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Mourne Mountains - Mountain weather forecast

Weather warnings

Warnings affecting Mourne Mountains over the next 5 days

Confidence

High for the changeable weather pattern during next week. Lower confidence on day to day detail.

  • This evening
  • Monday
  • Tuesday
  • Further outlook

Sunday 19 August 2018

Sunset: 20:46
Moon phase: First quarter

Mainly dry and rather cloudy with clouds covering the tops. Also a few light drizzly showers.

Monday 20 August 2018

Weather hazards

Poor visibility Medium likelihood Hide detail

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.

Learn more about poor visibility

Strong sunlight Low likelihood Show detail

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.

Learn more about strong sunlight

Headline

Mainly dry and rather cloudy. Extensive hill fog.

Weather

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather at 700m Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Partly cloudy night
Chance of precipitation at 700m 20% 20% 20% 20% 20% 20% 10% 10%

Wind speed and direction

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
600m S 6 8 S 8 10 SE 6 8 SE 5 7 SE 5 7 SE 6 9 SE 6 9 SE 7 10
300m S 3 5 N 3 5 NE 3 5 E 4 6 E 4 7 SE 5 8 SE 5 7 SE 4 6
Valley S 2 5 S 2 5 NE 2 5 E 3 6 E 4 7 SE 4 8 SE 4 6 SE 3 6

Temperature

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
600m 11 ° 12 ° 11 ° 12 ° 12 ° 13 ° 13 ° 12 °
300m 13 ° 12 ° 13 ° 13 ° 14 ° 15 ° 14 ° 13 °
Valley 13 ° 13 ° 13 ° 14 ° 15 ° 16 ° 15 ° 14 °

Feels like temperature

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
600m 10 ° 10 ° 10 ° 11 ° 12 ° 13 ° 12 ° 11 °
300m 12 ° 12 ° 12 ° 13 ° 14 ° 14 ° 14 ° 13 °
Valley 13 ° 13 ° 13 ° 14 ° 15 ° 16 ° 15 ° 14 °

Freezing level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Freezing level i 3,100 m 3,000 m 3,000 m 2,900 m 2,800 m 2,800 m 2,800 m 2,800 m
Sunrise: 06:10
Sunset: 20:44
Moon phase: First quarter

Weather

Mainly dry and cloudy overnight with a few light showers. Monday will stay mostly cloudy with just a few brighter interludes especially during the afternoon. There will also be a few light drizzly showers.

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

30% during morning improving 60% during afternoon. Extensive cloud cover developing around 600 to 700m, lifting above some of the tops during the afternoon.

Visibility

Moderate or poor during the morning occasionally good in the afternoon especially in more sheltered eastern parts.

Meteorologist's view

Nothing to add.

Tuesday 21 August 2018

Sunrise: 06:11
Sunset: 20:42
Moon phase: First quarter

Weather

Mainly dry and mostly cloudy day with just the odd patch of drizzle. Fog will be extensive across the tops. More persistent and heavier rain will edge in during the evening.

Maximum wind speed expected

Strengthening southwesterly winds across the tops, average speeds of 10 to 15mph during the morning increasing 30 to 40mph during afternoon and early evening.

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

20% mainly towards east of area. Extensive cloud cover around 600 to 700m with some patches lower down.

Temperature

  • At 700m Plus 11 Celsius.
  • Valley Plus 12 Celsius rising to 19 Celsius.
  • Freezing level Above the summits.

Visibility

Hazy with patches of moderate or poor visibility. Occasional good visibility towards sheltered eastern areas.

Wednesday 22 August 2018

Sunrise: 06:13
Sunset: 20:40
Moon phase: Waxing gibbous

Cloudy with rain and extensive hill fog during the mornng. Drier, brighter weather developing during the afternoon. Strong northwesterly winds on the tops easing during the day.

Thursday 23 August 2018

Sunrise: 06:15
Sunset: 20:37
Moon phase: Waxing gibbous

A band of rain crossing from the west during the day followed by sunshine and blustery showers. Becoming windy on the summits with westerly gales developing later.

Friday 24 August 2018

Sunrise: 06:17
Sunset: 20:35
Moon phase: Waxing gibbous

Sunshine and blustery showers, some heavy. Windy on the tops with westerly gales.

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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.

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