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.
Sunday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
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.
Very warm
Warm conditions across the hills, rising above 15C on tops. Increasingly hot on lower terrain, reaching 25C+ in many valleys. Beware of dehydration.
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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.
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.
Very warm
Warm conditions across the hills, rising above 15C on tops. Increasingly hot on lower terrain, reaching 25C+ in many valleys. Beware of dehydration.
Viewing Forecast For
Brecon Beacons
Sunday 6th September 2026
Last updated
Sat 5th Sep 26 at
4:28PM
Summary for all mountain areas
Gales spread widely across Scotland, severe over high north and west tops. Drizzle over the Highlands, rainy early and late, wettest Northwest Highlands. Early showery rain over Wales passes into England, clearing northeast for sun through high cloud afternoon; windy here too. Warm, but feeling chilly in wind.
Headline for Brecon Beacons
Early showery rain, sun breaks out; becoming windy
How windy? (On the summits)
South to southwesterly 30 to 40mph, trending towards higher speeds for several afternoon hours; very gusty in places around high terrain. Speeds may be nearer 20mph in the east just around dawn.
Effect of the wind on you?
Buffeting affecting ease of walking over high terrain, several afternoon hours of more strenuous conditions, particularly west. Feeling cool in exposure despite warm air.
How Wet?
Soon largely dry
A few early hours of showery rain, this soon passing northeastward. A brief drizzle may linger, but this fading for dry hills likely all day. Some patchy rain encroaches into the west around or after dusk.
Cloud on the hills?
Little expected
Varied banks of cloud in the morning around rain, these soon lifting and largely breaking up for clear hills well into the day. Cloud returns from the west with the arrival of rain around/after dusk.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sun increasingly breaking out, fairly widely afternoon through weakened by high cloud. Generally good visibility but some haze.
How Cold? (at 750m)
13C, humid all day, rising to 17C, locally warmer east. Feeling like 5 to 8C directly in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 7th September 2026
Last updated
Sat 5th Sep 26 at
4:28PM
How windy? (On the summits)
Westerly 20 to 30mph, speeds rise and shifting southwesterly, tops speeds to 45mph over high tops into evening.
Effect of the wind on you?
Walking increasingly uncomfortable in exposure, strenuous conditions develop with buffeting gusts. Marked wind chill.
How Wet?
Early rain, then scattered showers
Rain from overnight may continue through dawn, but soon breaking up to leave only spotty showers for a time. Later, more frequent showery rain may return.
Cloud on the hills?
Lifting to tops, some breaks
Early varied cloud over the hills, lifting during morning to mostly patches over higher tops, breaks best east & mid Wales, more frequent for periods Pen-y-Fan west above 700m. Lower patches in showers.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Glimpses of sun mainly east Wales, increasingly afternoon though high cloud too. A slight haze, particularly southwest, visibility reduced in rain.
How Cold? (at 750m)
9 or 10C, little change all day. Feeling like 0 to -3C in the wind on tops.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 8th September 2026
Last updated
Sat 5th Sep 26 at
4:28PM
How windy? (On the summits)
Westerly 20-30mph, tending to strengthen later, gusts to 40mph over high tops.
Effect of the wind on you?
Blustery in exposure much of the day, trending towards more strenuous conditions later with a rising wind chill.
How Wet?
Showers
Showers come and go from the northwest through the day, generally on the lighter side, but a rising risk of more frequent showers with local heavy falls as the day goes.
Cloud on the hills?
Generally lifting, summit breaks
Varied banks of cloud above middle slopes early, most extensive west (particularly coastal Cambrians), gradually lifting through the day to approach summits with breaks forming. During showers, bases will intermittently lower.
Chance of cloud free summits?
Rising to 70%
Sunshine and air clarity?
A patchwork of sunshine, best on low eastern slopes. Good visibility though some haze.
How Cold? (at 750m)
8 or 9C. Later feeling around or just above freezing in direct wind.
Freezing Level
Above the summits.
Planning Outlook
Generally unsettled onward into next week with spells of rain and showers moving in from the Atlantic, accompanied by frequently strong to gale force mountain winds. Temperatures will vary, mildest toward the south, but cooler air moves in from the north at times bringing higher Scottish tops occasionally close to freezing point. A few high pressure ridges will briefly bring brighter drier spells: Wednesday likely sees a brief good weather window, though cloud moves into the west with time, and indications suggest another window may arise Friday into Saturday, though this remains uncertain. Longer settled windows forming from mid-month, particularly England and Wales. Temperatures will be generally near or above average, best sunny windows around east hill groups.