Perthshire Highlands Mountain Weather Forecast

Mountain Weather brief

Perthshire Highlands

Saturday 29 August 2026 · Schiehallion, Ben Lawers and the Perthshire ranges

Confidence: Medium

Why: Forecast models disagree materially on rainfall amounts.

What matters most

A risk of patchy rain or drizzle. Light northeasterly wind, with many tops staying clear.

High-ground wind · 900 m5–10 mph northeasterly Gusts · 900 m10 mph Cloud base900-1400 m Feels like · 900 m6°C

Morning · 07:00–13:00GoodSome early summit cloud is possible; rain timing remains uncertain.

75/100

Afternoon & evening · 13:00–22:00GoodSummit breaks should improve later; rain timing remains uncertain.

82/100

Conservative regional grades across representative summits, so one sheltered hill does not overstate the wider area.

High-ground wind (900 m)

Northeasterly 5-10 mph at 900 m. Gusts reaching around 10 mph at 900 m, with locally higher values possible on the most exposed tops. Little overall change through the day.

Walking impact

Little effect on walking, although exposed tops may still feel chilly.

Rain and showers

The odd passing shower, otherwise dry. Forecast models disagree on when the rain may arrive.

Cloud-free summits

Around 75%. Around 55% early, improving to around 75% later.

Cloud and visibility

Cloud bases mostly around 900-1400 m. Bases should tend to lift as the day goes on. Cloud bases are likely to remain high, but some forecast models are much cloudier, so more extensive summit cloud remains a credible outcome. Many higher summits should stay clear, with useful views for much of the day.

Temperature and wind chill

Around 9°C at 900 m, feeling like 6°C in the wind.

Freezing level

Above the summits.

Daylight

Sunrise 06:12 — Sunset 20:21 — about 14.2 hours daylight.

Overnight · 6 p.m.–9 a.m.Wild campingBetaA damp or wet night is likely, with about 5.5 mm before pack-up. 64/100Mixed · 600 m View detailsHide details

Regional night beginning Saturday 29 August 2026

Full regional overnight outlook

Across representative hills, open-hillside camping looks mixed around 600 m (64/100). A wet night is likely, with around 6 mm indicated between pitching and packing up.

Overnight rain5.5 mmOpen ground · 600 m7 mph · gusts 15 mphMorning pack-upDampness possible

Elevation reference (open ground)

300 m64/100 · mixed

Wind / gust: 6 / 13 mph
Coldest: 10.2°C
In cloud: Unlikely
Condensation: High

600 m64/100 · mixed

Wind / gust: 7 / 15 mph
Coldest: 9.4°C
In cloud: 44% of night
Condensation: High

900 m64/100 · mixed

Wind / gust: 9 / 18 mph
Coldest: 7.7°C
In cloud: 44% of night
Condensation: High

Open-hillside guidance across representative hills. Local shelter, ridges, tent design and the exact pitch can change conditions substantially. How to use the wild-camping forecast.

Daytime · exposed rockClimbing & scramblingBetaWet rock is likely on some representative hills. 55/100Mixed · Mixed View detailsHide details

Across representative exposed-rock terrain

Full regional climbing & scrambling outlook

Conditions for exposed scrambling across the area look mixed (55/100). Rain is likely to leave rock wet; polished slabs, vegetation and drainage lines may be notably worse. Mapped summit-point geology across the representative hills includes psammite, pelite or semipelite, quartzite and granite, gneiss or gabbro; moisture response can therefore vary substantially between crags and routes.

Rock surfaceWet rock likelyExposed gust10 mphRain0.4 mm

Mapped rock across sampled summits3 broad familiesRepresentative summit samples

psammite, pelite or semipelite 62% 5 representative summitsDry quartz-rich bands can be grippy, while mica-rich or foliated sections, lichen and vegetation may become slippery when wet.quartzite 25% 2 representative summitsUsually hard and grippy when dry and often reasonably positive when damp, although wet lichen and smooth slabs can still be slippery.granite, gneiss or gabbro 12% 1 representative summitGenerally grippy when dry and often still positive when damp, but wet slabs, lichen, polish and drainage lines can remain slippery.

Representative summit-point samples across the region; individual crags and routes may differ.

Generic exposed hands-on-rock terrain across representative summits; mapped summit-point geology is a broad regional sample, not a named-route survey. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Updated 29 August 2026 at 04:40 UTC. See typical weekly and monthly conditions for Perthshire Highlands.

Perthshire Highlands mountain weather forecast.