Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for Saturday. High for changeable weather to continue into next week.
This evening forecast
Dry, very cold and partly cloudy.
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.
Mountain weather forecast
Mainly dry and very cold. Snow and strong winds late evening.
| 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) |
30% | 20% | 00% | 00% | 00% | 00% | 00% | 40% |
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 |
SW
12
|
W
13
|
NW
18
|
NW
17
|
W
11
|
W
10
|
SW
12
|
S
21
|
| 300m |
W
4
|
NW
4
|
NW
10
|
NW
11
|
NW
6
|
W
5
|
SW
5
|
S
9
|
| Valley |
SW
4
|
E
3
|
NW
9
|
NW
10
|
NW
6
|
W
4
|
S
4
|
S
7
|
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 | 17 | 19 | 26 | 23 | 14 | 12 | 16 | 30 |
| 300m | 9 | 8 | 18 | 18 | 10 | 8 | 9 | 18 |
| Valley | 9 | 7 | 18 | 18 | 10 | 8 | 8 | 16 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
0°
|
-1°
|
-1°
|
-1°
|
0°
|
1°
|
0°
|
1°
|
| 300m |
0°
|
0°
|
0°
|
0°
|
2°
|
2°
|
0°
|
2°
|
| Valley |
1°
|
0°
|
1°
|
1°
|
3°
|
3°
|
0°
|
3°
|
| Freezing Level |
400m
|
400m
|
400m
|
400m
|
500m
|
600m
|
600m
|
700m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-5°
|
-6°
|
-8°
|
-8°
|
-4°
|
-3°
|
-5°
|
-6°
|
| 300m |
-3°
|
-2°
|
-4°
|
-5°
|
-1°
|
0°
|
-2°
|
-1°
|
| Valley |
-2°
|
-2°
|
-3°
|
-4°
|
0°
|
1°
|
-2°
|
0°
|
Additional weather information
Meteorologist's view
Hazardous winter conditions developing from mid-evening as strong winds and snow combine to give worsening weather.
Weather
Chance a few snow showers in the early hours. Then most of the day will be dry with variable amounts of cloud. Strengthening southerly winds will bring snow from mid-evening.
Chance of cloud-free hill tops
70%
Low cloud and visibility
Poor in areas of cloud down to 500 metres in early snow showers. Otherwise good visibility with only small amounts of summit cloud. Poor visibility in snow and cloud down to 750 metres developing from mid-evening.
Mountain weather information
Weather
An overcast day with spells of rain, briefly preceded by summit snow in the early hours. Very windy with summit severe gales, leading to drenching conditions and a risk of being blown over.
Chance of cloud-free hill tops
Little chance
Maximum wind speed expected
Southwesterly average speeds of 40 mph with gusts to 60 mph, 10 mph or so stronger on the higher tops
Temperature
- At 700m Plus 1 rising to 8 Celsius
- Valley Plus 2 rising to 10 Celsius
- Freezing level 800 metres soon rising above summits
Low cloud and visibility
Poor in extensive cloud down to 400 to 700 metres throughout
Mountain weather information
Mon 12 Jan
Sunrise:
Sunset:
Very windy with showers or longer spells of rain. Summit southwesterly gales.
Tue 13 Jan
Sunrise:
Sunset:
Cold with the chance of a few wintry showers.
Wed 14 Jan
Sunrise:
Sunset:
Dry for most of the day but rain and summit snow likely later on.
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.