Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for transition to less cold weather through Friday. High confidence in unsettled weather through the period, but low confidence in details.
This evening forecast
Small chance of the odd shower possible at first, which would be wintry above 300m. Otherwise dry with clear summits. Feeling bitterly cold. Northwest winds 20-25mph on the summits.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
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.
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.
Mountain weather forecast
Dry but cold. Windy with cloud and rain 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% | 10% | 80% |
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 |
NW
16
|
NW
11
|
NW
11
|
W
7
|
SW
12
|
SW
19
|
SW
23
|
SW
28
|
| 300m |
NW
11
|
NW
8
|
NW
8
|
W
6
|
SW
7
|
SW
9
|
SW
11
|
SW
14
|
| Valley |
NW
10
|
NW
7
|
NW
7
|
W
6
|
SW
6
|
SW
8
|
SW
9
|
SW
12
|
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 | 22 | 14 | 14 | 9 | 16 | 27 | 33 | 40 |
| 300m | 18 | 12 | 12 | 8 | 11 | 17 | 21 | 25 |
| Valley | 16 | 11 | 11 | 9 | 11 | 16 | 20 | 24 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-2°
|
-2°
|
-2°
|
-1°
|
1°
|
0°
|
0°
|
0°
|
| 300m |
-1°
|
0°
|
-1°
|
0°
|
3°
|
2°
|
1°
|
2°
|
| Valley |
0°
|
0°
|
0°
|
1°
|
4°
|
3°
|
2°
|
3°
|
| Freezing Level |
200m
|
200m
|
200m
|
300m
|
400m
|
300m
|
400m
|
900m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-8°
|
-6°
|
-6°
|
-4°
|
-4°
|
-6°
|
-8°
|
-8°
|
| 300m |
-6°
|
-5°
|
-5°
|
-3°
|
0°
|
-2°
|
-3°
|
-3°
|
| Valley |
-4°
|
-4°
|
-4°
|
-2°
|
1°
|
0°
|
-1°
|
-1°
|
Additional weather information
Meteorologist's view
Feeling bitterly cold despite the brighter conditions so suitable clothing is advised. Note the strengthening winds will make for fairly arduous walking on exposed terrain with buffeting of clothing and balance may be affected at times.
Weather
Dry but cold through the day. Good sunny spells in the morning but sunshine becoming hazier through the afternoon as high level cloud spreads in from the west. Lowering cloud and outbreaks of rain in the evening. Strengthening southwest winds with summit gales developing through the evening.
Chance of cloud-free hill tops
90% or higher.
Low cloud and visibility
Summits clear and good visibilities throughout the day. Cloud around 500-700m and visibilities falling moderate as rain spreads east through the late evening.
Mountain weather information
Weather
Rain clearing east in the early hours. Then bright spells and chance of the odd shower in the morning, before widespread cloud and rain spread east through the afternoon with strengthening winds.
Chance of cloud-free hill tops
80% in morning, falling to 30% through afternoon
Maximum wind speed expected
Southwest summit winds increasing to 40-50mph through the evening.
Temperature
- At 700m 0C rising to plus 3C.
- Valley Plus 3C rising to plus 7C
- Freezing level 1000-1200m
Low cloud and visibility
Largely clear with good visibility in the morning, though some patches of cloud or valley fog over lower slopes. Widespread cloud down to 500-700m spreads east through the afternoon and visibilities falling moderate or poor.
Mountain weather information
Sun 23 Nov
Sunrise:
Sunset:
Showers or longer spells of rain. Strong winds. Freezing level around 1000-1200m.
Mon 24 Nov
Sunrise:
Sunset:
Showers or perhaps longer spells of rain. Fresh to strong winds. Freezing level around 800-1000m.
Tue 25 Nov
Sunrise:
Sunset:
Bright spells and scattered showers. Light winds. Freezing level around 800-1000m.
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.