Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for unsettled and showery conditions for most of the period. Low confidence for later Wednesday and for Thursday for the track of a low pressure system near Northern Ireland.
This evening forecast
Mainly dry at first but becoming cloudy with some showers spreading east. Fresh westerly winds on the tops.
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.
Mountain weather forecast
Cloudy with showers in morning, brighter in afternoon. Windy on the tops with gales for a time.
| 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) |
10% | 10% | 40% | 70% | 70% | 40% | 20% | 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
24
|
W
25
|
W
26
|
W
31
|
NW
38
|
NW
30
|
W
24
|
W
25
|
| 300m |
W
11
|
W
12
|
W
13
|
W
17
|
NW
23
|
NW
18
|
W
12
|
W
11
|
| Valley |
W
9
|
W
9
|
W
11
|
W
14
|
NW
20
|
NW
15
|
W
10
|
W
10
|
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 | 34 | 35 | 43 | 52 | 42 | 34 | 35 |
| 300m | 20 | 21 | 23 | 29 | 38 | 30 | 21 | 22 |
| Valley | 19 | 20 | 23 | 28 | 36 | 29 | 22 | 22 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
9°
|
7°
|
8°
|
8°
|
7°
|
7°
|
6°
|
6°
|
| 300m |
10°
|
9°
|
10°
|
10°
|
10°
|
10°
|
9°
|
7°
|
| Valley |
11°
|
10°
|
11°
|
10°
|
11°
|
12°
|
10°
|
8°
|
| Freezing Level |
2,200m
|
1,900m
|
1,900m
|
2,100m
|
1,800m
|
1,600m
|
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 |
4°
|
2°
|
3°
|
2°
|
1°
|
2°
|
1°
|
0°
|
| 300m |
8°
|
7°
|
7°
|
6°
|
6°
|
7°
|
6°
|
4°
|
| Valley |
9°
|
8°
|
8°
|
8°
|
8°
|
9°
|
8°
|
6°
|
Additional weather information
Meteorologist's view
Strong winds will make it feel cold on the tops. A risk of being blown off balance by gusts over 50mph on high summits and ridges during the middle of the day.
Weather
A few showers overnight. A mostly cloudy morning with showers becoming frequent and possibly heavy. Showers will slowly die out during the afternoon with bright spells developing. Mainly dry with clear spells in evening.
Chance of cloud-free hill tops
20% in morning becoming 80% in afternoon.
Low cloud and visibility
Patchy fog in the valleys and on the summits overnight. Cloud will become extensive during the morning with bases 400 to 600m, then lifting and breaking through the afternoon. Away from cloud, mainly good visibility, occasionally poor in showers.
Mountain weather information
Weather
Dry with clear spells overnight. Mainly dry during the day with sunny spells and just a few isolated showers. A small chance of wet and windy weather arriving in the evening.
Chance of cloud-free hill tops
80%.
Maximum wind speed expected
West or Southwest 10-15mph.
Temperature
- At 700m Plus 3C rising to 7C.
- Valley Plus 6C rising to 13C.
- Freezing level Above summits.
Low cloud and visibility
Mainly good visibility. Locally a few km in any showers and some patchy fog on high summits.
Mountain weather information
Thu 23 Oct
Sunrise:
Sunset:
A band of rain followed by showers, turning heavy at times and perhaps wintry on the highest summits. Gale force winds northwest winds, perhaps severe gale for a time. Freezing level above summits. Low confidence.
Fri 24 Oct
Sunrise:
Sunset:
Bright spells and a few showers, wintry later above 700m. Feeling colder with strong northwest winds at height. Freezing level above summits.
Sat 25 Oct
Sunrise:
Sunset:
Mainly dry with sunny spells and the odd shower, wintry above 600m. Feeling cold with strong north winds at height. Freezing level 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.