Routes up
Carreg y Big routes: 4 ways to the top
North RidgeScrambling · 5km · 400 m ascent · ~1h 40m · from Car park at the baseGrade 1 scramble
The North Ridge offers a straightforward scramble with some exposure, suitable for those with a head for heights
South Face AscentScrambling · 4km · 350 m ascent · ~1h 25m · from Trailhead near the villageGrade 2 scramble
A more challenging route with steeper sections, requires careful navigation and scrambling skills
East RidgeScrambling · 6km · 450 m ascent · ~1h 55m · from Parking area by the old quarryGrade 3 scramble
The East Ridge is the most technical route with significant exposure, recommended for experienced scramblers
West ApproachHiking · 7km · 300 m ascent · ~1h 55m · from Main road laybyHiking
A scenic hiking route that avoids technical sections, suitable for walkers looking for a less challenging ascent
Summit today
Is it safe to climb Carreg y Big today?
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Cloud inversion · 7 days
The chance of standing above a sea of cloud on Carreg y Big each morning this week, from overnight temperature, humidity and low cloud below the 589m summit.
Dark sky · 7 days
How dark the sky gets over Carreg y Big each night this week, from cloud cover, moonlight and local light pollution.
Snow · 7 days
No snow is forecast at the summit in the next 7 days.
Sun today
Sunrise 07:04, sunset 16:52
9h 48m of daylight. Golden hour ends 07:54 and starts 16:01. From the summit you see the sun 06:58 to 16:56.
Nearby summits
Close to Carreg y Big
About Carreg y Big
Carreg y Big is 589 m (1,934 ft) high with 20 m of prominence. It is in Bala to Welshpool, Wales. OS grid reference SH927201. It is the 11th highest of the 42 summits Peakify lists in Bala to Welshpool. The nearest summits are Moel Llygoed (0.8 km), Bryn Glas (1.4 km) and Foel y Groes (3.5 km).
How high is Carreg y Big?
Carreg y Big is 589 metres high with 20 metres of prominence.
Where is Carreg y Big?
Carreg y Big is listed in Bala to Welshpool, Wales.
Are there routes for Carreg y Big?
Peakify lists 4 routes for Carreg y Big, including available distance, ascent, start point, and difficulty details.
Is it safe to climb Carreg y Big today?
Peakify rates each day on the summit Good, Marginal or Poor from the forecast summit wind, gusts, chance of rain and wind chill. Wind of 40 mph or gusts of 65 mph make it Poor; wind of 25 mph, gusts of 45 mph, a 60% chance of rain or a feels-like temperature of -8°C or below make it Marginal. Today's and tomorrow's ratings are at the top of this page. The rating covers the weather only: also check your route, daylight, kit and experience, and in winter whether you need an ice axe and crampons.
What weather information is shown for Carreg y Big?
The page includes cached mountain forecast context, snow outlook, dark-sky signals, cloud-inversion information, sunrise, sunset, and summit planning details where available.
Peakify is run by Sam Tyler, who has climbed Yr Wyddfa 22 times. The forecast refreshes every hour; how our forecast works.
