A mixed day on Great Cockup: summit wind broadly 15-30 mph, with gusts 30-40 mph early in the morning (strong winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 500-1100 m) - clear summits. Cloud will be lowest on the W slopes, down to about 500-800 m; the E side should be clearer, lifting to around 700-1000 m. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain.
Great Cockup weather forecast.
526 m summit forecast for wind, cloud, rain and temperature. Updated from the Thursday 6 August 2026 model run.
Seven-day Great Cockup forecast.
Conditions can change quickly with height. Use the day-by-day summit detail below, then check again close to departure.
A mixed day on Great Cockup: summit wind broadly 15-25 mph, with gusts 25-35 mph during the afternoon (strong winds). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 700-1100 m) - clear summits. Cloud will be lowest on the SW slopes, down to about 800-1100 m; the NE side should be clearer, lifting to around 900-1200 m. Little or no rain expected.
A mixed day on Great Cockup: summit wind broadly 20-35 mph, with gusts 35-45 mph around midday (gale-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 500-1100 m) - clear summits. Cloud will be lowest on the SW slopes, down to about 700-1000 m; the NE side should be clearer, lifting to around 900-1200 m. Little or no rain expected. Bright spells with UV up to 5 - sunscreen on exposed skin. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 24-36 mph, so treat the headline as mid-range.
A mixed day on Great Cockup: summit wind broadly 15-30 mph, with gusts 30-40 mph early in the morning (strong winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 500-1100 m) - clear summits. Cloud will be lowest on the SW slopes, down to about 700-1000 m; the NE side should be clearer, lifting to around 800-1100 m. 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 16 to 32 mph; check again nearer the time.
A mixed day on Great Cockup: summit wind broadly 0-15 mph, with gusts 10-20 mph around midday (a moderate breeze). Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Bright spells with UV up to 5 - sunscreen on exposed skin. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 5 to 17 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 fine day on Great Cockup: summit wind broadly 10-25 mph, with gusts 25-35 mph around midday (fresh and blowy). Any cloud sits well above the tops (base 400-1000 m) - clear summits. Little or no rain expected. Bright spells with UV up to 6 - sunscreen on exposed skin. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 11 to 36 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 Great Cockup: summit wind broadly 20-30 mph, with gusts 30-40 mph around midday (strong winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 700-1000 m) - clear summits. Little or no rain expected. Bright spells with UV up to 5 - sunscreen on exposed skin. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 15 to 42 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.