Càrn a' Choire Ghairbh weather forecast.

865 m summit forecast for wind, cloud, rain and temperature. Updated from the Thursday 6 August 2026 model run.

Seven-day Càrn a' Choire Ghairbh forecast.

Conditions can change quickly with height. Use the day-by-day summit detail below, then check again close to departure.

High confidence
Wind18 mph W Gusts25 mph Feels1°C Rain0.1 mm Cloud-free summit62% Cloud base1,045 m Freezing level2,230 m Daylight05:27–21:24 · 15.9 h

Cloud-free timing: Around 0% early, improving to around 83% later.

A mixed day on Càrn a' Choire Ghairbh: summit wind broadly 10-20 mph, with gusts 20-30 mph during the evening (fresh and blowy). The ground is likely to be saturated after recent rain. Expect boggy paths and rapid runoff if more rain arrives. Cloud base around 600-900 m in the morning, lifting to 1200-1500 m around midday and 1500-1800 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from late afternoon into the evening. Little or no rain expected. Cold on top: air temperature broadly 4 to 8°C, feeling around -2 to 2°C in the wind - wrap up.

Low confidence
Wind37 mph SW Gusts52 mph Feels2°C Rain25.1 mm Cloud-free summit0% Cloud base562 m Freezing level2,210 m Daylight05:29–21:21 · 15.9 h
High spate risk

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

A rough, clagged-in day on Càrn a' Choire Ghairbh: summit wind broadly 30-40 mph, with gusts 45-55 mph during the morning (gale-force winds). The ground is likely to be wet after recent rain. High spate risk based on forecast rainfall. Burns and unbridged crossings may become difficult or impassable. Most likely from around 01:00 until around 04:00 the following day. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base mostly around 500-800 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. A persistently wet day is possible, with around 20-40 mm indicated; local totals could vary considerably. Cold on top: air temperature broadly 6 to 10°C, feeling around 0 to 4°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 25 to 52 mph; check again nearer the time.

Low confidence
Wind46 mph SW Gusts65 mph Feels2°C Rain15.7 mm Cloud-free summit6% Cloud base685 m Freezing level2,910 m Daylight05:31–21:19 · 15.8 h
Spate watch

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

A rough, clagged-in day on Càrn a' Choire Ghairbh: summit wind broadly 35-50 mph, with gusts 60-70 mph during the morning (storm-force winds). The ground is likely to be saturated after recent rain. Expect boggy paths and rapid runoff if more rain arrives. There could be a spate risk based on forecast rainfall. Burns and unbridged crossings may rise quickly. Most likely from around 06:00 until around 03:00 the following day. Much calmer lower down - generally 15-25 mph in the valley, rising towards the tops. Cloud base mostly around 600-900 m through daylight. Expect clag for much of the day, though a brief clearance is possible during the evening. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. A persistently wet day is possible, with around 10-20 mm indicated; local totals could vary considerably. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 24 to 61 mph; check again nearer the time.

Low confidence
Wind27 mph W Gusts38 mph Feels2°C Rain3.1 mm Cloud-free summit25% Cloud base731 m Freezing level2,026 m Daylight05:33–21:17 · 15.7 h
Spate watch

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

Cloud-free timing: Around 0% early, improving to around 67% later.

A grey, cloudy day on Càrn a' Choire Ghairbh: summit wind broadly 20-30 mph, with gusts 35-45 mph early in the morning (strong winds). The ground is likely to be wet after recent rain. There could be a spate risk based on forecast rainfall. Burns and unbridged crossings may rise quickly. Most likely from around 00:00 until around 02:00 the following day. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 700-1000 m in the morning, lifting to 700-1000 m around midday and 900-1200 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from late afternoon into the evening. Cloud is likely to hang lowest on western slopes; the eastern side should see somewhat higher bases and better breaks. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 4 to 8°C, feeling around 0 to 4°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 18 to 40 mph; check again nearer the time.

Low confidence
Wind11 mph NW Gusts15 mph Feels3°C Rain0.0 mm Cloud-free summit75% Cloud base1,472 m Freezing level1,899 m Daylight05:35–21:14 · 15.7 h

Cloud-free timing: Around 0% early, improving to around 100% later.

A fine day on Càrn a' Choire Ghairbh: summit wind broadly 5-15 mph, with gusts 10-20 mph early in the morning (a moderate breeze). The ground is likely to be saturated after recent rain. Expect boggy paths and rapid runoff if more rain arrives. Cloud base around 500-800 m in the morning, lifting to 1500-1800 m around midday and 1500-1800 m by late afternoon. The top is likely to drift in and out of cloud; views may come and go. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 6 to 16 mph; check again nearer the time. Cloud base is the least certain part of this - the models are only moderately agreed, so it could sit a couple of hundred metres either way.

Low confidence
Wind15 mph S Gusts21 mph Feels5°C Rain0.0 mm Cloud-free summit75% Cloud base2,043 m Freezing level2,973 m Daylight05:37–21:12 · 15.6 h

Cloud-free timing: Around 0% early, improving to around 100% later.

A fine day on Càrn a' Choire Ghairbh: summit wind broadly 5-20 mph, with gusts 15-25 mph during the evening (fresh and blowy). The ground is likely to be wet after recent rain. Much calmer lower down - generally 0-5 mph in the valley, rising towards the tops. Cloud base around 800-1100 m in the morning, lifting to 2000-2300 m around midday and 2000-2300 m by late afternoon. The top is likely to drift in and out of cloud; views may come and go. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 8 to 19 mph; check again nearer the time.

Low confidence
Wind30 mph SW Gusts42 mph Feels10°C Rain4.4 mm Cloud-free summit44% Cloud base790 m Freezing level3,298 m Daylight05:39–21:10 · 15.5 h
Thunder risk: moderate

from the morning into the evening. Leave exposed summits and ridges if thunder develops.

Cloud-free timing: Around 100% early, falling to around 50% later.

A mixed day on Càrn a' Choire Ghairbh: summit wind broadly 20-35 mph, with gusts 35-45 mph around midday (gale-force winds). A meaningful thunderstorm risk is indicated from the morning into the evening. Avoid committing to exposed ridges if storms begin to build. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 1500-1800 m in the morning, lowering to 700-1000 m around midday and 700-1000 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view during the morning. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 18 to 52 mph; check again nearer the time.

Forecast run: 2026-08-06

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