Mountain weather
Mourne Mountains
Confidence
High confidence in the general evolution and for changeable weather over the coming days.
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This eveningSunrise:Sunset:
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Tue 8 SepSunrise:Sunset:
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Wed 9 SepSunrise:Sunset:
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Further outlook
This evening forecast
A few heavy showers at first with a small chance of hail and lightning but becoming mostly dry with some clear spells through the evening. Strong west to southwest winds with mean speeds around 35mph and gusts perhaps reaching 50-60mph at times.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Gales
Strong Sunlight
Severe Chill Effect
Poor Visibility
Mountain weather forecast
Bright spells and scattered heavy showers. Strong to gale 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 600m)
|
Weather symbols | ||||||||
|
Chance of
precipitation (at 600m)
|
Chance of precipitation |
10%
|
10%
|
30%
|
70%
|
50%
|
50%
|
40%
|
20%
|
Wind direction and speed
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | W 33mph knots
W
33mph |
W 34mph knots
W
34mph |
W 36mph knots
W
36mph |
W 34mph knots
W
34mph |
NW 33mph knots
NW
33mph |
NW 33mph knots
NW
33mph |
NW 34mph knots
NW
34mph |
NW 34mph knots
NW
34mph |
|
300m
|
300m | W 11mph knots
W
11mph |
W 14mph knots
W
14mph |
W 16mph knots
W
16mph |
W 18mph knots
W
18mph |
W 19mph knots
W
19mph |
NW 19mph knots
NW
19mph |
NW 18mph knots
NW
18mph |
NW 17mph knots
NW
17mph |
|
Valley
|
Valley | W 9mph knots
W
9mph |
W 11mph knots
W
11mph |
W 13mph knots
W
13mph |
W 15mph knots
W
15mph |
W 16mph knots
W
16mph |
NW 16mph knots
NW
16mph |
NW 14mph knots
NW
14mph |
NW 13mph knots
NW
13mph |
Wind gust
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 47mph | 48mph | 50mph | 48mph | 46mph | 47mph | 47mph | 47mph |
|
300m
|
300m | 24mph | 27mph | 30mph | 32mph | 33mph | 33mph | 32mph | 31mph |
|
Valley
|
Valley | 26mph | 27mph | 29mph | 31mph | 32mph | 32mph | 30mph | 28mph |
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 8 degrees Celsius 8°C | 7 degrees Celsius 7°C | 7 degrees Celsius 7°C | 8 degrees Celsius 8°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C |
|
300m
|
300m | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 11 degrees Celsius 11°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C |
|
Valley
|
Valley | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 12 degrees Celsius 12°C | 14 degrees Celsius 14°C | 15 degrees Celsius 15°C | 13 degrees Celsius 13°C | 11 degrees Celsius 11°C |
| Freezing Level | Freezing Level |
1500m
|
1700m
|
1800m
|
1900m
|
1800m
|
1800m
|
1800m
|
1700m
|
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 2 degrees Celsius 2°C | 1 degrees Celsius 1°C | 1 degrees Celsius 1°C | 2 degrees Celsius 2°C | 5 degrees Celsius 5°C | 5 degrees Celsius 5°C | 4 degrees Celsius 4°C | 2 degrees Celsius 2°C |
|
300m
|
300m | 7 degrees Celsius 7°C | 6 degrees Celsius 6°C | 6 degrees Celsius 6°C | 7 degrees Celsius 7°C | 9 degrees Celsius 9°C | 10 degrees Celsius 10°C | 8 degrees Celsius 8°C | 7 degrees Celsius 7°C |
|
Valley
|
Valley | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 9 degrees Celsius 9°C | 11 degrees Celsius 11°C | 12 degrees Celsius 12°C | 10 degrees Celsius 10°C | 9 degrees Celsius 9°C |
| Freezing Level | Freezing Level |
1500m
|
1700m
|
1800m
|
1900m
|
1800m
|
1800m
|
1800m
|
1700m
|
Additional weather information
Meteorologist's view
Gusts of 50mph or so will give difficult walking conditions with a risk of being blown off balance. Navigation could be challenging with energy output significantly increased when walking into the wind. These strong winds combined with low temperatures at height will bring significant wind chill and drenching conditions at times.
Weather
Mostly dry through the early hours with some clear spells and a few showers. A band of showery rain spreads southeast through the morning, then drier again with further bright or sunny spells and a scattering of showers, though less frequent and heavy than in the morning. Strong west veering northwesterly winds with gale-force gusts over the summits.
Chance of cloud-free hill tops
Mostly 75%, falling 40% for a time in the morning.
Low cloud and visibility
Largely clear summits and good or excellent visibilities for much of the day with just the odd patch of cloud around summit height possible. Cloud becomes quite extensive down to 500-700m for a time in the morning with associated visibilities falling moderate or poor.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Weather
Much improved conditions compared to Tuesday. Mostly dry with good bright or sunny spells and mostly light winds, chance of the odd light shower in the early morning.
Chance of cloud-free hill tops
75% early morning, rising to 90% or higher for much of the day.
Maximum wind speed expected
Northwest 20-30mph in the early morning, easing through the morning.
Temperature
- At 700m Plus 5C rising to plus 8C by day.
- Valley Plus 9C rising to plus 18C by day.
- Freezing level Above summits.
Low cloud and visibility
Largely clear summits and good or excellent visibilities. Some patches of cloud around 500-700m in the early hours but these lifting and breaking soon after dawn.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Thu 10 Sep
Showery outbreaks of rain spread east through the day along with fresh to strong southwest winds. Freezing level above summits.
Fri 11 Sep
Mostly dry with sunny spells. Fresh to moderate westerly winds. Freezing level above summits.
Sat 12 Sep
Rain and cloud soon spreading east. Fresh to strong southwest winds. Freezing level above 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.