Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for generally dry and settled weather this week. Low confidence by the end of the week with the potential for conditions to turn more changeable and unsettled.
This evening forecast
Mostly cloudy this evening with some clear intervals and perhaps an isolated shower at first. Light northwesterly winds.
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.
Strong Sunlight
Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.
Mountain weather forecast
Mostly dry with sunny spells, the odd light afternoon shower possible.
| 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) |
00% | 00% | 00% | 10% | 20% | 40% | <05% | 00% |
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 |
N
14
|
NW
13
|
NW
14
|
N
12
|
N
11
|
N
11
|
N
12
|
N
15
|
| 300m |
N
7
|
NW
7
|
NW
8
|
N
9
|
N
8
|
N
5
|
N
7
|
N
9
|
| Valley |
N
6
|
NW
5
|
NW
8
|
N
8
|
N
7
|
NW
5
|
N
7
|
N
8
|
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 | 20 | 20 | 21 | 18 | 17 | 17 | 18 | 23 |
| 300m | 14 | 14 | 16 | 14 | 13 | 10 | 13 | 16 |
| Valley | 14 | 12 | 15 | 13 | 13 | 10 | 13 | 16 |
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°
|
7°
|
9°
|
10°
|
9°
|
6°
|
| 300m |
9°
|
8°
|
8°
|
10°
|
12°
|
12°
|
11°
|
8°
|
| Valley |
10°
|
8°
|
9°
|
11°
|
13°
|
13°
|
12°
|
9°
|
| Freezing Level |
1,800m
|
1,700m
|
1,700m
|
1,600m
|
1,600m
|
1,700m
|
1,700m
|
1,600m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
4°
|
2°
|
2°
|
4°
|
6°
|
7°
|
6°
|
2°
|
| 300m |
7°
|
6°
|
5°
|
8°
|
10°
|
11°
|
10°
|
6°
|
| Valley |
8°
|
7°
|
7°
|
10°
|
12°
|
12°
|
11°
|
7°
|
Additional weather information
Meteorologist's view
Low cloud at times may make for trickier navigation but still some clear spells. Chilly at times on the summits.
Weather
Some mist and fog in the valleys in the morning, but soon clearing after dawn. This leaves a largely dry day with variable cloud and sunny spells. A few showers possible in the afternoon. Dry with longer clear spells in the evening.
Chance of cloud-free hill tops
60%.
Low cloud and visibility
A few fog patches possible in the early morning before lifting, giving some isolated low cloud bases of around 400-500m for a time in the morning. Cloud bases then rising with lingering bases at 800-1000m before rising above summits later. Visibility very good but moderate in cloud and showers and poor in any fog.
Mountain weather information
Weather
Early morning valley fog soon clearing to leave a dry day with patchy cloud and long sunny spells. Light to moderate easterly breeze.
Chance of cloud-free hill tops
90%.
Maximum wind speed expected
East 15-20mph.
Temperature
- At 700m Plus 4C rising to 10C in the afternoon.
- Valley Pus 7C rising to 15C in the afternoon.
- Freezing level Above summits.
Low cloud and visibility
Some patchy low cloud around 400-500m in the morning, but otherwise cloud above summits. Visibility moderate or poor in cloud and fog, but very good for much of the day.
Mountain weather information
Wed 29 Apr
Sunrise:
Sunset:
Dry with largely clear skies and plenty of sunshine. Breezy easterly winds.
Thu 30 Apr
Sunrise:
Sunset:
Another dry day with plenty of sunshine on offer. Breezy easterly winds.
Fri 1 May
Sunrise:
Sunset:
Largely dry with sunny spells but a few showers possible. Mostly light winds, breezy on summits.
Updated at:
Summit specific forecast
Mountain summit forecast map
Loading map…
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.