
Mourne Mountains Mountain weather forecast table
Confidence
High generally, but lower for timing of rainy conditions on Thursday morning.
This evening forecast
Sunny intervals and isolated showers, the showers dying out by dusk. Freshening westerly wind.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Gales
Severe Chill Effect
Poor Visibility
Mountain weather forecast
A dull start with occasional rain and hill fog then brighter in the afternoon with the odd shower. Windy.
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
|
|
Chance of precipitation (at 700m) |
10% | 50% | 70% | 30% | 30% | 10% | <05% | <05% |
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
600m |
SW
21
|
SW
25
|
SW
25
|
W
28
|
W
29
|
W
30
|
W
26
|
W
19
|
300m |
SW
10
|
SW
14
|
SW
14
|
W
17
|
W
18
|
W
19
|
W
17
|
W
11
|
Valley |
SW
9
|
SW
12
|
SW
11
|
W
14
|
W
16
|
W
17
|
W
15
|
W
8
|
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
600m | 29 | 36 | 35 | 40 | 44 | 45 | 40 | 28 |
300m | 19 | 26 | 25 | 30 | 33 | 35 | 31 | 20 |
Valley | 19 | 25 | 24 | 28 | 32 | 33 | 29 | 19 |
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
600m |
6°
|
6°
|
7°
|
8°
|
10°
|
10°
|
8°
|
7°
|
300m |
8°
|
8°
|
9°
|
10°
|
13°
|
13°
|
11°
|
9°
|
Valley |
10°
|
9°
|
10°
|
12°
|
14°
|
14°
|
12°
|
10°
|
Freezing Level |
1,500m
|
1,800m
|
2,000m
|
1,700m
|
1,600m
|
1,500m
|
1,400m
|
1,400m
|
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
600m |
1°
|
0°
|
2°
|
3°
|
5°
|
5°
|
3°
|
2°
|
300m |
6°
|
5°
|
6°
|
7°
|
9°
|
9°
|
8°
|
6°
|
Valley |
8°
|
6°
|
7°
|
9°
|
11°
|
11°
|
9°
|
8°
|
Additional weather information
Meteorologist's view
Improving after a dull start on Wednesday with a repeat performance likely on Thursday.
Weather
A dry start to the early hours, but soon clouding over with occasional light rain and some hill fog. This rain lasting into the mid morning period before brightening up to sunshine and the odd shower, even these dying out by mid afternoon. A dry evening.
Chance of cloud-free hill tops
70% at midnight falling 10% before dawn, improving 70% by late morning and over 90% in the afternoon and evening.
Low cloud and visibility
Cloud becoming extensive overnight at 400-700m and reduced visibility in rain below the cloud. Then cloud lifting back to 750m by mid morning and then breaking and lifting off tops, with generally good visibility for the rest of the day.
Mountain weather information
Weather
Dry at first the early hours, then clouding over with patchy rain developing before dawn. The rain probably lasting into the mid to late morning period and accompanied by hill fog. Then becoming drier by midday the cloud lifting and breaking in the afternoon to bring some sunny spells. A dry clear evening. Some slight uncertainties regarding the timing of the improvement which could be a couple of hours faster or slower.
Chance of cloud-free hill tops
10% in morning rising 90% by afternoon.
Maximum wind speed expected
Westerly 30 gusts 40mph.
Temperature
- At 700m Plus 7 Celsius
- Valley 10 Celsius rising to 16 Celsius in the afternoon
- Freezing level Above the summits
Low cloud and visibility
Patchy cloud above 750m in early hours becoming extensive at 400-700m before dawn, and reduced visibility in rain below the cloud. Then lifting back to 750m by late morning and then breaking and lifting off tops, with generally very good visibility for the rest of the day
Mountain weather information
Fri 27 May
Dry broken cloud and some sunny spells. Good visibility. Fresh to strong northwesterly winds on the tops, and freezing level above the summits.
Sat 28 May
Dry with bright or sunny spells. Lighter northwest breeze.
Sun 29 May
Remaining dry and bright with mostly light northerly breeze.
Summit specific forecast
Mountain summit forecast map
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.
The Mourne Mountains include the highest mountains in Northern Ireland; the highest of these is Slieve Donard standing at 850 metres at the northeastern edge of the Mournes, overlooking Newcastle and Dundrum Bay. At the summit of Slieve Donard there is a cairn and a small stone tower, which is part of the Mourne Wall, which passes over the mountain’s southern and western shoulders.
The Mourne Wall is a 35 kilometre dry stone wall that crosses fifteen summits, constructed between 1904 and 1922 by the Belfast Water Commissioners to define and enclose the catchment area for the newly constructed Silent Valley Reservoir.v