Brecon Beacons
Includes all higher summits in the southern half of Wales: the Bannau Brycheiniog / Brecon Beacons National Park, southern Cambrian Mountains and highest Preseli hills.
Wednesday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Viewing Forecast For
Brecon Beacons
Wednesday 30th September 2026
Last updated
Tue 29th Sep 26 at
4:15PM
Summary for all mountain areas
Heavy rain sweeps northeast across England and Scotland through morning: persistent falls, locally torrential with risk thunder, particularly west Scotland early hours. Rain soon clears Wales, more widely by midday, bright skies follow, trending cooler and showers developing. Widely windy, gales in Scotland.
Headline for Brecon Beacons
Windy; heavy rain at dawn, then sun and increasing showers
How windy? (On the summits)
Southerly 25 to 35mph, at times approaching 45-50mph at least in gusts on higher tops; lessening trend late in the day.
Effect of the wind on you?
Walking impeded in exposure likely all day, more strenuous moments with strongest gusts challenging stability with notable wind chill.
How Wet?
Increasingly showery
A band of heavy rain from dawn soon clears northeastward, followed by a brief drier window. Showers reform, gradually more frequent and clustering together, some sustained heavy falls later with risk isolated thunder.
Cloud on the hills?
Varying over higher tops
Cloud base lifting early morning with breaks to upper slopes, perhaps clear off tops for a periods. Cloud banks will come and go over higher slopes as showers return, best of extended clear windows typically toward eastern mid-Wales.
Chance of cloud free summits?
50%, lowering through afternoon
Sunshine and air clarity?
Soon mostly sunny, a patchwork of cloud forming, trending more often cloudy later. Visibility varying, at times very good, but hazier coasts and reducing in rain.
How Cold? (at 750m)
Humid 13C or above from dawn, soon lowering but varying through the day, finishing at a fresher 10C. Feeling near to freezing in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 1st October 2026
Last updated
Tue 29th Sep 26 at
4:15PM
How windy? (On the summits)
Southwesterly 15-25mph, some gustiness to start. Trending stronger later, further strengthening overnight.
Effect of the wind on you?
Fairly small, some nuisance gusts around showers with a chilly feeling. Deteriorating somewhat overnight.
How Wet?
Showers gradually easing
Showers stream in from the southwest at dawn, frequent with some heavy bursts. Showers will gradually scatter and become lighter, best chance dry conditions towards Black Mountains later in the day.
Cloud on the hills?
Lifting to tops and increasingly breaking
Starting fairly extensive above 700m, banks as low as 500m on southwestern aspects in showers. Bases will vary in an out of showers, but a lifting trend, north slopes soon clear, and increasingly just patches on western tops as the day goes.
Chance of cloud free summits?
Rising to 70%
Sunshine and air clarity?
Patchy sunshine, extended sunny spells breaking out north and east. Good visibility, a little haze building.
How Cold? (at 750m)
9C, rising a degree, possibly towards 11C Black Mountains.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 2nd October 2026
Last updated
Tue 29th Sep 26 at
4:15PM
How windy? (On the summits)
Southwesterly 25-30mph, most of the day, sometimes gusting stronger.
Effect of the wind on you?
Ease of walking impacted in exposure most of the day, some buffeting gusts at times.
How Wet?
Rain most of the day
Persistent rain western Brecon Beacons towards Pembrokeshire much of the day, a few patchier windows eastward, though some risk of more broadly constant rain, local heavy falls likely.
Cloud on the hills?
Fairly extensive
High tops in cloud likely all day, and areas west of Pen-Y-Fan likely shrouded above 700m, often lower. Just in the morning, cloud more patchy, perhaps some clear layers towards Black Mountains, but cloud variably filling in extensively to middle or lower slopes, lowest south aspects.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Some chance a few bright glimpses, but more often cloudy. Hazy at best, and largely poor visibility on tops; chance improvements east.
How Cold? (at 750m)
9 or 10C.
Freezing Level
Above the summits.
Planning Outlook
Fresher, blustery south-southwesterlies from overnight Wednesday persist on Thursday: showery in the west early but trending drier and brighter widely. A new frontal system approaches late Thursday and overnight, then Friday will be a wetter day again; rain quite frequent with extensive cloud for many and quite blustery. On Saturday, higher pressure begins expanding from the south, increasingly settling the weather in England and Wales; temperatures generally mild, some cool nights when skies are clear, also sometimes feeling humid. The following week remains mixed, some settled windows in England and Wales with bright breaks east, but more often windy, particularly Scotland with periods of rain, the wind and rain expanding more widely at times.