Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

High for Sunday. High for mostly dry weather into next week, but low confidence for cloud cover on a daily basis.

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 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.

Mountain weather forecast

Cold, cloudy and mainly dry

Time 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Overcast Overcast Cloudy Cloudy Partly cloudy (night) Partly cloudy (night)
Chance of precipitation
(at 700m)
40% 30% 20% 10% 00% 00%

Wind direction and speed (mph)
Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
600m N
34
N
30
N
27
N
27
N
27
N
24
300m N
23
N
19
N
18
N
19
N
16
N
14
Valley N
22
N
18
N
17
N
18
N
15
N
14
Wind gust (mph)
Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
600m 47 41 37 38 39 34
300m 38 32 29 31 28 25
Valley 38 32 29 31 28 24

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

Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
600m
-6°
-4°
-2°
-1°
-2°
-4°
300m
-1°
Valley

Additional weather information

Meteorologist's view

Strong winds at height will make for slow progress and significant wind chill.

Weather

The morning will be cloudy with some occasional light rain. Remaining cloudy into the afternoon but it will be dry.

Chance of cloud-free hill tops

30%

Low cloud and visibility

Poor in extensive low cloud down to 500 to 800 metres shrouding many of the tops, although the cloud base will rise somewhat later in the afternoon and early evening.

Sunrise:
Sunset:

Mountain weather information

Weather

A ridge of high pressure will bring a dry day with plenty of sunshine. Clouding over with a little light rain developing through the late evening.

Chance of cloud-free hill tops

90%

Maximum wind speed expected

Westerly freshening to 35 mph in the evening

Temperature

  • At 700m Plus 4 Celsius
  • Valley Minus 1 rising to 13 Celsius
  • Freezing level Above the summits

Low cloud and visibility

Very good visibility with great air clarity. Cloud lowering to 700 metres towards midnight.

Mountain weather information

Tue 25 Mar

Sunrise:
Sunset:

Overnight cloud and light rain soon clearing away. Then it will be dry and rather cloudy.

Wed 26 Mar

Sunrise:
Sunset:

Dry and cloudy, chance of some cloud shrouding the tops. Rain in the evening.

Thu 27 Mar

Sunrise:
Sunset:

Dry and partly cloudy.

Updated at:

Summit specific forecast

Mountain summit forecast map

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