Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence in the overall evolution to much colder and windier conditions by the second half of this week.
This evening forecast
A cloudy but mainly dry evening. Strong winds at height bringing a significant wind chill.
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
A dry and bright day with sunny spells developing. Brisk winds at height.
| 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) |
<05% | <05% | <05% | <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
21
|
E
18
|
E
18
|
E
16
|
E
12
|
NE
10
|
NE
10
|
NE
7
|
| 300m |
E
11
|
E
10
|
E
10
|
E
9
|
E
9
|
NE
6
|
NE
7
|
NE
6
|
| Valley |
E
10
|
E
8
|
E
8
|
E
7
|
E
7
|
NE
5
|
NE
6
|
NE
5
|
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 | 30 | 27 | 26 | 24 | 18 | 16 | 14 | 9 |
| 300m | 22 | 19 | 18 | 17 | 14 | 12 | 11 | 8 |
| Valley | 20 | 18 | 17 | 16 | 13 | 10 | 11 | 7 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
2°
|
2°
|
2°
|
2°
|
2°
|
1°
|
0°
|
0°
|
| 300m |
4°
|
4°
|
4°
|
3°
|
4°
|
4°
|
2°
|
1°
|
| Valley |
5°
|
5°
|
5°
|
4°
|
6°
|
5°
|
3°
|
2°
|
| Freezing Level |
900m
|
800m
|
700m
|
600m
|
600m
|
600m
|
500m
|
500m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-4°
|
-3°
|
-4°
|
-4°
|
-3°
|
-3°
|
-4°
|
-4°
|
| 300m |
0°
|
1°
|
0°
|
0°
|
1°
|
1°
|
-1°
|
-2°
|
| Valley |
2°
|
2°
|
2°
|
1°
|
3°
|
3°
|
0°
|
-1°
|
Additional weather information
Meteorologist's view
A decent day on the hills but note the wind chill at height in brisk winds.
Weather
A low risk of the odd patch of hill fog through the morning. Otherwise it will be a dry, bright rather cloudy day, however some sunnier spells may develop later.
Chance of cloud-free hill tops
90%
Low cloud and visibility
A few patches of hill fog on summits at first, otherwise clear of low cloud with excellent visibility.
Mountain weather information
Weather
A cold and frosty morning with a few mist and fog patches at low levels during the early hours, these perhaps lingering through the day in places. Otherwise a dry and pleasant day with some sunshine. Winds strengthening later.
Chance of cloud-free hill tops
90%
Maximum wind speed expected
Increasing to 20-30mph gusts by the evening.
Temperature
- At 700m Minus 2 Celsius.
- Valley 0 Celsius rising plus 4 Celsius.
- Freezing level 400m, locally lower.
Low cloud and visibility
Poor or very poor visibility in low level mist and fog. Otherwise summits clear of cloud with excellent visibility.
Mountain weather information
Thu 1 Jan
Sunrise:
Sunset:
Outbreaks of rain in the morning followed sunny spells and the odd shower by late afternoon. Freezing level above summits at first, falling to 400m later. Significant wind chill at height.
Fri 2 Jan
Sunrise:
Sunset:
A bitterly cold day with sunny spells and perhaps the odd light snow shower. Freezing level 200m and fresh to strong winds at height.
Sat 3 Jan
Sunrise:
Sunset:
Another bitterly cold day with a few scattered snow showers. Freezing level 200m and strong 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.