Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

High confidence for unsettled weather through the period.

Sunrise:
Sunset:

This evening forecast

Staying dry with clear summits and good visibilities. Feeling bitterly cold with southwest winds 25-35mph.

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

Dry, sunny morning. Cloudy, windy, rain and summit snow later.

Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Clear night Clear night Partly cloudy (night) Sunny intervals Cloudy Heavy rain Heavy rain Heavy shower (night)
Chance of precipitation
(at 700m)
<05% <05% <05% <05% 10% >95% >95% 50%

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 W
22
SW
22
SW
25
SW
30
S
27
S
35
S
38
SW
27
300m W
7
W
9
SW
10
SW
10
S
12
S
18
S
21
SW
15
Valley W
6
W
8
SW
9
SW
9
S
9
S
15
S
17
SW
12
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 31 30 36 41 36 48 52 37
300m 16 18 21 22 22 32 36 26
Valley 18 18 22 23 20 31 34 24

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
500m
500m
500m
400m
600m
700m
900m
1,100m

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°
-7°
-8°
-7°
-6°
-7°
-4°
300m
-2°
-3°
-4°
-3°
-1°
-1°
-2°
Valley
-1°
-2°
-2°
-2°

Additional weather information

Meteorologist's view

Gusts of 40-50mph much of the day will give difficult walking conditions with a risk of being blown off balance, and note the strengthening winds later with a chance of 50-60mph winds over the highest summits. Navigation could be challenging with energy output significantly increased when walking into the wind. Keep up to date with the latest avalanche forecast from the Scottish Avalanche Information Service (SAIS).

Weather

Clear and then bright or sunny spells throughout the morning. Gradually clouding over in the afternoon as a more organised band of rain spreads east, falling as snow above 700-800m, accompanied by strengthening winds. Slowly improving again in late evening.

Chance of cloud-free hill tops

90% or higher in morning. Falling widely 20% or less in afternoon.

Low cloud and visibility

Good visibilities and clear summits through the morning. Cloud becomes widespread down to 300-500m from the west through the afternoon and visibilities falling poor in hill fog and rain or summit snow.

Sunrise:
Sunset:

Mountain weather information

Weather

Dry with bright spells. Variable patches of low cloud in the morning and again forming in the evening. Strong southwest winds easing later.

Chance of cloud-free hill tops

90% or higher.

Maximum wind speed expected

Southwest 25-35mph in the morning.

Temperature

  • At 700m Minus 3C to plus 1C.
  • Valley Zero rising to plus 6C.
  • Freezing level 800m falling to 600m.

Low cloud and visibility

Good visibilities and clear summits, but a few patches of cloud between around 200-500m in the morning, and fog patches forming in valleys through the evening.

Mountain weather information

Fri 16 Jan

Sunrise:
Sunset:

Dry with variable cloud and some bright spells in the morning. Scattered showers later, heavy at times.

Sat 17 Jan

Sunrise:
Sunset:

Bright spells and variable cloud, chance of a few showers. Freezing level around 1000m. Light winds.

Sun 18 Jan

Sunrise:
Sunset:

Bright spells and variable cloud, chance of a few showers. Freezing level around 1000-1200m. Moderate southerly winds.

Updated at:

Summit specific forecast

Mountain summit forecast map

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