The Status Yellow Gale warning issued in the early hours of this morning extends from Wicklow Head to Dungarvan to Loop Head and on the south Irish Sea.
“Westerly winds will reach gale force 8 for a time this morning,” the forecaster predicted.
“Southeast winds will increase to force 6 or higher at times on Tuesday evening on Irish coasts from Carnsore Point to Mizen Head to Erris Head.”
The forecaster also issued a four-day advisory adding that spells of rain, which will be heavy at times, coupled with already saturated soils, may lead to localised flooding.
The advisory is valid from 08:58 on Tuesday until midnight on New Year's Day.
“As the last of the rain clears in the east it will be a mostly dry day today with sunny spells developing and just very isolated patches of light rain or drizzle,” Met Eireann added.
“Cloud will increase in the south later this afternoon before rain pushes into the southwest during the evening.
“As south-easterly winds freshen, rain in the southwest will extend to all areas, turning heavy at times with a risk of localised flooding.
“Winds will veer southwest to west, further increasing fresh to strong and gusty over the southern half of the country brining some drier intervals to the south also.”
It will be a wet and windy to start to Wednesday with rain in Ulster and north Leinster clearing north-eastwards through the morning.
It will be mostly cloudy, but showery conditions elsewhere will give way to some sunny spells in the afternoon.
Patchy outbreaks of rain will develop over the south once more during the evening. However, it will be “very mild” for the time of year, with highest temperatures of 10 to 14 degrees.
After a mostly dry but cloudy start, rain will push up from the south across the country on Thursday, with some heavy falls bringing risks of localised flooding.
There will be widespread rain early in the night but drier and clearer conditions will gradually spread from the south and winds will ease too.
It will be a mostly cloudy start to the last day of the year, on Friday, with patchy outbreaks of rain in the west during the morning. These will become more widespread by afternoon.
New Year's Day will start off dry in the east, but wet and blustery conditions in the west will spread across the country with the rain becoming heavy at times in the southeast.
It will be a very mild day for the time of year with highest afternoon temperatures of 13 to 15 degrees.
Sunday looks to be a drier and brighter day overall, though a little cooler. However, it will be short lived as early next week looks to become unsettled and quite mild for the time of year.