Mountain weather

Mourne Mountains

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Mourne Mountains Mountain weather forecast table

Confidence

High for rather dull and misty conditions on Thursday and at times on Friday, but low confidence for the timing and extent of cloud cover. High for a change to colder, more unsettled weather from Sunday.

Sunrise:
Sunset:

Mountain weather forecast

Dry and bright initially, soon becoming dull and drizzly.

Wind direction and speed (mph)
Altitude above mean sea level
Wind gust (mph)
Altitude above mean sea level

Altitude above mean sea level

Altitude above mean sea level

Additional weather information

Weather

A dry and perhaps bright morning but thick cloud will shroud the hills from late morning bringing murky conditions as well as some spells of drizzle, this persisting into the evening.

Chance of cloud-free mountain/hill tops at 700m

60% initially with low cloud generally confined to valleys, but chances quickly vanishing through morning as cloud sets in above around 500m, perhaps lower at times.

Visibility

Good through morning, deteriorating to poor or very poor from late morning, and occasionally hazy in the valleys.

Meteorologist's view

Beware of deteriorating conditions through mid to late morning.

Sunrise:
Sunset:

Mountain weather information

Weather

Variable cloud through much of the day, bringing with it a few more spells of drizzle but this unlikely to be too persistent. A gradual improvement is expected through the afternoon as cloud lifts off the hills and it will become dry.

Chance of cloud-free mountain/hill tops at 700m

20% until around midday as areas of cloud linger above around 300-400m, then improving to 80% as most cloud lifts above the summits.

Maximum wind speed expected

Westerly backing southerly 10-15mph.

Temperature

  • At 700m 2C falling to around freezing towards midnight.
  • Valley 5C rising to 7C.
  • Freezing level Above summits, falling to around summit level by midnight.

Visibility

Generally limited to 5 kilometres or less through morning, and often misty but views will open up through afternoon.

Mountain weather information

Saturday 25 January

Sunrise:
Sunset:

Largely overcast and dry with strengthening southerly winds. Cloud likely to shroud the hills, especially later in the day.

Sunday 26 January

Sunrise:
Sunset:

Overnight rain soon clearing to colder, fresher and often sunny conditions. A few scattered snow showers may develop through evening.

Monday 27 January

Sunrise:
Sunset:

Large uncertainty at this stage, but potential for stormy conditions with strong winds and a spell of heavy snow.

Updated at:
Mountain weather explained

The Mourne Mountains are a granite mountain range in County Down in the southeast of Northern Ireland, is an area of outstanding natural beauty, and has been proposed as the first National Park in Northern Ireland.

The Mourne Mountains include the highest mountains in Northern Ireland; the highest of these is Slieve Donard standing at 850 metres at the northeastern edge of the Mournes, overlooking Newcastle and Dundrum Bay. At the summit of Slieve Donard there is a cairn and a small stone tower, which is part of the Mourne Wall, which passes over the mountain’s southern and western shoulders.

The Mourne Wall is a 35 kilometre dry stone wall that crosses fifteen summits, constructed between 1904 and 1922 by the Belfast Water Commissioners to define and enclose the catchment area for the newly constructed Silent Valley Reservoir.v

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