Mountain weather

Southwest Highlands

Southwest Highlands Mountain weather forecast table

Confidence

Medium.

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

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

hazard Severe Chill Effect
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.
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 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

Mainly dry, a few sunny intervals, but chance of one or two light showers, with snow in the showers on higher hills. Significant summit windchill.

Time 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 800m)
Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Cloudy
Chance of precipitation
(at 800m)
10% 10% 10% 20% 10% <05%

Wind direction and speed (mph)
Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
1300m N
20
NE
20
NE
17
N
13
NE
14
NE
10
900m NW
11
NE
16
NE
13
N
11
NE
11
NE
9
600m SW
10
NE
18
NE
14
N
11
NE
12
NE
14
300m NW
4
NE
13
NE
11
N
8
NE
9
N
5
Glen NW
2
NE
10
NE
9
NE
7
NE
8
NE
6
Wind gust (mph)
Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
1300m 23 26 22 18 18 15
900m 14 20 17 15 15 15
600m 12 23 19 15 16 18
300m 8 19 16 12 14 10
Glen 7 18 14 11 14 14

Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
1300m
-4°
-5°
-4°
-2°
-2°
-3°
900m
-1°
600m
300m
Glen
11°
10°
Freezing Level
800m
600m
500m
600m
600m
500m

Altitude above mean sea level
Time 06:00 09:00 12:00 15:00 18:00 21:00
1300m
-11°
-13°
-11°
-8°
-8°
-8°
900m
-5°
-7°
-4°
-2°
-2°
-4°
600m
-2°
-4°
-2°
-2°
300m
Glen

Additional weather information

Met Office Aberdeen meteorologist's view

Note the unseasonably low freezing levels

Weather

Mainly dry with clear or sunny intervals, but a cloudier spell from mid morning to early afternoon with the chance of a few light showers, falling as snow above 600m. Significant summit windchill in moderate to fresh northerly winds.

Chance of cloud-free hill tops

Mostly 90% but 60% for a time as showers pass by.

Low cloud and visibility

Generally no low cloud, but the cloud could drop to 900m as showers pass by, with temporary hill fog on higher tops.

Sunrise:
Sunset:

Mountain weather information

Weather

Mostly dry with some clear or sunny intervals, perhaps a few light showers in north, wintry on the Munro tops.

Chance of cloud-free hill tops

90%

Maximum wind speed expected

Southerly 10-15mph becoming southwesterly 25-30mph.

Temperature

  • At 800m Minus 2 rising to Plus 2 Celsius
  • Glen Plus 2 rising to Plus 11 Celsius
  • Freezing level 500m rising 900m

Low cloud and visibility

Generally no low cloud and good visibility, perhaps some patches of cloud at 1200m in any showers.

Mountain weather information

Thu 7 May

Sunrise:
Sunset:

Still a lot of dry weather but cloudier at times with the chance of some showers, with snow above 1000m. Strong south to southwest breeze.

Fri 8 May

Sunrise:
Sunset:

Cloudy with occasional showers, freezing level above summits.

Sat 9 May

Sunrise:
Sunset:

Low confidence - some light showers at first with snow above 800m then brightening up. Freshening northeasterly 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