Mountain weather
Southwest Highlands Mountain weather forecast table
Confidence
High confidence for a period of sunny spells and odd shower at times, with patches of low cloud, lower confidence for exact day to day details.
This evening forecast
Cloudy with some showery outbreaks of rain, gradually easing through the evening. Arran, Mull and Jura mainly dry with clear spells. Brisk east to southeasterly winds.
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.
Mountain weather forecast
Early patchy low cloud and light rain, clearing to a dry and warm day with sunny spells, occasional low cloud returning in the evening.
| 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|---|---|
Weather (at 800m) |
|
|
|
|
|
|
|
|
Chance of precipitation (at 800m) |
10% | <05% | 00% | 00% | 10% | 10% | 10% | 00% |
Wind direction and speed (mph)
Altitude above mean sea level
| 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|---|---|
| 1300m |
SE
19
|
SE
16
|
SE
9
|
SE
11
|
SE
14
|
SE
15
|
SE
15
|
SE
19
|
| 900m |
SE
15
|
SE
11
|
SE
10
|
SE
11
|
SE
12
|
SE
12
|
SE
13
|
SE
15
|
| 600m |
SE
9
|
SE
7
|
S
5
|
E
6
|
SE
7
|
S
9
|
SE
11
|
E
11
|
| 300m |
SE
4
|
E
5
|
E
3
|
E
5
|
SE
6
|
SE
6
|
SE
5
|
E
8
|
| Glen |
SE
4
|
E
2
|
S
2
|
E
3
|
SE
4
|
SW
3
|
S
3
|
SE
4
|
Wind gust (mph)
Altitude above mean sea level
| 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|---|---|
| 1300m | 24 | 19 | 12 | 16 | 20 | 20 | 21 | 25 |
| 900m | 20 | 15 | 14 | 16 | 18 | 18 | 18 | 21 |
| 600m | 12 | 10 | 7 | 10 | 11 | 14 | 15 | 15 |
| 300m | 8 | 7 | 5 | 9 | 11 | 11 | 9 | 16 |
| Glen | 8 | 5 | 6 | 6 | 9 | 7 | 6 | 9 |
Altitude above mean sea level
| 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|---|---|
| 1300m |
7°
|
6°
|
6°
|
7°
|
9°
|
10°
|
10°
|
8°
|
| 900m |
9°
|
9°
|
8°
|
10°
|
13°
|
14°
|
13°
|
10°
|
| 600m |
12°
|
11°
|
11°
|
12°
|
15°
|
16°
|
16°
|
14°
|
| 300m |
14°
|
13°
|
13°
|
15°
|
18°
|
18°
|
19°
|
16°
|
| Glen |
14°
|
14°
|
14°
|
17°
|
20°
|
20°
|
20°
|
16°
|
| Freezing Level |
2,800m
|
2,700m
|
2,500m
|
2,400m
|
2,700m
|
2,600m
|
2,500m
|
2,400m
|
Altitude above mean sea level
| 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
|---|---|---|---|---|---|---|---|---|
| 1300m |
2°
|
3°
|
4°
|
4°
|
6°
|
7°
|
7°
|
4°
|
| 900m |
6°
|
6°
|
6°
|
8°
|
10°
|
12°
|
11°
|
7°
|
| 600m |
11°
|
10°
|
10°
|
11°
|
14°
|
15°
|
14°
|
12°
|
| 300m |
13°
|
13°
|
13°
|
14°
|
17°
|
18°
|
18°
|
14°
|
| Glen |
14°
|
14°
|
14°
|
17°
|
20°
|
20°
|
20°
|
16°
|
Additional weather information
Met Office Aberdeen meteorologist's view
A mild sunny day so suitable UV protection and eyewear is advised.
Weather
A partly cloudy start with patchy light rain or drizzle towards Lochaber, Glen Coe and the Trossachs. Drier start in the south. This all clearing soon after dawn to leave a dry and sunny day, perhaps the odd isolated light shower developing in the afternoon. Low cloud pushing back in towards the evening.
Chance of cloud-free hill tops
60% soon rising to 90% or more.
Low cloud and visibility
Patchy low cloud before dawn in the north with bases down to 600m or so. This all clearing through the morning to leave a day with excellent visibilities, some cloud bases around 1200m or so. Low cloud with mist or fog below 400m returning in the evening.
Mountain weather information
Weather
Early cloud and patchy rain in the morning. Drier and brighter in the afternoon. Low cloud pushing in again overnight.
Chance of cloud-free hill tops
30% rising to 80% in the afternoon, falling back to 40% overnight.
Maximum wind speed expected
Easterly average speeds 10-15mph, but gusting 25-30mph on the highest summits.
Temperature
- At 800m Plus 7 rising to plus 12 Celsius
- Glen Plus 12 rising to plus 21 Celsius
- Freezing level Above summits.
Low cloud and visibility
Areas of low cloud below 500m in the morning, soon clearing after dawn, but reforming again over night. Otherwise excellent visibilities.
Mountain weather information
Fri 17 May
Sunrise:
Sunset:
Overnight cloud or mist clearing to leave a day of sunny spells and the odd heavy shower
Sat 18 May
Sunrise:
Sunset:
Some bright spells and scattered afternoon showers.
Sun 19 May
Sunrise:
Sunset:
Cloudier with patchy outbreaks of rain or drizzle.
Updated at:
Summit specific forecast
Mountain summit forecast map
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Key
Mountain summits
Other points of interest
Cluster of multiple stations
Including Ben Nevis, Glen Coe and the rest of Lochaber, Argyll including the Isles, Loch Lomond, Trossachs and Arran
For snow and avalanche hazard forecasts please visit Scottish Avalanche Information Service