Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
Generally high confidence in overall setup and for unsettled conditions to continue before colder air moves in from the north later in the week. Low confidence for exact timing of colder air becoming established.
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.
Heavy Persistent Rain
Heavy and persistent rain can lead to drenched clothing and footwear with waterproofs often becoming soaked through, especially if accompanied by strong winds. This can lead to significant loss of body heat and an increased likelihood of hypothermia. Terrain may turn increasingly boggy underfoot while streams can flood and become impassable. There may also be a risk of flooding in valleys or glens. If there is snow cover, a heightened avalanche hazard is possible and avalanche reports should be consulted where available.
Mountain weather forecast
Dry and cloudy morning, rain spreading north later. Feeling cold.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
30% | 70% | 90% | 90% | 90% | 40% |
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
15
|
SE
16
|
SE
19
|
SE
20
|
E
23
|
SE
24
|
| 300m |
SE
7
|
SE
9
|
SE
11
|
SE
11
|
E
12
|
SE
13
|
| Valley |
SE
6
|
SE
7
|
SE
10
|
SE
10
|
E
10
|
SE
11
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 21 | 22 | 26 | 27 | 33 | 34 |
| 300m | 13 | 15 | 18 | 19 | 22 | 23 |
| Valley | 14 | 15 | 18 | 18 | 22 | 22 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
4°
|
4°
|
4°
|
4°
|
4°
|
4°
|
| 300m |
5°
|
6°
|
6°
|
6°
|
6°
|
6°
|
| Valley |
6°
|
6°
|
7°
|
7°
|
7°
|
7°
|
| Freezing Level |
1,000m
|
1,100m
|
1,200m
|
1,100m
|
1,200m
|
1,300m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-1°
|
-1°
|
-1°
|
-2°
|
-2°
|
-2°
|
| 300m |
3°
|
3°
|
3°
|
2°
|
2°
|
2°
|
| Valley |
4°
|
4°
|
4°
|
4°
|
4°
|
4°
|
Additional weather information
Meteorologist's view
Breezy with strong winds possible near summits, care should be taken on higher routes. Tricky navigation in low cloud and poor visibility.
Weather
Fog lifting after dawn to leave cloudy and dry conditions for a short time. Rain, heavy at times, spreading northwards from late morning, drier later in the evening. Feeling cold.
Chance of cloud-free hill tops
60% in the morning, falling 20% later.
Low cloud and visibility
Valley fog in early morning will give very poor visibility. Occasional shallow cloud in the morning with base 400-600m with tops cloud free at times. Cloud thickening in the afternoon with cloud free tops becoming less likely. Visibility poor or very poor in cloud and rain.
Mountain weather information
Weather
A cloudy and largely dry morning. Outbreaks of rain developing in the afternoon. Moderate southeasterly winds and feeling cold.
Chance of cloud-free hill tops
Little chance.
Maximum wind speed expected
Southeasterly 15-20mph gusting 25-30mph.
Temperature
- At 700m Plus 4 Celsius.
- Valley Plus 7 Celsius.
- Freezing level Above summits.
Low cloud and visibility
Low cloud with base 300-500m throughout the day, perhaps falling to lower slopes in rain. Visibility good outside of cloud, falling to poor or very poor in cloud and rain.
Mountain weather information
Wed 11 Feb
Sunrise:
Sunset:
Cloudy with heavy rain. Moderate southerly winds. Freezing level above summits.
Thu 12 Feb
Sunrise:
Sunset:
Cloudy with heavy rain, becoming drier later. Fresh to strong northerly winds. Freezing level above summits, falling to 300m.
Fri 13 Feb
Sunrise:
Sunset:
Mostly dry with bright or sunny spells. Fresh to strong northwesterly winds. Freezing level 300m.
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.