Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence.
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
Dry but cloudy with a strong easterly summit wind easing and turning northeast later.
| 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 |
E
21
|
E
20
|
E
17
|
E
11
|
NE
12
|
NE
13
|
| 300m |
E
11
|
E
10
|
E
11
|
E
7
|
NE
6
|
NE
6
|
| Valley |
E
8
|
E
8
|
E
9
|
E
5
|
NE
4
|
NE
5
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 30 | 29 | 25 | 16 | 17 | 19 |
| 300m | 20 | 20 | 18 | 12 | 12 | 13 |
| Valley | 18 | 18 | 17 | 11 | 10 | 12 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
2°
|
2°
|
2°
|
2°
|
2°
|
1°
|
| 300m |
5°
|
4°
|
5°
|
4°
|
4°
|
3°
|
| Valley |
6°
|
5°
|
6°
|
6°
|
5°
|
4°
|
| Freezing Level |
900m
|
800m
|
800m
|
800m
|
800m
|
800m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-4°
|
-4°
|
-4°
|
-3°
|
-3°
|
-4°
|
| 300m |
1°
|
0°
|
1°
|
2°
|
1°
|
1°
|
| Valley |
3°
|
2°
|
3°
|
4°
|
3°
|
2°
|
Additional weather information
Meteorologist's view
It will feel very cold in the strong winds at height.
Weather
The day will stay dry but cloudy with cloud remaining low through the day.
Chance of cloud-free hill tops
30%
Low cloud and visibility
The visibility will be poor in cloud with base 400-600m much of the time.
Mountain weather information
Weather
A frosty start to a cold but dry day with sunny periods.
Chance of cloud-free hill tops
60%.
Maximum wind speed expected
Northeast 15-20mph gust 30mph.
Temperature
- At 700m 0C to minus 1C.
- Valley Minus 2C rising plus 6C.
- Freezing level 700m.
Low cloud and visibility
Patchy cloud with base 800-900m and good visibility through the day.
Mountain weather information
Tue 30 Dec
Sunrise:
Sunset:
Dry and cold with patchy cloud. Light northeast summit winds.
Wed 31 Dec
Sunrise:
Sunset:
Continuing dry and cold with variable cloud. Moderate west summit winds.
Thu 1 Jan
Sunrise:
Sunset:
Cloudy, dry in the morning with showery rain spreading south in the afternoon. Gale northwest summit 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.