Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for continuing unsettled pattern with some persistent and heavy rain at times from Saturday. Low confidence for the synoptic situation from Monday but more settled conditions are likely.
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
Early fog patches otherwise dry and bright. Summit winds will strengthen to near gale southwest by the afternoon.
| 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% | <05% | <05% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
SW
18
|
SW
23
|
SW
26
|
SW
24
|
SW
29
|
SW
30
|
| 300m |
SW
4
|
SW
4
|
SW
10
|
SW
10
|
SW
13
|
SW
11
|
| Valley |
SW
2
|
SE
2
|
SW
9
|
SW
10
|
SW
12
|
SW
10
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 23 | 31 | 35 | 34 | 41 | 41 |
| 300m | 10 | 13 | 20 | 21 | 25 | 23 |
| Valley | 9 | 11 | 22 | 24 | 26 | 25 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
4°
|
3°
|
2°
|
3°
|
3°
|
2°
|
| 300m |
3°
|
3°
|
4°
|
5°
|
4°
|
4°
|
| Valley |
3°
|
2°
|
6°
|
6°
|
5°
|
5°
|
| Freezing Level |
900m
|
900m
|
1,000m
|
1,000m
|
1,000m
|
900m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-2°
|
-4°
|
-4°
|
-4°
|
-4°
|
-5°
|
| 300m |
2°
|
1°
|
1°
|
2°
|
0°
|
0°
|
| Valley |
1°
|
0°
|
3°
|
3°
|
2°
|
1°
|
Additional weather information
Meteorologist's view
Be aware that the wind will be strengthening to lower levels through the afternoon, making walking difficult on exposed ridges and peaks. Despite sunny periods it will feel bitterly cold in the strong wind.
Weather
Mist or fog patches will develop in the early morning but will burn off after sunrise. The day will stay dry with bright or sunny spells throughout.
Chance of cloud-free hill tops
80%.
Low cloud and visibility
After any early fog lifts and breaks cloud will be patchy 400-600m for the day. The visibility will be very poor in early fog otherwise good.
Mountain weather information
Weather
The morning will begin dry with bright spells but cloud will move in from the west with outbreaks of rain following by mid-afternoon. The rain will be persistent and heavy at times.
Chance of cloud-free hill tops
30%
Maximum wind speed expected
Southwest 55-65mph gust 75-85mph.
Temperature
- At 700m Plus 5C
- Valley Plus 3C rising plus 12C
- Freezing level Above the summits.
Low cloud and visibility
Patchy early cloud will be replaced by extensive cloud 400-600m with the visibility falling very poor in heavy rain.
Mountain weather information
Sun 14 Dec
Sunrise:
Sunset:
Outbreaks of rain, prolonged and heavy. Gale southwest summit winds. Freezing level above the summits lowering 800m later.
Mon 15 Dec
Sunrise:
Sunset:
Dry spells between showers or longer periods of rain. Fresh northeast becoming gale south summit winds. Freezing level above the summits.
Tue 16 Dec
Sunrise:
Sunset:
Mainly dry with bright or sunny spells. Gale west summit winds. Freezing level 700m.
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.