Mountain weather

Mountain weather

Mourne Mountains

Confidence

High confidence for warm, settled weather Thursday and Friday. Lower confidence for cloud amounts from Saturday.

Mountain hazards

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.

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.

Mountain weather forecast

Dry and warm. Bright, sunny spells and variable cloud. Light winds.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Sunny intervals Sunny Sunny intervals Sunny intervals Sunny intervals Sunny
Chance of
precipitation
(at 800m)
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%

Wind direction and speed

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m NW 9mph knots
NW
9mph
NW 5mph knots
NW
5mph
SW 5mph knots
SW
5mph
W 7mph knots
W
7mph
SW 5mph knots
SW
5mph
E 6mph knots
E
6mph
300m
300m NW 4mph knots
NW
4mph
W 3mph knots
W
3mph
S 5mph knots
S
5mph
SW 4mph knots
SW
4mph
S 3mph knots
S
3mph
S 2mph knots
S
2mph
Valley
Valley NW 3mph knots
NW
3mph
W 3mph knots
W
3mph
SW 3mph knots
SW
3mph
W 3mph knots
W
3mph
S 3mph knots
S
3mph
SW 2mph knots
SW
2mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 12mph 6mph 8mph 10mph 7mph 8mph
300m
300m 7mph 5mph 7mph 7mph 5mph 4mph
Valley
Valley 8mph 5mph 6mph 8mph 5mph 4mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 11 degrees Celsius 14 degrees Celsius 16 degrees Celsius 18 degrees Celsius 18 degrees Celsius 16 degrees Celsius
300m
300m 15 degrees Celsius 17 degrees Celsius 19 degrees Celsius 20 degrees Celsius 20 degrees Celsius 16 degrees Celsius
Valley
Valley 16 degrees Celsius 19 degrees Celsius 21 degrees Celsius 23 degrees Celsius 20 degrees Celsius 17 degrees Celsius
Freezing Level Freezing Level
3000m
3200m
2900m
3200m
3300m
3300m

Additional weather information

Meteorologist's view

It will be warm through the day with high UV levels so it will be important to stay hydrated and bring suitable protection from the sun.

Weather

A dry and warm day with bright or sunny spells and variable cloud. High cloud may turn the sunshine hazy at times. Some early valley fog or low cloud will soon burn away in the morning. Light winds.

Chance of cloud-free hill tops

60% around dawn rising to 90% or higher by midday.

Low cloud and visibility

Areas of low cloud in the early morning, generally below around 300-500m burning off. Then no low cloud and good visibility..

Ground conditions

No recent ground conditions report available.

Summit specific forecast