Mountain weather
Mourne Mountains
Confidence
High for the general development and for occasionally wet and windy weather. Moderate confidence for timing of rain late Tuesday into Wednesday.
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This eveningSunrise:Sunset:
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Sun 27 SepSunrise:Sunset:
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Mon 28 SepSunrise:Sunset:
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Further outlook
This evening forecast
The odd shower possible at first but otherwise dry with some clear spells through the evening. Cloud mainly above summits but some patches developing around 300m or so on south-facing upslopes. Strengthening southwest winds with speeds 30-35mph and gusts reaching 50mph or so.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Gales
Poor Visibility
Heavy Persistent Rain
Severe Chill Effect
Strong Sunlight
Mountain weather forecast
Heavy rain, strong winds in morning. Sunny spells, some showers later.
|
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%
|
70%
|
≥95%
|
70%
|
20%
|
10%
|
10%
|
Wind direction and speed
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | S 29mph knots
S
29mph |
S 32mph knots
S
32mph |
S 32mph knots
S
32mph |
S 30mph knots
S
30mph |
W 25mph knots
W
25mph |
W 29mph knots
W
29mph |
W 21mph knots
W
21mph |
W 20mph knots
W
20mph |
|
300m
|
300m | S 13mph knots
S
13mph |
S 17mph knots
S
17mph |
S 18mph knots
S
18mph |
S 18mph knots
S
18mph |
W 16mph knots
W
16mph |
W 18mph knots
W
18mph |
W 10mph knots
W
10mph |
W 9mph knots
W
9mph |
|
Valley
|
Valley | S 11mph knots
S
11mph |
S 14mph knots
S
14mph |
S 16mph knots
S
16mph |
S 15mph knots
S
15mph |
W 14mph knots
W
14mph |
W 16mph knots
W
16mph |
W 8mph knots
W
8mph |
W 7mph knots
W
7mph |
Wind gust
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 40mph | 45mph | 45mph | 42mph | 35mph | 41mph | 30mph | 28mph |
|
300m
|
300m | 25mph | 31mph | 31mph | 31mph | 27mph | 31mph | 20mph | 18mph |
|
Valley
|
Valley | 25mph | 29mph | 30mph | 29mph | 26mph | 30mph | 18mph | 16mph |
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 9 degrees Celsius 9°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C | 7 degrees Celsius 7°C |
|
300m
|
300m | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 11 degrees Celsius 11°C | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 10 degrees Celsius 10°C | 8 degrees Celsius 8°C |
|
Valley
|
Valley | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 11 degrees Celsius 11°C | 9 degrees Celsius 9°C |
| Freezing Level | Freezing Level |
2100m
|
2100m
|
2200m
|
2400m
|
2400m
|
1500m
|
1500m
|
1400m
|
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 5 degrees Celsius 5°C | 5 degrees Celsius 5°C | 5 degrees Celsius 5°C | 5 degrees Celsius 5°C | 5 degrees Celsius 5°C | 5 degrees Celsius 5°C | 4 degrees Celsius 4°C | 2 degrees Celsius 2°C |
|
300m
|
300m | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C | 6 degrees Celsius 6°C |
|
Valley
|
Valley | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 8 degrees Celsius 8°C |
| Freezing Level | Freezing Level |
2100m
|
2100m
|
2200m
|
2400m
|
2400m
|
1500m
|
1500m
|
1400m
|
Additional weather information
Meteorologist's view
Note the hazardous and unpleasant conditions in the morning, but notably better weather through the afternoon. Gusts of 50mph and above will give very difficult walking conditions with progress highly impeded and a significant risk of being blown over.
Weather
Widespread cloud and rain spread north from around dawn, clearing northeast around midday. The rain will be heavy at times bringing chilly and drenching conditions and swollen watercourses and possible localised flooding. This accompanied by strong winds with summit gales. Cloud, rain and strong winds clear by afternoon to allow bright or sunny spells and just the chance of the odd shower.
Chance of cloud-free hill tops
25% in morning, rising to >80% by mid-afternoon.
Low cloud and visibility
Quite widespread cloud down to 300-500m spreads northeast in the morning and visibilities poor in outbreaks of heavy rain. This clearing by around midday to leave summits clear with any cloud above, and good or excellent visibilities with good air clarity.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Weather
Mostly dry with good bright or sunny spells through the day. Just the small chance of the odd shower.
Chance of cloud-free hill tops
90% or higher.
Maximum wind speed expected
Southwest backing south, then southeast later, reaching 25-35mph first thing and again later.
Temperature
- At 700m Plus 4C rising to plus 8C by day.
- Valley Plus 8C rising to plus 17C by day.
- Freezing level Above summits.
Low cloud and visibility
The odd patch of cloud around mid-elevations possible in the early morning and late evening but otherwise cloud well above summits and good to excellent visibilities.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Tue 29 Sep
Dry but increasingly cloudy morning. Patchy rain afternoon, heavy later. Widespread southeast gales.
Wed 30 Sep
Bright spells and scattered showers. Southerly summit gales.
Thu 1 Oct
Bright spells and scattered showers. Strong southwest winds.
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.