Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence in largely dry and settled conditions with high pressure dominating until Tuesday, but lower confidence in cloud amounts.
This evening forecast
Dry with clear spells and variable amounts of cloud around 700-900m. Feeling bitterly cold at height with a severe wind chill brought on by 30-40mph easterly winds, gusting 40-50mph at times.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
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
Dry and mostly bright. Cold. Fresh to strong winds.
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
|
|
Chance of precipitation (at 700m) |
00% | 00% | 00% | 00% | 00% | 00% | 00% | 00% |
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 |
E
30
|
E
27
|
E
22
|
E
21
|
E
22
|
NE
22
|
NE
23
|
E
21
|
| 300m |
E
17
|
E
16
|
E
12
|
E
11
|
E
14
|
NE
13
|
NE
13
|
E
12
|
| Valley |
E
13
|
E
12
|
E
9
|
E
8
|
E
11
|
NE
9
|
NE
10
|
NE
9
|
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 | 42 | 39 | 32 | 30 | 31 | 31 | 34 | 31 |
| 300m | 30 | 28 | 23 | 21 | 24 | 23 | 24 | 22 |
| Valley | 27 | 25 | 20 | 19 | 21 | 19 | 20 | 19 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
1°
|
1°
|
1°
|
0°
|
2°
|
2°
|
1°
|
1°
|
| 300m |
3°
|
3°
|
2°
|
2°
|
4°
|
4°
|
3°
|
3°
|
| Valley |
4°
|
3°
|
3°
|
3°
|
6°
|
5°
|
4°
|
4°
|
| Freezing Level |
600m
|
600m
|
600m
|
600m
|
700m
|
700m
|
700m
|
700m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-7°
|
-6°
|
-6°
|
-6°
|
-4°
|
-5°
|
-5°
|
-5°
|
| 300m |
-2°
|
-2°
|
-2°
|
-2°
|
0°
|
0°
|
-1°
|
-1°
|
| Valley |
0°
|
0°
|
0°
|
-1°
|
2°
|
2°
|
0°
|
0°
|
Additional weather information
Meteorologist's view
Feeling bitterly cold so suitable clothing is required. Windy conditions on and to the lee of the summits will make for fairly arduous walking on exposed terrain with buffeting of clothing. Balance may be affected at times
Weather
It will stay dry throughout the day, but feeling cold with fresh to strong east to northeast winds. Areas of cloud in the early morning, but otherwise summits largely clear with only temporary patches of cloud.
Chance of cloud-free hill tops
60% early morning rising to 80% or higher by afternoon.
Low cloud and visibility
Clear spells and some areas of cloud around 600-800m in the early morning. These areas of cloud becoming more broken and temporary through the day.
Mountain weather information
Weather
A dry and bright morning. Becoming cloudier through the afternoon with freshening winds. Feeling chilly.
Chance of cloud-free hill tops
80% or higher at first, falling to 60% later
Maximum wind speed expected
East to northeast 25-35mph, gusting 40-50mph.
Temperature
- At 700m Minus 2C to plus 2C.
- Valley Plus 2C rising to plus 7C.
- Freezing level 800-1000m
Low cloud and visibility
largely clear summits with only temporary patches of cloud around 400-600m during much of the day. Cloud becoming more extensive through the afternoon and evening.
Mountain weather information
Sun 28 Dec
Sunrise:
Sunset:
Largely cloudy but dry. A few bright spells at times. Chilly. Moderate to fresh easterly winds. Freezing level around 800m.
Mon 29 Dec
Sunrise:
Sunset:
Cloudy start. Brighter spells developing later. Chance of the odd light shower. Freezing level around 600-800m. Moderate to fresh northerly winds.
Tue 30 Dec
Sunrise:
Sunset:
Variable cloud and bright spells. Chance of the odd light shower. Freezing level around 800-1000m. Light to moderate northerly winds.
Updated at:
Summit specific forecast
Mountain summit forecast map
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Key
Mountain summits
Other points of interest
Cluster of multiple stations
The Mourne Mountains are a granite mountain range in County Down in the southeast of Northern Ireland, is an area of outstanding natural beauty, and has been proposed as the first National Park in Northern Ireland.