Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence in the dry and settled conditions for Friday and Saturday. Low confidence in a change to more unsettled and showery conditions from Sunday afternoon onwards.
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
Dry and largely sunny with light winds.
| 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 |
SE
7
|
SE
7
|
SE
10
|
S
10
|
S
10
|
S
12
|
| 300m |
E
3
|
SE
6
|
SE
8
|
S
8
|
S
6
|
S
3
|
| Valley |
E
2
|
SE
5
|
SE
8
|
S
8
|
S
6
|
SE
2
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 9 | 10 | 14 | 14 | 13 | 16 |
| 300m | 4 | 8 | 12 | 12 | 8 | 7 |
| Valley | 4 | 7 | 12 | 13 | 9 | 7 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
7°
|
8°
|
9°
|
9°
|
8°
|
8°
|
| 300m |
7°
|
11°
|
12°
|
12°
|
11°
|
6°
|
| Valley |
7°
|
12°
|
14°
|
14°
|
12°
|
6°
|
| Freezing Level |
1,900m
|
1,700m
|
1,700m
|
1,600m
|
1,500m
|
1,500m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
5°
|
6°
|
6°
|
6°
|
6°
|
6°
|
| 300m |
6°
|
10°
|
10°
|
10°
|
10°
|
5°
|
| Valley |
7°
|
11°
|
12°
|
12°
|
11°
|
5°
|
Additional weather information
Meteorologist's view
Sunburn risk in strong sunshine so suitable protection is advised. Feeling chilly in the morning.
Weather
A chilly start with the odd shallow mist or fog patch in valleys but this clearing soon after dawn. Otherwise a dry day with lengthy sunny spells, especially in the afternoon. Winds generally light, but turning slightly breezier in the afternoon.
Chance of cloud-free hill tops
95%
Low cloud and visibility
The odd patch of cloud around 700m to start the day, otherwise summits clear of cloud. Very good visibility, but poor in any overnight mist or fog patches.
Mountain weather information
Weather
Dry, warm and largely sunny with just a few patches of cloud bubbling up in the afternoon.
Chance of cloud-free hill tops
95%
Maximum wind speed expected
Gusting to 15mph on summits and ridges.
Temperature
- At 700m Plus 3 rising 10 Celsius
- Valley Plus 4 rising 16 Celsius
- Freezing level Above summits.
Low cloud and visibility
No low cloud expected and visibility will be very good.
Mountain weather information
Sun 11 May
Sunrise:
Sunset:
A dry and warm day with rafts of high cloud turning sunshine hazy at times. Risk of a shower in the afternoon. Moderate summit winds.
Mon 12 May
Sunrise:
Sunset:
Partly cloudy with the risk of a few showers. Gentle to moderate summit winds.
Tue 13 May
Sunrise:
Sunset:
Variable amounts of cloud with a few showers. Moderate to fresh summit 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.