Spelga Dam (County Down) weather

Headline:

Bright and chilly on Christmas Day.

Today:

Dry and mainly bright on Christmas Day with some weak winter sunshine. Some cloudier spells perhaps filtering in from the Irish Sea, mostly likely affecting Counties Down and Armagh. Maximum temperature 6 °C.

Tonight:

Dry with the best of the clear skies towards the north and west leading to a frost and a few freezing fog patches. Cloudier skies at times in the east. Minimum temperature -2 °C.

Friday:

Staying dry and bright on Boxing Day with sunny spells. Chilly easterly winds around Irish Sea coasts and the frost becoming extensive in the west at night. Maximum temperature 5 °C.

Outlook for Saturday to Monday:

Mainly dry and settled. Cloudy or bright with a frost at night if skies remain clear. A scattering of showers possible on Monday. Rather chilly.

High pressure is likely to dominate across the UK through to the end of the year, centred to the west over the North Atlantic. This will likely maintain relatively settled conditions at first, but with a few showers possible along some coasts exposed to the northerly wind. Towards the first weekend of January, high pressure is likely to shift a little farther away from the UK, allowing a greater chance of more changeable conditions to develop. This will bring an increased risk of some rain or showers at times which, with cold air close to the UK, may bring some wintry hazards to some places. Temperatures will probably be near or slightly below average for this period overall.

Whilst confidence is low, high pressure will probably sit close to the UK initially, with periods of relatively settled weather interspersed with more changeable conditions. Temperatures will likely be near or slightly below average during this time. Later in the period a transition to more widely changeable or unsettled conditions is possible, with a corresponding shift to near or slightly above average temperatures.