Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence through the period and for a change to more wintry conditions from Friday.
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.
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
Largely dry and cloudy
| Time | 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% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
NE
14
|
NE
14
|
NE
13
|
NE
15
|
NE
21
|
E
22
|
| 300m |
NE
7
|
NE
7
|
NE
8
|
NE
8
|
NE
10
|
E
11
|
| Valley |
NE
6
|
NE
5
|
NE
7
|
NE
6
|
NE
7
|
E
9
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 20 | 20 | 18 | 21 | 30 | 31 |
| 300m | 14 | 14 | 14 | 15 | 20 | 21 |
| Valley | 13 | 13 | 12 | 13 | 17 | 19 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
1°
|
1°
|
1°
|
1°
|
1°
|
2°
|
| 300m |
3°
|
3°
|
4°
|
3°
|
3°
|
4°
|
| Valley |
4°
|
4°
|
5°
|
5°
|
4°
|
5°
|
| Freezing Level |
700m
|
700m
|
700m
|
700m
|
700m
|
800m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-4°
|
-4°
|
-4°
|
-5°
|
-6°
|
-5°
|
| 300m |
0°
|
0°
|
1°
|
0°
|
-1°
|
0°
|
| Valley |
2°
|
2°
|
3°
|
2°
|
1°
|
2°
|
Additional weather information
Meteorologist's view
Appropriate clothing will be required as it will feel very cold from moderate heights in the fresh breeze.
Weather
A fair amount of cloud throughout, although some breaks in the cloud sheet developing at times. Largely dry but a few spots of light rain possible now and again,
Chance of cloud-free hill tops
30%.
Low cloud and visibility
Poor with extensive cloud down to 500 to 800 metres. Excellent visibility outside of cloud
Mountain weather information
Weather
Dry with variable amounts of cloud.
Chance of cloud-free hill tops
40%
Maximum wind speed expected
East 15-20mph gust 30mph
Temperature
- At 700m Plus 0 Celsius
- Valley Plus 2 rising plus 5 Celsius
- Freezing level 600m
Low cloud and visibility
Poor in areas of cloud down to 500 to 800 metres, but excellent visibility outside of cloud
Mountain weather information
Wed 31 Dec
Sunrise:
Sunset:
Dry with sunny spells becoming hazy during the afternoon. Fresh westerly summit winds, increase severe gale at times. Freezing level 400m.
Thu 1 Jan
Sunrise:
Sunset:
Bright spells interspersed with scattered showers. Near gale northwest summit winds. Freezing level above the summits.
Fri 2 Jan
Sunrise:
Sunset:
Cloudy with frequent wintry showers. Strong southwest summit winds. Freezing level 600m.
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.