Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
Medium
This evening forecast
Snow showers.
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.
Mountain weather forecast
Bright spells and scattered snow showers. Severe wind chill.
| 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) |
50% | 30% | 40% | 30% | 20% | 20% | 10% | 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 |
N
23
|
NW
26
|
NW
26
|
NW
25
|
NW
25
|
NW
23
|
NW
24
|
NW
18
|
| 300m |
N
11
|
NW
14
|
NW
14
|
NW
14
|
NW
15
|
NW
13
|
NW
13
|
NW
10
|
| Valley |
N
10
|
NW
12
|
NW
12
|
NW
12
|
NW
13
|
NW
11
|
NW
11
|
NW
9
|
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 | 32 | 36 | 35 | 34 | 34 | 31 | 34 | 25 |
| 300m | 21 | 24 | 25 | 24 | 25 | 22 | 23 | 18 |
| Valley | 21 | 23 | 24 | 23 | 24 | 21 | 22 | 17 |
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°
|
-1°
|
-1°
|
-2°
|
-1°
|
-2°
|
-1°
|
| 300m |
1°
|
1°
|
1°
|
0°
|
1°
|
1°
|
0°
|
0°
|
| Valley |
2°
|
2°
|
2°
|
1°
|
2°
|
2°
|
1°
|
0°
|
| Freezing Level |
500m
|
500m
|
500m
|
400m
|
400m
|
400m
|
400m
|
400m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-8°
|
-9°
|
-9°
|
-9°
|
-9°
|
-9°
|
-9°
|
-8°
|
| 300m |
-4°
|
-4°
|
-5°
|
-5°
|
-4°
|
-4°
|
-5°
|
-5°
|
| Valley |
-2°
|
-3°
|
-3°
|
-3°
|
-2°
|
-2°
|
-4°
|
-4°
|
Additional weather information
Meteorologist's view
Nothing further to add.
Weather
Bright or clear spells with scattered snow showers, although rain or sleet low down. The showers most likely overnight and during the morning with rain or sleet low down.
Chance of cloud-free hill tops
70%
Low cloud and visibility
Occasional low cloud at times, mainly in association with showers, base 600m or less, but often scattered at or above the summits. Visibility very good falling very poor in snow showers.
Mountain weather information
Weather
Starting clear and cold, perhaps a few freezing fog patches in the valleys. Snow showers feeding in from the west later in the night and during the morning, with rain or sleet at low levels, but details around this uncertain. Turning drier and brighter in the afternoon.
Chance of cloud-free hill tops
30% overnight and early morning, becoming 80% by afternoon.
Maximum wind speed expected
South or South 10 to 20mph with a significant wind chill.
Temperature
- At 700m Minus 1 to Minus 3 Celsius
- Valley Minus 2 rising to Plus 3 during the day.
- Freezing level All levels, rising to around 600m during the day.
Low cloud and visibility
Often nil significant, but extensive, base below 600m, in any snow showers. Visibility mostly very good, but very poor in any snow showers and freezing fog.
Mountain weather information
Sun 11 Jan
Sunrise:
Sunset:
A transition too much milder conditions with outbreaks of heavy rain and gale force southerly winds at times. A short period of heavy snow possible at height along with blizzard condition during the early hours. Freeing level soon rising above the summits.
Mon 12 Jan
Sunrise:
Sunset:
Cloudy or bright with occasional rain. Strong southwest winds at height.
Tue 13 Jan
Sunrise:
Sunset:
Cloudy with outbreaks of rain. Fresh to strong southwest winds at height.
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.