Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High for fine, dry, warm weather on Friday and Saturday. Lower confidence on shower development on Sunday and extent of heavy showers.
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.
Mountain weather forecast
Dry. Plenty of sunshine. Warm. Light winds.
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
<05% | <05% | <05% | <05% | <05% | <05% |
Wind direction and speed (mph)
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
S
14
|
S
14
|
S
13
|
S
13
|
S
17
|
S
18
|
| 300m |
S
3
|
S
5
|
S
7
|
S
7
|
S
5
|
S
5
|
| Valley |
SE
1
|
S
3
|
S
7
|
S
6
|
SE
4
|
SE
4
|
Wind gust (mph)
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m | 19 | 18 | 18 | 18 | 23 | 25 |
| 300m | 8 | 9 | 11 | 11 | 11 | 12 |
| Valley | 7 | 8 | 11 | 10 | 9 | 10 |
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
12°
|
11°
|
12°
|
13°
|
13°
|
11°
|
| 300m |
12°
|
13°
|
15°
|
16°
|
15°
|
11°
|
| Valley |
12°
|
14°
|
16°
|
16°
|
16°
|
12°
|
| Freezing Level |
2,200m
|
1,900m
|
1,900m
|
1,900m
|
2,300m
|
2,300m
|
Altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|
| 600m |
9°
|
9°
|
10°
|
11°
|
10°
|
8°
|
| 300m |
11°
|
13°
|
13°
|
14°
|
14°
|
10°
|
| Valley |
12°
|
14°
|
15°
|
16°
|
15°
|
11°
|
Additional weather information
Meteorologist's view
Fine walking conditions across the Mourne Mountains. Sunburn and dehydration will be the main hazards.
Weather
A dry, bright day with long sunny spells although thin high cloud making sunshine rather hazy at times. A few patches of mist and low cloud in the valleys at first, soon dispersing.
Chance of cloud-free hill tops
90%
Low cloud and visibility
Patches of poor visibility on lower slopes at first, otherwise good visibility. Patches of cloud around 700 to 800m with a sheet of thin cloud well above the summits.
Mountain weather information
Weather
Staying mostly dry with plenty of sunshine. Clouds bubbling up in the afternoon with an isolated shower possible.
Chance of cloud-free hill tops
90% reducing to 70% in afternoon.
Maximum wind speed expected
Light southerly winds, average speeds of 10 to 15mph on the tops.
Temperature
- At 700m Plus 12 Celsius.
- Valley 12 Celsius rising to 21 Celsius.
- Freezing level Well above the summits.
Low cloud and visibility
Good visibility for much of the day with patches of cloud around 800m, becoming more extensive in the afternoon.
Mountain weather information
Sun 12 May
Sunrise:
Sunset:
Mainly dry morning with some sunshine. Heavy, possibly thundery showers are likely in afternoon and early evening. Light winds.
Mon 13 May
Sunrise:
Sunset:
Rather cloudy with further showers, then more persistent, heavier rain later in the day. Freshening southeast winds.
Tue 14 May
Sunrise:
Sunset:
Mostly cloudy with further outbreaks of rain, heavy at times. Strong southeast winds on the tops.
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.