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
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
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.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
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Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
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.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Viewing Forecast For
Brecon Beacons
Wednesday 25th March 2026
Last updated
Tue 24th Mar 26 at
3:40PM
Summary for all mountain areas
Widespread hail and snow showers, at times heavy with a risk of isolated lightning. Fewer showers in the N Pennines and southeast Scotland for a few morning hours, but returning afternoon. Gales widespread as well with sudden strong gusts, easing only slightly in Scotland. Cold, staying below freezing above 500-600m.
Headline for Brecon Beacons
Frequent snow and hail showers; gales
How windy? (On the summits)
Northwesterly 40 to 50mph, variable speeds with squally gusts around showers, reaching 55mph.
Effect of the wind on you?
Challenging walking conditions most of the day with significant wind chill. Beware sudden, strong gusts that will require bracing to maintain stability.
How Wet?
Frequent hail and snow
Showery snow and hail falling to lower slopes, frequent in west Wales from dawn, but increasingly widespread across the region. Small risk of isolated thunder & lightning.
Cloud on the hills?
Varying over tops
Cloud base changing, mostly confined to highest summits above 700-800m and often lifting above. Brief patches to 600m in showers.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Brief bursts of bright sun, mostly east in morning. Visibility intermittently very good, but appalling at times in showers with brief whiteout over tops.
How Cold? (at 750m)
-1 or -2C, slight rise into afternoon. Wind chill feeling like -13 to -15C on tops.
Freezing Level
500m from dawn, lifting to 700m, slightly higher away from showers.
Viewing Forecast For
Brecon Beacons
Thursday 26th March 2026
Last updated
Tue 24th Mar 26 at
3:40PM
How windy? (On the summits)
North-northwesterly 20-30mph early, soon easing and shifting northwesterly, 15-20mph, perhaps briefly lower.
Effect of the wind on you?
Walking impeded and stability affected on high exposed ridges early. Easing to fairly small effects.
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.
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. A deck of cloud returns to tops as evening approaches, further lowering.
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 by evening, further rising overnight. Feeling like -10 to -12C in early wind.
Freezing Level
600-700m, though lower frosts likely early, particularly east. Gradually lifting, sharply to above summits as dusk approaches.
Viewing Forecast For
Brecon Beacons
Friday 27th March 2026
Last updated
Tue 24th Mar 26 at
3:40PM
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 eases through afternoon, likely dry 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 later, 3 or 4C.
Freezing Level
Above the summits
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.