Mountain weather

Mountain weather

Mourne Mountains

Confidence

High confidence in the general evolution, lower confidence in exact details on Saturday afternoon and from late Monday.

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

Mostly dry. Variable cloud, sunny spells. Light evening rain

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Cloudy Sunny intervals Cloudy Sunny intervals Cloudy Light rain
Chance of
precipitation
(at 800m)
Chance of precipitation
10%
20%
10%
10%
10%
30%

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 19mph knots
W
19mph
W 19mph knots
W
19mph
W 20mph knots
W
20mph
W 18mph knots
W
18mph
NW 23mph knots
NW
23mph
NW 25mph knots
NW
25mph
300m
300m W 6mph knots
W
6mph
W 11mph knots
W
11mph
W 12mph knots
W
12mph
W 11mph knots
W
11mph
NW 13mph knots
NW
13mph
NW 11mph knots
NW
11mph
Valley
Valley W 4mph knots
W
4mph
W 9mph knots
W
9mph
W 11mph knots
W
11mph
W 10mph knots
W
10mph
NW 11mph knots
NW
11mph
NW 10mph knots
NW
10mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 27mph 26mph 28mph 25mph 32mph 35mph
300m
300m 13mph 18mph 20mph 19mph 23mph 22mph
Valley
Valley 14mph 18mph 20mph 18mph 22mph 22mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 7 degrees Celsius 8 degrees Celsius 10 degrees Celsius 12 degrees Celsius 11 degrees Celsius 8 degrees Celsius
300m
300m 12 degrees Celsius 13 degrees Celsius 15 degrees Celsius 17 degrees Celsius 16 degrees Celsius 13 degrees Celsius
Valley
Valley 13 degrees Celsius 15 degrees Celsius 17 degrees Celsius 19 degrees Celsius 17 degrees Celsius 14 degrees Celsius
Freezing Level Freezing Level
2700m
2500m
2500m
2800m
2600m
2800m

Additional weather information

Meteorologist's view

High UV levels where the sun breaks through so suitable protection is recommended.

Weather

Dry for much of the day with variable cloud and some bright or sunny spells. Small chance of the odd light shower in the late morning. Some patchy light rain spreading southeast in the evening.

Chance of cloud-free hill tops

70%, best chances in afternoon.

Low cloud and visibility

Some areas of cloud down to 300-500m in the morning with visibilities falling moderate or poor in hill fog. This lifting and breaking to leave summits clear and good visibilities.

Ground conditions

No recent ground conditions report available.

Summit specific forecast