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
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.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Clear
Excellent or superb visibility, no navigation issues.
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.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
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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.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Clear
Excellent or superb visibility, no navigation issues.
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.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
Viewing Forecast For
Brecon Beacons
Friday 22nd May 2026
Last updated
Thu 21st May 26 at
4:04PM
Summary for all mountain areas
Scotland; Strong, gusty south-westerly with extensive low cloud and patchy rain and drizzle. Tending to ease off for many hills, with rising cloud bases. England and Wales: South-west winds, but mostly dry with warm sunshine, some cloud banks, mostly coastal hills.
Headline for Brecon Beacons
Breezy, but mostly dry with sunshine and increasingly warm. Some high cloud.
How windy? (On the summits)
Southerly sustained 20-25mph; gusty, often approaching 30mph, stronger early with downslope gusts too.
Effect of the wind on you?
Breezy in exposure all day with buffeting gusts, to lower terrain early, the strongest affecting stability.
How Wet?
Substantially or completely dry
Late in the day, a rising risk of patchy rain. May well be dry all of daylight.
Cloud on the hills?
Little expected
Thin ribbons of cloud on some southern slopes early, mist in sheltered valleys too. This lifting after sunrise and largely dissipating for cloud-free hills; some risk of cloud caps on high summits building from the west, but minimal if at all.
Chance of cloud free summits?
Rising to 90%
Sunshine and air clarity?
Mostly sunny but weakened by a veil of high cloud. Very good visibility, but a morning haze to the south.
How Cold? (at 750m)
13C rising to 15 or 16C; may stay cooler west of Brecon; rising to a warm 22C eastern valleys.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 23rd May 2026
Last updated
Thu 21st May 26 at
4:04PM
How windy? (On the summits)
Westerly 10mph and often less, trending variable.
Effect of the wind on you?
Negligible.
How Wet?
Likely dry
Chance of some early fine drizzle over high summits, this soon fading after sunrise for dry hills.
Cloud on the hills?
Early low cloud south, hills clearing
Low fog on the southern slopes, perhaps up to 600m (chance of tops above a layer of cloud, but uncertain); may be more extensive Preseli. Cloud lifts through morning, likely above summits and well broken by afternoon.
Chance of cloud free summits?
Rising to 90%
Sunshine and air clarity?
Mostly sunny, some patchy higher cloud at times. Good visibility, but may be hazy in the distance to the south.
How Cold? (at 750m)
12C with little change in height early; rising to 16C (to a warm 24C eastern valleys). Only slight drop into nighttime.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 24th May 2026
Last updated
Thu 21st May 26 at
4:04PM
How windy? (On the summits)
South to south-westerly 5 to 15mph
Effect of the wind on you?
Mostly negligible
How Wet?
Dry
Cloud on the hills?
Mountains clear
Aside from some patches of banks across coastal hills early in morning, which will burn off, hills are expected to be clear.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Widely sunny. Visibility very good.
How Cold? (at 750m)
13C lifting to 17C
Freezing Level
Well above the summits
Planning Outlook
Pressure builds this weekend, centred over England and Wales where it will be warm and sunny. To the north of the high, a blustery and gusty south-westerly will persist across the Highlands with patchy rain and hill fog,mainly in the west and northwest. Very warm by Sunday and Monday valleys of Wales and England, mid to high 20s. Low 20s glens into southern and eastern Scotland. Next week, high pressure extends over Scotland, cutting of the low cloud and drizzle from northwest Scotland by midweek. Warm sunshine with light winds, still very warm into the valleys of England and Wales, although cooling down later in the week when a gusty easterly may develop for Wales and Pennines.