Mountain weather
Mourne Mountains Mountain weather forecast table
Confidence
High confidence for periods of unsettled weather, but low confidence on the exact details.
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, bright day, hazy sunshine. Breezy. Chance of the odd evening shower.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 700m) |
|
|
|
|
|
|
Chance of precipitation (at 700m) |
00% | 00% | 00% | 00% | 10% | 20% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
E
34
|
E
29
|
E
28
|
SE
29
|
SE
22
|
SE
17
|
| 300m |
E
15
|
E
18
|
E
18
|
E
14
|
E
10
|
SE
6
|
| Valley |
E
12
|
E
15
|
E
16
|
E
13
|
E
8
|
SE
3
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 48 | 39 | 38 | 39 | 32 | 24 |
| 300m | 28 | 27 | 28 | 25 | 20 | 12 |
| Valley | 28 | 27 | 27 | 25 | 19 | 9 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
6°
|
7°
|
8°
|
11°
|
12°
|
12°
|
| 300m |
7°
|
10°
|
11°
|
14°
|
13°
|
12°
|
| Valley |
8°
|
11°
|
13°
|
15°
|
14°
|
12°
|
| Freezing Level |
1,600m
|
1,700m
|
1,900m
|
2,300m
|
2,400m
|
2,600m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
-1°
|
2°
|
3°
|
6°
|
8°
|
8°
|
| 300m |
4°
|
6°
|
8°
|
11°
|
11°
|
11°
|
| Valley |
6°
|
8°
|
10°
|
12°
|
13°
|
12°
|
Additional weather information
Meteorologist's view
Gusts of 40mph or more will give difficult walking conditions with a risk of being blown off balance and energy output significantly increased when walking into the wind. Be prepared for strong sunshine and a risk of sunburn and dehydration on long hikes.
Weather
Dry much of the day with sunny spells, but sunshine turning hazy at times with high level cloud. Cloudier in the evening with the chance of the odd shower. Breezy. Chilly in the early morning.
Chance of cloud-free hill tops
100%
Low cloud and visibility
Clear summits and generally excellent visibilities.
Mountain weather information
Weather
Variable cloud and bright spells through the day. Often dry but the chance of a few showers.
Chance of cloud-free hill tops
80%.
Maximum wind speed expected
Southeast veering southwest, 20-30mph.
Temperature
- At 700m Plus 6C rising to plus 12C by day.
- Valley Plus 9C rising to plus 17C by day.
- Freezing level Well above summits.
Low cloud and visibility
Summits generally clear and excellent visibilities much of the day. Chance of some cloud around summit height and visibilities falling moderate or poor should any showers pass through.
Mountain weather information
Sat 2 May
Sunrise:
Sunset:
Variable cloud and bright spells. Chance of a few showers. Light winds.
Sun 3 May
Sunrise:
Sunset:
Again variable cloud and bright spells. Likely staying mostly dry. Light winds.
Mon 4 May
Sunrise:
Sunset:
Variable cloud and bright spells, with the chance of a few showers. Turning a touch cooler. Light winds.
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.