Mountain weather

Mountain weather

Mourne Mountains

Confidence

Generally high confidence for overall setup, lower confidence from Tuesday with regards to timing and extent of heavy rain and strong winds.

Sunrise: Sunset:
Sunrise: Sunset:
Mountain hazards

Mountain weather hazards

Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.

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.
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.
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.
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

A mostly dry day with sunny spells. Strong winds.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 600m)
Weather symbols Sunny intervals Sunny intervals Light rain showers Sunny intervals Clear night Clear night
Chance of
precipitation
(at 600m)
Chance of precipitation
10%
10%
20%
20%
10%
<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 SW 25mph knots
SW
25mph
SW 20mph knots
SW
20mph
SW 22mph knots
SW
22mph
S 22mph knots
S
22mph
S 26mph knots
S
26mph
S 29mph knots
S
29mph
300m
300m SW 10mph knots
SW
10mph
SW 10mph knots
SW
10mph
SW 13mph knots
SW
13mph
S 12mph knots
S
12mph
S 12mph knots
S
12mph
S 13mph knots
S
13mph
Valley
Valley SW 5mph knots
SW
5mph
SW 7mph knots
SW
7mph
SW 11mph knots
SW
11mph
S 11mph knots
S
11mph
S 10mph knots
S
10mph
S 11mph knots
S
11mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 34mph 27mph 30mph 32mph 37mph 40mph
300m
300m 19mph 17mph 22mph 22mph 24mph 26mph
Valley
Valley 16mph 15mph 22mph 22mph 23mph 25mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 3 degrees Celsius 4 degrees Celsius 7 degrees Celsius 8 degrees Celsius 7 degrees Celsius 6 degrees Celsius
300m
300m 8 degrees Celsius 9 degrees Celsius 11 degrees Celsius 12 degrees Celsius 11 degrees Celsius 10 degrees Celsius
Valley
Valley 10 degrees Celsius 11 degrees Celsius 13 degrees Celsius 14 degrees Celsius 13 degrees Celsius 11 degrees Celsius
Freezing Level Freezing Level
1800m
1800m
2100m
2200m
2200m
2100m

Additional weather information

Meteorologist's view

A windy day with strong winds making for slow progress and risk of being blown over. A risk of winds reaching gale force in the early morning.

Weather

A largely dry day with variable cloud and bright or sunny spells. The odd isolated shower is possible in the afternoon, but staying predominately dry. Strong south to southwesterly winds.

Chance of cloud-free hill tops

80%.

Low cloud and visibility

Shallow low cloud around 400m in the morning. In the afternoon cloud mostly above summits but some patchy lower cloud bases down to 700m at times. Visibility generally very good, deteriorating in patchy hill fog.

Ground conditions

No recent ground conditions report available.

Summit specific forecast