Mountain weather

Mountain weather

Mourne Mountains

Confidence

High for changeable weather for the next few days

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.
Heavy Persistent Rain
Heavy and persistent rain can lead to drenched clothing and footwear with waterproofs often becoming soaked through, especially if accompanied by strong winds. This can lead to significant loss of body heat and an increased likelihood of hypothermia. Terrain may turn increasingly boggy underfoot while streams can flood and become impassable. There may also be a risk of flooding in valleys or glens. If there is snow cover, a heightened avalanche hazard is possible and avalanche reports should be consulted where available.
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

Windy with showers or longer spells of rain

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 600m)
Weather symbols Partly cloudy (night) Sunny intervals Heavy Rain Heavy rain showers Cloudy Cloudy
Chance of
precipitation
(at 600m)
Chance of precipitation
20%
20%
80%
80%
20%
20%

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 W 24mph knots
W
24mph
SW 19mph knots
SW
19mph
SW 29mph knots
SW
29mph
SW 28mph knots
SW
28mph
SW 30mph knots
SW
30mph
SW 31mph knots
SW
31mph
300m
300m W 8mph knots
W
8mph
SW 8mph knots
SW
8mph
SW 16mph knots
SW
16mph
SW 16mph knots
SW
16mph
SW 16mph knots
SW
16mph
SW 15mph knots
SW
15mph
Valley
Valley SW 4mph knots
SW
4mph
SW 9mph knots
SW
9mph
SW 13mph knots
SW
13mph
SW 13mph knots
SW
13mph
SW 13mph knots
SW
13mph
W 13mph knots
W
13mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 32mph 26mph 41mph 39mph 41mph 44mph
300m
300m 16mph 17mph 28mph 27mph 28mph 28mph
Valley
Valley 16mph 22mph 26mph 26mph 27mph 26mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 5 degrees Celsius 6 degrees Celsius 6 degrees Celsius 7 degrees Celsius 6 degrees Celsius 4 degrees Celsius
300m
300m 10 degrees Celsius 11 degrees Celsius 10 degrees Celsius 11 degrees Celsius 10 degrees Celsius 8 degrees Celsius
Valley
Valley 12 degrees Celsius 12 degrees Celsius 12 degrees Celsius 13 degrees Celsius 12 degrees Celsius 10 degrees Celsius
Freezing Level Freezing Level
1800m
2200m
2400m
2200m
1600m
1500m

Additional weather information

Meteorologist's view

Becoming windy at height gales developing on the higher summits. Drenching conditions can be expected in rain.

Weather

Mostly dry during the morning period. Then showers or will spread from the southwest by the afternoon. Becoming dry in the evening.

Chance of cloud-free hill tops

60%

Low cloud and visibility

Good visibility with patchy cloud above 900 metres at first. Cloud lowering to 700 metres as showers develop in the afternoon

Ground conditions

No recent ground conditions report available.

Summit specific forecast