Mountain weather

Mountain weather

Southwest Highlands

Confidence

High confidence in a transition to unsettled weather from Friday and in the overall evolution. Lower confidence in shower detail on 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.
Thunderstorms
Lightning is a significant mountain hazard which can result in serious injury or death. Mountain terrain often leaves one highly exposed to lightning strikes. Hail may give unpleasant conditions with torrential rain and localised flash flooding also possible, mainly in Summer months.

Mountain weather forecast

Dry, sunny, hot. The odd shower.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Sunny Sunny intervals Sunny intervals Cloudy Light rain showers Heavy Rain
Chance of
precipitation
(at 800m)
Chance of precipitation
10%
<5%
<5%
<5%
20%
30%

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 SE 12mph knots
SE
12mph
SE 13mph knots
SE
13mph
SE 21mph knots
SE
21mph
SE 26mph knots
SE
26mph
SE 27mph knots
SE
27mph
SE 27mph knots
SE
27mph
900m
900m SE 16mph knots
SE
16mph
SE 12mph knots
SE
12mph
SE 16mph knots
SE
16mph
SE 19mph knots
SE
19mph
SE 20mph knots
SE
20mph
SE 16mph knots
SE
16mph
600m
600m S 6mph knots
S
6mph
E 8mph knots
E
8mph
SE 13mph knots
SE
13mph
SE 18mph knots
SE
18mph
SE 22mph knots
SE
22mph
SE 19mph knots
SE
19mph
300m
300m E 6mph knots
E
6mph
E 7mph knots
E
7mph
SE 11mph knots
SE
11mph
S 12mph knots
S
12mph
SE 12mph knots
SE
12mph
S 8mph knots
S
8mph
Glen
Glen S 2mph knots
S
2mph
E 4mph knots
E
4mph
SE 8mph knots
SE
8mph
S 10mph knots
S
10mph
S 8mph knots
S
8mph
S 5mph knots
S
5mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
1300m
1300m 14mph 17mph 27mph 33mph 35mph 33mph
900m
900m 19mph 16mph 21mph 25mph 26mph 22mph
600m
600m 7mph 11mph 18mph 24mph 28mph 24mph
300m
300m 13mph 12mph 17mph 19mph 19mph 14mph
Glen
Glen 3mph 6mph 14mph 18mph 17mph 12mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
1300m
1300m 6 degrees Celsius 6 degrees Celsius 7 degrees Celsius 7 degrees Celsius 6 degrees Celsius 5 degrees Celsius
900m
900m 5 degrees Celsius 9 degrees Celsius 11 degrees Celsius 12 degrees Celsius 11 degrees Celsius 9 degrees Celsius
600m
600m 12 degrees Celsius 12 degrees Celsius 15 degrees Celsius 14 degrees Celsius 13 degrees Celsius 12 degrees Celsius
300m
300m 12 degrees Celsius 15 degrees Celsius 17 degrees Celsius 18 degrees Celsius 17 degrees Celsius 16 degrees Celsius
Glen
Glen 14 degrees Celsius 18 degrees Celsius 21 degrees Celsius 22 degrees Celsius 21 degrees Celsius 19 degrees Celsius
Freezing Level Freezing Level
2500m
2800m
3000m
2900m
2600m
2500m

Additional weather information

Meteorologist's view

Warm temperatures bring a risk of dehydration and heat stress, especially on long climbs, feeling hot at low elevations. High UV levels so suitable protection from the sun is advised.

Weather

Dry, warm and sunny through the day. Small chance of the odd shower in the early morning. Some showers push north in the evening, carrying a small risk of lightning.

Chance of cloud-free hill tops

Generally 80% or higher, but 40% in the east in the early morning.

Low cloud and visibility

Summits clear and good visibilities throughout the majority of the day. Quite extensive areas of cloud down to around 300-500m in the early morning over eastern ranges, but the highest summits perhaps peeking out above the cloud layer. This gradually clearing through the morning. Low cloud returning from the west in the evening.

Ground conditions

No recent ground conditions report available.

Summit specific forecast