Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence in largely settled conditions until later Friday. Likely more unsettled thereafter but low confidence in details.
This evening forecast
A few patches of cloud around 600-800m at first, but gradually clearing to leave clear skies and good visibilities. Easterly winds 20-30mph. Feeling chilly at height.
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.
Mountain weather forecast
Dry and sunny. Early mist or fog. Windy later.
| 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% | 00% | 00% | 00% | 00% | 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 |
E
17
|
E
19
|
E
23
|
E
22
|
E
23
|
E
25
|
E
28
|
E
33
|
| 300m |
E
8
|
E
8
|
E
11
|
E
15
|
E
16
|
E
16
|
E
15
|
E
17
|
| Valley |
E
6
|
E
6
|
NE
7
|
E
12
|
E
14
|
E
15
|
E
13
|
E
14
|
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 | 25 | 28 | 33 | 32 | 33 | 36 | 40 | 47 |
| 300m | 16 | 17 | 21 | 25 | 26 | 28 | 27 | 31 |
| Valley | 15 | 16 | 18 | 22 | 24 | 27 | 26 | 29 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
5°
|
4°
|
4°
|
6°
|
7°
|
8°
|
9°
|
8°
|
| 300m |
7°
|
5°
|
6°
|
8°
|
10°
|
12°
|
12°
|
9°
|
| Valley |
8°
|
6°
|
6°
|
10°
|
12°
|
13°
|
13°
|
10°
|
| Freezing Level |
1,600m
|
1,300m
|
1,000m
|
900m
|
1,100m
|
1,300m
|
1,400m
|
1,400m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
0°
|
-1°
|
-2°
|
0°
|
2°
|
4°
|
5°
|
2°
|
| 300m |
4°
|
2°
|
2°
|
5°
|
7°
|
8°
|
9°
|
6°
|
| Valley |
6°
|
4°
|
4°
|
8°
|
9°
|
10°
|
10°
|
8°
|
Additional weather information
Meteorologist's view
Note the strengthening winds later in the day, with gusts of 40-50mph giving difficult walking conditions with a risk of being blown off balance. Navigation could be challenging with energy output significantly increased when walking into the wind. Note the UV level so suitable protection may be needed. Feeling chilly at height outside of sunlight hours.
Weather
Some patches of mist or fog forming in the valleys through the early hours, or some patches of low cloud around low elevations. This all clearing shortly after dawn to leave a dry and sunny day. Strengthening easterly winds through the day. Feeling chilly at height in early hours and late evening.
Chance of cloud-free hill tops
90% or higher.
Low cloud and visibility
Some areas of mist or fog forming in valleys overnight, or some patches of cloud forming around low elevations on eastern upslopes, but the summits likely rising above the cloud layer. Any of this clearing soon after dawn to leave clear summits and good visibilities.
Mountain weather information
Weather
Bright, but the sunshine will be hazier with plenty of high level cloud around. Largely dry, but very small chance of the odd spot of rain in the afternoon. Windy in the morning, gradually easing later.
Chance of cloud-free hill tops
90% or higher.
Maximum wind speed expected
East gusting 40-50mph in the morning, easing and veering southeast later in the day.
Temperature
- At 700m Plus 3C rising to plus 10C by day.
- Valley Plus 8C rising to plus 16C by day.
- Freezing level Well above summits.
Low cloud and visibility
Summits clear with any cloud well above summit height. Good visibilities.
Mountain weather information
Fri 1 May
Sunrise:
Sunset:
Mostly dry with hazy sunshine. Chance of the odd shower. Light southeast winds veering southwest.
Sat 2 May
Sunrise:
Sunset:
Cloudier than previous days though perhaps a few bright spells possible. Likely a few showers around. Light winds.
Sun 3 May
Sunrise:
Sunset:
Mostly cloudy with a few showers. Light 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.