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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
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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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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
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
Wednesday 9th September 2026
Last updated
Tue 8th Sep 26 at
4:16PM
Summary for all mountain areas
Breezy with early scattered rain in north and east Scotland, both easing for a dry and bright afternoon with little wind. Blustery Pennines just at dawn, notably east, but this easing; dry in England with most hills and fells clearing. Early patchy rain in north Wales gradually clears for a bright afternoon.
Headline for Brecon Beacons
Early breeze eases for clear hills and bright sun
How windy? (On the summits)
Northwesterly 25-30mph to start, easing towards 15mph afternoon, later shifting westerly and further easing.
Effect of the wind on you?
Breezy in exposure just at dawn, soon easing, small effects much of the day.
How Wet?
Substantially dry
Patchy rain from before dawn drifts onto the Cambrians, a few spots reaching the northern slopes of central and west Brecon Beacons. Rain soon fades for dry hills. Little or no rain will reach east Brecon Beacons.
Cloud on the hills?
Rising to tops, increasingly breaking above
Cloud banks often cover high terrain to start, lowest bases coastal Cambrians; soon lifting, breaking towards high summits, only occasional patches grazing the high tops to the west and increasingly breaking up afternoon.
Chance of cloud free summits?
Rising to 70%
Sunshine and air clarity?
Mostly sunny, some patchy high cloud around at times. A little early haze, this lifting and visibility becomes good.
How Cold? (at 750m)
7C rising to 10C, or 11C easternmost hills. Feeling at or just below freezing to start, wind chill effect easing.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 10th September 2026
Last updated
Tue 8th Sep 26 at
4:16PM
How windy? (On the summits)
Southwesterly 15-20mph, strengthening, most notably afternoon, to 30-35mph late afternoon into evening.
Effect of the wind on you?
Mostly small, but the breeze rising noticeably through afternoon.
How Wet?
Little until later
Spotty drizzly rain drifts onto the hills from the southwest, often dry with some extended dry windows. A larger band of rain sweeps in from the west later in the day, setting in persistently as evening approaches.
Cloud on the hills?
Varied over tops, later filling in
Cloud banks will variably lower onto the high summits, perhaps a few early hours of lower patches to southern slopes, but clear windows likely as well; little cloud north of high Brecon Beacons. Cloud will lower and increasingly fill in from mid afternoon.
Chance of cloud free summits?
60%, later lowering to 20%
Sunshine and air clarity?
Sunny windows, notably afternoon, then trending cloudier into evening. Good visibility, a little haze to the south.
How Cold? (at 750m)
8C rising to 11C, staying elevated overnight and may rise a degree further.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 11th September 2026
Last updated
Tue 8th Sep 26 at
4:16PM
How windy? (On the summits)
Northwesterly 20mph to start, easing, to largely 10mph later.
Effect of the wind on you?
Small; a little early breeze in exposure.
How Wet?
No rain expected
Cloud on the hills?
Early cloud lifts, increasing summits breaks
Most terrain above 700m starts shrouded, more extensively low Cambrians and western Brecon Beacons; southern slopes clearest of cloud. With time, a lifting trend, breaking up, to just banks rolling over summits and later more often clear.
Chance of cloud free summits?
Gradually rising to 70%
Sunshine and air clarity?
Sunshine increasingly breaks out, notably southern Brecon Beacons. Good visibility, though a haze building.
How Cold? (at 750m)
10 or 11C, beginning to cool slightly from the west later afternoon.
Freezing Level
Above the summits.
Planning Outlook
A typical autumnal pattern in the week ahead: periods rain and strong wind, gales over tops at times, particularly in Scotland. Temperatures generally mild, some warmer windows in England and Wales, as well as cooler windows, chilly at times in Scotland, a little sleet possible on highest tops and feeling cold during strong winds. Best chance of near-term settled windows on Friday and Sunday: mornings start cool with scattered low cloud, lifting and breaking up, clearest on eastern hill groups. Weather remains mixed into next week with more swathes of rain and strong wind. A tendency towards high pressure building southwest of the country will bring more bright, drier days to England and Wales. Staying unsettled longer in Scotland. Indications of more extensive windows of settled weather in the later month.