Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for drier, brighter conditions in high pressure until Saturday evening then bands of rain pushing east Saturday night into Monday with drier conditions returning Tuesday. Lower confidence in rainfall detail.
This evening forecast
The occasional clear spell interspersed with the odd light evening shower, wintry on the hills. Dry from the late evening. Fresh to strong northerly summit winds.
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 with sunny periods becoming cloudy later with rain towards the evening. The northwest summit wind will ease then turn south and strengthen later.
| 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) |
20% | 20% | 00% | 00% | 00% | 00% | 60% | 30% |
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 |
N
28
|
NW
20
|
NW
15
|
W
11
|
SW
12
|
S
19
|
S
27
|
S
25
|
| 300m |
N
13
|
NW
9
|
NW
7
|
NW
5
|
SW
8
|
S
12
|
S
13
|
S
13
|
| Valley |
N
11
|
NW
7
|
NW
6
|
W
4
|
SW
7
|
S
11
|
S
10
|
S
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 | 41 | 29 | 23 | 16 | 16 | 26 | 37 | 34 |
| 300m | 27 | 19 | 15 | 11 | 12 | 19 | 24 | 23 |
| Valley | 26 | 18 | 15 | 10 | 12 | 19 | 22 | 21 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
0°
|
0°
|
-1°
|
0°
|
1°
|
2°
|
2°
|
3°
|
| 300m |
2°
|
1°
|
0°
|
2°
|
4°
|
5°
|
4°
|
5°
|
| Valley |
3°
|
2°
|
1°
|
3°
|
6°
|
6°
|
6°
|
6°
|
| Freezing Level |
500m
|
400m
|
300m
|
300m
|
400m
|
500m
|
800m
|
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 |
-7°
|
-7°
|
-6°
|
-5°
|
-3°
|
-5°
|
-5°
|
-4°
|
| 300m |
-3°
|
-3°
|
-3°
|
-1°
|
2°
|
1°
|
0°
|
1°
|
| Valley |
-1°
|
-2°
|
-2°
|
1°
|
4°
|
3°
|
2°
|
2°
|
Additional weather information
Meteorologist's view
While the morning stays dry and bright it will continue to feel very cold in the strengthening summit wind.
Weather
The morning will stay dry with sunny periods. Cloud will then spread northeast from shortly after midday with outbreaks of rain following towards the evening, turning showery later.
Chance of cloud-free hill tops
95%
Low cloud and visibility
The visibility will be good becoming poor in rain later. The cloud will be patchy with the base above the summits becoming broken from the afternoon and lowering 400-600m from the evening.
Mountain weather information
Weather
Cloudy with outbreaks of rain and showers, some heavy.
Chance of cloud-free hill tops
10%.
Maximum wind speed expected
South 30-35mph gust 45mph.
Temperature
- At 700m Plus 7C.
- Valley Plus 2C rising to plus 11C
- Freezing level Above the summits.
Low cloud and visibility
Extensive cloud with base 400-600m will fall to lower slopes in rain and showers. The visibility will be moderate falling poor or very poor in heavy rain or showers.
Mountain weather information
Mon 2 Mar
Sunrise:
Sunset:
Early outbreaks of locally heavy rain clear in the morning leaving a dry and bright afternoon. Fresh northwest summit winds. Freezing level above the summits lowering to 700m later.
Tue 3 Mar
Sunrise:
Sunset:
A dry day with sunny periods. Moderate to fresh northerly summit winds. Freezing level 800m rising to 1000m later.
Wed 4 Mar
Sunrise:
Sunset:
Cloudy but dry with rain towards the evening. Strong southeast summit winds. Freezing level above the summits.
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.