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.
Thursday'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.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate 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.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Brecon Beacons
Thursday 26th March 2026
Last updated
Wed 25th Mar 26 at
4:19PM
Summary for all mountain areas
A sunny start, frosty in England and Scotland; freezing levels at middle heights in Wales. Some snow showers north and west Scotland early. High cloud builds from the west; patchy snow and rain arrive afternoon, spread east, and increase in frequency into night. Rain increasingly to higher slopes as temperature rises.
Headline for Brecon Beacons
Dry and bright, high cloud builds, rain west into night
How windy? (On the summits)
North-northwesterly 15-25mph early, some gustiness, shifting westerly and easing to 10-20mph. Restrengthening overnight.
Effect of the wind on you?
Fairly small, some early gustiness may be a nuisance on high exposed slopes.
How Wet?
Little or no precipitation during daylight
A few early showers may affect the Cambrians and Preseli hills, but otherwise a dry day. Later afternoon, patchy rain arrives from the west, spreading east into evening; amounts will be very little until later overnight.
Cloud on the hills?
Little during daylight, lowering to tops later
Ragged patches of cloud at several heights in the morning, most of the cloud on western Cambrians. Cloud begins to lift after sunrise, clearing the hills for a largely cloud-free day. Patchy cloud returns to high tops as evening approaches, spreading into a broader layer and lowering into night.
Chance of cloud free summits?
Rising to 90%
Sunshine and air clarity?
Bright sunshine in the morning, gradually weakened by increasing high cloud. Excellent visibility.
How Cold? (at 750m)
-1 or 0C, may start a degree cooler. Rising to 1C afternoon, then a sharp rise evening into night, as high as 5C for several hours. Feeling like -10 to -12C in early wind.
Freezing Level
600-700m, some local lower frosts in sheltered areas, particularly east. Gradually lifting, clearing the summits by evening.
Viewing Forecast For
Brecon Beacons
Friday 27th March 2026
Last updated
Wed 25th Mar 26 at
4:19PM
How windy? (On the summits)
Westerly 20-30mph, notable gusts over high terrain. A northwesterly shift through afternoon.
Effect of the wind on you?
Walking impeded with buffeting gusts over high terrain, stability briefly challenged in strongest gusts.
How Wet?
Patchy rain, briefly sets in, then breaks
Patchy rain in the morning, most often western areas; more widely raining with heavier falls for a few hours after dawn. Rain begins easing through afternoon, drier by evening.
Cloud on the hills?
Extensive
Extensive fog from lower slopes up from dawn, lingering well into the day, bases rising slightly, greatest rise on southern and eastern slopes. Only late in the day will bases rise towards summits, but breaks to tops unlikely during daylight.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Overcast and dull with poor visibility. Beginning to improve late in the day.
How Cold? (at 750m)
6C most of the day, may rise to 7C in places. Sharply lowering towards 3C at night falls.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 28th March 2026
Last updated
Wed 25th Mar 26 at
4:19PM
How windy? (On the summits)
West-northwesterly 25 to 40mph, likely strongest in the morning. Likely to strengthen again into night.
Effect of the wind on you?
Very blustery, more strenuous walking with frequent buffeting in exposure at least in morning. Considerable wind chill.
How Wet?
Hail and snow showers
Showers most frequent in west from dawn, but extending inland and eastwards, brief hail, snow falling in morning to 300-400m, with time mostly rain below 600m. Fewer and lighter showers afternoon.
Cloud on the hills?
Varied mostly over western tops, lifting
Patchy cloud capping higher slopes mostly toward the western Cambrians in the morning, lifting increasingly above the tops by middle of the day.
Chance of cloud free summits?
40% rising to 80%
Sunshine and air clarity?
Patchwork of cloud and sun, best in east in morning. Visibility often very good, but reduced at times to briefly very poor in showers.
How Cold? (at 750m)
-1C rising to +1 or 2C afternoon. Wind chill feeling like -8 to -12C.
Freezing Level
700m in morning, plus frost sheltered inland valleys around dawn, rising just above freezing to tops by middle of day.
Planning Outlook
Thursday starts chilly with clear skies for many, snow then rain moves into western areas with time. Strong northwesterly winds prevail as the weekend starts, brining cooler temperatures and a mix of showers and sun across most areas, the showers likely snowy to middle elevations with some hail mixed in. The cool, spring-like conditions will allow showers to become heavier and more widespread in the afternoon. Sunday into next week sees high pressure southwest of the country, producing drier weather with sun breaks, a trend towards milder temperatures too, but several low pressure systems to the north draw bands of rain eastward, mostly affecting Scotland, occasionally northern England and Wales. A risk of cooler northerly winds re-establishing later in the week, though detail is uncertain.