Ulster

Issued at: 06 December 2025 16:30

TODAY - Saturday 6th December

A mix of cloudy periods, bright intervals and scattered showers. Light to moderate mainly southwest breezes.

TONIGHT

Clear spells and scattered showers becoming isolated tonight. Cloud amounts will increase from the southwest overnight with patchy drizzle possible in the southwest of the province by morning. Lowest temperatures of 3 to 7 degrees. Winds will become mainly light and will back south to southeast, allowing mist and fog patches to form.

Solar UV Index

Low.

UV Index

TOMORROW - Sunday 7th December

Mostly cloudy with outbreaks of rain and drizzle, turning heavy at times. The rain will gradually clear eastwards by evening. Highest temperatures of 8 to 10 degrees with light to moderate southeast winds veering southwest.

National Outlook

Overview: Overall unsettled with rain, showers and the potential for strong winds at times. An unusual amount of uncertainty in the details from Monday night onwards.

Sunday night: Sunday night will bring some clear spells, but showers will continue to spread from the Atlantic, and some will be heavy with the chance of hail and isolated thunderstorms. Lowest temperatures of 4 to 7 degrees in mostly light to moderate southerly winds, increasing fresh to strong at times in southern and western coastal parts.

Monday: Monday will start out dry and bright for many with sunny spells and scattered showers, some heavy. Cloud will increase from the southwest through the day, with rain moving into the southwest towards evening. Highest afternoon temperatures of 8 to 12 degrees with mostly moderate southerly winds, fresher in southern and western coastal parts, backing southeasterly later and freshening generally later. Current indications suggest a wet and breezy night on Monday night with rain becoming widespread overnight with some heavy falls leading to localised flooding. Lowest temperatures of 6 to 10 degrees with light to moderate southerly winds increasing moderate to fresh, and becoming strong along southern coasts.

Tuesday: Widespread rain clearing to showers on Tuesday morning with sunny spells and heavy showers gradually extending from the west. Highest afternoon temperatures of 10 to 13 degrees in fresh to strong and gusty southwesterly winds, with gales or strong gales possible near western and northwestern coasts.

Wednesday: A breezy day with sunshine and scattered showers, some heavy and prolonged, with a chance of hail and thunder, mainly in the west and north. Highest temperatures of 8 to 11 degrees in fresh to strong and gusty southwest to west winds, with gales or strong gales near northwestern coasts, gradually easing later.

Further Outlook: Continuing unsettled with further rain and showers likely and the risk of strong winds at times.