National Forecast
Issued at: 20 December 2025 22:04
TONIGHT
Breezy conditions with outbreaks of rain and drizzle across much of the country, driest in the southwest. The rain will gradually ease and become patchier as it clears northwards with a few showers following. Lowest temperatures of -1 to +6 degrees, coldest in Munster and Connacht with southeasterly winds easing as the rain clears with some mist and fog developing.
TOMORROW - Sunday 21st December
Variable cloud and sunny spells tomorrow morning with just well scattered showers. Some longer spells of rain will spread up from the southeast in the afternoon and extend northwestwards. Highest temperatures of 5 to 10 degrees in light, occasionally moderate easterly or variable breezes.
National Outlook
Overview: While there is a little uncertainty in the exact details over the next few days, conditions are likely to become more settled as high pressure moves in bringing mostly dry and calm weather throughout the Christmas period, cooler at times too.
Sunday night: Mostly cloudy with patchy outbreaks of rain and drizzle gradually easing overnight. Lowest temperatures of 3 to 8 degrees for Ulster, Leinster; -1 to +3 for Munster and Connacht, in light easterly or variable breezes. Mist and fog patches too with slight chance of frost and ice forming where clear breaks occur.
Monday: Mostly cloudy and misty with patchy rain and drizzle. More persistent spells of rain will affect the east and north. Highest temperatures of 5 to 9 degrees, in just a light easterly breeze.
Monday night: Mostly cloudy with patchy rain and drizzle and occasional clearer breaks, mainly near western coasts. Mist and fog patches too. Lowest temperatures of -1 to +4 degrees, coldest in the southwest in light southerly or variable winds.
Tuesday: Still some uncertainty in the details for Tuesday but it looks like it'll be cloudy to begin with patchy rain, drizzle and mist, giving way to a mix of sunny spells and showers from the west in the afternoon. Highest temperature of 5 to 9 degrees with just light variable breezes. Mist and fog places also.
Current indications for Christmas Eve and Christmas Day suggest it'll be rather cold and dry with a mix of cloud and crisp sunny spells. Frost and ice will form in places to begin and end each day. Coastal showers will move up along the East coast, but will be isolated, in light to moderate east to northeast breezes.
Temperature circle (°C): maximum and minimum temperature forecast for each day. Wind symbol (km/h): arrow points in the direction the wind is blowing. The weather and wind icons: for the time of maximum temperature and minimum temperature.