Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
Medium
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.
Mountain weather forecast
Dry and bright.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
20% | 10% | <05% | <05% | <05% | <05% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
W
20
|
W
12
|
W
9
|
W
10
|
W
12
|
NW
12
|
| 300m |
W
8
|
W
6
|
W
4
|
NW
5
|
NW
6
|
NW
7
|
| Valley |
W
7
|
W
5
|
W
3
|
W
4
|
NW
6
|
NW
7
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 29 | 16 | 13 | 14 | 17 | 16 |
| 300m | 17 | 10 | 7 | 9 | 11 | 11 |
| Valley | 17 | 10 | 7 | 9 | 11 | 11 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
4°
|
4°
|
4°
|
4°
|
4°
|
3°
|
| 300m |
5°
|
4°
|
6°
|
5°
|
4°
|
4°
|
| Valley |
6°
|
5°
|
7°
|
6°
|
5°
|
4°
|
| Freezing Level |
800m
|
800m
|
900m
|
900m
|
800m
|
900m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-2°
|
0°
|
1°
|
0°
|
-1°
|
-1°
|
| 300m |
2°
|
2°
|
5°
|
4°
|
2°
|
1°
|
| Valley |
4°
|
3°
|
6°
|
5°
|
3°
|
2°
|
Additional weather information
Meteorologist's view
Nothing further to add.
Weather
Dry and bright during daylight hours with some sunny spells. Patchy mist and valley fog possible around dawn, becoming more widespread in the evening.
Chance of cloud-free hill tops
90%
Low cloud and visibility
Generally no significant low cloud, apart from valley mist and fog. Visibility mostly good or very good, except in valley mist and fog.
Mountain weather information
Weather
Some valley frost and fog or freezing fog forming overnight which will be slow to clear. Otherwise dry and bright with sunny or clear spells.
Chance of cloud-free hill tops
90%
Maximum wind speed expected
West or southwest 15 to 20mph.
Temperature
- At 700m Minus 1 to Plus 2 Celsius
- Valley Zero to Plus 8 Celsius
- Freezing level Most levels at first, rising to around the summits during the day.
Low cloud and visibility
Other than valley fog, no significant low cloud expected. Visibility mostly good or very good, except in valley fog.
Mountain weather information
Wed 17 Dec
Sunrise:
Sunset:
Cloudy with outbreaks of rain, heavy and persistent at times, perhaps becoming drier and clearer in the evening. Gale force south or southwest winds at height.
Thu 18 Dec
Sunrise:
Sunset:
Cloudy with outbreaks of rain, heavy and persistent at times and perhaps wintry over the summits. Drier and clearer early and late in the period. Winds becoming Northeast to Northwest moderate to fresh at height.
Fri 19 Dec
Sunrise:
Sunset:
Rather cloudy with occasional rain or showers, perhaps wintry over the summits. Moderate to fresh west or 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.