Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

High confidence on the cloudy conditions on Tuesday followed by much brighter, colder but mainly dry conditions from Wednesday.

Sunrise:
Sunset:

This evening forecast

A cloudy evening with hill fog. Fresh summit winds. Freezing level above summits.

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 Severe Chill Effect
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.

Mountain weather forecast

A cloudy day with hill fog and spots of light rain or drizzle.

Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Fog Fog Fog Fog Drizzle Cloudy Cloudy Cloudy
Chance of precipitation
(at 700m)
30% 30% 30% 30% 30% 10% 10% 10%

Wind direction and speed (mph)
Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m E
13
E
15
E
15
E
14
E
13
NE
12
NE
15
NE
15
300m E
7
E
10
E
10
E
9
E
8
NE
7
NE
8
NE
8
Valley E
5
E
8
E
8
E
7
E
7
NE
6
NE
6
NE
6
Wind gust (mph)
Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m 19 22 21 19 19 18 21 21
300m 13 17 16 14 14 13 14 14
Valley 12 15 15 13 13 11 12 12

Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m
300m
Valley
Freezing Level
1,600m
1,700m
1,800m
1,800m
1,800m
1,900m
1,900m
1,800m

Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m
-1°
300m
Valley

Additional weather information

Meteorologist's view

Note the increased wind chill in damp conditions. Challenging navigation at height in poor visbility.

Weather

A cloudy day with some hill fog and a few spots of light rain or drizzle possible, especially during the morning.

Chance of cloud-free hill tops

10% rising to 30% in the afternoon.

Low cloud and visibility

Extensive cloud bases 300-400m in the morning, lifting to around 500m and perhaps breaking up slightly in the afternoon. Visiblity will be a few kilometres beneath cloud bases, deteriorating in any drizzle.

Sunrise:
Sunset:

Mountain weather information

Weather

A few patches of hill fog in the morning, otherwise a brighter but colder day than Tuesday. Remaining generally dry with some sunny spells. Notable wind chill at height.

Chance of cloud-free hill tops

40% at first rising to 80%.

Maximum wind speed expected

Gusting 20-25mph on summits and ridges.

Temperature

  • At 700m Plus 3 decreasing 0 Celsius.
  • Valley Plus 6 Celsius.
  • Freezing level Above summits at first, falling to 700m.

Low cloud and visibility

Patches of cloud with bases around 600m on easterly upslopes in the morning, otherwise main cloud bases will be above summits.

Mountain weather information

Thu 25 Dec

Sunrise:
Sunset:

Another rather cold but dry and bright day with sunny spells. Fresh to strong winds at height with significant wind chill. Freezing level 600m.

Fri 26 Dec

Sunrise:
Sunset:

Remaining cold and bright with variable amounts of cloud. Moderate to fresh summit winds. Freezing level 700m

Sat 27 Dec

Sunrise:
Sunset:

Dry and bright with patches of cloud. Moderate to fresh summit winds. Freezing level 800m.

Updated at:

Summit specific forecast

Mountain summit forecast map

Loading map…