Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for the unsettled and mobile westerly pattern to continue but lower confidence in exact details and timings of rainfall events.
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.
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.
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
Rain for a time in the morning before turning drier later with a few clear spells. Strong winds.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
40% | >95% | 40% | 10% | <05% | <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
32
|
SW
38
|
SW
33
|
SW
29
|
W
30
|
W
29
|
| 300m |
SW
16
|
SW
19
|
SW
17
|
SW
15
|
W
13
|
W
11
|
| Valley |
SW
12
|
S
15
|
SW
13
|
SW
12
|
W
11
|
W
11
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 43 | 52 | 46 | 40 | 42 | 42 |
| 300m | 28 | 34 | 30 | 26 | 25 | 24 |
| Valley | 26 | 31 | 28 | 25 | 25 | 26 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
6°
|
6°
|
5°
|
7°
|
7°
|
5°
|
| 300m |
7°
|
7°
|
7°
|
8°
|
8°
|
7°
|
| Valley |
8°
|
8°
|
8°
|
10°
|
10°
|
8°
|
| Freezing Level |
1,500m
|
1,500m
|
1,800m
|
1,600m
|
1,200m
|
1,100m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-1°
|
-1°
|
-1°
|
1°
|
1°
|
-1°
|
| 300m |
3°
|
3°
|
3°
|
5°
|
6°
|
4°
|
| Valley |
5°
|
4°
|
5°
|
7°
|
7°
|
5°
|
Additional weather information
Meteorologist's view
Winds may be a touch stronger on higher routes than indicated in table. Feeling cold with wind chill.
Weather
A mostly dry and cloudy start with a few outbreaks of rain possible before a band of heavier and more persistent rain spreads eastwards through in the morning. This clears to leave a largely dry afternoon and evening with a few bright and clear spells developing. Strong winds may reach gale force on higher summits.
Chance of cloud-free hill tops
10% for much of the day, improving to 60% in the evening.
Low cloud and visibility
Widespread low cloud with base 400-600m for much of the day but cloud breaking up through the evening with cloud clearing from many summits. Poor visibility in cloud and rain, good outside of cloud.
Mountain weather information
Weather
Dry but cloudy start. Staying cloudy through the day with some outbreaks of rain developing. Light winds at first strengthening through the day, these may reach strong over higher routes.
Chance of cloud-free hill tops
80% in the morning, falling to 40% later.
Maximum wind speed expected
Northwesterly 20-25mph gusting 25-35mph.
Temperature
- At 700m Plus 3C falling to 0C.
- Valley Plus 7-8C.
- Freezing level 1100m falling to 500m later.
Low cloud and visibility
Summits largely clear and good visibilities with only a few patches of low cloud with base 400-600m in the morning. Becoming somewhat more extensive later in the day. Visibility poor in cloud and rain but very good outside of cloud.
Mountain weather information
Sat 28 Feb
Sunrise:
Sunset:
Cloudy with some rain possible in the early morning. Otherwise dry with sunny spells. Breezy northwesterly winds easing, then becoming southerly and stronger again later. Freezing level around 600m, falling to 300m for a time.
Sun 1 Mar
Sunrise:
Sunset:
Cloudy with rain for much of the day, which may be heavy at times. Strong to gale force southwesterly winds. Freezing level above summits.
Mon 2 Mar
Sunrise:
Sunset:
Cloudy with rain at first but becoming dry later. Strong westerly winds. Freezing level above summits.
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.