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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
Click an icon for more information or click here for a key to all icons.
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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
Viewing Forecast For
Brecon Beacons
Wednesday 10th December 2025
Last updated
Tue 9th Dec 25 at
4:05PM
Summary for all mountain areas
Storm-force winds continue over Scottish mountains, beware of storm damage and blocked routes. Gales remain severe over high terrain in northern England and tops in north Wales. Showery rain, hail and on higher tops snow in the Highlands, near-constant in the west. Bands of showers northern England, fewer for Wales.
Headline for Brecon Beacons
Upland gales. Some showers mainly west.
How windy? (On the summits)
Southwesterly 35 to 45mph, tending to moderate a little into afternoon.
Effect of the wind on you?
Challenging walking conditions over the hills with frequent buffeting; considerable wind chill.
How Wet?
Occasional showers
Patchy showery rain mostly west and southwestern areas. Wet underfoot, streams in spate, some flooding following previous rain.
Cloud on the hills?
Mostly higher western tops
Cloud base varying, mostly confined to upper slopes, most common toward western areas.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Occasional sun mostly eastern mid Wales. Slight haze, but visibility mostly fairly good.
How Cold? (at 750m)
4 or 5C, rising slightly into evening-night. Wind chill feeling like -7C.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Thursday 11th December 2025
Last updated
Tue 9th Dec 25 at
4:05PM
How windy? (On the summits)
South-southwesterly 35 to 45mph, risk over 50mph higher tops, mainly in west.
Effect of the wind on you?
Challenging walking conditions, in places remaining difficult over higher tops.
How Wet?
Little or no rain
Possible spots of drizzle in the air on some southern slopes. Rain may then develop from west later evening into night.
Cloud on the hills?
Varied, risk persistent some slopes
Banks of cloud likely covering some slopes, risk persistent on areas toward the south in particular, from mid-slopes upward. Local breaks northward.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Uncertain, sun may break through, best mid-Wales. Southern areas may stay cloudy and hazy or misty.
How Cold? (at 750m)
5C, may start to drop into evening or night. Feeling like -5 to -8C in the wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Friday 12th December 2025
Last updated
Tue 9th Dec 25 at
4:05PM
How windy? (On the summits)
Westerly 20-25mph; some variable direction, tending to strengthen around dusk, more so into night.
Effect of the wind on you?
Fairly small, but winds may be uncomfortable at times in exposure.
How Wet?
A few showers west slopes
Rain onto eastern hills at dawn soon clears. Scattered showers drift onto southern slopes, mostly west of Merthyr Tydfill.
Cloud on the hills?
Mostly high tops and west slopes
Extensive cloud before dawn soon breaks, a few ragged patches leftover at various elevations though these fading. Caps will come and go over high terrain, most frequent and prolonged on southern slopes, particularly in the west.
Chance of cloud free summits?
40%; 60% eastern hills
Sunshine and air clarity?
Cloudy skies early break, best of sun on northern slopes. Excellent visibility early, a haze building near the coasts.
How Cold? (at 750m)
4C, a degree or two warmer in the east at first. Feeling below freezing in direct wind.
Freezing Level
Above the summits
Planning Outlook
Staying unsettled as southwesterly winds prevail and low pressure systems pass to the northwest of Scotland; sustained gales over the mountains, severe or stormy for periods. Temperatures only just below freezing intermittently on higher Scottish tops, even here will experience spells above freezing with thawing, any lying snow patchy, but beware some icy surfaces on the very highest tops where some refreezing occurs. Driest in eastern areas on Thursday, otherwise rainfall will be frequent and heavy, sometimes showery with hail. Expect wet ground conditions and further flooding of streams and some rivers.