Mourne Mountains Mountain weather forecast table
Confidence
High for much of Tuesday, but low for timing of rain Tuesday evening or night. High for strong winds on Thursday, but low for amount and timing of any rain. High confidence for a change to colder showery conditions Friday and Saturday, but low for details.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Poor Visibility
Mountain weather forecast
Dry and brightening though the morning. Afternoon showers. Heavy evening rain.
06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|
Weather (at 700m) |
||||||
Chance of precipitation (at 700m) |
<05% | <05% | 40% | 40% | 70% | 90% |
06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|
600m |
W
25
|
W
17
|
W
12
|
NW
5
|
E
8
|
E
11
|
300m |
W
10
|
W
9
|
W
8
|
NW
3
|
E
4
|
E
7
|
Valley |
W
9
|
W
8
|
W
7
|
NW
3
|
E
4
|
E
6
|
06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|
600m | 35 | 23 | 17 | 8 | 12 | 16 |
300m | 20 | 16 | 13 | 5 | 8 | 11 |
Valley | 21 | 16 | 13 | 6 | 7 | 11 |
06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|
600m |
5°
|
5°
|
7°
|
8°
|
6°
|
5°
|
300m |
7°
|
8°
|
10°
|
10°
|
8°
|
7°
|
Valley |
8°
|
9°
|
11°
|
11°
|
9°
|
8°
|
Freezing Level |
1,300m
|
1,300m
|
1,300m
|
1,400m
|
1,400m
|
1,400m
|
06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|
600m |
-1°
|
1°
|
3°
|
6°
|
3°
|
2°
|
300m |
4°
|
5°
|
8°
|
10°
|
7°
|
5°
|
Valley |
6°
|
7°
|
10°
|
11°
|
8°
|
6°
|
Additional weather information
Meteorologist's view
Some uncertainty in timing of rain spreading north in the evening.
Weather
Overnight rain soon clears in the early hours with the odd clear spell. Then a generally cloudy, dry morning. Brighter spells develop from late morning, but a few sharp showers also break out around midday and early afternoon. Cloud thickening and lowering through the afternoon with further showers possible. More persistent and heavy rain spreads north in the evening and start of the night.
Chance of cloud-free hill tops
40% rising to 80% in the morning. Falling to nil in the evening.
Low cloud and visibility
Often poor visibility in patchy cloud above 400-600m early to mid-morning. Visibility becoming good as cloud lifts above the summits by late morning. Some temporary, localised reductions in visibility in showers. More general deterioration to very poor visibility by evening in heavy rain and extensive cloud down to lower slopes.
Mountain weather information
Weather
Extensive low cloud and often heavy rain through the early hours. Rain clears east around dawn, although hill fog taking a little longer to clear. Then a dry bright day with sunny spells. Dry but cloudy overnight.
Chance of cloud-free hill tops
20% early morning, soon becoming 90% or more.
Maximum wind speed expected
North 15 gusting 20 mph, easing early afternoon. Becoming southwest 5-10 mph later afternoon, but increasing to 15 gusting 25 mph early in the night.
Temperature
- At 700m Plus 2 Celsius, rising to 5 Celsius.
- Valley Plus 5 Celsius, rising to 11 Celsius.
- Freezing level Above the summits.
Low cloud and visibility
Extensive cloud, bases around 400m early hours and to start the day. Cloud dispersing from around mid-morning to leave very good visibility.
Mountain weather information
Thu 21 Mar
Cloudy with strong to gale force southwest winds. Rain and hill fog for a time. Dry and clearer later, but winds still strong.
Fri 22 Mar
Strong, gusty, westerly winds and scattered blustery showers, turning heavier through the day with a risk of thunder. Showers turning to snow on higher ground in the afternoon as freezing level drops below the summits.
Sat 23 Mar
Cold, with strong north or northwest winds and scattered showers, wintery on the tops. Perhaps turning dry with winds easing later in the day.
Summit specific forecast
Mountain summit forecast map
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.