Mountain weather

Mountain weather

Mourne Mountains

Confidence

High confidence for the overall themes, but some uncertainty on timing and extent of cloudier conditions and rain later Sunday and 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

Bright or sunny spells, showers occasionally heavy in the afternoon.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Cloudy Cloudy Light rain Heavy rain showers Sunny intervals Partly cloudy (night)
Chance of
precipitation
(at 800m)
Chance of precipitation
10%
20%
30%
40%
30%
20%

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 18mph knots
W
18mph
W 18mph knots
W
18mph
W 20mph knots
W
20mph
W 21mph knots
W
21mph
NW 19mph knots
NW
19mph
W 19mph knots
W
19mph
300m
300m W 6mph knots
W
6mph
W 11mph knots
W
11mph
W 13mph knots
W
13mph
W 12mph knots
W
12mph
NW 10mph knots
NW
10mph
W 8mph knots
W
8mph
Valley
Valley W 6mph knots
W
6mph
W 10mph knots
W
10mph
W 11mph knots
W
11mph
W 11mph knots
W
11mph
NW 9mph knots
NW
9mph
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 27mph 25mph 29mph 30mph 26mph 28mph
300m
300m 16mph 18mph 22mph 22mph 19mph 18mph
Valley
Valley 17mph 18mph 21mph 21mph 18mph 16mph

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 7 degrees Celsius 7 degrees Celsius 6 degrees Celsius
300m
300m 9 degrees Celsius 11 degrees Celsius 12 degrees Celsius 12 degrees Celsius 11 degrees Celsius 9 degrees Celsius
Valley
Valley 10 degrees Celsius 12 degrees Celsius 14 degrees Celsius 14 degrees Celsius 13 degrees Celsius 11 degrees Celsius
Freezing Level Freezing Level
1800m
1900m
1900m
1900m
1900m
1800m

Additional weather information

Meteorologist's view

High UV levels despite occasional cloud cover, suitable protection required.

Weather

Bright or sunny spells between patches of cloud and a few, mostly light scattered showers at first, otherwise a good deal of dry weather for the morning. Cloudier and more occasional, heavier showers for the afternoon. Breezy on tops.

Chance of cloud-free hill tops

80%

Low cloud and visibility

Cloud bases mainly above tops, perhaps briefly falling to around 800m in and around showers in the afternoon. Visibility will be very good below cloud bases with occasional deteriorations in showers in the afternoon.

Ground conditions

No recent ground conditions report available.

Summit specific forecast