Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for overall setup and for the cloudy, cold and often wet conditions to continue. Lower confidence for exact detail and timing of rain.
This evening forecast
Cloudy with rain and snow on highest tops above 600m. Fresh to strong southeasterly winds. Cold with risk of severe wind chill.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
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.
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.
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.
Mountain weather forecast
Cloudy with rain or snow in the morning, drier later. Cold with strong winds at times.
| 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) |
>95% | >95% | >95% | 40% | 30% | 10% | 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 |
E
27
|
E
26
|
E
23
|
E
21
|
SE
19
|
SE
21
|
E
26
|
E
30
|
| 300m |
E
15
|
E
14
|
E
14
|
E
13
|
E
12
|
E
13
|
E
15
|
E
17
|
| Valley |
E
12
|
E
12
|
E
11
|
E
11
|
E
10
|
E
11
|
E
13
|
E
15
|
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 | 39 | 37 | 34 | 30 | 27 | 30 | 38 | 43 |
| 300m | 27 | 25 | 24 | 22 | 21 | 22 | 27 | 31 |
| Valley | 25 | 24 | 22 | 21 | 20 | 21 | 26 | 29 |
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°
|
2°
|
3°
|
3°
|
3°
|
| 300m |
2°
|
3°
|
3°
|
3°
|
4°
|
5°
|
5°
|
5°
|
| Valley |
4°
|
4°
|
4°
|
4°
|
5°
|
6°
|
6°
|
6°
|
| Freezing Level |
600m
|
700m
|
900m
|
1,000m
|
1,100m
|
1,100m
|
1,000m
|
1,000m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-7°
|
-6°
|
-6°
|
-5°
|
-4°
|
-3°
|
-4°
|
-4°
|
| 300m |
-3°
|
-2°
|
-2°
|
-1°
|
0°
|
1°
|
0°
|
0°
|
| Valley |
-1°
|
0°
|
0°
|
1°
|
2°
|
3°
|
2°
|
2°
|
Additional weather information
Meteorologist's view
A dull and cold day on the Mournes with rain, sleet and snow in the morning. Warm and waterproof clothing required. Low cloud may make for tricky navigation and possible disorientation.
Weather
A cloudy and overcast day. Rain perhaps heavy and falling as snow on highest tops at first. Snow will transition to sleet then rain at all levels through the morning before turning dry for the afternoon. Fresh to strong winds. Cold with wind chill.
Chance of cloud-free hill tops
Mostly nil. 10% in the evening.
Low cloud and visibility
Widespread low cloud and hill fog with bases 300-500m. Cloud may break up in the evening to give some brief clearer spells. Visibility very poor in cloud and rain or snow, good outside of cloud.
Mountain weather information
Weather
A cloudy but dry start. Rain soon pushing northward through the morning, persisting for the rest of the day with some heavy outbreaks at times. Rain may fall as snow on highest tops at times. Strong easterly winds with a risk of gales on summits tops. Cold.
Chance of cloud-free hill tops
Nil.
Maximum wind speed expected
Easterly 40-45mph gusting 45-55mph.
Temperature
- At 700m Plus 1 or 2 Celsius.
- Valley Plus 5 or 6 Celsius.
- Freezing level Mostly above summits, may drop to 800m at times.
Low cloud and visibility
Widespread low cloud throughout the day with base 400-600m, possibly falling to lower slopes in rain. Any cloud breaks will be brief with tops remaining in cloud. Visibility very poor in cloud and rain, good outside of cloud.
Mountain weather information
Fri 6 Feb
Sunrise:
Sunset:
Cloudy with outbreaks of rain in the morning, perhaps drier later. Strong easterly winds. Freezing level above summits.
Sat 7 Feb
Sunrise:
Sunset:
Cloudy with rain at times. Fresh to strong southeasterly winds. Freezing level above summits.
Sun 8 Feb
Sunrise:
Sunset:
Another cloudy day with rain at times. Fresh to strong southeasterly winds. Freezing level above summits.
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.