Mountain weather

Mountain weather

Southwest Highlands

Confidence

High confidence for most of Friday, although some uncertainty in the timing of rain late in the day. High for generally cloudy and breezy conditions over the weekend but some uncertainty in the location of a weak front which may bring some light rain at times.

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

Low cloud and patchy rain at first them a drier, brighter afternoon. Windy.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Light rain Drizzle Fog Cloudy Light rain Heavy Rain
Chance of
precipitation
(at 800m)
Chance of precipitation
40%
40%
20%
30%
60%
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 S 50mph knots
S
50mph
S 29mph knots
S
29mph
SW 28mph knots
SW
28mph
SW 27mph knots
SW
27mph
SW 27mph knots
SW
27mph
S 29mph knots
S
29mph
900m
900m S 27mph knots
S
27mph
S 18mph knots
S
18mph
SW 19mph knots
SW
19mph
SW 18mph knots
SW
18mph
SW 18mph knots
SW
18mph
SW 17mph knots
SW
17mph
600m
600m S 32mph knots
S
32mph
SW 22mph knots
SW
22mph
SW 26mph knots
SW
26mph
SW 22mph knots
SW
22mph
SW 20mph knots
SW
20mph
SW 19mph knots
SW
19mph
300m
300m S 13mph knots
S
13mph
S 12mph knots
S
12mph
SW 14mph knots
SW
14mph
SW 14mph knots
SW
14mph
SW 9mph knots
SW
9mph
SW 8mph knots
SW
8mph
Glen
Glen W 4mph knots
W
4mph
S 7mph knots
S
7mph
SW 11mph knots
SW
11mph
SW 12mph knots
SW
12mph
SW 9mph knots
SW
9mph
SW 7mph knots
SW
7mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
1300m
1300m 59mph 35mph 36mph 34mph 33mph 35mph
900m
900m 37mph 24mph 26mph 23mph 24mph 23mph
600m
600m 38mph 27mph 32mph 28mph 25mph 24mph
300m
300m 18mph 19mph 22mph 20mph 13mph 13mph
Glen
Glen 11mph 16mph 22mph 22mph 18mph 17mph

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 0 degrees Celsius 0 degrees Celsius 1 degrees Celsius 0 degrees Celsius
900m
900m 4 degrees Celsius 5 degrees Celsius 5 degrees Celsius 6 degrees Celsius 5 degrees Celsius 4 degrees Celsius
600m
600m 6 degrees Celsius 7 degrees Celsius 7 degrees Celsius 8 degrees Celsius 8 degrees Celsius 7 degrees Celsius
300m
300m 11 degrees Celsius 10 degrees Celsius 11 degrees Celsius 12 degrees Celsius 11 degrees Celsius 10 degrees Celsius
Glen
Glen 13 degrees Celsius 13 degrees Celsius 13 degrees Celsius 15 degrees Celsius 13 degrees Celsius 12 degrees Celsius
Freezing Level Freezing Level
2700m
2400m
2000m
2000m
2100m
2200m

Additional weather information

Meteorologist's view

Some difficult navigation in the morning but cloud lifting in the afternoon. UV levels in the afternoon will be quite high with a chance of sunburn, even in cloudy conditions.

Weather

Cloudy with light and patchy rain in the morning. Mainly dry in the early afternoon with a little brightness at times but outbreaks of rain will develop through the late afternoon and evening, perhaps heavy at times.

Chance of cloud-free hill tops

20% in the morning becoming 80% in afternoon. Chances decreasing again in the evening.

Low cloud and visibility

Extensive cloud in the morning with bases 500 to 700m but this will mostly lift and clear early in the afternoon. Cloud becoming extensive on the tops again in the evening. Away from low cloud, the visibility will be mainly good.

Ground conditions

No recent ground conditions report available.

Summit specific forecast