Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for mostly dry weather over the next few days and also brighter skies from Thursday into the weekend.
This evening forecast
Mostly dry, rather cloudy conditions this evening with a light northwesterly breeze.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
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.
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
Mainly dry. Sunny spells. Light winds.
| 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) |
10% | 10% | 10% | 10% | 20% | 20% | 10% | 10% |
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 |
NW
14
|
NW
18
|
NW
20
|
NW
19
|
NW
18
|
NW
19
|
NW
20
|
NW
22
|
| 300m |
NW
7
|
NW
11
|
NW
12
|
NW
13
|
NW
12
|
NW
13
|
NW
14
|
NW
13
|
| Valley |
NW
6
|
NW
9
|
NW
12
|
NW
13
|
NW
11
|
NW
12
|
N
13
|
NW
12
|
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 | 19 | 24 | 28 | 26 | 26 | 28 | 29 | 31 |
| 300m | 12 | 18 | 20 | 21 | 20 | 23 | 23 | 23 |
| Valley | 12 | 17 | 20 | 21 | 20 | 22 | 22 | 21 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
10°
|
9°
|
10°
|
10°
|
12°
|
13°
|
12°
|
10°
|
| 300m |
12°
|
12°
|
12°
|
14°
|
15°
|
16°
|
15°
|
13°
|
| Valley |
14°
|
13°
|
13°
|
15°
|
16°
|
17°
|
16°
|
14°
|
| Freezing Level |
2,700m
|
2,700m
|
2,700m
|
2,600m
|
2,600m
|
2,600m
|
2,700m
|
2,600m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
8°
|
6°
|
6°
|
7°
|
9°
|
9°
|
9°
|
7°
|
| 300m |
12°
|
10°
|
10°
|
11°
|
13°
|
13°
|
13°
|
10°
|
| Valley |
13°
|
11°
|
11°
|
13°
|
14°
|
15°
|
14°
|
12°
|
Additional weather information
Meteorologist's view
High UV levels will bring a risk of sunburn.
Weather
Mainly dry with bright or sunny spells. Also a few light passing showers.
Chance of cloud-free hill tops
70%.
Low cloud and visibility
Good visibility with occasional cloud cover above about 700 to 800m.
Mountain weather information
Weather
Dry with sunny spells.
Chance of cloud-free hill tops
80%.
Maximum wind speed expected
Light winds, northwest becoming southwest, average speeds about 10mph.
Temperature
- At 700m 15 Celsius.
- Valley 10 Celsius rising to 21 Celsius.
- Freezing level Well above the summits.
Low cloud and visibility
Very good visibility with occasional cloud cover above about 700 to 800m.
Mountain weather information
Fri 25 Jul
Sunrise:
Sunset:
Rather cloudy start with a few light showers, then dry with sunny periods developing. Southwest winds freshening later.
Sat 26 Jul
Sunrise:
Sunset:
Mainly dry with sunny spells. Fresh westerly winds on the tops.
Sun 27 Jul
Sunrise:
Sunset:
Rather cloudy with possibly some rain for a time. Lighter 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.