Southwest Highlands

This evening forecast

Cloudy with outbreaks of rain through the evening, perhaps turning heavy at times later in the evening towards Lochaber and Moidart. Quite extensive cloud down to 400-600m at first, gradually becoming more broken with some clear spells developing. Strengthening west to southwest winds, gusts reaching 50-60mph at times.

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.

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

Cloud, rain, gales in morning. Drier, bright afternoon.

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
Weather (at 800m)	Weather symbols
Chance of precipitation (at 800m)	Chance of precipitation	50%	≥95%	≥95%	80%	50%	10%	10%	40%

Wind direction and speed

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1300m	1300m	SW 45mph knots SW 45mph	SW 41mph knots SW 41mph	SW 41mph knots SW 41mph	W 30mph knots W 30mph	W 25mph knots W 25mph	W 21mph knots W 21mph	W 19mph knots W 19mph	SW 18mph knots SW 18mph
900m	900m	SW 28mph knots SW 28mph	SW 26mph knots SW 26mph	W 29mph knots W 29mph	W 25mph knots W 25mph	W 20mph knots W 20mph	W 19mph knots W 19mph	W 17mph knots W 17mph	W 14mph knots W 14mph
600m	600m	SW 36mph knots SW 36mph	SW 31mph knots SW 31mph	SW 33mph knots SW 33mph	W 21mph knots W 21mph	W 17mph knots W 17mph	W 17mph knots W 17mph	W 15mph knots W 15mph	SW 14mph knots SW 14mph
300m	300m	SW 18mph knots SW 18mph	SW 17mph knots SW 17mph	SW 17mph knots SW 17mph	W 12mph knots W 12mph	W 11mph knots W 11mph	W 11mph knots W 11mph	W 11mph knots W 11mph	SW 7mph knots SW 7mph
Glen	Glen	SW 12mph knots SW 12mph	SW 11mph knots SW 11mph	SW 12mph knots SW 12mph	W 10mph knots W 10mph	W 9mph knots W 9mph	W 11mph knots W 11mph	W 9mph knots W 9mph	SW 6mph knots SW 6mph

Wind gust

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1300m	1300m	55mph	51mph	51mph	38mph	33mph	28mph	26mph	24mph
900m	900m	37mph	34mph	38mph	33mph	27mph	27mph	24mph	19mph
600m	600m	46mph	39mph	42mph	29mph	24mph	24mph	21mph	19mph
300m	300m	27mph	27mph	27mph	19mph	17mph	18mph	17mph	12mph
Glen	Glen	26mph	24mph	25mph	22mph	18mph	20mph	17mph	13mph

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1300m	1300m	5 degrees Celsius	7 degrees Celsius	8 degrees Celsius	5 degrees Celsius	5 degrees Celsius	5 degrees Celsius	5 degrees Celsius	4 degrees Celsius
900m	900m	8 degrees Celsius	9 degrees Celsius	9 degrees Celsius	8 degrees Celsius	9 degrees Celsius	10 degrees Celsius	8 degrees Celsius	7 degrees Celsius
600m	600m	10 degrees Celsius	10 degrees Celsius	11 degrees Celsius	10 degrees Celsius	11 degrees Celsius	12 degrees Celsius	11 degrees Celsius	9 degrees Celsius
300m	300m	13 degrees Celsius	12 degrees Celsius	13 degrees Celsius	12 degrees Celsius	13 degrees Celsius	14 degrees Celsius	13 degrees Celsius	12 degrees Celsius
Glen	Glen	14 degrees Celsius	14 degrees Celsius	14 degrees Celsius	14 degrees Celsius	16 degrees Celsius	17 degrees Celsius	16 degrees Celsius	14 degrees Celsius
Freezing Level	Freezing Level	3400m	3100m	3200m	2200m	2000m	2000m	2000m	2100m

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1300m	1300m	-2 degrees Celsius	0 degrees Celsius	2 degrees Celsius	-1 degrees Celsius	0 degrees Celsius	0 degrees Celsius	0 degrees Celsius	-1 degrees Celsius
900m	900m	3 degrees Celsius	4 degrees Celsius	5 degrees Celsius	3 degrees Celsius	5 degrees Celsius	6 degrees Celsius	5 degrees Celsius	4 degrees Celsius
600m	600m	5 degrees Celsius	6 degrees Celsius	7 degrees Celsius	6 degrees Celsius	7 degrees Celsius	8 degrees Celsius	8 degrees Celsius	6 degrees Celsius
300m	300m	10 degrees Celsius	9 degrees Celsius	10 degrees Celsius	10 degrees Celsius	11 degrees Celsius	12 degrees Celsius	11 degrees Celsius	10 degrees Celsius
Glen	Glen	12 degrees Celsius	12 degrees Celsius	12 degrees Celsius	13 degrees Celsius	14 degrees Celsius	15 degrees Celsius	14 degrees Celsius	13 degrees Celsius
Freezing Level	Freezing Level	3400m	3100m	3200m	2200m	2000m	2000m	2000m	2100m

Additional weather information

Meteorologist's view

Strong winds with summit gales in the morning will give difficult walking conditions with a risk of being blown off balance. Navigation could be challenging with energy output significantly increased when walking into the wind. Widespread low cloud in the morning will make for difficult navigation at times. Heavy rain in the early hours may leave some routes and watercourses saturated, suitable footwear should be taken. Where the sun breaks out in the afternoon UV levels will be high so suitable protection is advised.

Weather

Cloudy with occasionally heavy rain in the morning and gale-force summit winds. Rain turns more showery later through the morning with some brighter spells developing and winds beginning to ease. Mostly dry in the afternoon with some bright or sunny spells developing, just the small chance of the odd light shower. Low cloud returning from the west in the late evening with some outbreaks of light rain or drizzle.

Chance of cloud-free hill tops

Little chance early morning. Rising to 40% by midday, 70% by mid-afternoon. Falling back to 30% or less in late evening.

Low cloud and visibility

Widespread cloud down to 300-500m and visibilities falling poor in hill fog and occasionally heavy rain in the early morning. This gradually lifting and breaking up after dawn allowing for some clear spells to develop between showers, then summits often clear in the afternoon with cloud above all but the highest summits. Widespread low cloud feeds in from the west again in the late evening.

Ground conditions

No recent ground conditions report available.

Mountain weather information

Weather

Cloudy in the morning with showery rain spreading east, heavy at times. This starts to clear southeast through the afternoon allowing some bright or sunny spells to develop, along with a scattering of showers, these may be heavy at times.

Chance of cloud-free hill tops

Little chance much of the morning. Rising to 25% by early afternoon, best chances in the north. Rising to 70% by evening.

Maximum wind speed expected

West veering northwest 25-35mph.

Temperature

At 800m 7C rising to 10C by day.
Glen 12C rising to 20C by day.
Freezing level Above summits.

Low cloud and visibility

Widespread cloud down to 300-500m in the morning with visibilities falling poor in hill fog or rain. This cloud gradually breaks up through the afternoon to leave largely clear summits and good visibilities by evening.

Ground conditions

No recent ground conditions report available.

Mountain weather information

Mon 27 Jul

Sunrise: 05:11

Sunset: 21:43

Dry, bright start. Cloud and rain arriving from west in afternoon, perhaps heavy and persistent for a time. Fresh west to southwest winds.

Tue 28 Jul

Sunrise: 05:13

Sunset: 21:41

Low confidence. Likely cloudy with showers or longer spells of rain. Fresh west to southwest winds.

Wed 29 Jul

Sunrise: 05:15

Sunset: 21:39

Low confidence. Again likely cloudy with showers or longer spells of rain. Fresh west to southwest winds.

Mountain weather

Southwest Highlands

Confidence

This evening forecast

Mountain weather hazards

Poor Visibility

Strong Sunlight

Gales

Mountain weather forecast

Wind direction and speed

Wind gust

Additional weather information

Meteorologist's view

Weather

Chance of cloud-free hill tops

Low cloud and visibility

Ground conditions

Mountain weather information

Weather

Chance of cloud-free hill tops

Maximum wind speed expected

Temperature

Low cloud and visibility

Ground conditions

Mountain weather information

Mon 27 Jul

Tue 28 Jul

Wed 29 Jul

Summit specific forecast

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Mountain weather

Southwest Highlands

Confidence

This evening forecast

Mountain weather hazards

Medium likelihood: 2 weather hazards

Poor Visibility

Strong Sunlight

Low likelihood: 1 weather hazards

Gales

Mountain weather forecast

Wind

Wind direction and speed

Wind gust

Temperature

Feels Like Temperature

Additional weather information

Meteorologist's view

Weather

Chance of cloud-free hill tops

Low cloud and visibility

Ground conditions

Mountain weather information

Weather

Chance of cloud-free hill tops

Maximum wind speed expected

Temperature

Low cloud and visibility

Ground conditions

Mountain weather information

Mon 27 Jul

Tue 28 Jul

Wed 29 Jul

Summit specific forecast

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