Mountain weather

Southwest Highlands

Southwest Highlands Mountain weather forecast table

Confidence

Generally high for today, with some rain pushing east later Saturday into Sunday. Then high confidence in an unsettled spell of sunshine and showers with some more organised rain at times through until Tuesday, but lower confidence in the exact day to day details.

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.

hazard 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.
hazard 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.

hazard 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.

Mountain weather forecast

Cloudy this morning, some bright or sunny spells developing later. Rain into western coastal ranges in evening. Strong south to southwesterly summit winds.

06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 800m)
Fog Fog Sunny intervals Sunny intervals Cloudy Light rain
Chance of precipitation
(at 800m)
10% 10% 10% 10% 10% 40%

Wind direction and speed (mph)
Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m S
35
S
33
S
34
S
31
S
30
S
26
900m S
25
S
25
S
25
S
22
S
21
S
16
600m S
34
S
31
S
31
S
28
S
27
SW
21
300m SE
15
S
14
S
18
S
17
S
16
S
12
Glen S
5
S
11
S
13
SW
12
S
11
SW
8
Wind gust (mph)
Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m 43 40 44 40 38 32
900m 31 31 34 30 29 22
600m 40 37 40 36 35 26
300m 22 20 28 27 25 19
Glen 15 21 25 23 22 16

Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m
900m
11°
11°
12°
13°
12°
11°
600m
14°
13°
14°
15°
15°
13°
300m
15°
15°
17°
18°
17°
15°
Glen
16°
18°
19°
19°
19°
16°
Freezing Level
3,200m
3,200m
3,200m
3,200m
3,200m
3,300m

Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m
900m
600m
10°
10°
10°
300m
12°
13°
14°
14°
14°
13°
Glen
15°
16°
17°
17°
17°
15°

Additional weather information

Met Office Aberdeen meteorologist's view

Windy conditions will make for fairly arduous walking on exposed terrain with buffeting of clothing. Balance may be affected at times. Gusts of 40-50mph possible over the highest summits of the Nevis ranges later in the day.

Weather

Cloudy in the morning, with the driest and clearest skies possible towards Moidart and Glen Finnan. Becoming clearer through the day with some bright or sunny spells developing, staying cloudiest in the south. Clouding over from the west in the evening with some rain pushing into Argyll and Bute, then into western coastal ranges through the evening. South to southwesterly winds will be strong, with a chance of gales over the highest summits later.

Chance of cloud-free hill tops

30% at first, the best chances in the north. Rising to 60% in the afternoon, falling to 30% or less again in the evening.

Low cloud and visibility

Fairly extensive cloud down to 400-500m this morning. This lifting and breaking somewhat through the day to allow for some clear summits and patchy cloud around 700-900m. Cloud thickening and lowering again from the west through the evening.

Sunrise:
Sunset:

Mountain weather information

Weather

Cloudy with rain throughout the day. The rain becomes heavier and more widespread as it pushes east through the afternoon and evening.

Chance of cloud-free hill tops

30% or less.

Maximum wind speed expected

Southerly 20-25mph, gust 30-35mph, backing westerly 10-15mph.

Temperature

  • At 800m Plus 9 to plus 11 Celsius.
  • Glen Plus 14 rising to plus 17 Celsius.
  • Freezing level Above summits.

Low cloud and visibility

Widespread cloud down to 300-500m and associated poor visibilities throughout the day, worsening in the afternoon and evening.

Mountain weather information

Sun 21 Jul

Sunrise:
Sunset:

Scattered showers push in from the west. Drier later. Fresh to strong westerly winds.

Mon 22 Jul

Sunrise:
Sunset:

Showers or longer spells of rain. Light to fresh southwesterly winds.

Tue 23 Jul

Sunrise:
Sunset:

Showers or longer spells of rain, perhaps drier later. Light to fresh westerly winds.

Updated at:

Summit specific forecast

Mountain summit forecast map

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For snow and avalanche hazard forecasts please visit Scottish Avalanche Information Service