Mountain weather

Mountain weather

Mourne Mountains

Confidence

High confidence for a rather cloudy Saturday with a narrow band of heavy rain for a time in the afternoon. High confidence in a change to a SW'ly wind direction from Monday afternoon bringing milder, cloudier and often windy conditions.

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

Cloudy with a spell of moderate or heavy rain in the afternoon.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Cloudy Light rain Light rain Heavy Rain Sunny intervals Clear night
Chance of
precipitation
(at 800m)
Chance of precipitation
30%
60%
70%
70%
40%
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 S 9mph knots
S
9mph
S 11mph knots
S
11mph
S 10mph knots
S
10mph
W 18mph knots
W
18mph
W 21mph knots
W
21mph
W 25mph knots
W
25mph
300m
300m S 3mph knots
S
3mph
S 6mph knots
S
6mph
S 5mph knots
S
5mph
W 11mph knots
W
11mph
W 12mph knots
W
12mph
W 11mph knots
W
11mph
Valley
Valley S 2mph knots
S
2mph
S 5mph knots
S
5mph
S 4mph knots
S
4mph
W 9mph knots
W
9mph
W 10mph knots
W
10mph
W 9mph knots
W
9mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 11mph 14mph 13mph 25mph 30mph 36mph
300m
300m 6mph 9mph 8mph 18mph 21mph 23mph
Valley
Valley 5mph 9mph 7mph 18mph 20mph 21mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m -1 degrees Celsius 0 degrees Celsius 2 degrees Celsius 2 degrees Celsius 2 degrees Celsius -2 degrees Celsius
300m
300m 4 degrees Celsius 4 degrees Celsius 6 degrees Celsius 7 degrees Celsius 6 degrees Celsius 3 degrees Celsius
Valley
Valley 6 degrees Celsius 5 degrees Celsius 8 degrees Celsius 9 degrees Celsius 8 degrees Celsius 5 degrees Celsius
Freezing Level Freezing Level
1400m
1600m
1600m
1500m
1300m
1100m

Additional weather information

Meteorologist's view

Poor visibility on upper slopes for a time may make for challenging navigation. Best of the conditions will be early morning and evening.

Weather

A cloudy morning with patchy light rain. Rain will turn heavier for a time in the afternoon, before clearing to brighter spells and a few scattered showers in the evening.

Chance of cloud-free hill tops

70% early morning and evening, otherwise 30%.

Low cloud and visibility

Cloud bases lowering to 600-700m by late morning with visibility a few kilometres below bases in a spell of moderate or heavy afternoon rain.

Ground conditions

No recent ground conditions report available.

Summit specific forecast