Mountain weather
Mourne Mountains
Confidence
Unsettled conditions continuing with high confidence for a transition to cooler more showery conditions later in the week. Uncertainties in amount of cloud and rain on Monday and details of showers from Tuesday onwards, keep up to date with the latest forecast.
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Mon 17 AugSunrise:Sunset:
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Tue 18 AugSunrise:Sunset:
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Further outlook
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Poor Visibility
Heavy Persistent Rain
Mountain weather forecast
Cloudy at first with rain spreading south during the afternoon, turning heavy for a time in the evening, poor visibility at times, freshening winds.
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
Weather
(at 800m)
|
Weather symbols | ||||||
|
Chance of
precipitation (at 800m)
|
Chance of precipitation |
30%
|
30%
|
60%
|
70%
|
80%
|
80%
|
Wind direction and speed
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
600m
|
600m | NW 14mph knots
NW
14mph |
NW 13mph knots
NW
13mph |
W 10mph knots
W
10mph |
W 12mph knots
W
12mph |
SW 18mph knots
SW
18mph |
SW 26mph knots
SW
26mph |
|
300m
|
300m | NW 7mph knots
NW
7mph |
NW 8mph knots
NW
8mph |
W 7mph knots
W
7mph |
W 8mph knots
W
8mph |
SW 8mph knots
SW
8mph |
SW 11mph knots
SW
11mph |
|
Valley
|
Valley | NW 8mph knots
NW
8mph |
NW 8mph knots
NW
8mph |
W 6mph knots
W
6mph |
W 6mph knots
W
6mph |
SW 6mph knots
SW
6mph |
SW 9mph knots
SW
9mph |
Wind gust
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
600m
|
600m | 20mph | 17mph | 14mph | 16mph | 25mph | 36mph |
|
300m
|
300m | 14mph | 12mph | 11mph | 13mph | 15mph | 22mph |
|
Valley
|
Valley | 15mph | 13mph | 11mph | 12mph | 15mph | 21mph |
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
600m
|
600m | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 13 degrees Celsius 13°C |
|
300m
|
300m | 14 degrees Celsius 14°C | 15 degrees Celsius 15°C | 16 degrees Celsius 16°C | 16 degrees Celsius 16°C | 16 degrees Celsius 16°C | 14 degrees Celsius 14°C |
|
Valley
|
Valley | 15 degrees Celsius 15°C | 16 degrees Celsius 16°C | 17 degrees Celsius 17°C | 18 degrees Celsius 18°C | 17 degrees Celsius 17°C | 15 degrees Celsius 15°C |
| Freezing Level | Freezing Level |
3200m
|
3300m
|
4000m
|
4000m
|
3800m
|
3600m
|
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
600m
|
600m | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 12 degrees Celsius 12°C | 11 degrees Celsius 11°C | 9 degrees Celsius 9°C |
|
300m
|
300m | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 15 degrees Celsius 15°C | 15 degrees Celsius 15°C | 15 degrees Celsius 15°C | 13 degrees Celsius 13°C |
|
Valley
|
Valley | 14 degrees Celsius 14°C | 15 degrees Celsius 15°C | 17 degrees Celsius 17°C | 17 degrees Celsius 17°C | 17 degrees Celsius 17°C | 14 degrees Celsius 14°C |
| Freezing Level | Freezing Level |
3200m
|
3300m
|
4000m
|
4000m
|
3800m
|
3600m
|
Additional weather information
Meteorologist's view
Light winds in the morning, freshening later in the day. A damp afternoon and evening on the hills.
Weather
A cloudy morning with low cloud layers over many of the hills, cloud lifting during the morning with the chance of some brightness at times. During the afternoon rain will spread south over the area, starting mainly light and intermittent but turning heavier during the evening and becoming persistent.
Chance of cloud-free hill tops
50% during the morning, falling to 20% later.
Low cloud and visibility
Low cloud layers above 400m will be extensive at first in the morning, cloud bases will lift and become more scattered for much of the day. Cloud will lower and fill again during the afternoon as rain spreads in with broken layers above 400m by late afternoon. Visibility will be moderate at first in the morning but becoming good by late morning. Visibility will reduce gradually in the afternoon as it becomes wetter and will be poor at times in the evening.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Weather
Rain clearing early on Tuesday morning with the morning tending to brighten up with some sunny spells, showers will develop. Freshening westerly winds will move showers through quite quickly. Feeling cooler out on the hills.
Chance of cloud-free hill tops
40% early in the day, improving to 80%.
Maximum wind speed expected
Southwest 15mph increasing 20-25mph later.
Temperature
- At 700m Plus 9 Celsius.
- Valley Plus 11 rising to 18 Celsius.
- Freezing level Above all summits.
Low cloud and visibility
Early low cloud layers will lift and break with scattered low cloud bases above 600m. As showers develop low cloud may gather again above 600m for a time as a shower moves through. Visibility will become very good during the morning, only dipping moderate in any heavier afternoon showers.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Wed 19 Aug
Cloudy at times but a few bright or sunny spells developing. A risk of heavy, slow moving, possibly thundery afternoon showers, keep an eye on the latest forecast.
Thu 20 Aug
Feeling cooler despite the sunshine, scattered showers developing, brisk northerly winds.
Fri 21 Aug
Northerly winds and some sunshine with the risk of showers again.
Mountain weather information
Wed 19 Aug
Cloudy at times but a few bright or sunny spells developing. A risk of heavy, slow moving, possibly thundery afternoon showers, keep an eye on the latest forecast.
Thu 20 Aug
Feeling cooler despite the sunshine, scattered showers developing, brisk northerly winds.
Fri 21 Aug
Northerly winds and some sunshine with the risk of showers again.
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.