Mountain weather

Mountain weather

Mourne Mountains

Confidence

High confidence for the main themes for the next 5 days, with some uncertainty on the extent of cloud breaks on Thursday as well as the timings of the rain on Saturday.

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. The odd light shower possible. Strong winds on tops moderating later.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Dull Cloudy Sunny intervals Sunny intervals Cloudy Cloudy
Chance of
precipitation
(at 800m)
Chance of precipitation
30%
20%
10%
10%
<5%
<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 NW 23mph knots
NW
23mph
W 16mph knots
W
16mph
W 15mph knots
W
15mph
W 15mph knots
W
15mph
W 13mph knots
W
13mph
W 17mph knots
W
17mph
300m
300m W 10mph knots
W
10mph
W 10mph knots
W
10mph
W 9mph knots
W
9mph
W 9mph knots
W
9mph
W 8mph knots
W
8mph
W 7mph knots
W
7mph
Valley
Valley NW 8mph knots
NW
8mph
NW 8mph knots
NW
8mph
W 8mph knots
W
8mph
W 7mph knots
W
7mph
W 6mph knots
W
6mph
W 6mph knots
W
6mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 31mph 23mph 21mph 21mph 19mph 25mph
300m
300m 19mph 17mph 16mph 15mph 13mph 15mph
Valley
Valley 20mph 17mph 15mph 14mph 12mph 15mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 3 degrees Celsius 5 degrees Celsius 8 degrees Celsius 9 degrees Celsius 10 degrees Celsius 8 degrees Celsius
300m
300m 8 degrees Celsius 10 degrees Celsius 12 degrees Celsius 14 degrees Celsius 13 degrees Celsius 11 degrees Celsius
Valley
Valley 10 degrees Celsius 12 degrees Celsius 14 degrees Celsius 15 degrees Celsius 15 degrees Celsius 13 degrees Celsius
Freezing Level Freezing Level
1900m
1900m
2000m
2000m
2200m
2200m

Additional weather information

Meteorologist's view

Mod-High UV levels despite occasional cloud cover, suitable protection advised.

Weather

Rather cloudy to start the day with a few showers, but soon brightening up with some sunny spells. Dry during much of daytime but with the odd slight shower not to be ruled out. Strong winds on tops at first will gradually moderate during the day.

Chance of cloud-free hill tops

40% rising to 90% during the morning.

Low cloud and visibility

Patchy cloud bases around 700m at first in the morning, these breaking up and lifting above tops. Visibility below cloud bases will be good but with brief deteriorations in light showers.

Ground conditions

No recent ground conditions report available.

Summit specific forecast