Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for changeable, milder conditions, lower for daily details especially on Tuesday.
This evening forecast
The evening will be dry with clear spells before high cloud thickens up towards midnight. Strong westerly winds on the summits with freezing levels around 700m.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Gales
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
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
Early cloud and rain clearing to sunny intervals and showers. Strong to gale force 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) |
10% | 30% | 90% | 30% | 60% | 40% | 30% | 10% |
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 |
SW
26
|
S
25
|
S
30
|
SW
32
|
W
34
|
W
35
|
W
31
|
W
30
|
| 300m |
SW
9
|
S
10
|
SW
15
|
SW
17
|
W
19
|
W
21
|
W
17
|
W
16
|
| Valley |
SW
8
|
S
7
|
S
11
|
SW
14
|
W
15
|
W
17
|
W
14
|
W
13
|
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 | 38 | 34 | 42 | 45 | 48 | 49 | 45 | 43 |
| 300m | 21 | 19 | 27 | 31 | 33 | 36 | 31 | 29 |
| Valley | 21 | 17 | 25 | 29 | 31 | 33 | 28 | 26 |
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°
|
2°
|
4°
|
5°
|
6°
|
5°
|
4°
|
| 300m |
2°
|
3°
|
4°
|
6°
|
7°
|
8°
|
7°
|
6°
|
| Valley |
4°
|
4°
|
5°
|
7°
|
8°
|
9°
|
8°
|
7°
|
| Freezing Level |
800m
|
1,000m
|
1,600m
|
1,300m
|
1,200m
|
1,200m
|
1,200m
|
1,200m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-6°
|
-6°
|
-5°
|
-2°
|
-2°
|
-1°
|
-2°
|
-2°
|
| 300m |
-1°
|
-1°
|
-1°
|
2°
|
3°
|
4°
|
2°
|
2°
|
| Valley |
1°
|
1°
|
1°
|
4°
|
5°
|
6°
|
4°
|
4°
|
Additional weather information
Meteorologist's view
Summit gusts of 50-60mph possible.
Weather
Starting dry in early hours but cloudy, with some light rain, and some snow above 600m at first. Then some briefly heavy rain late in the night and at first in the morning. This soon clearing to leave broken cloud and occasional showers, occasionally heavy. A drier evening but more cloud and rain towards midnight
Chance of cloud-free hill tops
20% at daybreak rising 80-90% during the morning. Falling 20% towards midnight.
Low cloud and visibility
Extensive cloud at 500-750m at first with poor visibility in rain then cloud breaking and mainly above 800m with good visibility, briefly dropping to a few km in any heavier showers that pass through. Low cloud and 450-600m arriving towards midnight.
Mountain weather information
Weather
Cloudy with spells of rain and some hill fog, though a short drier spell in the morning. Clearer late evening.
Chance of cloud-free hill tops
10-20%, rising 90% late evening.
Maximum wind speed expected
West to southwest 40 gusts 55mph.
Temperature
- At 700m Plus 5 rising to Plus 7 Celsius
- Valley Plus 7 rising to Plus 11 Celsius
- Freezing level Above the summits.
Low cloud and visibility
Extensive cloud, bases 450-600m with patches to 300m. Below cloud, visibility occasionally modeate to poor in rain. Late evening low cloud clearing with visibility becoming good.
Mountain weather information
Sun 22 Feb
Sunrise:
Sunset:
A brighter day with sunny intervals and occasional showers and patchy hill fog. Fresh to strong southwesterly winds. Showers perhaps sleety on tops in the evening.
Mon 23 Feb
Sunrise:
Sunset:
Bright with a few showers in the morning. A drier afternoon then cloud and rain arriving towards evening with hill fog. Gale force westerly winds at first easing.
Tue 24 Feb
Sunrise:
Sunset:
Low confidence, but likely cloudy with occasional rain, hill fog and strong southwesterly 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.