Routes up
Carnedd y Filiast routes: 1 way to the top
Llyn Celyn northern uplandsHiking · 5.6 km one way · 440 m ascent · ~1h 50m · from Llyn Celyn north-shore public trackHard
Summit today
Is it safe to climb Carnedd y Filiast today?
Carnedd y Filiast today (updated 23:32, 27 Oct): up to 10°C at the summit, feeling as cold as 1°C, summit wind 42 mph gusting 53 mph, 100% chance of rain. A poor day for the hills. Best day this week: Saturday, summit gusts 11 mph.
Carnedd y Filiast weather today
Slight rain, up to 10°C at the summit, feeling as cold as 1°C, summit wind 42 mph gusting 53 mph, 100% chance of rain. Rated Poor.
Carnedd y Filiast weather tomorrow
Thursday 29 October: mostly dry, up to 10°C at the summit, feeling as cold as 2°C, summit wind 32 mph gusting 40 mph, 8% chance of rain. Rated Marginal.
Carnedd y Filiast weather this weekend
Saturday 31 October: fog, up to 8°C at the summit, feeling as cold as -3°C, summit wind 9 mph gusting 11 mph, 2% chance of rain. Rated Good.
Sunday 1 November: fog, up to 6°C at the summit, feeling as cold as -3°C, summit wind 19 mph gusting 23 mph, 2% chance of rain. Rated Good.
Carnedd y Filiast summit forecast, next 7 days
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| TodaySlight rain | Poor | 10°/6° | 1° | 42/53 | 100% |
|---|
| TomorrowLight drizzle | Marginal | 10°/6° | 2° | 32/40 | 8% |
|---|
| Fri 30Fog | Marginal | 10°/-1° | -3° | 30/37 | 2% |
|---|
| Sat 31Fog | Good | 8°/-1° | -3° | 9/11 | 2% |
|---|
| Sun 1Fog | Good | 6°/-1° | -3° | 19/23 | 2% |
|---|
| Mon 2Overcast | Good | 6°/2° | -1° | 18/23 | 2% |
|---|
| Tue 3Fog | Good | 8°/-2° | -5° | 17/21 | 2% |
|---|
Carnedd y Filiast 14-day weather forecast: days 8 to 13, less certain
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| Wed 4Fog | Good | 8°/1° | 0° | 9/15 | 2% |
|---|
| Thu 5Fog | Good | 6°/3° | 1° | 10/19 | 4% |
|---|
| Fri 6Overcast | Good | 6°/2° | -1° | 12/19 | 4% |
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| Sat 7Fog | Good | 6°/1° | -1° | 13/18 | 18% |
|---|
| Sun 8Overcast | Good | 6°/1° | -1° | 12/15 | 22% |
|---|
| Mon 9Fog | Good | 6°/-1° | -3° | 6/7 | 24% |
|---|
Cloud inversion · 7 days
The chance of standing above a sea of cloud on Carnedd y Filiast each morning this week, from overnight temperature, humidity and low cloud below the 669m summit.
Dark sky · 7 days
How dark the sky gets over Carnedd y Filiast 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 07:05, sunset 16:51
9h 47m of daylight. Golden hour ends 07:55 and starts 16:00. From the summit you see the sun 06:59 to 16:56.
Nearby summits
Close to Carnedd y Filiast
About Carnedd y Filiast
This Carnedd y Filiast lies in the wide moorland between the Migneint and the Arenigs, north of Llyn Celyn. Waun Garnedd-y-Filiast sits 0.7 km north and Carnedd Llechwedd-llyfn 1.3 km west. The nearest higher hill is Arenig Fach, 5.9 km south-west.
The ground is open bog and heather with few paths, and the tops are broad. It feels remote, and you need to navigate with a map in poor visibility.
Carnedd y Filiast is 669 m (2,195 ft) high with 316 m of prominence. It is in Snowdonia, Wales. It is the 85th highest of the 152 summits Peakify lists in Snowdonia. The nearest summits are Waun Garnedd-y-Filiast (0.7 km), Foel-boeth (1.6 km) and Carnedd Llechwedd-llyfn (1.3 km).
Is this the same Carnedd y Filiast as the one in the Glyderau?
No. This one stands on the moors north of Llyn Celyn, far from the Glyderau summit of the same name.
Can you climb Carnedd y Filiast and Carnedd Llechwedd-llyfn together?
Yes. Carnedd Llechwedd-llyfn is 1.3 km west over open moor.
Is Carnedd y Filiast a Marilyn?
Yes. It has 316 m of prominence and is also a Hewitt and a Nuttall.
How high is Carnedd y Filiast?
Carnedd y Filiast is 669 metres high with 316 metres of prominence.
Where is Carnedd y Filiast?
Carnedd y Filiast is listed in Snowdonia, Wales.
Are there routes for Carnedd y Filiast?
Peakify lists 1 route for Carnedd y Filiast, including available distance, ascent, start point, and difficulty details.
Is it safe to climb Carnedd y Filiast 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 is the weather on Carnedd y Filiast tomorrow?
Thursday 29 October: mostly dry, up to 10°C at the summit, feeling as cold as 2°C, summit wind 32 mph gusting 40 mph, 8% chance of rain. Rated Marginal.
What is the weather on Carnedd y Filiast this weekend?
Saturday 31 October: fog, up to 8°C at the summit, feeling as cold as -3°C, summit wind 9 mph gusting 11 mph, 2% chance of rain. Rated Good. Sunday 1 November: fog, up to 6°C at the summit, feeling as cold as -3°C, summit wind 19 mph gusting 23 mph, 2% chance of rain. Rated Good.
What weather information is shown for Carnedd y Filiast?
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.
