Mountain weather

Mourne Mountains

There may be weather warnings in force for the UK

Mourne Mountains Mountain weather forecast table

Confidence

High for showery conditions on Monday and Tuesday, and for occasionally unsettled conditions thereafter.

This evening forecast

Sunrise:
Sunset:

Windy with the chance of a few passing showers.

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.

hazard Poor visibility
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.
hazard Strong sunlight
Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.

Mountain weather forecast

Bright and breezy with a few showers.

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

Some bright or sunny intervals and the chance of a few passing showers, these most frequent in the afternoon. Some reasonable drier interludes expected too.

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

90%, some patchy cloud around 700 metres at first otherwise cloud generally confined to the highest tops.

Visibility

Generally very good with great air clarity outside of cloud and showers.

Meteorologist's view

Notable wind chill in strong winds at height.

Sunrise:
Sunset:

Mountain weather information

Weather

Mostly dry and bright in the morning. Turning cloudy in the afternoon with showery rain spreading northeast.

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

Most summits clear for much of the day, some patchy cloud around 700 metres.

Maximum wind speed expected

Westerly 20 mph

Temperature

  • At 700m Plus 9 Celsius
  • Valley Plus 8 rising to 17 Celsius
  • Freezing level Above summits

Visibility

Very good with great air clarity outside of showers.

Mountain weather information

Wednesday 21 August

Sunrise:
Sunset:

Wind and rain extending east for a few hours in the afternoon, then drier and clearer by evening.

Thursday 22 August

Sunrise:
Sunset:

Mainly dry, perhaps some light rain rain for a time later.

Friday 23 August

Sunrise:
Sunset:

Dry with some brightness. Light winds.

Updated at:

Summit specific forecast

Mountain summit forecast map

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