Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for mild but unsettled conditions for the rest of the week becoming colder during the weekend. Lower confidence for detail from the weekend.
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.
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.
Mountain weather forecast
Cloudy with light rain then bright spells and the odd shower later. Near gale to gale southwest summit wind.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
20% | 30% | 50% | 10% | 10% | 20% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
SW
28
|
SW
35
|
SW
38
|
SW
38
|
SW
42
|
SW
43
|
| 300m |
SW
12
|
SW
17
|
SW
19
|
SW
20
|
SW
22
|
SW
24
|
| Valley |
SW
11
|
SW
12
|
SW
16
|
SW
16
|
SW
18
|
SW
19
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 38 | 47 | 52 | 52 | 58 | 59 |
| 300m | 24 | 29 | 34 | 35 | 39 | 41 |
| Valley | 27 | 26 | 32 | 33 | 37 | 38 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
9°
|
9°
|
9°
|
7°
|
5°
|
4°
|
| 300m |
10°
|
10°
|
11°
|
10°
|
7°
|
6°
|
| Valley |
11°
|
11°
|
12°
|
11°
|
9°
|
8°
|
| Freezing Level |
2,800m
|
2,700m
|
2,400m
|
1,400m
|
1,200m
|
1,100m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
5°
|
4°
|
3°
|
2°
|
-2°
|
-3°
|
| 300m |
8°
|
7°
|
7°
|
6°
|
3°
|
1°
|
| Valley |
9°
|
9°
|
9°
|
8°
|
5°
|
4°
|
Additional weather information
Meteorologist's view
Low cloud and rain make navigation difficult in the morning. It will feel very cold as the cloud breaks in the afternoon and the strong wind will make walking difficult over higher ground later.
Weather
The morning will be cloudy with hill fog which will be accompanied by light rain or drizzle. The rain and cloud will clear from the early afternoon to leave patchy cloud with the odd shower towards the evening. The wind will strengthen to gale over the summits in the afternoon.
Chance of cloud-free hill tops
10% rising to 70% by late afternoon.
Low cloud and visibility
Extensive cloud 400-600m in the morning will lower to 200m at times in rain. The cloud will lift and break during the afternoon with bases rising to above 700m.
Mountain weather information
Weather
A day of patchy cloud interspersed with bright spells and the occasional shower.
Chance of cloud-free hill tops
80%.
Maximum wind speed expected
Southwest 50-55mph gust 65mph.
Temperature
- At 700m Plus 3-4C.
- Valley Plus 3C rising plus 9C.
- Freezing level 800m rising 1000m later.
Low cloud and visibility
Cloud will be patchy above 700m lowering 500m from the evening.
Mountain weather information
Sat 29 Nov
Sunrise:
Sunset:
Sunny spells with the odd wintry shower. Fresh northeast summit wind. Freezing level 1000 lowering to 600m.
Sun 30 Nov
Sunrise:
Sunset:
A dry and bright day becoming cloudy with outbreaks of rain later. Moderate northwest summit wind. Freezing level 400-600m.
Mon 1 Dec
Sunrise:
Sunset:
Cloudy with outbreaks of rain, some heavy but brighter and drier for a time around midday. Light southwest summit wind. Freezing level above the 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.