Mountain weather

Mountain weather

Mourne Mountains

Confidence

High for changeable weather for the next few days. Low for daily detail.

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

Mainly dry with bright spells

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Light rain Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals
Chance of
precipitation
(at 800m)
Chance of precipitation
70%
10%
10%
10%
10%
10%

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 20mph knots
W
20mph
SW 20mph knots
SW
20mph
SW 19mph knots
SW
19mph
SW 18mph knots
SW
18mph
SW 15mph knots
SW
15mph
S 14mph knots
S
14mph
300m
300m W 6mph knots
W
6mph
SW 12mph knots
SW
12mph
SW 12mph knots
SW
12mph
S 9mph knots
S
9mph
SW 7mph knots
SW
7mph
S 4mph knots
S
4mph
Valley
Valley W 3mph knots
W
3mph
SW 8mph knots
SW
8mph
SW 10mph knots
SW
10mph
SW 11mph knots
SW
11mph
S 7mph knots
S
7mph
SE 4mph knots
SE
4mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 27mph 27mph 27mph 25mph 20mph 20mph
300m
300m 13mph 19mph 20mph 16mph 13mph 10mph
Valley
Valley 14mph 17mph 20mph 21mph 13mph 9mph

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 8 degrees Celsius 10 degrees Celsius 10 degrees Celsius 10 degrees Celsius
300m
300m 11 degrees Celsius 11 degrees Celsius 12 degrees Celsius 14 degrees Celsius 14 degrees Celsius 13 degrees Celsius
Valley
Valley 13 degrees Celsius 13 degrees Celsius 14 degrees Celsius 15 degrees Celsius 16 degrees Celsius 14 degrees Celsius
Freezing Level Freezing Level
2800m
2600m
2300m
2200m
2100m
2200m

Additional weather information

Meteorologist's view

Fresh southwesterly winds can be expected on the higher tops.

Weather

Outbreaks of rain in the early hours clearing soon after dawn. Then the rest of the day will be dry with variable amounts of cloud. Just a small chance of a brief passing shower.

Chance of cloud-free hill tops

70%

Low cloud and visibility

Poor in areas of low cloud down to 500 to 800 metres at first. Otherwise good visibility with patchy cloud above 900 metres.

Ground conditions

No recent ground conditions report available.

Summit specific forecast