Corn Du, Pen y Fan. the shortcut path from the col runs left-right

08-Apr-11 • Andrew Murphy

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08-Apr-11 • Andrew Murphy

swcwalk278, swcwalks, walkicon


08-Apr-11 • Andrew Murphy

swcwalk278, swcwalks, walkicon


08-Apr-11 • Andrew Murphy

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The way to Waun Rydd

08-Apr-11 • Andrew Murphy

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08-Apr-11 • Andrew Murphy

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Llyn Cwm Llwch from Escarpment on way up to Corn Du

SWC Walk 278 Breacon Beacons Horseshoe - Bannau Brycheiniog (Ascent from Storey Arms Car Park)

29-Jul-16 • thomasgrabow on Flickr

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Brecon Beacons (Pen y Fan) Horseshoe from Neuadd Reservoir walk

A classic horseshoe walk of the Brecon Beacons (Pen y Fan, Corn Du, Fan y Big) around a glacial valley, with an extension to Waun Rydd

Hiking Weather

10 Day Forecast for Neuadd Reservoir

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A damp start, but brighter spells developing through the day.


Breezy and rather cloudy with occasional rain or drizzle through the morning. Generally brighter in the afternoon, with winds easing too. Feeling warm and humid, especially in any sunshine that develops. Maximum Temperature 22C.


A mostly dry night with clear spells at first. Cloud increasing during the early hours, with a few spots of drizzle possible, mostly over the higher ground. Mild. Minimum Temperature 13C.


Mostly cloudy, but some bright or sunny breaks will develop at times during the afternoon. A few light showers are also possible. Staying humid and feeling warm once again. Maximum Temperature 24C.

Outlook for Tuesday to Thursday:

Humid and often rather cloudy on Tuesday. However, feeling warm in any spells of sunshine. A band of rain will move south late Wednesday into Thursday, with fresher weather following.

Day 6 to 15

Thursday is likely to see a fresher day across the UK with a mixture of sunshine and showers. Frontal cloud and rain may linger across southern England for a time but should clear the UK completely by the end of the day. Some good spells of sunshine developing across the south with occasional heavy, blustery showers in the north. Through the rest of the week and weekend there will probably be a good deal of dry, bright or sunny weather, especially in the south, while the far west and northwest will have some thicker cloud and rain at times. This weather pattern is quite likely to continue through the rest of the period, with temperatures probably around normal, but perhaps rather cool in the north and northwest.

Day 16 to 30

During this period it looks likely that the weather pattern will only change slowly. Areas of high pressure and associated settled weather are likely to dominate across the south and southeast, bringing generally dry and bright weather here. More changeable conditions with outbreaks of rain and strong winds are likely across the north and northwest, perhaps extending southeastwards at times. Through September, confidence in the forecast decreases. However, we will probably see longer dry and settled spells at times, these perhaps becoming more dominant than previously in the north and northwest. Temperatures by day are likely to be generally warmer than average, but there will be an increasing chance of chillier nights.

Met Office : WL : 2018-08-19T01:53:16

Issued: 0600 on 2018-08-19 for Brecon Beacons


Low cloud and some rain but becoming drier in the afternoon. Summit gales easing.

Summary Outbreaks of rain or drizzle will continue through most of the morning. The rain or drizzle will turn light and patchy by early afternoon before dying out to allow some late bright spells in the evening.
Chance of Cloud free tops Almost nil. Extensive cloud above 200 or 300m but cloud base rising to around 600m during the afternoon and breaking up a little to leave a few clear summits in the evening.
Ground conditions
Visibility Often very poor through the morning with rain and low cloud. Improving under the cloud base through the afternoon but remaining hazy with distant hills obscured from view.
Gales: Low likelihood
Poor Visibility: High likelihood
Heavy Persistent Rain: Low likelihood
Strong Sunlight: Low likelihood
060708 091011 121314 151617 181920 212223
Weather Drizzle Drizzle Cloudy Cloudy Sunny intervals Partly cloudy (night)
Rain >95% 80% 30% 30% 30% 20%
Temp (tops) 14 14 15 15 15 14
Wind (tops) 32 25 20 17 14 11
Freezing Level 3600m 3300m 3300m 3300m 3400m 3400m
Day 1

Dry with clear spells overnight but cloud increasing by dawn. Another rather cloudy and humid day with patchy rain or drizzle in the morning. Mainly dry with a few sunny intervals and isolated showers in the afternoon.

Ice Well above summits.
Visibility Often poor in the morning with low cloud and patchy rain then improving in the afternoon but haze will obscure distant hills.
Wind South or Southwest 15-20mph.
Temp Plus 11 rising to 14 Celsius. (at high level)
Day 2

Cloudy with patchy rain at first but dry and bright for most of the day. Fresh southwesterly winds, perhaps strong later.

Day 3

Rain clearing overnight then it is likely to be mostly dry with bright spells and light winds although persistent rain may arrive late in the day.

Day 4

Unsettled conditions with spells of rain are likely but there is a lot of uncertainty by this stage.

Data: Met Office