Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for rather unsettled through the next few days with outbreaks of rain and for plenty of fine weather early next week, but lower for details with regard to clearance of cloud and rain on Saturday.
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
Mainly dry with some sunshine and a few light passing showers. Winds easing.
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
20% | 20% | 20% | 20% | 20% | 50% |
Wind direction and speed (mph)
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
N
28
|
NE
32
|
NE
30
|
NE
31
|
E
26
|
E
28
|
| 300m |
N
13
|
NE
17
|
NE
19
|
NE
19
|
NE
16
|
E
16
|
| Valley |
N
12
|
NE
15
|
NE
17
|
NE
16
|
NE
14
|
E
13
|
Wind gust (mph)
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m | 39 | 44 | 42 | 43 | 39 | 41 |
| 300m | 25 | 31 | 32 | 32 | 29 | 30 |
| Valley | 24 | 29 | 31 | 31 | 28 | 28 |
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
8°
|
9°
|
11°
|
12°
|
11°
|
10°
|
| 300m |
10°
|
12°
|
14°
|
15°
|
13°
|
11°
|
| Valley |
11°
|
13°
|
16°
|
16°
|
15°
|
12°
|
| Freezing Level |
2,600m
|
2,200m
|
2,400m
|
2,400m
|
2,500m
|
2,500m
|
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
3°
|
4°
|
6°
|
7°
|
7°
|
5°
|
| 300m |
7°
|
9°
|
10°
|
11°
|
10°
|
8°
|
| Valley |
8°
|
10°
|
12°
|
13°
|
12°
|
10°
|
Additional weather information
Meteorologist's view
Nothing to add.
Weather
Mainly dry with some bright or sunny interludes and a few passing showers. Clouds thickening this evening with patchy rain and drizzle.
Chance of cloud-free hill tops
Around 75% this morning but falling to around 25% through the afternoon.
Low cloud and visibility
Occasional cloud becoming periods above 600-750m through the morning, the cloud lowering at times to 450m later in rain and drizzle. Away from cloud visibility very good falling to several kilometres at times in rain and drizzle.
Mountain weather information
Weather
Rather cloudy with showers or longer outbreaks of rain. Becoming drier with clear spells through the evening.
Chance of cloud-free hill tops
Little chance through much of the day, but chances improving through the evening.
Maximum wind speed expected
Mainly southerly or southwesterly 10mph or less.
Temperature
- At 700m Around plus 7 Celsius
- Valley Plus 9 or 10 Celsius overnight rising to 14 or 15 Celsius by day
- Freezing level Well above the summits
Low cloud and visibility
Periods or persistent cloud above 450-600m, lowering to 300m at times in rain, cloud breaking though the evening to become more occasional above 600-750m. Away from cloud, visibility good falling to several kilometres at times in rain, becoming very good later
Mountain weather information
Sun 5 May
Sunrise:
Sunset:
Mainly dry with some good spells of sunshine developing, just the odd shower possible. Light easterly breeze. Freezing level well above the summits.
Mon 6 May
Sunrise:
Sunset:
A few showers around but for most another dry day with some good spells of sunshine. Mainly light winds. Freezing levels remaining well above the summits.
Tue 7 May
Sunrise:
Sunset:
Sunny spells and showers. Light and variable winds. Freezing level well above the summits.
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.