Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence until Thursday but low confidence in timing and detail of rain and strong winds from Thursday onwards.
This evening forecast
Cloudy but mostly dry this evening. Fresh to strong westerly winds and feeling cold on highest routes.
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
Mostly cloudy with brighter spells in the afternoon. Fresh to strong winds.
| 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) |
20% | 20% | 20% | 10% | 10% | 10% | 10% | 10% |
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 |
W
30
|
W
25
|
W
24
|
W
20
|
W
19
|
W
19
|
W
16
|
SW
19
|
| 300m |
W
12
|
W
11
|
W
10
|
W
11
|
W
12
|
W
12
|
W
9
|
SW
10
|
| Valley |
W
10
|
W
9
|
W
8
|
W
9
|
W
10
|
W
10
|
W
7
|
SW
8
|
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 | 42 | 34 | 34 | 28 | 27 | 28 | 23 | 27 |
| 300m | 24 | 21 | 20 | 19 | 21 | 21 | 15 | 17 |
| Valley | 24 | 20 | 19 | 18 | 20 | 19 | 14 | 16 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
6°
|
7°
|
6°
|
6°
|
7°
|
8°
|
7°
|
6°
|
| 300m |
8°
|
8°
|
8°
|
9°
|
10°
|
10°
|
10°
|
8°
|
| Valley |
9°
|
9°
|
9°
|
10°
|
12°
|
12°
|
11°
|
9°
|
| Freezing Level |
1,900m
|
1,800m
|
1,700m
|
1,400m
|
1,500m
|
1,500m
|
1,500m
|
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 |
1°
|
2°
|
1°
|
1°
|
3°
|
4°
|
3°
|
1°
|
| 300m |
5°
|
6°
|
5°
|
6°
|
8°
|
8°
|
8°
|
5°
|
| Valley |
6°
|
7°
|
7°
|
8°
|
9°
|
10°
|
9°
|
7°
|
Additional weather information
Meteorologist's view
Low cloud and strong winds at times will make for more challenging walking conditions and tricky navigation. Conditions improving in the afternoon.
Weather
A mostly cloudy day with but staying largely dry with just a few spots of rain and drizzle. Some bright spells possible in the afternoon. Strong winds on higher routes.
Chance of cloud-free hill tops
Nil first half of the morning, becoming 80% for the afternoon.
Low cloud and visibility
Low cloud with base 400-600m first half of the morning. Cloud lifting to base 700-1000m, with brighter spells and breaks in the afternoon where cloud will often rise above hill tops. Visibility generally poor in the morning with low cloud. Good visibility in the afternoon but still poor in lingering cloud.
Mountain weather information
Weather
A mostly dry and cloudy morning with the odd spot of rain possible. Rain, which may be heavy at times, spreading southeastwards in the afternoon. Becoming dry from later afternoon with long clear periods and late sunshine developing. Southwesterly winds strengthening.
Chance of cloud-free hill tops
10% morning and early afternoon, becoming 90% from late afternoon.
Maximum wind speed expected
Southwesterly 25-30mph gusting 35-40mph, becoming northwesterly.
Temperature
- At 700m Plus 4 or 5C, falling to minus 1C in the evening.
- Valley Plus 10C, falling to plus 5C in the evening.
- Freezing level Above summits, falling to 500-600m by end of the day.
Low cloud and visibility
Low cloud with base 300-500m, perhaps to lower slopes in heavy rain. Low cloud lifting and breaking later to leave no low cloud. Visibility very poor in heavy rain and cloud, good later outside of cloud.
Mountain weather information
Thu 2 Apr
Sunrise:
Sunset:
Largely dry morning with sunny spells, cloudy with rain spreading eastwards in the afternoon. Southeasterly winds becoming strong. Freezing level around 500m rising above summits.
Fri 3 Apr
Sunrise:
Sunset:
Mostly cloudy with outbreaks of heavy rain. Strong to gale force southwesterly winds. Freezing level above summits falling to 400m later.
Sat 4 Apr
Sunrise:
Sunset:
Some brighter spells with showers. Strong to gale force southwesterly 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.