Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for Sunday. High for mostly dry weather into next week, but low confidence for cloud cover on a daily basis.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
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.
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.
Mountain weather forecast
Cold, cloudy and mainly dry
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
40% | 30% | 20% | 10% | 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 |
N
34
|
N
30
|
N
27
|
N
27
|
N
27
|
N
24
|
| 300m |
N
23
|
N
19
|
N
18
|
N
19
|
N
16
|
N
14
|
| Valley |
N
22
|
N
18
|
N
17
|
N
18
|
N
15
|
N
14
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 47 | 41 | 37 | 38 | 39 | 34 |
| 300m | 38 | 32 | 29 | 31 | 28 | 25 |
| Valley | 38 | 32 | 29 | 31 | 28 | 24 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
2°
|
3°
|
4°
|
5°
|
4°
|
3°
|
| 300m |
4°
|
6°
|
7°
|
8°
|
7°
|
5°
|
| Valley |
6°
|
6°
|
8°
|
9°
|
8°
|
6°
|
| Freezing Level |
1,600m
|
1,700m
|
1,600m
|
1,700m
|
1,700m
|
1,600m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-6°
|
-4°
|
-2°
|
-1°
|
-2°
|
-4°
|
| 300m |
-1°
|
1°
|
3°
|
4°
|
3°
|
1°
|
| Valley |
1°
|
2°
|
4°
|
6°
|
4°
|
2°
|
Additional weather information
Meteorologist's view
Strong winds at height will make for slow progress and significant wind chill.
Weather
The morning will be cloudy with some occasional light rain. Remaining cloudy into the afternoon but it will be dry.
Chance of cloud-free hill tops
30%
Low cloud and visibility
Poor in extensive low cloud down to 500 to 800 metres shrouding many of the tops, although the cloud base will rise somewhat later in the afternoon and early evening.
Mountain weather information
Weather
A ridge of high pressure will bring a dry day with plenty of sunshine. Clouding over with a little light rain developing through the late evening.
Chance of cloud-free hill tops
90%
Maximum wind speed expected
Westerly freshening to 35 mph in the evening
Temperature
- At 700m Plus 4 Celsius
- Valley Minus 1 rising to 13 Celsius
- Freezing level Above the summits
Low cloud and visibility
Very good visibility with great air clarity. Cloud lowering to 700 metres towards midnight.
Mountain weather information
Tue 25 Mar
Sunrise:
Sunset:
Overnight cloud and light rain soon clearing away. Then it will be dry and rather cloudy.
Wed 26 Mar
Sunrise:
Sunset:
Dry and cloudy, chance of some cloud shrouding the tops. Rain in the evening.
Thu 27 Mar
Sunrise:
Sunset:
Dry and partly cloudy.
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.