Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

High confidence in occasionally unsettled weather. Lower confidence for exact rain and cloud details Tuesday and Wednesday.

Sunrise:
Sunset:

This evening forecast

A few showers at first, these wintry above 600-700m. Otherwise dry with increasingly clear skies but feeling cold. 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 Strong Sunlight
Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.

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 Thunderstorms
Lightning is a significant mountain hazard which can result in serious injury or death. Mountain terrain often leaves one highly exposed to lightning strikes. Hail may give unpleasant conditions with torrential rain and localised flash flooding also possible, mainly in Summer months.

Mountain weather forecast

Dry, sunny morning. Cloudier afternoon, some showers.

Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Clear night Clear night Sunny intervals Sunny intervals Cloudy Sunny intervals Heavy shower (day) Partly cloudy (night)
Chance of precipitation
(at 700m)
00% 00% 00% <05% 20% 30% 50% 20%

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
17
SW
16
SW
15
S
13
S
15
S
15
S
11
S
11
300m W
6
W
6
SW
4
S
7
S
10
S
10
S
6
S
4
Valley W
5
SW
4
S
3
S
6
S
9
S
10
S
6
SE
4
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 26 23 21 18 21 22 15 16
300m 15 13 10 12 16 18 11 9
Valley 15 12 9 11 16 17 10 8

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
600m
600m
700m
700m
800m
900m
900m
900m

Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m
-4°
-5°
-5°
-3°
-1°
-1°
-1°
-2°
300m
-1°
-2°
-2°
Valley
-1°

Additional weather information

Meteorologist's view

The sun increasingly powerful at this time of year so suitable UV protection may be needed. Feeling chilly at height despite the sun, so suitable clothing is advised.

Weather

Dry with clear skies overnight leading to a patchy frost in places. Dry with sunny spells at first in the morning, but cloud building. Cloudier in the afternoon with a few showers, small chance of hail and lightning. Becoming clear again through the evening as showers fade away. Feeling chilly at height

Chance of cloud-free hill tops

Generally 100%, falling to 80% in afternoon.

Low cloud and visibility

Clear skies and good visibilities to start the day. Cloud building but staying above summits outside of showers. Visibilities dropping rapidly and temporarily poor and cloud down to around summit height as any showers pass through.

Sunrise:
Sunset:

Mountain weather information

Weather

Dry in the early morning, but rain and widespread low cloud spreading north, persisting through the day. The rain will be heavy and persistent at times.

Chance of cloud-free hill tops

90% before dawn. Falling to no chance by midday.

Maximum wind speed expected

South to southeast 30-40mph, gusting 50mph at times.

Temperature

  • At 700m Plus 1C rising to plus 5C.
  • Valley Plus 5C rising to plus 12C by day.
  • Freezing level 1000m rising above 2000m by day.

Low cloud and visibility

Clear summits and good visibilities before dawn. Widespread cloud down to even the lowest elevations will spread north through the morning with associated poor visibilities in hill fog and outbreaks of rain.

Mountain weather information

Wed 15 Apr

Sunrise:
Sunset:

Rain, low cloud clearing in morning. Then sunny spells and scattered showers, heavy at times. Strong south to southwest winds. Freezing level above summits.

Thu 16 Apr

Sunrise:
Sunset:

Sunny spells and scattered showers. Freezing level above summits. Fresh to strong south to southwest winds.

Fri 17 Apr

Sunrise:
Sunset:

Cloudy with rain or showers. Strong southerly winds. Freezing level above summits.

Updated at:

Summit specific forecast

Mountain summit forecast map

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