Ulster

Issued at: 08 December 2025 16:30

TODAY - Monday 8th December

Mostly cloudy for the rest of today with scattered showers becoming isolated. A few may be heavy and thundery. Moderate south to southwest winds, fresh near some coasts at first, will back southeasterly and ease.

TONIGHT

Cloudy but mostly dry at tonight first with isolated showers and patchy mist and low cloud. It will become very wet and windy overnight as persistent rain spreads from the south. The rain will be heavy and thundery at times leading to localised flooding. Southeast winds will increase fresh to strong and gusty, and with gales possible on windward coasts. Relatively mild with lowest temperatures of 7 to 9 degrees, increasing through the night.

Solar UV Index

Low.

UV Index

TOMORROW - Tuesday 9th December

Tuesday will be a very windy or stormy day as Storm Bram tracks close to Ireland. Strong to gale force and gusty southerly winds will develop through the morning and early afternoon, then veer southwest by evening with the potential of some damaging gusts. Widespread thundery rain at first, will lead to further localised flooding. The rain will clear to scattered showers for the afternoon. Some may be heavy and thundery. Flooding is also possible in some low-lying coastal areas, especially around high tide. Mild with highest temperatures of 13 to 15 degrees.

National Outlook

Overview: While there is uncertainty in the forecast detail for this week, there will be spells of wet and windy weather, but also some drier and brighter spells too. Temperatures will be average or above for the time of year.

Tuesday night: Any rain in the north will soon clear, giving way to a dry and clear night for many, but with scattered showers on western Atlantic counties. Remaining breezy though, with moderate to fresh southwesterly winds, stronger on western Atlantic coasts. Lowest temperatures of 6 to 9 degrees.

Wednesday: There is uncertainty in the forecast detail for Wednesday. Current indications are that it will be a breezy day with a mix of showers and sunny spells. The showers, which could be heavy and with a chance of hail, will mainly be in the west and north, while the best of any dry and clear weather will be in the south and east. Highest temperatures of 9 to 12 degrees, with moderate to fresh southwesterly winds, stronger near Atlantic coasts.

Wednesday night: A windy night, current indications are that it will be mostly dry before rain pushes into western counties towards morning. Lowest temperatures of 8 to 10 degrees, with fresh to strong southerly winds.

Thursday: While there is uncertainty in the timing, a band of rain will move eastwards across the country during Thursday. It will be followed by drier conditions generally, but showers will feed into Atlantic counties. It will be windy too, with strong southerly winds easing as the rain clears. Highest temperatures of 9 to 12 degrees.

Friday: A breezy, bright and dry day for many, but with scattered showers in Atlantic counties. The showers will be heavy at times and with a chance of hail. Highest temperatures of 7 to 11 degrees, with moderate to fresh southwesterly winds.

Further outlook: Unsettled Atlantic regime to continue, bringing mixed conditions with further showers, more persistent spells of rain, and also some sunshine. Continuing mild for the time of year also.