Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

Confidence is high for dry periods with bands of rain and showers passing northeast at times with the frequency of unsettled conditions increasing from Friday.

Sunrise:
Sunset:

This evening forecast

The evening will continue dry with clear periods. Strong southwest summit winds.

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

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

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.

hazard Gales
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
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.

Mountain weather forecast

Cloudy with patchy rain at first otherwise dry with fresh to strong southwest summit winds.

Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Clear night Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Heavy rain
Chance of precipitation
(at 700m)
10% 10% 50% 60% 40% 30% 30% 80%

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 SW
25
SW
26
SW
22
SW
23
SW
21
S
22
S
31
S
37
300m SW
7
SW
8
SW
8
SW
8
SW
9
S
9
S
16
S
19
Valley SW
5
SW
6
S
6
SW
6
S
7
S
8
S
13
S
17
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 34 35 30 32 28 29 43 50
300m 16 18 16 16 15 17 28 33
Valley 15 17 14 17 13 17 26 33

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
900m
1,000m
1,100m
1,100m
1,100m
1,100m
1,100m
1,200m

Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m
-6°
-6°
-6°
-4°
-4°
-3°
-3°
-3°
300m
-1°
-1°
Valley

Additional weather information

Meteorologist's view

With strong winds at height, the chill effect means that sufficient warm clothing will be required.

Weather

Dry with clear spells at first then a band of cloud with patch rain will pass east towards the morning. Any early rain will soon clear as the cloud lifts through the morning. Cloud and rain will spread east late in the evening with sleet or snow on above 700m.

Chance of cloud-free hill tops

60% the best of this in the afternoon.

Low cloud and visibility

Low cloud down to 400-600m at times in the early morning, lifting above the summits from late morning.

Sunrise:
Sunset:

Mountain weather information

Weather

The best of any clear or bright spells will be in the early morning or again from the late afternoon with the main part of the day staying cloudy but dry.

Chance of cloud-free hill tops

30%.

Maximum wind speed expected

Southwest 20-25mph gust 35mph.

Temperature

  • At 700m Plus 4C
  • Valley Plus 1C rising plus 7C
  • Freezing level 600m.

Low cloud and visibility

Broken cloud 400-500m through much of the day with visibility good outwith the cloud.

Mountain weather information

Fri 5 Dec

Sunrise:
Sunset:

Dry morning with cloud increasing and outbreaks of heavy rain from the afternoon. Strong southeast summit winds. Freezing level above the summits.

Sat 6 Dec

Sunrise:
Sunset:

Cloudy with rain. Near gale east summit winds. Freezing level above the summits.

Sun 7 Dec

Sunrise:
Sunset:

Low cloud and rain for most of the day. Strong southeast summit winds. Freezing level above the summits.

Updated at:

Summit specific forecast

Mountain summit forecast map

Loading map…