Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for an unsettled week with showers or rain and strong winds affecting the hills at times. Lower confidence in timings of rainfall due to changes in the track of low pressures. Keep up to date with the latest forecast to keep in touch with the detail.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Gales
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
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
A dry and bright day with sunny spells but strong winds.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
40% | <05% | <05% | <05% | 30% | 60% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
NW
37
|
W
29
|
W
24
|
W
20
|
SW
14
|
S
15
|
| 300m |
NW
17
|
W
15
|
W
15
|
W
12
|
W
6
|
S
6
|
| Valley |
NW
15
|
W
14
|
W
13
|
W
10
|
SW
5
|
S
5
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 50 | 39 | 34 | 28 | 21 | 22 |
| 300m | 32 | 26 | 25 | 20 | 13 | 13 |
| Valley | 31 | 26 | 24 | 19 | 13 | 13 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
7°
|
7°
|
10°
|
10°
|
10°
|
8°
|
| 300m |
9°
|
10°
|
13°
|
14°
|
12°
|
10°
|
| Valley |
10°
|
12°
|
14°
|
15°
|
13°
|
12°
|
| Freezing Level |
1,900m
|
1,600m
|
1,700m
|
1,700m
|
1,800m
|
1,900m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
2°
|
2°
|
5°
|
7°
|
7°
|
5°
|
| 300m |
6°
|
8°
|
10°
|
11°
|
11°
|
9°
|
| Valley |
8°
|
9°
|
12°
|
13°
|
12°
|
11°
|
Additional weather information
Meteorologist's view
Quite windy in the morning, winds moderating later in the day.
Weather
A dry and bright day with sunny spell, risk of a light shower in the afternoon. Clouding over in the afternoon with some rain reaching the areas by later evening.
Chance of cloud-free hill tops
95% very little low cloud.
Low cloud and visibility
Patchy low cloud around 700m in the morning but mostly lifting and summits remaining clear all day. Visibility will very good but turning hazier in the evening as the next rain band approaches.
Mountain weather information
Weather
Wet and windy overnight and for the start of the day with persistent heavy rain. Rain clearing soon after breakfast time and cloud starting to break with sunny spells, strong southwesterly winds.
Chance of cloud-free hill tops
20% improving to 80% in the afternoon.
Maximum wind speed expected
Southwesterly 25-30mph with gusts 35-40mph in the morning.
Temperature
- At 700m Plus 11 Celsius.
- Valley Plus 10 rising to 18 Celsius.
- Freezing level Above all summits.
Low cloud and visibility
Broken or overcast cloud above 3-400m in the morning, cloud breaking by mid morning and becoming scattered above 600m. Most low cloud dissipating by afternoon with clear summits expected. Visibility will be poor in early rain but this will gradually improve during the morning and becoming very good in the afternoon.
Mountain weather information
Thu 18 Sep
Sunrise:
Sunset:
Early rain clearing away leaving a dry day with some brighter spells, Strong southwesterly winds for much of the day.
Fri 19 Sep
Sunrise:
Sunset:
A dry and bright start but chance of rain developing and southwesterly winds.
Sat 20 Sep
Sunrise:
Sunset:
Remaining unsettled into the weekend with some showers at times but a few brighter spells too.
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.