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
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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 23rd September 2026
Last updated
Tue 22nd Sep 26 at
4:28PM
Summary for all mountain areas
Rain and strong winds soon clears east from Scotland, but lasts a few hours over northern England and Wales in the morning with some heavier bursts. A marked improvement follows as cloud lifts and breaks up. A few showers continue near west coasts of Scotland. Feeling rather chilly in a fresh breeze.
Headline for Brecon Beacons
Blustery with some rain, improving to sunshine and clear hills.
How windy? (On the summits)
Westerly 25mph from dawn into morning and gusty, briefly 30mph. Turning northwesterly in middle of day, lessening to 20mph, then gradually lower during afternoon. Dropping to very little wind onward into night.
Effect of the wind on you?
Blustery in morning with some buffeting gusts on higher exposed terrain, moderating but feeling noticeably cool in exposure; an improving trend.
How Wet?
Drizzly and patchy rain, clearing afternoon
Some drizzle on the high tops and patchy rain around in the morning. Some steadier rain develops from west, locally heavier briefly in morning mainly mid-Wales. Breaking up and any residual showers moving east into afternoon, to become dry.
Cloud on the hills?
Often covering high terrain, breaking afternoon
Often cloudy above 600m through morning, some variability, and more extensive for a time, with ragged patches forming to forest canopies. Through afternoon, bases lift, increasingly breaking up, just banks over tops later if any.
Chance of cloud free summits?
30%, later rising to 70%
Sunshine and air clarity?
Glimpses of sun, breaking out afternoon, for a mostly clear sunset. Very good visibility out of cloud/rain.
How Cold? (at 750m)
Steady around 12 or 13C into afternoon, then cooling to finish around 10C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 24th September 2026
Last updated
Tue 22nd Sep 26 at
4:28PM
How windy? (On the summits)
Southerly 15-25mph, will vary somewhat, tending to rise, and notable gusts over tops and downslope to the north.
Effect of the wind on you?
Fairly small, but nuisance gustiness over tops and towards the north.
How Wet?
No rain expected
Cloud on the hills?
Little or none
Mist in some sheltered valleys around dawn, this soon lifting, dissipating for clear hills.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sun through high cloud. Very good visibility.
How Cold? (at 750m)
8C rising to 12C, staying elevated overnight.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 25th September 2026
Last updated
Tue 22nd Sep 26 at
4:28PM
How windy? (On the summits)
Westerly 15 to 20mph, occasionally 25mph.
Effect of the wind on you?
Fairly small, but feeling blustery at times in exposed on higher terrain.
How Wet?
A little rain west
Much of south and east of the region likely stays largely dry. Patchy rain develops over western hills with time, amounts fairly small.
Cloud on the hills?
Early low cloud clears
Varied cloud or fog banks from lower elevations in the morning, tending to disperse or lift onto higher slopes, but many hills may well clear. Some cloud banks then drift onto western hills later.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Some sun through high cloud, best southeast. Early mist, then visibility good, may reduce in west if rain develops.
How Cold? (at 750m)
Around 12C, little change all day.
Freezing Level
Above the summits.
Planning Outlook
Southwesterly winds increase again on Thursday and rain later moves into western Scotland, but elsewhere is likely dry, bright in Wales and much of England. A variable outlook continues into the weekend and beyond with high pressure building from the south at times with fairly warm and dry conditions, but Atlantic systems still pass to the north bringing occasional rain and showers toward western Scotland at least, strong wind here with sustained gales in the north. Next week remains on the unsettled side: west-southwesterly wind with bands of rain passing over most mountains, but a trend towards higher pressure brings longer settled windows into October.