Lough Foyle - Longfield Bank Weather Forecast, Derry

Today 10 Dec Northern Ireland

Rather cloudy, with eastern parts seeing the best of any sunny spells, with especially across the north through the morning, blustery showers. Occasionally strong southwesterly winds, with a risk of coastal gales in the north. Maximum Temperature 11C.

Tonight 10 Dec Northern Ireland

Mainly dry with rather a lot of cloud around, although some clear spells expected across northern and eastern parts through the evening and overnight. Occasionally strong southwesterly then southerly winds. Minimum Temperature 5C.

Thu 11 Dec Northern Ireland

Bright start, with sunny spells across northern and eastern parts, but becoming cloudy with outbreaks of occasionally heavy rain edging east from late morning. Drier in west towards evening. Breezy. Maximum Temperature 11C.

Fri 12 Dec Northern Ireland

Sunny spells and a few showers Friday. Unsettled this weekend with showers or longer spells of occasionally heavy rain, mild but windy with strong southerly or southwesterly winds, coastal gales.

Sat 13 Dec Northern Ireland

Sunny spells and a few showers Friday. Unsettled this weekend with showers or longer spells of occasionally heavy rain, mild but windy with strong southerly or southwesterly winds, coastal gales.

Sun 14 Dec Northern Ireland

Sunny spells and a few showers Friday. Unsettled this weekend with showers or longer spells of occasionally heavy rain, mild but windy with strong southerly or southwesterly winds, coastal gales.

Mon 15 Dec Northern Ireland

A continuation of a similar pattern to that seen through early December is anticipated, especially at first, as frontal systems from the Atlantic spread into and across the UK, interspersed with some temporary drier interludes. These will bring spells of rain, which may be heavy at times leading to the risk of some impacts given how wet it has been lately, especially in the west. In addition, there is also potential for some periods of strong winds at times too. Whilst it will often be mild, later in the period there may be a slight downward trend in temperature, especially across northern parts of the UK, and the chance of drier spells increases. There may also be a slightly higher chance of some wintry hazards at times in the north.

Tue 16 Dec Northern Ireland

A continuation of a similar pattern to that seen through early December is anticipated, especially at first, as frontal systems from the Atlantic spread into and across the UK, interspersed with some temporary drier interludes. These will bring spells of rain, which may be heavy at times leading to the risk of some impacts given how wet it has been lately, especially in the west. In addition, there is also potential for some periods of strong winds at times too. Whilst it will often be mild, later in the period there may be a slight downward trend in temperature, especially across northern parts of the UK, and the chance of drier spells increases. There may also be a slightly higher chance of some wintry hazards at times in the north.

Lough Foyle - Longfield Bank Weather Forecast

Today 10 Dec Northern Ireland

Tonight 10 Dec Northern Ireland

Thu 11 Dec Northern Ireland

Fri 12 Dec Northern Ireland

Sat 13 Dec Northern Ireland

Sun 14 Dec Northern Ireland

Mon 15 Dec Northern Ireland

Tue 16 Dec Northern Ireland

Temperature Forecast Met Office

Temperature Real-Time

Castor Bay (Lurgan) Radar

National Satellite

National Synoptic

Lough Foyle - Longfield Bank Temperature Statistics

December Temperature

Magilligan No 2 (15km)

Lowest 10 January, 2025

Average 2025

Highest 12 July, 2025

Lowest 21 November, 2025

Average November

Highest 6 November, 2025

Lowest 4 December, 2025

Average December

Highest 9 December, 2025

Climate (2020–Present)

Magilligan No 2 (15km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025