Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for changeable weather to continue for the next few days. Low for precipitation detail on a daily basis.
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.
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.
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
Windy with rain spreading north in the afternoon
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
20% | 20% | 60% | 70% | 20% | 10% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
SE
19
|
SE
31
|
E
39
|
E
39
|
E
34
|
E
35
|
| 300m |
E
7
|
E
17
|
E
22
|
E
23
|
E
20
|
E
21
|
| Valley |
SE
5
|
SE
13
|
E
19
|
E
19
|
E
17
|
E
17
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 26 | 44 | 54 | 55 | 48 | 49 |
| 300m | 14 | 30 | 39 | 39 | 35 | 36 |
| Valley | 15 | 28 | 37 | 37 | 33 | 33 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
3°
|
2°
|
2°
|
3°
|
3°
|
3°
|
| 300m |
4°
|
5°
|
5°
|
5°
|
5°
|
5°
|
| Valley |
5°
|
6°
|
6°
|
6°
|
6°
|
6°
|
| Freezing Level |
900m
|
900m
|
1,000m
|
1,000m
|
1,000m
|
1,000m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-3°
|
-5°
|
-6°
|
-5°
|
-4°
|
-5°
|
| 300m |
2°
|
0°
|
0°
|
0°
|
0°
|
0°
|
| Valley |
4°
|
2°
|
2°
|
2°
|
2°
|
2°
|
Additional weather information
Meteorologist's view
Strong winds at height will make for slow progress, significant wind chill and drenching conditions in any rain.
Weather
Dry through the morning. Further spells of rain will spread from the Irish Sea during the afternoon, becoming drier again through the evening.
Chance of cloud-free hill tops
40%, best chance in the morning and then evening
Low cloud and visibility
Patchy cloud around 500 to 700 metres in the morning at first, this mainly across eastern slopes. Then cloud becoming more extensive down to 700 to 900 by late morning onwards, becoming more patchy again by evening.
Mountain weather information
Weather
Mainly dry although with a good deal of cloud shrouding the higher summits. Chance of a passing shower through the day, wintry on the higher tops. Rain spreading north in evening.
Chance of cloud-free hill tops
50%
Maximum wind speed expected
Southeasterly average speeds of 30 mph with gusts to 50 mph on the highest tops
Temperature
- At 700m Plus 3 Celsius
- Valley Plus 5 rising to 7 Celsius
- Freezing level Above summits
Low cloud and visibility
Poor in areas of cloud down to 700 to 900 metres, lowest bases across the east
Mountain weather information
Sun 25 Jan
Sunrise:
Sunset:
Cloudy with outbreaks of rain, some sleet or wet snow on the highest tops, at first. Becoming drier later. Light winds.
Mon 26 Jan
Sunrise:
Sunset:
Dry morning. Becoming cloudy and windy with rain and higher summit snow spreading north during the afternoon.
Tue 27 Jan
Sunrise:
Sunset:
Bright spells and showers, perhaps longer spells of rain.
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.