Mountain weather
Mourne Mountains
Confidence
High for rather cold and showery through the coming days, but lower from Friday due to uncertainties in arrival of an Atlantic frontal system.
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This eveningSunrise:Sunset:
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Tue 12 MaySunrise:Sunset:
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Wed 13 MaySunrise:Sunset:
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Further outlook
This evening forecast
Dry with late sunshine then largely clear through the evening. Occasionally fresh northwesterly winds easing.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Poor Visibility
Strong Sunlight
Gales
Thunderstorms
Mountain weather forecast
Morning rain then afternoon showers. Cold with strengthening westerly winds
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Time
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Time |
00:00
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03:00
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06:00
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09:00
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12:00
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15:00
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18:00
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21:00
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|---|---|---|---|---|---|---|---|---|---|
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Weather
(at 800m)
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Weather symbols | ||||||||
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Chance of
precipitation (at 800m)
|
Chance of precipitation |
10%
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10%
|
50%
|
30%
|
20%
|
10%
|
20%
|
40%
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Wind direction and speed
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Time
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Time |
00:00
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03:00
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06:00
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09:00
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12:00
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15:00
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18:00
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21:00
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|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | W 15mph knots
W
15mph |
W 25mph knots
W
25mph |
W 28mph knots
W
28mph |
NW 28mph knots
NW
28mph |
NW 27mph knots
NW
27mph |
NW 27mph knots
NW
27mph |
W 28mph knots
W
28mph |
W 29mph knots
W
29mph |
|
300m
|
300m | W 6mph knots
W
6mph |
W 11mph knots
W
11mph |
W 15mph knots
W
15mph |
NW 19mph knots
NW
19mph |
NW 18mph knots
NW
18mph |
NW 19mph knots
NW
19mph |
W 19mph knots
W
19mph |
W 18mph knots
W
18mph |
|
Valley
|
Valley | SW 3mph knots
SW
3mph |
W 10mph knots
W
10mph |
W 13mph knots
W
13mph |
NW 17mph knots
NW
17mph |
NW 16mph knots
NW
16mph |
NW 17mph knots
NW
17mph |
W 17mph knots
W
17mph |
W 15mph knots
W
15mph |
Wind gust
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Time
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Time |
00:00
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03:00
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06:00
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09:00
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12:00
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15:00
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18:00
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21:00
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|---|---|---|---|---|---|---|---|---|---|
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600m
|
600m | 22mph | 35mph | 39mph | 41mph | 40mph | 40mph | 41mph | 41mph |
|
300m
|
300m | 11mph | 21mph | 27mph | 32mph | 32mph | 32mph | 32mph | 31mph |
|
Valley
|
Valley | 10mph | 21mph | 25mph | 31mph | 30mph | 31mph | 30mph | 28mph |
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Time
|
Time |
00:00
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03:00
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06:00
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09:00
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12:00
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15:00
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18:00
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21:00
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|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 3 degrees Celsius 3°C | 4 degrees Celsius 4°C | 4 degrees Celsius 4°C | 5 degrees Celsius 5°C | 7 degrees Celsius 7°C | 8 degrees Celsius 8°C | 6 degrees Celsius 6°C | 4 degrees Celsius 4°C |
|
300m
|
300m | 5 degrees Celsius 5°C | 6 degrees Celsius 6°C | 6 degrees Celsius 6°C | 8 degrees Celsius 8°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 9 degrees Celsius 9°C | 7 degrees Celsius 7°C |
|
Valley
|
Valley | 5 degrees Celsius 5°C | 7 degrees Celsius 7°C | 8 degrees Celsius 8°C | 10 degrees Celsius 10°C | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 10 degrees Celsius 10°C | 8 degrees Celsius 8°C |
| Freezing Level | Freezing Level |
1400m
|
1300m
|
1500m
|
1000m
|
1000m
|
1100m
|
1100m
|
1100m
|
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | -1 degrees Celsius -1°C | -2 degrees Celsius -2°C | -2 degrees Celsius -2°C | 0 degrees Celsius 0°C | 2 degrees Celsius 2°C | 3 degrees Celsius 3°C | 0 degrees Celsius 0°C | -2 degrees Celsius -2°C |
|
300m
|
300m | 2 degrees Celsius 2°C | 2 degrees Celsius 2°C | 2 degrees Celsius 2°C | 4 degrees Celsius 4°C | 7 degrees Celsius 7°C | 7 degrees Celsius 7°C | 5 degrees Celsius 5°C | 2 degrees Celsius 2°C |
|
Valley
|
Valley | 4 degrees Celsius 4°C | 4 degrees Celsius 4°C | 4 degrees Celsius 4°C | 6 degrees Celsius 6°C | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 7 degrees Celsius 7°C | 4 degrees Celsius 4°C |
| Freezing Level | Freezing Level |
1400m
|
1300m
|
1500m
|
1000m
|
1000m
|
1100m
|
1100m
|
1100m
|
Additional weather information
Meteorologist's view
Gusts around 50mph over higher summits and ridges through the afternoon. Rather cold, despite the spring sunshine.
Weather
Mainly dry through the early hours but increasing cloud will bring outbreaks of rain southeast towards dawn. Then a cloudy start with outbreaks of mostly light rain soon clearing with sunny spells and a few showers developing by midday. A bright afternoon with sunny spells and a few showers, the showers becoming heavier and more frequent through the evening, perhaps with thunder and hail.
Chance of cloud-free hill tops
Around 25% at first becoming close to 100% by early afternoon, but chances fall to 75% through the evening.
Low cloud and visibility
Periods of cloud above 600-750m, with patches below, the cloud lifting and breaking so by early afternoon little or no cloud is expected below the summits, cloud then becoming more occasional above 600-750m in the evening. Away from cloud, visibility several kilometres in early rain, then becoming very good by late morning, but several kilometres in any heavier showers later.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Weather
A rather cold day with clear or sunny spells and frequent showers. The showers heavy at times with a risk of hail and thunder, perhaps falling as sleet on the highest summits. The showers becoming less frequent through the evening.
Chance of cloud-free hill tops
Around 40%
Maximum wind speed expected
Westerly veering Northwesterly 25-30mph, with gusts around 50mph over summits and ridges.
Temperature
- At 700m Around plus 3 Celsius
- Valley Around plus 6 or 7 Celsius at dawn rising to plus 12 or 13 Celsius
- Freezing level Above the summits.
Low cloud and visibility
Occasional or periods of cloud above 600-750m. Away from cloud visibility very good falling to several kilometres in showers and perhaps a kilometre in hail and sleet.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Thu 14 May
Clear or sunny spells and further showers, less frequent and generally lighter than Wednesday. Strong northerly or northwesterly winds easing. Freezing level above the summits.
Fri 15 May
A mainly dry day but rather cloudy with limited bright or sunny spells. Fresh northerly winds easing. Freezing level above summits.
Sat 16 May
A dry, bright start with some sunny spells but increasing cloud brings outbreaks of rain for the afternoon. Freshening southerly winds. Freezing level above the summits.
Summit specific forecast
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.