Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for drier conditions Saturday followed by a south-easterly flow for the rest of the period.
This evening forecast
The evening will continue dry but cloudy with clear spells and a strong south summit wind.
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.
Mountain weather forecast
Dry and bright becoming cloudy with rain from the evening. Gale southeast summit 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) |
00% | 00% | 00% | 00% | 00% | 00% | 60% | 70% |
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 |
S
24
|
S
31
|
S
37
|
S
42
|
S
42
|
SE
39
|
SE
40
|
SE
38
|
| 300m |
S
7
|
S
15
|
S
18
|
S
22
|
S
24
|
SE
22
|
SE
23
|
SE
21
|
| Valley |
S
4
|
S
12
|
S
15
|
S
20
|
S
21
|
SE
20
|
SE
21
|
SE
19
|
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 | 33 | 43 | 51 | 58 | 58 | 54 | 56 | 53 |
| 300m | 17 | 28 | 33 | 39 | 40 | 38 | 39 | 37 |
| Valley | 16 | 26 | 32 | 38 | 40 | 37 | 38 | 36 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
3°
|
4°
|
5°
|
5°
|
4°
|
4°
|
4°
|
3°
|
| 300m |
5°
|
6°
|
7°
|
7°
|
7°
|
7°
|
6°
|
6°
|
| Valley |
6°
|
7°
|
8°
|
8°
|
8°
|
8°
|
8°
|
7°
|
| Freezing Level |
1,100m
|
1,200m
|
1,200m
|
1,200m
|
1,100m
|
1,200m
|
1,100m
|
1,100m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-3°
|
-2°
|
-2°
|
-3°
|
-3°
|
-3°
|
-4°
|
-4°
|
| 300m |
3°
|
2°
|
3°
|
2°
|
2°
|
2°
|
1°
|
0°
|
| Valley |
5°
|
4°
|
4°
|
4°
|
4°
|
4°
|
3°
|
2°
|
Additional weather information
Meteorologist's view
The strong wind will make it feel very cold, particularly on exposed ridges and summits.
Weather
Much of the day will be dry with sunny spells. Cloud will increase through the afternoon with outbreaks of rain following from the evening.
Chance of cloud-free hill tops
80%
Low cloud and visibility
There will be some patchy cloud with the base close to or above the summits and the visibility mainly good. Cloud will increase to broken with base lowering to 400-600m from the evening.
Mountain weather information
Weather
There will be sunny spells with the chance of an odd shower during the morning. It will become cloudy through the afternoon with outbreaks of rain spreading north from the evening.
Chance of cloud-free hill tops
60% decreasing 30% by the afternoon.
Maximum wind speed expected
Southeast 25-30mph gust 40mph.
Temperature
- At 700m Plus 4C.
- Valley Plus 5C rising plus 9C.
- Freezing level Above the summits.
Low cloud and visibility
Patchy cloud 600-800m will become broken cloud with base 400-600m from the afternoon. The visibility will stay mostly good.
Mountain weather information
Mon 22 Dec
Sunrise:
Sunset:
Cloudy with outbreaks of rain. Fresh southeast summit winds. Freezing level above the summits.
Tue 23 Dec
Sunrise:
Sunset:
Outbreaks of rain beginning to ease through the afternoon, cloudy. Strong southeast summit winds. Freezing level above the summits.
Wed 24 Dec
Sunrise:
Sunset:
Patchy light rain at first otherwise cloudy but dry. Near gale east summit winds. Freezing level 700m.
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.