Yr Eifl weather forecast

561 m · 1,840 ft · Prominence 429 m · 1 route

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Next 48 hours · summitNow

Routes up

Yr Eifl routes: 1 way to the top

Summit today

Is it safe to climb Yr Eifl today?

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Cloud inversion · 7 days

The chance of standing above a sea of cloud on Yr Eifl each morning this week, from overnight temperature, humidity and low cloud below the 561m summit.

Dark sky · 7 days

How dark the sky gets over Yr Eifl 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 07:08, sunset 16:55

9h 47m of daylight. Golden hour ends 07:58 and starts 16:03. From the summit you see the sun 07:02 to 16:59.

About Yr Eifl

Yr Eifl is a group of three summits on the north coast of the Llyn Peninsula. The main summit reaches 561m (1841ft) and has 429m of prominence, which makes it a Marilyn. Mynydd Graig Goch, the nearest higher hill, is 13.7km to the east. The eastern summit carries Tre'r Ceiri, one of the best preserved Iron Age hillforts in Britain, and quarrymen have cut away much of the northern summit.

The standard route starts from the car park above Llithfaen on the road to Nant Gwrtheyrn. A track climbs to the bwlch between the summits, and from there a steep path climbs to the main top. Many walkers add a detour to Tre'r Ceiri.

The summit has a trig pillar and a large cairn with shelters. You look along the Llyn coast, across Caernarfon Bay to Anglesey, and inland to Snowdonia.

Yr Eifl is 561 m (1,840 ft) high with 429 m of prominence. It is in Anglesey and the Lleyn Peninsula, Wales. OS grid reference SH364447. It is the highest of the 19 summits Peakify lists in Anglesey and the Lleyn Peninsula. The nearest summits are Mynydd Carnguwch (2.1 km), Gyrn Ddu (4.1 km) and Carreglefain (5.5 km).

Where do you start Yr Eifl?

Most walkers start from the car park above Llithfaen on the road to Nant Gwrtheyrn.

Can you visit Tre'r Ceiri on the same walk?

Yes. The hillfort is on the eastern summit and is a short detour from the main route.

Is Yr Eifl suitable for beginners?

Yes, in good weather. It is a short climb on tracks and paths, with a steeper final section.

Is Yr Eifl a Marilyn?

Yes. It has 429m of prominence.

How high is Yr Eifl?

Yr Eifl is 561 metres high with 429 metres of prominence.

Where is Yr Eifl?

Yr Eifl is listed in Anglesey and the Lleyn Peninsula, Wales.

Are there routes for Yr Eifl?

Peakify lists 1 route for Yr Eifl, including available distance, ascent, start point, and difficulty details.

Is it safe to climb Yr Eifl 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 Yr Eifl?

The page includes cached mountain forecast context, snow outlook, dark-sky signals, cloud-inversion information, sunrise, sunset, and summit planning details where available.

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