Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
Please note we are aware of an issue affecting forecast wind speeds and gusts for higher-elevation sites (typically above 500m) displayed on the Met Office website and app. The winds shown here in our Mountain Area Forecasts are not affected by this. Our teams are actively working to correct the issue and updates will be deployed as soon as possible. High confidence in a continuing southeast airflow throughout this period.
This evening forecast
Cloudy with outbreaks of rain, becoming heavier later. Gale southeast summit winds.
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 gales on the tops ease slowly. Early outbreaks of heavy rain clear by dawn leaving the day cloudy and dry.
| 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) |
90% | 80% | 20% | <05% | <05% | <05% | <05% | <05% |
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 |
E
49
|
SE
42
|
SE
35
|
SE
30
|
SE
30
|
E
27
|
E
26
|
SE
27
|
| 300m |
E
26
|
SE
23
|
SE
16
|
SE
15
|
SE
17
|
E
16
|
E
15
|
SE
16
|
| Valley |
E
21
|
SE
20
|
SE
14
|
SE
13
|
SE
15
|
E
14
|
E
12
|
SE
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 | 69 | 58 | 48 | 43 | 42 | 38 | 37 | 38 |
| 300m | 47 | 39 | 30 | 28 | 30 | 27 | 26 | 27 |
| Valley | 44 | 38 | 29 | 27 | 29 | 26 | 24 | 25 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
3°
|
4°
|
2°
|
3°
|
3°
|
3°
|
2°
|
2°
|
| 300m |
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
| Valley |
6°
|
6°
|
6°
|
6°
|
7°
|
7°
|
6°
|
6°
|
| Freezing Level |
1,000m
|
1,100m
|
900m
|
900m
|
900m
|
1,000m
|
1,000m
|
900m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-6°
|
-4°
|
-5°
|
-4°
|
-4°
|
-4°
|
-4°
|
-5°
|
| 300m |
-1°
|
0°
|
0°
|
1°
|
1°
|
1°
|
0°
|
0°
|
| Valley |
1°
|
2°
|
2°
|
3°
|
3°
|
3°
|
2°
|
2°
|
Additional weather information
Meteorologist's view
The cloud base will remain below the summits lowering the visibility and it will feel very cold in the strong wind.
Weather
Cloudy with outbreaks of rain, persistent and heavy overnight. The rain will clear towards dawn to leave a mostly dry but cloudy day with the occasional bright spell.
Chance of cloud-free hill tops
30%.
Low cloud and visibility
Early extensive cloud with base 400-600m will become broken from dawn. The visibility will fall poor or very poor in cloud and early rain otherwise mostly good below the cloud.
Mountain weather information
Weather
Cloudy with patchy rain becoming persistent and heavy through the afternoon, wintry on the tops.
Chance of cloud-free hill tops
30% becoming below 10% from the afternoon.
Maximum wind speed expected
Southeast 35-40mph gust 50-60mph.
Temperature
- At 700m Plus 1C.
- Valley Plus 3C rising plus 6C.
- Freezing level 900m.
Low cloud and visibility
Extensive cloud 600-800m for much of the day. Good visibility in the morning will fall poor or very poor in cloud and rain.
Mountain weather information
Tue 27 Jan
Sunrise:
Sunset:
Cloudy and windy with outbreaks of heavy rain, snow on the tops. Severe gale southeast summit winds. Freezing level 900m.
Wed 28 Jan
Sunrise:
Sunset:
Rain, wintry on the tops early and late but mostly dry through the day. Gale southeast summit winds. Freezing level 900m.
Thu 29 Jan
Sunrise:
Sunset:
Cloudy with outbreaks of rain, heavy at times. Gale east 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.