Strangford Lough - Salt Island Weather Forecast, Down

Today 16 Aug Northern Ireland

Areas of mist or fog in places and some cloud around the north coast at first, but good sunny spells soon developing through the day. Becoming warm. Light winds. Maximum Temperature 23C.

Tonight 16 Aug Northern Ireland

The evening will continue dry with bright spells. It will be a dry night with clear periods. A few mist patches forming in rural parts by morning. Light winds. Minimum Temperature 12C.

Sun 17 Aug Northern Ireland

Any mist patches quickly dispersing to leave a dry day with plenty of warm sunshine. Light winds. Maximum Temperature 24C.

Mon 18 Aug Northern Ireland

High pressure is expected to keep dry, settled weather for the first half of next week with more warm sunshine and light winds.

Tue 19 Aug Northern Ireland

High pressure is expected to keep dry, settled weather for the first half of next week with more warm sunshine and light winds.

Wed 20 Aug Northern Ireland

High pressure is expected to keep dry, settled weather for the first half of next week with more warm sunshine and light winds.

Thu 21 Aug Northern Ireland

High pressure is likely to be the dominant feature at first, initially centred near to Iceland, allowing a north to northeasterly airstream to affect much of the UK, leading to rather cool conditions. High pressure is likely to progress SE across the UK for a time, bringing widely fine and dry conditions and for some, an increase in temperatures, relative to the previous few days. Whilst this is happening a deep area of low pressure is likely to develop in the North Atlantic, linked to Tropical Storm Erin. The final week of August may see Atlantic weather systems progress over the UK, especially in the north and west, with a small chance of widely wetter and windier weather developing. The evolution of this is highly uncertain though.

Fri 22 Aug Northern Ireland

High pressure is likely to be the dominant feature at first, initially centred near to Iceland, allowing a north to northeasterly airstream to affect much of the UK, leading to rather cool conditions. High pressure is likely to progress SE across the UK for a time, bringing widely fine and dry conditions and for some, an increase in temperatures, relative to the previous few days. Whilst this is happening a deep area of low pressure is likely to develop in the North Atlantic, linked to Tropical Storm Erin. The final week of August may see Atlantic weather systems progress over the UK, especially in the north and west, with a small chance of widely wetter and windier weather developing. The evolution of this is highly uncertain though.

Strangford Lough - Salt Island Weather Forecast

Today 16 Aug Northern Ireland

Tonight 16 Aug Northern Ireland

Sun 17 Aug Northern Ireland

Mon 18 Aug Northern Ireland

Tue 19 Aug Northern Ireland

Wed 20 Aug Northern Ireland

Thu 21 Aug Northern Ireland

Fri 22 Aug Northern Ireland

Temperature Forecast Met Office

Temperature Real-Time

Castor Bay (Lurgan) Radar

National Satellite

National Synoptic

Strangford Lough - Salt Island Temperature Statistics

August Temperature

Aldergrove (49km)

Lowest 10 January, 2025

Average 2025

Highest 12 July, 2025

Lowest 2 July, 2025

Average July

Highest 12 July, 2025

Lowest 10 August, 2025

Average August

Highest 12 August, 2025

Climate (2020–Present)

Aldergrove (49km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025