Ulster
Issued at: 12 December 2025 05:30
TODAY - Friday 12th December
Today will be dry for most with plenty of sunny spells and partly cloudy skies. There will be some isolated showers along Atlantic coasts. Some showers may be heavy with the chance of hail or isolated thunderstorms. Highs of 6 to 8 degrees with light to moderate southerly winds, stronger near coasts.
TONIGHT
Tonight will see a mix of clear spells and scattered showers, these mainly over western parts. The showers will become isolated through the night. Lowest temperatures of 1 to 5 degrees in moderate to fresh southwesterly winds.
Solar UV Index
Low
TOMORROW - Saturday 13th December
Rain and drizzle will spread from the Atlantic through the morning. The rain will be persistent through the day, turning heavy at times, mainly in western parts. Afternoon highs of 8 to 10 degrees in fresh to strong and gusty south to southwest winds.
National Outlook
Overview: A mobile Atlantic regime will dominate for the rest of the week and into next week too, bringing a continuation of unsettled weather.
Saturday night: A rather wet and blustery night with widespread spells of rain, heaviest in Atlantic coastal counties. Lowest temperatures of 10 to 12 degrees in fresh to strong and gusty southwesterly winds.
Sunday: A wet and blustery start to the day with widespread outbreaks of rain. The rain will clear the west and northwest later in the afternoon with drier and clearer weather following for the evening. Rain will be heaviest and most persistent in Munster and south Leinster with spot flooding possible. Highest temperatures of 11 to 13 degrees in fresh to strong southwesterly winds.
Sunday night: The rain will continue to clear southeastwards Sunday night with scattered showers following in behind and clearer spells developing. The rain may linger over parts of the southeast. Lowest temperatures of 6 to 9 degrees in moderating southwesterly winds.
Monday: Some uncertainty to the detail but indications currently suggest rain may linger over the southeast with drier and brighter conditions elsewhere with sunny spells and scattered showers that will become isolated through the day. Highest temperatures of 8 to 11 degrees in light westerly winds.
Monday night: Long clear spells developing overnight. Largely dry apart from some light showers along Atlantic coastal counties. Lowest temperatures of 0 to 4 degrees in light westerly winds.
Tuesday: A largely dry and bright day Tuesday, with isolated showers in the parts of the west. Highest temperatures of 6 to 9 degrees in a light southwesterly wind.
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.