Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

High confidence in the unsettled conditions continuing the rest of this week, but some uncertainty on the extent of rainfall expected this weekend.

Sunrise:
Sunset:

This evening forecast

Showery outbreaks of rain clearing leaving mainly dry conditions with lengthy clear periods.

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.

Mountain weather forecast

Mainly dry with sunny spells, especially in the afternoon. Very windy with significant wind chill.

Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Light shower (night) Light shower (night) Light shower (night) Sunny intervals Sunny intervals Sunny intervals Partly cloudy (night) Partly cloudy (night)
Chance of precipitation
(at 700m)
30% 30% 30% 20% 10% <05% <05% <05%

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
34
SW
36
SW
37
SW
35
SW
32
SW
26
SW
25
SW
25
300m SW
19
SW
20
SW
21
SW
20
SW
18
SW
15
SW
14
SW
13
Valley SW
15
SW
17
SW
17
SW
17
SW
16
SW
13
SW
11
SW
11
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 47 50 52 50 45 37 35 35
300m 32 35 36 35 32 26 24 23
Valley 30 33 34 33 31 25 23 22

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
700m
1,000m
1,100m
1,100m
1,000m
1,000m
1,000m
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
-8°
-6°
-5°
-5°
-4°
-3°
-4°
-4°
300m
-3°
-2°
-1°
Valley
-1°

Additional weather information

Meteorologist's view

Gusts to around 50mph in the morning at height will give difficult walking conditions with a significant risk of being blown off balance. Also note the significant wind chill.

Weather

A bright and very blusterly day. Mainly dry but a few showers possible early morning then the best of the sunny spells in the afternoon. Gales at height but easing slightly in the afternoon.

Chance of cloud-free hill tops

70% rising to 90% in the afternoon.

Low cloud and visibility

Mainly clear of low cloud and with generally good visibility. Perhaps a few patches of cloud around summits during the morning in association with showers.

Sunrise:
Sunset:

Mountain weather information

Weather

Mainly cloudy with some patchy hill fog and an increasing risk of showers or spells of rain into the afternoon. Gales at height.

Chance of cloud-free hill tops

60% decreasing to 30% in the afternoon.

Maximum wind speed expected

Gusting 45-55mph.

Temperature

  • At 700m Plus 5 Celsius.
  • Valley Plus 8 Celsius rising plus 10 Celsius.
  • Freezing level Well above summits.

Low cloud and visibility

Patchy hill fog on upslopes in the morning above 600m, cloud thickening and perhaps lowering in outbreaks of rain through the day. Visibility will be generally good below cloud bases, but deteriorating to a couple of kilometres in rain or showers.

Mountain weather information

Sun 21 Dec

Sunrise:
Sunset:

Cloudy with outbreaks of rain, possibly heavy at times with strong summit winds. Freezing level above summits.

Mon 22 Dec

Sunrise:
Sunset:

Another rather cloudy day with spells of rain, but some drier, brighter conditions likely developing. Moderate to fresh summit winds and freezing level above summits.

Tue 23 Dec

Sunrise:
Sunset:

Variable amounts of cloud and generally dry. Moderate to fresh summit winds. Freezing level above summits.

Updated at:

Summit specific forecast

Mountain summit forecast map

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