Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for Tuesday. High for changeable weather from Wednesday onwards.
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.
Mountain weather forecast
Dry, bright and cold
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
00% | 00% | 00% | 00% | 00% | 00% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
W
19
|
W
18
|
SW
22
|
SW
19
|
SW
19
|
SW
24
|
| 300m |
W
10
|
W
9
|
W
8
|
W
5
|
SW
5
|
SW
8
|
| Valley |
W
9
|
W
8
|
W
6
|
SW
4
|
SW
4
|
SW
7
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 27 | 25 | 31 | 27 | 26 | 33 |
| 300m | 18 | 16 | 15 | 12 | 13 | 18 |
| Valley | 18 | 16 | 15 | 12 | 12 | 18 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
2°
|
3°
|
2°
|
2°
|
2°
|
1°
|
| 300m |
3°
|
3°
|
4°
|
4°
|
2°
|
2°
|
| Valley |
3°
|
3°
|
5°
|
4°
|
2°
|
3°
|
| Freezing Level |
700m
|
700m
|
800m
|
700m
|
800m
|
800m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-3°
|
-3°
|
-4°
|
-4°
|
-4°
|
-6°
|
| 300m |
-1°
|
-1°
|
1°
|
2°
|
0°
|
-2°
|
| Valley |
0°
|
0°
|
3°
|
3°
|
0°
|
0°
|
Additional weather information
Meteorologist's view
Nothing to add
Weather
Dry throughout with some lengthy clear or sunny periods. Some fog in the glens clearing by early afternoon.
Chance of cloud-free hill tops
90%
Low cloud and visibility
Good visibility with little in the way of summit cloud
Mountain weather information
Weather
A wet start to the day before drier weather spreads from the west by late morning. The afternoon will be brighter with the chance of a few brief showers. Stormy with summit gales, easing somewhat in the afternoon.
Chance of cloud-free hill tops
40%, best chance in the afternoon
Maximum wind speed expected
Southerly average speeds of 40 mph with gusts to 60 mph in the morning, 10 mph or so more on the highest tops.
Temperature
- At 700m Plus 5 Celsius
- Valley Plus 4 rising to 12 Celsius
- Freezing level Above the summits
Low cloud and visibility
Poor in extensive cloud down to 450 metres in the morning. This will lift off the tops early in the afternoon with patchy cloud around 900 metres thereafter.
Mountain weather information
Thu 18 Dec
Sunrise:
Sunset:
Windy with showers or occasionally longer spells of rain. Summit southwesterly gales.
Fri 19 Dec
Sunrise:
Sunset:
Windy with the chance of a few passing showers. Strong to gale summit southwesterly gales.
Sat 20 Dec
Sunrise:
Sunset:
Little change, remaining windy with a chance of showers.
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.