Mountain weather

Mountain weather

Mourne Mountains

Confidence

High confidence for a settled Tuesday and some rain or showers thereafter. Low confidence for exact details from Thursday.

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

Dry with sunny spells. Light winds.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy
Chance of
precipitation
(at 800m)
Chance of precipitation
<5%
<5%
<5%
<5%
<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 16mph knots
NW
16mph
NW 8mph knots
NW
8mph
W 4mph knots
W
4mph
S 6mph knots
S
6mph
S 6mph knots
S
6mph
SE 9mph knots
SE
9mph
300m
300m NW 7mph knots
NW
7mph
NW 5mph knots
NW
5mph
S 5mph knots
S
5mph
S 5mph knots
S
5mph
S 5mph knots
S
5mph
SE 3mph knots
SE
3mph
Valley
Valley NW 6mph knots
NW
6mph
NW 4mph knots
NW
4mph
SE 3mph knots
SE
3mph
S 5mph knots
S
5mph
S 5mph knots
S
5mph
E 3mph knots
E
3mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 24mph 10mph 6mph 9mph 8mph 13mph
300m
300m 15mph 8mph 7mph 8mph 7mph 6mph
Valley
Valley 14mph 7mph 6mph 8mph 7mph 6mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
600m
600m 5 degrees Celsius 8 degrees Celsius 11 degrees Celsius 11 degrees Celsius 10 degrees Celsius 9 degrees Celsius
300m
300m 8 degrees Celsius 12 degrees Celsius 14 degrees Celsius 14 degrees Celsius 13 degrees Celsius 11 degrees Celsius
Valley
Valley 10 degrees Celsius 14 degrees Celsius 16 degrees Celsius 16 degrees Celsius 15 degrees Celsius 12 degrees Celsius
Freezing Level Freezing Level
1900m
1900m
2000m
2000m
2200m
3400m

Additional weather information

Meteorologist's view

Nothing to add.

Weather

Dry with sunny spells in the morning. Clouding over somewhat in the middle of the day. Bright or hazy sunshine through the afternoon.

Chance of cloud-free hill tops

90% or higher.

Low cloud and visibility

Mostly clear summits and excellent visibilities with the cloud layer staying well above summit height. The odd patch of cloud possible around summit height in the morning, with any mist or fog patches in valleys soon clearing after dawn.

Ground conditions

No recent ground conditions report available.

Summit specific forecast