Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for this evening and much of tomorrow. Lower confidence in the timing of the rain on Wednesday. Low confidence on timing of any rain and wind strength on Friday and 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.
Severe Chill Effect
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.
Mountain weather forecast
A cloudy start, ahead of rain arriving by the afternoon. Drier and brighter evening. Windy on the tops.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
<05% | <05% | 80% | 20% | 10% | <05% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
SW
20
|
SW
24
|
SW
25
|
NW
29
|
NW
24
|
NW
22
|
| 300m |
SW
11
|
SW
14
|
SW
15
|
NW
20
|
NW
15
|
NW
12
|
| Valley |
SW
9
|
SW
12
|
SW
14
|
NW
18
|
NW
13
|
NW
9
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 28 | 34 | 36 | 41 | 35 | 31 |
| 300m | 19 | 23 | 26 | 33 | 26 | 21 |
| Valley | 18 | 22 | 26 | 32 | 25 | 18 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
4°
|
5°
|
7°
|
4°
|
3°
|
1°
|
| 300m |
6°
|
8°
|
9°
|
7°
|
6°
|
3°
|
| Valley |
8°
|
9°
|
11°
|
9°
|
7°
|
4°
|
| Freezing Level |
1,700m
|
1,900m
|
1,900m
|
1,200m
|
800m
|
700m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-1°
|
0°
|
2°
|
-2°
|
-3°
|
-6°
|
| 300m |
3°
|
4°
|
6°
|
3°
|
2°
|
-1°
|
| Valley |
5°
|
6°
|
8°
|
5°
|
4°
|
1°
|
Additional weather information
Meteorologist's view
Low cloud at first will make for poor visibility and tricky navigation.
Weather
A cloudy start, with rain arriving from the northwest through the late morning, clearing by mid afternoon. Sunny spells and the odd light shower possible follows. Cold and windy on the tops.
Chance of cloud-free hill tops
Nil at first, becoming 80% from mid-afternoon.
Low cloud and visibility
Areas of cloud and fog above 200m at first then slowly lifting to higher slopes through the morning. No low cloud from mid-afternoon and visibility becoming excellent.
Mountain weather information
Weather
Dry and cloudy. A band of rain and low cloud arrives from the west through the evening. Fresh southerlies, with stronger gusts later.
Chance of cloud-free hill tops
100% becoming 50% through to late afternoon, and then 10% in the evening.
Maximum wind speed expected
Southerly 10 to 15 mph increasing 30 to 40 mph gusts 50mph in evening.
Temperature
- At 700m Minus 1C rising to 3C.
- Valley Plus 3C rising to 8C.
- Freezing level 500m rising to above summits through the afternoon.
Low cloud and visibility
Excellent visibility and no low cloud expected at first. Prolonged low cloud and poor visibility likely by the evening.
Mountain weather information
Fri 3 Apr
Sunrise:
Sunset:
Unsettled, with showers or longer spells of rain. Light southwesterly winds, perhaps some strong gusts later. Freezing level above summits.
Sat 4 Apr
Sunrise:
Sunset:
Unsettled, with showers or longer spells of rain. Light becoming gale to severe gale force southerly wind later. Freezing level above summits
Sun 5 Apr
Sunrise:
Sunset:
Showers, easing later. Strong to gale force westerly winds. Freezing level 600-800m.
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.