Manod Mawr weather forecast.

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

Seven-day Manod Mawr forecast.

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

High confidence
Wind20 mph W Gusts28 mph Feels4°C Rain0.0 mm Cloud-free summit88% Cloud base1,080 m Freezing level2,120 m Daylight05:40–21:01 · 15.3 h

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

A fine day on Manod Mawr: summit wind broadly 10-25 mph, with gusts 25-35 mph early in the morning (fresh and blowy). Any cloud sits well above the tops (base 800-1600 m) - clear summits. Cloud is likely to hang lowest on western slopes; the eastern side should see somewhat higher bases and better breaks. Little or no rain expected.

High confidence
Wind16 mph SW Gusts22 mph Feels9°C Rain0.0 mm Cloud-free summit93% Cloud base1,549 m Freezing level2,990 m Daylight05:42–20:59 · 15.3 h

Cloud-free timing: Around 75% early, improving to around 100% later.

A fine day on Manod Mawr: summit wind broadly 5-20 mph, with gusts 15-25 mph around midday (fresh and blowy). Any cloud sits well above the tops (base 1000-1600 m) - clear summits. Little or no rain expected. 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.

Medium confidence
Wind20 mph SW Gusts28 mph Feels10°C Rain0.0 mm Cloud-free summit100% Cloud base1,337 m Freezing level3,500 m Daylight05:44–20:57 · 15.2 h

A fine day on Manod Mawr: summit wind broadly 10-25 mph, with gusts 25-35 mph during the afternoon (fresh and blowy). Any cloud sits well above the tops (base 1100-1400 m) - clear summits. Little or no rain expected. Bright spells with UV up to 5 - sunscreen on exposed skin. Confidence moderate - the forecast models differ somewhat (the forecast models show a moderate spread), so treat the numbers as a guide. Treat the cloud base with caution - the models disagree on humidity, so it could be well above or below the figure given.

High confidence
Wind13 mph SW Gusts18 mph Feels14°C Rain0.0 mm Cloud-free summit100% Cloud base1,488 m Freezing level3,390 m Daylight05:45–20:55 · 15.2 h

A fine day on Manod Mawr: summit wind broadly 5-20 mph, with gusts 15-25 mph during the evening (a moderate breeze). Any cloud sits well above the tops (base 1200-1700 m) - clear summits. Little or no rain expected. Bright spells with UV up to 6 - sunscreen on exposed skin. 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 N Gusts21 mph Feels8°C Rain0.0 mm Cloud-free summit80% Cloud base1,512 m Freezing level3,539 m Daylight05:47–20:53 · 15.1 h

Cloud-free timing: Around 25% early, improving to around 100% later.

A fine day on Manod Mawr: summit wind broadly 5-20 mph, with gusts 15-25 mph early in the morning (fresh and blowy). Little or no rain expected. Bright spells with UV up to 6 - sunscreen on exposed skin. Low confidence - the models disagree markedly (the forecast models are widely spread); check again nearer the time.

High confidence
Wind20 mph S Gusts25 mph Feels15°C Rain0.0 mm Cloud-free summit100% Cloud base1,566 m Freezing level3,668 m Daylight05:49–20:51 · 15.0 h

A fine day on Manod Mawr: summit wind broadly 10-25 mph, with gusts 20-30 mph early in the morning (fresh and blowy). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 1500-1800 m) - clear summits. Little or no rain expected. Bright spells with UV up to 6 - sunscreen on exposed skin.

Low confidence
Wind23 mph SW Gusts29 mph Feels16°C Rain0.0 mm Cloud-free summit80% Cloud base1,512 m Freezing level3,979 m Daylight05:50–20:49 · 15.0 h
Thunder risk: slight

from the afternoon into overnight. Leave exposed summits and ridges if thunder develops.

Cloud-free timing: Around 100% early, falling to around 40% later.

A fine day on Manod Mawr: summit wind broadly 15-30 mph, with gusts 25-35 mph during the evening (fresh and blowy). Thunder watch from the afternoon into overnight: a small but credible risk is present. Watch for growing clouds and leave exposed tops if thunder develops. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Little or no rain expected. Bright spells with UV up to 6 - sunscreen on exposed skin. Low confidence - the models disagree markedly (the forecast models are widely spread); 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

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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.