St Stephen's Day: There is a little more uncertainty than usual regarding the forecast for Wednesday night and Thursday with the potential for some quite windy weather in the west.
“Present indications suggest that wet and windy weather will remain with us early on Thursday, with a clearance from the west later. Maximum temperatures of 6 to 9 degrees, in fresh to strong and gusty variable winds.”
