Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for unsettled through the weekend and into next week but lower for details of cloud and timing of precipitation.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Poor Visibility
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.
Gales
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
Mountain weather forecast
Cloudy with increasing risk of rain. Strong southerly winds, with summit gales
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
10% | 10% | 20% | 30% | 30% | 50% |
Wind direction and speed (mph)
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
S
42
|
S
36
|
S
33
|
S
33
|
S
34
|
S
35
|
| 300m |
S
20
|
S
18
|
S
18
|
S
18
|
S
19
|
S
20
|
| Valley |
S
17
|
S
16
|
S
16
|
S
16
|
S
17
|
S
17
|
Wind gust (mph)
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m | 57 | 50 | 47 | 47 | 49 | 50 |
| 300m | 35 | 32 | 32 | 33 | 34 | 35 |
| Valley | 34 | 32 | 32 | 32 | 33 | 33 |
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
8°
|
8°
|
9°
|
9°
|
10°
|
10°
|
| 300m |
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
| Valley |
12°
|
12°
|
12°
|
13°
|
12°
|
13°
|
| Freezing Level |
3,000m
|
3,000m
|
2,700m
|
2,600m
|
2,600m
|
2,600m
|
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
2°
|
3°
|
4°
|
5°
|
5°
|
5°
|
| 300m |
7°
|
8°
|
8°
|
8°
|
8°
|
8°
|
| Valley |
9°
|
9°
|
10°
|
10°
|
10°
|
10°
|
Additional weather information
Meteorologist's view
Gusts around 60mph expected over ridges and summits, with a significant chill effect over the highest peaks.
Weather
Mostly cloudy but mainly dry overnight. Then a cloudy day, perhaps some brighter spells for a times in the morning, with the risk of outbreaks of mainly light rain increasing through the afternoon and evening.
Chance of cloud-free hill tops
Around 75% at first but falling to close to zero by the middle of the afternoon.
Low cloud and visibility
Occasional cloud above about 600-750m becoming periods or persistent by the middle of the afternoon, with patches developing above about 300-450m in rain. Visibility away from cloud very good, falling to several kilometres in rain.
Mountain weather information
Weather
Another largely cloudy start with outbreaks of rain, becoming drier and brighter for a time through the middle of the day, before rain returns later. The rain turning heavier and more persistent through the evening.
Chance of cloud-free hill tops
Close to zero at first and again from late afternoon, rising to 75% for a time through the middle of the day
Maximum wind speed expected
Southerly 25-35mph with gusts around 60mph over ridges and summits.
Temperature
- At 700m Plus 8 or 9 Celsius
- Valley Plus 11 or 12 Celsius rising to plus 14 or 15 Celsius
- Freezing level Above the summits
Low cloud and visibility
Periods or persistent above 450-600m, with patches below, at first and again later, becoming more occasional above 600-750m for a time through the middle of the day
Mountain weather information
Sun 6 Oct
Sunrise:
Sunset:
Occasionally heavy overnight rain clearing northeast to leave a sunny spells and a few afternoon showers. Strong southeasterly winds veering southwesterly and easing. Freezing level above summits.
Mon 7 Oct
Sunrise:
Sunset:
A bright day with a mix of sunny spells and scattered showers. Occasionally fresh southwesterly winds backing southeasterly. Freezing level above the summits.
Tue 8 Oct
Sunrise:
Sunset:
A few sunny spells but also occasionally heavy, perhaps thundery, showers. Occasionally fresh southeasterly winds. Freezing level above the summits.
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.