Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for unsettled conditions through this period with rain and showers at times. Moderate confidence for the rainfall detail through the period.
This evening forecast
The evening will be dry with clear spells but cloud will soon thicken with outbreaks of rain, some heavy, following northeast. Near gale south summit winds.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Severe Chill Effect
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.
Mountain weather forecast
Cloudy with outbreaks of rain, some heavy, clearing from early morning with the near gale south summit wind turning southwesterly.
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
|
|
Chance of precipitation (at 700m) |
90% | 90% | 70% | 20% | <05% | <05% | <05% | <05% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
S
33
|
S
31
|
W
29
|
W
30
|
W
26
|
W
22
|
SW
19
|
SW
23
|
| 300m |
S
17
|
S
17
|
W
18
|
W
15
|
W
13
|
W
11
|
SW
9
|
SW
11
|
| Valley |
S
14
|
S
15
|
W
17
|
W
13
|
W
11
|
W
9
|
SW
7
|
SW
10
|
Wind gust (mph)
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m | 46 | 42 | 40 | 41 | 35 | 30 | 26 | 32 |
| 300m | 31 | 29 | 29 | 26 | 22 | 19 | 17 | 20 |
| Valley | 29 | 29 | 29 | 26 | 22 | 18 | 15 | 20 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
4°
|
4°
|
1°
|
0°
|
1°
|
1°
|
0°
|
0°
|
| 300m |
6°
|
6°
|
3°
|
2°
|
3°
|
3°
|
2°
|
2°
|
| Valley |
7°
|
6°
|
3°
|
3°
|
4°
|
4°
|
3°
|
3°
|
| Freezing Level |
1,300m
|
1,100m
|
800m
|
700m
|
700m
|
700m
|
700m
|
700m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-3°
|
-3°
|
-7°
|
-7°
|
-6°
|
-6°
|
-6°
|
-6°
|
| 300m |
2°
|
1°
|
-3°
|
-2°
|
-2°
|
-1°
|
-1°
|
-2°
|
| Valley |
4°
|
3°
|
-2°
|
-1°
|
0°
|
1°
|
0°
|
-1°
|
Additional weather information
Meteorologist's view
Rain and low cloud will lower the visibility and hamper navigation. It will feel very cold in the strong wind, appropriate clothing is advised.
Weather
Low cloud and outbreaks of rain, heavy at times, continues overnight and into the morning. The rain will clear north in the early morning with the cloud lifting and breaking to give sunny spells through the afternoon.
Chance of cloud-free hill tops
20% increasing 60% by the afternoon
Low cloud and visibility
Extensive cloud with base 300-500m at first will break and lift during the morning becoming patchy 600-700m by the afternoon. The visibility poor in rain, very poor in heavy falls becoming good.
Mountain weather information
Weather
Cloudy with the odd shower at first. Cloud will soon thicken with outbreaks of locally heavy rain following northeast from late morning. This rain will clear north from the evening.
Chance of cloud-free hill tops
30%
Maximum wind speed expected
Southeast 35-40mph gust 50mph.
Temperature
- At 700m Plus 3C.
- Valley Plus 3C rising plus 7C.
- Freezing level Above the summits.
Low cloud and visibility
Broken cloud 500-700m will spread northeast from the morning. The visibility will fall poor in rain.
Mountain weather information
Sat 6 Dec
Sunrise:
Sunset:
Cloudy with frequent showers. Light southwest summit wind. Freezing level above the summits.
Sun 7 Dec
Sunrise:
Sunset:
Frequent showers or longer periods of rain, heavy at times, clearing in the afternoon. Strong southwest summit wind. Freezing level above the summits.
Mon 8 Dec
Sunrise:
Sunset:
Sunny spells with early showers soon clearing. Strong southwest summit wind. Freezing level 1000m.
Updated at:
Summit specific forecast
Mountain summit forecast map
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Key
Mountain summits
Other points of interest
Cluster of multiple stations
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.