Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

High for changeable weather to continue for the next few days

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

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

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 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 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

Isolated wintry showers in the morning, dry in the afternoon

Time 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Overcast
Chance of precipitation
(at 700m)
30% 20% 20% 10% 10% 30%

Wind direction and speed (mph)
Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
600m NW
43
NW
37
NW
33
NW
30
W
26
W
27
300m NW
20
NW
21
NW
20
NW
17
W
13
W
10
Valley NW
14
NW
16
NW
16
NW
14
NW
9
W
8
Wind gust (mph)
Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
600m 60 51 47 41 36 37
300m 38 36 34 30 24 21
Valley 35 34 33 30 22 20

Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
600m
300m
Valley
10°
Freezing Level
700m
800m
900m
1,100m
2,100m
2,000m

Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
600m
-7°
-5°
-2°
-1°
-1°
300m
-2°
Valley

Additional weather information

Meteorologist's view

Strong to gale summit winds for most of the day will make for slow progress and significant wind chill.

Weather

Clear or sunny intervals and occasional, mostly light showers in the morning, these wintry on the tops. The afternoon will be dry and cloudy. Cloudy in the evening with occasional light rain spreading from the west.

Chance of cloud-free hill tops

80%

Low cloud and visibility

Patchy cloud down to 900 metres at times shrouding the higher summits, otherwise excellent visibility with great air clarity for much of the day. Low cloud will spread from the west in the evening and lower to 700 metres.

Sunrise:
Sunset:

Mountain weather information

Weather

A little light rain in the early hours. Otherwise it will be a dry day with variable amounts of cloud and a few bright intervals.

Chance of cloud-free hill tops

60%, best chance in the afternoon

Maximum wind speed expected

Southwesterly 20 mph

Temperature

  • At 700m Plus 6 Celsius
  • Valley Plus 8 rising to 14 Celsius
  • Freezing level Above the summits

Low cloud and visibility

Poor in cloud down to 400 to 700 metres, this breaking and lifting off the summits by late morning. Good visibility with patchy cloud around 900 metres in the afternoon.

Mountain weather information

Wed 1 Apr

Sunrise:
Sunset:

Rain will spread southeast during the morning, turning drier and colder from the northwest in the afternoon. Freezing level falling to 800 metres during the afternoon.

Thu 2 Apr

Sunrise:
Sunset:

After a dry morning rain, sleet and summit snow will spread east in the afternoon. Drier in the evening. Freezing level 400 to 800 metres.

Fri 3 Apr

Sunrise:
Sunset:

Occasional rain or summit snow at first then dry for a time. Rain likely to spread east later. Freezing level 400 metres rising above summits later.

Updated at:

Summit specific forecast

Mountain summit forecast map

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