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.
Friday's Forecast
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Brecon Beacons
Friday 21st August 2026
Last updated
Thu 20th Aug 26 at
4:00PM
Summary for all mountain areas
Early showers in north Scotland, then a dry afternoon, though cloud lingers on northern tops. Largely dry start for south Scotland and England, mostly clear hills, then afternoon showers forming, particularly over the Pennines. Showers on and off in Wales, some heavy bursts. Cool-to-mild and little wind.
Headline for Brecon Beacons
Western showers, more widely afternoon; light wind
How windy? (On the summits)
Northerly but variable, around 10mph and often less. Gusts form around afternoon showers, and strengthening towards a sustained 15mph into evening.
Effect of the wind on you?
Negligible.
How Wet?
Most rain west, some showers
Often raining on westernmost hills, particularly the Cambrians and Preseli hills. Drier windows towards the east, but some areas of rain will drift here at times, and showers will break out more widely afternoon which could cluster into more persistent areas of rain.
Cloud on the hills?
Patches over tops, mostly west
Patchy cloud often affecting high western terrain, a few breaks here and there between bursts of rain. Further east, some patchy cloud at varied heights in the morning, but substantially lifting to clear off the hills, patches returning to high tops where showers occur later.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Patchy sunshine and good visibility, trending cloudier through afternoon.
How Cold? (at 750m)
8 to 10C, locally reaching 11C south and eastern hills.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 22nd August 2026
Last updated
Thu 20th Aug 26 at
4:00PM
How windy? (On the summits)
Northerly 5-15mph.
Effect of the wind on you?
Small.
How Wet?
Patchy light rain
A little rain affects the hills on-and-off in the morning, most hills dry and any chance of rain diminishing by afternoon.
Cloud on the hills?
Little expected
Patchy cloud here and there in the morning at varied height, the most cloud over the coastal Cambrians which may extensively shroud the tops early in the day. Lifting and breaking as morning goes to clear the summits.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Patchwork of cloud and sun. Excellent visibility.
How Cold? (at 750m)
8C rising to 11C, or warmer on hills near Brynmawr.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 23rd August 2026
Last updated
Thu 20th Aug 26 at
4:00PM
How windy? (On the summits)
Variable less than 10mph, some upslope breezes forming.
Effect of the wind on you?
Negligible.
How Wet?
No rain expected
Cloud on the hills?
Little or none
A little patchy cloud on low slopes around dawn, soon lifting and dissipating for clear hills.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Extensive sunshine, some fair weather cloud building. Excellent visibility.
How Cold? (at 750m)
9C rising to 14 or 15C.
Freezing Level
Above the summits.
Planning Outlook
The weekend is often cloudy in north and west Scotland, some drizzle on the summits with occasional light rain, amounting to little. Drier south and east Scotland, but cloud will reach here too, particularly on Sunday. England and Wales will be largely dry and bright this weekend with little wind and mild temperatures. On Sunday, high pressure west of the country may facilitate local inversion conditions, but low cloud likely quick to fade. Next week begins dry and bright, but wind shifts southeasterly and pressure drops again as the week goes, bringing periods of cloud and rain (sometimes heavy) to most hill groups, some stronger wind at times. Similar conditions persist into the following weekend: generally unsettled but a chance of a settled window, best in the east.