Mountain weather

Mountain weather

Mourne Mountains

Confidence

High confidence for an unsettled few days but lower confidence in the timing and extent of any rain.

Mountain hazards

Mountain weather hazards

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

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.

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

Strong winds at times. Cloudy with rain arriving through the afternoon.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Cloudy Cloudy Cloudy Dull Dull Dull
Chance of
precipitation
(at 800m)
Chance of precipitation
10%
30%
30%
50%
50%
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 15mph knots
W
15mph
SW 12mph knots
SW
12mph
SW 17mph knots
SW
17mph
SW 20mph knots
SW
20mph
SW 24mph knots
SW
24mph
W 27mph knots
W
27mph
300m
300m W 7mph knots
W
7mph
SW 9mph knots
SW
9mph
SW 11mph knots
SW
11mph
SW 11mph knots
SW
11mph
SW 12mph knots
SW
12mph
W 14mph knots
W
14mph
Valley
Valley W 5mph knots
W
5mph
SW 7mph knots
SW
7mph
SW 9mph knots
SW
9mph
SW 10mph knots
SW
10mph
SW 10mph knots
SW
10mph
W 11mph knots
W
11mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 21mph 16mph 23mph 28mph 33mph 38mph
300m
300m 13mph 13mph 17mph 20mph 22mph 25mph
Valley
Valley 13mph 12mph 16mph 19mph 21mph 24mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 6 degrees Celsius 7 degrees Celsius 7 degrees Celsius 8 degrees Celsius 9 degrees Celsius 8 degrees Celsius
300m
300m 11 degrees Celsius 11 degrees Celsius 11 degrees Celsius 13 degrees Celsius 14 degrees Celsius 13 degrees Celsius
Valley
Valley 12 degrees Celsius 13 degrees Celsius 13 degrees Celsius 14 degrees Celsius 16 degrees Celsius 15 degrees Celsius
Freezing Level Freezing Level
2400m
2100m
3100m
3200m
2900m
2800m

Additional weather information

Meteorologist's view

Cloudy with rain at times and widespread hill fog developing, making for tricky navigation. Winds may be stronger than indicated in the table and gusts may reach over 40mph on highest hills. These strong winds will make for tiring walking conditions and risk of being blown off balance.

Weather

A mostly dry morning with variable cloud and chance of a few bright or sunny spells. Increasingly dull and overcast through the afternoon as outbreaks of rain spread eastwards, which may be heavy at times. Cloudy and mostly dry in the evening. Fresh to strong southwesterly winds.

Chance of cloud-free hill tops

30% in the morning, decreasing to 10% or less through the afternoon.

Low cloud and visibility

Occasional low cloud bases down to 600-700m in the morning, these becoming more widespread in the afternoon and falling to lower slopes in the evening. Visibility good below cloud but poor in cloud and rain.

Ground conditions

No recent ground conditions report available.

Summit specific forecast