Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for drier, brighter weather next few days. Lower confidence for details of rain and strengthening winds on Sunday.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.
Thunderstorms
Lightning is a significant mountain hazard which can result in serious injury or death. Mountain terrain often leaves one highly exposed to lightning strikes. Hail may give unpleasant conditions with torrential rain and localised flash flooding also possible, mainly in Summer months.
Mountain weather forecast
Sunny spells. Scattered afternoon showers. Breezy on the tops.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
<05% | 10% | 30% | 40% | 30% | 10% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
W
12
|
W
12
|
W
11
|
NW
18
|
W
15
|
W
24
|
| 300m |
W
5
|
W
7
|
W
5
|
NW
10
|
W
8
|
W
11
|
| Valley |
W
5
|
W
7
|
W
4
|
NW
8
|
W
7
|
W
9
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 18 | 16 | 16 | 26 | 21 | 34 |
| 300m | 11 | 11 | 10 | 18 | 15 | 23 |
| Valley | 12 | 12 | 11 | 17 | 15 | 21 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
9°
|
9°
|
11°
|
10°
|
11°
|
9°
|
| 300m |
10°
|
12°
|
13°
|
13°
|
13°
|
11°
|
| Valley |
10°
|
14°
|
14°
|
14°
|
14°
|
12°
|
| Freezing Level |
1,900m
|
1,900m
|
2,000m
|
2,100m
|
2,000m
|
2,000m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
6°
|
7°
|
8°
|
7°
|
8°
|
6°
|
| 300m |
9°
|
11°
|
12°
|
11°
|
12°
|
8°
|
| Valley |
10°
|
12°
|
14°
|
13°
|
13°
|
10°
|
Additional weather information
Meteorologist's view
Fine walking conditions in the Mourne Mountains, especially in the morning, but be prepared for a few sharp afternoon showers.
Weather
Mostly dry, bright morning with sunny spells. Showers will break in the afternoon with the odd heavy one likely. Small risk of thunder. Showers dying away in the evening.
Chance of cloud-free hill tops
80%
Low cloud and visibility
Generally very good visibility with occasional cloud cover above 800m with some patches around 700m. Brief interruptions to poorer visibility in afternoon as any heavier showers pass by.
Mountain weather information
Weather
It will be a mostly dry, bright day with plenty of sunshine.
Chance of cloud-free hill tops
80%
Maximum wind speed expected
Fresh southwesterly winds, average speeds 15 to 20mph, gusts 30mph on the tops.
Temperature
- At 700m 10 Celsius.
- Valley 8 Celsius rising to 19 Celsius
- Freezing level Above the summits.
Low cloud and visibility
Very good visibility with occasional clouds above 800m.
Mountain weather information
Sat 6 Sep
Sunrise:
Sunset:
Mainly dry with sunny spells and perhaps a few afternoon showers. Strong south or southeast winds on the tops.
Sun 7 Sep
Sunrise:
Sunset:
Cloudy with outbreaks of rain, heavy at times. A windy day in the hills with strong southeasterly winds, gales on the tops.
Mon 8 Sep
Sunrise:
Sunset:
Sunshine and blustery showers, some heavy and possibly thundery. Staying windy.
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.