Mountain weather

Mountain weather

Southwest Highlands

Confidence

High confidence in unsettled conditions throughout. Lower confidence for exact details on Saturday afternoon and from Monday.

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.

Gales
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
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 outbreaks of mostly light rain. Drier for a time in afternoon. Strong winds on tops, risk of gales.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Heavy Rain Fog Fog Fog Cloudy Drizzle
Chance of
precipitation
(at 800m)
Chance of precipitation
90%
60%
30%
20%
50%
80%

Wind direction and speed

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
1300m
1300m SW 34mph knots
SW
34mph
SW 30mph knots
SW
30mph
SW 28mph knots
SW
28mph
SW 29mph knots
SW
29mph
W 31mph knots
W
31mph
SW 37mph knots
SW
37mph
900m
900m W 26mph knots
W
26mph
SW 24mph knots
SW
24mph
SW 24mph knots
SW
24mph
W 22mph knots
W
22mph
W 21mph knots
W
21mph
SW 23mph knots
SW
23mph
600m
600m SW 29mph knots
SW
29mph
SW 26mph knots
SW
26mph
SW 25mph knots
SW
25mph
SW 23mph knots
SW
23mph
SW 23mph knots
SW
23mph
SW 27mph knots
SW
27mph
300m
300m SW 13mph knots
SW
13mph
SW 14mph knots
SW
14mph
SW 14mph knots
SW
14mph
SW 14mph knots
SW
14mph
SW 13mph knots
SW
13mph
SW 14mph knots
SW
14mph
Glen
Glen SW 8mph knots
SW
8mph
SW 10mph knots
SW
10mph
SW 11mph knots
SW
11mph
SW 11mph knots
SW
11mph
SW 9mph knots
SW
9mph
SW 9mph knots
SW
9mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
1300m
1300m 40mph 36mph 36mph 36mph 38mph 45mph
900m
900m 31mph 30mph 30mph 28mph 27mph 32mph
600m
600m 35mph 31mph 32mph 29mph 29mph 34mph
300m
300m 20mph 19mph 20mph 19mph 19mph 22mph
Glen
Glen 16mph 18mph 19mph 19mph 16mph 20mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
1300m
1300m 1 degrees Celsius 0 degrees Celsius 1 degrees Celsius 1 degrees Celsius 1 degrees Celsius 0 degrees Celsius
900m
900m 4 degrees Celsius 4 degrees Celsius 5 degrees Celsius 6 degrees Celsius 6 degrees Celsius 4 degrees Celsius
600m
600m 6 degrees Celsius 6 degrees Celsius 7 degrees Celsius 8 degrees Celsius 8 degrees Celsius 7 degrees Celsius
300m
300m 10 degrees Celsius 9 degrees Celsius 10 degrees Celsius 12 degrees Celsius 11 degrees Celsius 10 degrees Celsius
Glen
Glen 13 degrees Celsius 13 degrees Celsius 14 degrees Celsius 15 degrees Celsius 15 degrees Celsius 13 degrees Celsius
Freezing Level Freezing Level
2700m
3300m
3100m
3100m
2200m
3400m

Additional weather information

Meteorologist's view

Windy conditions on exposed high terrain, which may be occasionally stronger than tables and apps show, will give difficult walking conditions with a significant risk of balance being affected.

Weather

Cloudy with outbreaks of mostly light rain in the morning. Becoming largely dry with the chance of some brightness for a few hours in the afternoon, before further cloud and rain spreading southeast in the evening. Strong winds over tops, risk of gales and strengthening overnight.

Chance of cloud-free hill tops

20% or less, best chances in the east and in the afternoon

Low cloud and visibility

Widespread low cloud down to 300-500m for much of the day with visibilities falling moderate or poor in hill fog. Some breaks over eastern ranges and for a few hours in the afternoon before cloud becomes more widespread in the evening.

Ground conditions

No recent ground conditions report available.

Summit specific forecast