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.
Today'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.
Snow and hail showers
Periods of bright or sunny conditions mixed with showers or flurries of snow and hail. Visibility may change rapidly from excellent to very poor.
Very cold
Significant wintry conditions - below freezing from lower elevations up all day, -7 or -8C highest summits, feeling like -20C or below on high tops due to wind chill. Frostbite and hypothermia risk. Substantial protective clothing is required.
Winter kit required on higher terrain
Snow cover over higher mountains. Safe progress over some terrain will require suitable footwear - possibly crampons and ice-axe where necessary.
Click an icon for more information or click here for a key to all icons.
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.
Snow and hail showers
Periods of bright or sunny conditions mixed with showers or flurries of snow and hail. Visibility may change rapidly from excellent to very poor.
Very cold
Significant wintry conditions - below freezing from lower elevations up all day, -7 or -8C highest summits, feeling like -20C or below on high tops due to wind chill. Frostbite and hypothermia risk. Substantial protective clothing is required.
Winter kit required on higher terrain
Snow cover over higher mountains. Safe progress over some terrain will require suitable footwear - possibly crampons and ice-axe where necessary.
Viewing Forecast For
Brecon Beacons
Sunday 4th January 2026
Last updated
Sat 3rd Jan 26 at
3:29PM
Summary for all mountain areas
Snow, hail, and wind continues driving into northern Scotland with showers passing into central and western areas; snow coverage fairly widespread in the Highlands. Southern Scotland and England mostly sunny, blustery in exposure. More snow and hail showers for Wales, pushing further east afternoon. Widely very cold.
Headline for Brecon Beacons
Snow and hail showers increasingly widespread; very cold
How windy? (On the summits)
Northwesterly 20-25mph, squally gusts locally in showers. Some higher speeds possible over high tops later in the day.
Effect of the wind on you?
Considerable wind chill over the hills. Affecting ease of walking where exposed on tops, may become strenuous for periods in exposure.
How Wet?
Snow and hail showers west, increasingly pushing east
A band of locally frequent snow and hail showers over the western Cambrians and Pembrokeshire. Dry east in the morning, though snow showers will push into east Wales with time afternoon.
Cloud on the hills?
Banks on central and west tops
Patches on high tops in the west early, bases lower during snow showers, locally to middle slopes. Cloud increasingly common and drifting to high terrain near Brecon, perhaps reaching the tops of the Black Mountains in showers later.
Chance of cloud free summits?
70%, lowering to 40% central and west
Sunshine and air clarity?
Frequent sunshine Brecon Beacons to east Wales in the morning, cloudier west most of the day and cloud increasingly widespread with time. Visibility excellent, turning very poor in snow showers.
How Cold? (at 750m)
-3 or -4C. Wind chill feeling like -15C in exposure on high tops.
Freezing Level
Terrain widely frozen down to valleys well inland; may start near 200-300m towards the Cambrians, locally lifting to this level during the day on slopes exposed to sunlight.
Viewing Forecast For
Brecon Beacons
Monday 5th January 2026
Last updated
Sat 3rd Jan 26 at
3:29PM
How windy? (On the summits)
Northerly 20-30mph.
Effect of the wind on you?
Continued considerable wind chill over the hills. Wind affects ease of walking where exposed on tops, strenuous at times.
How Wet?
Dry for many
Irish Sea showers over Pembrokeshire may occasional drift east towards the Cambrians and westernmost Brecon Beacons, but most mountains stay dry.
Cloud on the hills?
Little, if any, after morning
Few patches on high tops in the west early, these tending to lift and break for substantially cloud-free mountains across south Wales.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Often sunny, some patchy cloud around, most in the west. Visibility excellent, locally reduced where showers occur.
How Cold? (at 750m)
-3 or -4C. Wind chill feeling like -15C in exposure on high tops.
Freezing Level
Terrain widely frozen down to valleys well inland; 200-300m nearest coasts in Pembrokeshire and Cambrians.
Viewing Forecast For
Brecon Beacons
Tuesday 6th January 2026
Last updated
Sat 3rd Jan 26 at
3:29PM
How windy? (On the summits)
Soon westerly 15-20mph, strengthening with time and shifting southwesterly, 30-35mph over the summits.
Effect of the wind on you?
Fairly small for several hours, though walking becoming uncomfortable to strenuous with significant wind chill.
How Wet?
Patchy snow, mostly in the west
Bands of patchy snow passing west-to-east through the day; very little precipitation east of Brecon. Snow/sleet becomes more frequent around and after dusk.
Cloud on the hills?
Mostly high west terrain, variably lower
Variable cloud on high terrain, some breaks off summits, but lowering to middle slopes during snow showers. A trend towards more persistent cloud with time afternoon. Easternmost mountains may only see cloud on high terrain during daylight.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Some bright/sunny spells will break out, but cloud will be extensive for periods too. Variable visibility, very good for periods, but rapidly deteriorating to very poor in snow.
How Cold? (at 750m)
-2C, rising slightly with time. Feeling like -13C in direct wind.
Freezing Level
Terrain widely frozen from dawn, lifting with time to 400-600m, highest level west of Brecon.
Planning Outlook
Monday stays cold with terrain widely frozen; sunshine inland with continued snow showers along coasts. The weather then turns more variable: fronts begin to approach the country on Tuesday, with cloud gradually becoming widespread on high terrain from the north, an area of snow arriving widely into Scotland and tracking south into England and Wales overnight into Wednesday. Most terrain will stay frozen but a brief local lifting of freezing levels in western areas. Some sunny breaks and snow showers will follow this system. Beyond Wednesday, confidence in forecast detail is significantly lower, but another weather system is indicated for Thursday into Friday, this possibly bringing a swathe of snow, rain, and strong winds to the south and perhaps more widely.