Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for windy conditions with rain and showers, hill snow, through the weekend and into Monday becoming dry Tuesday before further rain spreads east Wednesday.
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.
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.
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
Dry and bright becoming cloudy with showers. Fresh southwest summit winds will strengthen and turn south later.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
00% | 20% | 30% | 30% | 70% | 60% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
S
36
|
S
34
|
SW
35
|
S
37
|
S
44
|
SW
36
|
| 300m |
SW
15
|
SW
19
|
SW
21
|
S
22
|
S
26
|
SW
20
|
| Valley |
S
12
|
S
16
|
SW
18
|
S
20
|
S
22
|
SW
16
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 50 | 46 | 49 | 51 | 61 | 50 |
| 300m | 31 | 32 | 35 | 37 | 43 | 34 |
| Valley | 29 | 31 | 34 | 36 | 41 | 32 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-2°
|
-1°
|
3°
|
3°
|
2°
|
2°
|
| 300m |
1°
|
2°
|
6°
|
6°
|
5°
|
4°
|
| Valley |
2°
|
4°
|
7°
|
7°
|
6°
|
5°
|
| Freezing Level |
300m
|
400m
|
700m
|
700m
|
800m
|
900m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-11°
|
-9°
|
-5°
|
-5°
|
-6°
|
-6°
|
| 300m |
-5°
|
-3°
|
1°
|
1°
|
0°
|
-1°
|
| Valley |
-3°
|
-1°
|
3°
|
3°
|
2°
|
1°
|
Additional weather information
Meteorologist's view
It will feel bitterly cold in the strong wind. Showers become heavy later.
Weather
Cloud will increase from the morning with showers spreading east from midday. These showers will become prolonged and heavy from the late afternoon.
Chance of cloud-free hill tops
70%.
Low cloud and visibility
Cloud will increase through the morning becoming broken with the base above the summit by the afternoon. Heavier showers will lower the base at times in the afternoon. The visibility will be mostly good, falling poor in showers later.
Mountain weather information
Weather
A mainly dry day with just the off chance of an odd shower.
Chance of cloud-free hill tops
80%.
Maximum wind speed expected
Southwest increase 30-35mph gust 45mph.
Temperature
- At 700m Plus 4C.
- Valley Plus 5C rising plus 11C.
- Freezing level 800m.
Low cloud and visibility
Broken cloud remains mostly above the summits as the visibility stays good.
Mountain weather information
Mon 13 Apr
Sunrise:
Sunset:
Cloudy with isolated showers. Freezing level 800m with moderate southerly summit winds.
Tue 14 Apr
Sunrise:
Sunset:
A dry day with sunny spells. Freezing level above the summits with fresh southeast summit winds.
Wed 15 Apr
Sunrise:
Sunset:
Cloudy with outbreaks of rain. Freezing level above the summits with gale southerly summit winds.
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.