National Forecast
Issued at: 21 December 2025 17:26
TODAY - Sunday 21st December
There'll be a good lot of dry weather in many areas this evening with a mix of cloud and some clear spells. However, it'll continue wetter in Munster, with further outbreaks of rain and drizzle slowly moving westwards. A little rain and drizzle will continue in parts of Ulster also. Light, occasionally moderate, easterly or variable breezes.
TONIGHT
Mostly cloudy tonight with rain and drizzle clearing in the southwest at first and with further scattered outbreaks of rain and drizzle moving in from the east overnight. Lowest temperatures of 1 to 6 degrees generally but staying slightly milder over Ulster and along eastern and southern coasts. Northeasterly winds will be moderate along southern and eastern coasts, but will be mostly light and those light winds will allow mist and fog patches to develop, mainly over the western half of the country.
TOMORROW - Monday 22nd December
Mostly cloudy for much of tomorrow with outbreaks of patchy rain and drizzle spreading from the east. Overnight mist and fog will be slow to clear, lingering for much of the day in places, mainly in the west and in the Midlands. It'll become drier across much of the eastern half of the country through the afternoon, with a few bright or sunny spells developing. The clearance will extend further westwards later. Highest temperatures of 6 to 11 degrees in mostly light easterly or variable breezes, moderate though in coastal parts of the east, south and north at times.
National Outlook
Overview: Turning drier and more settled with high pressure building.
Monday night: Cloud with outbreaks of rain and drizzle will gradually clear northeastwards overnight with clear spells and some showers following from the southeast. Lowest temperatures of 1 to 6 degrees generally but falling colder in some midland areas. Fog will form in mostly light easterly breezes.
Tuesday: Foggy for many in the morning, persisting in some places through the day. Limited sunny spells will occur but it will be largely dry with just some light rain or drizzle at times, mainly near coasts. Highest temperatures of 6 to 10 degrees in light northeasterly breezes.
Tuesday night: Some clear spells but overall mostly cloudy. Dry apart from possible spots of light rain or drizzle near eastern coasts. Lowest temperatures of 3 to 7 degrees in light, occasionally moderate northeasterly breezes.
Christmas Eve (Wednesday): Largely dry with just a few light showers or spots of drizzle. The best of any sunny spells will be in the afternoon. Highest temperatures of 6 to 9 degrees generally with light to moderate easterly winds, fresh at times near exposed coasts.
Christmas Day (Thursday): Largely dry with a mix of cloud and sunny spells and just a few light showers. Highest temperatures of 4 to 8 degrees in mostly light to moderate easterly winds, fresher near eastern and along southern coasts.
Further Outlook: High pressure continuing to dominate through the rest of the week with predominately dry conditions and highest temperatures generally ranging between 4 and 8 degrees.
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.