A mixed day on Beinn a' Chaorainn (Cairngorms): summit wind broadly 15-35 mph, with gusts 35-45 mph early in the morning (gale-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 1000-1600 m - the top is likely to drift in and out of cloud, with the best chance of a view from around midday into the evening. Cloud will be lowest on the NW slopes, down to about 1400-1700 m; the SE side should be clearer, lifting to around 1600-1900 m. Little or no rain expected. Cold on top: air temperature broadly 2 to 6°C, feeling around -6 to -2°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 27-37 mph, so treat the headline as mid-range.
Beinn a' Chaorainn (Cairngorms) weather forecast.
1,082 m summit forecast for wind, cloud, rain and temperature. Updated from the Thursday 6 August 2026 model run.
Seven-day Beinn a' Chaorainn (Cairngorms) forecast.
Conditions can change quickly with height. Use the day-by-day summit detail below, then check again close to departure.
A rough, clagged-in day on Beinn a' Chaorainn (Cairngorms): summit wind broadly 35-50 mph, with gusts 60-70 mph during the afternoon (storm-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 500-800 m - expect the top to stay in cloud for most or all of the day, with no dependable break. Cloud will be lowest on the SW slopes, down to about 400-700 m; the NE side should be clearer, lifting to around 800-1100 m. Some rain is likely, with around 5-10 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 4 to 8°C, feeling around -4 to 0°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 39-54 mph, so treat the headline as mid-range.
A rough, clagged-in day on Beinn a' Chaorainn (Cairngorms): summit wind broadly 35-50 mph, with gusts 60-70 mph early in the morning (storm-force winds). Much calmer lower down - generally 15-25 mph in the valley, rising towards the tops. Cloud base 500-2000 m - the top is likely to drift in and out of cloud, with the best chance of a view from late afternoon into the evening. The cloud base is very changeable today - it could sit much higher or lower than that at times, so read the sky. Cloud will be lowest on the SW slopes, down to about 800-1100 m; the NE side should be clearer, lifting to around 1200-1500 m. Some rain is likely, with around 5-10 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 6 to 10°C, feeling around -2 to 2°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 36-54 mph, so treat the headline as mid-range.
A wild day on Beinn a' Chaorainn (Cairngorms): summit wind broadly 25-50 mph, with gusts 55-65 mph early in the morning (storm-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base 400-1500 m - the top is likely to drift in and out of cloud, with the best chance of a view from the morning into the evening. The cloud base is very changeable today - it could sit much higher or lower than that at times, so read the sky. Cloud will be lowest on the W slopes, down to about 1300-1600 m; the E side should be clearer, lifting to around 1600-1900 m. Little or no rain expected. 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 30 to 57 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.
A mixed day on Beinn a' Chaorainn (Cairngorms): summit wind broadly 5-15 mph, with gusts 15-25 mph early in the morning (a moderate breeze). Cloud base 1000-1600 m - the top is likely to drift in and out of cloud, with the best chance of a view from around midday into the evening. Little or no rain expected. Cold on top: air temperature broadly 2 to 6°C, feeling around -2 to 2°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 7 to 21 mph; check again nearer the time.
A mixed day on Beinn a' Chaorainn (Cairngorms): summit wind broadly 10-25 mph, with gusts 25-35 mph during the evening (fresh and blowy). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base 600-1300 m - the top is likely to drift in and out of cloud, with the best chance of a view from around midday into the evening. The cloud base is very changeable today - it could sit much higher or lower than that at times, so read the sky. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 12 to 33 mph; check again nearer the time.
A rough, clagged-in day on Beinn a' Chaorainn (Cairngorms): summit wind broadly 30-45 mph, with gusts 50-60 mph around midday (gale-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base 500-1500 m - the top is likely to drift in and out of cloud, with the best chance of a view from late afternoon into the evening. The cloud base is very changeable today - it could sit much higher or lower than that at times, so read the sky. Cloud will be lowest on the S slopes, down to about 900-1200 m; the N side should be clearer, lifting to around 1200-1500 m. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 21 to 57 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.
Forecast run: 2026-08-06
A forecast is part of the decision.
Mountain weather can differ sharply from conditions in the valley. Check official warnings, carry appropriate navigation and clothing, and be ready to change the plan.