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.
Monday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
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.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
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.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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
Monday 19th October 2026
Last updated
Sun 18th Oct 26 at
4:00PM
Summary for all mountain areas
A fine but chilly day for the Highlands with sunshine, but cloud will roll in from the southeast to increasingly cover hills in southern areas in the afternoon. Cloudier all day for northern England with a little rain, strong and gusty easterly winds. Early rain in Wales clears, low cloud tending to break with time.
Headline for Brecon Beacons
Gusty in places. Early rain and lowest cloud east, improving.
How windy? (On the summits)
Easterly 20 to 30mph, gusty in places around higher tops particularly morning.
Effect of the wind on you?
Blustery, in places some buffeting gusts around exposed tops and considerable wind chill.
How Wet?
Early rain and drizzle fades
Rain and drizzle over a few hours from dawn, especially more eastern hills, patchier westwards. Fading to just odd pockets of drizzle into middle of day then substantially dry afternoon. Some rain and drizzle returns into night.
Cloud on the hills?
Fairly extensive, lowest east in morning, improving and breaking afternoon
Covering most higher slopes above 600-700m in the morning, or to some lower slopes in east. Tending to rise and break with time, increasingly breaking up into afternoon with just patches on some high tops.
Chance of cloud free summits?
20% morning, rising to 80% afternoon.
Sunshine and air clarity?
Cloudy and dull morning, reduced visibility where damp, tending to improve to be good as cloud rises, some brighter skies and occasional sun afternoon.
How Cold? (at 750m)
5 or 6C, little change all day. Feeling like 0 to -5C in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 20th October 2026
Last updated
Sun 18th Oct 26 at
4:00PM
How windy? (On the summits)
Southeasterly 10 to 20mph, later shifting south-southwesterly.
Effect of the wind on you?
Fairly small.
How Wet?
Rain and drizzle
Generally damp all day, some steadier rain, heavier falls over southeastern hills in particular, whilst west Wales may see patchier rain or locally drier periods. May fade and break up more widely afternoon.
Cloud on the hills?
Fairly extensive, may improve
Overcast, dull and misty from many lower slopes upward south and eastern areas. Cloud base higher westward, possibly locally much clearer toward coast and some improvement widely afternoon.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Overcast, dull and misty from many lower slopes upward, though skies may brighten a little during afternoon.
How Cold? (at 750m)
7 or 8C, little change all day.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 21st October 2026
Last updated
Sun 18th Oct 26 at
4:00PM
How windy? (On the summits)
Variable and perhaps a brief lull below 20mph, but likely a rapid increase westerly 30-40mph, risk 50mph.
Effect of the wind on you?
Expect deteriorating conditions making walking difficult and sudden buffeting gusts. Significant wind chill.
How Wet?
Rain heavy at times, sleet tops
Often raining over western hills throughout the day, a mix of steady falls and some heavier bursts at times, which may set in for longer; some drier windows toward east; falling as sleet or wet snow high tops.
Cloud on the hills?
Varying over tops
Often covering higher slopes above 700-800m south and west of Brecon, sometimes lower Cambrians. Varying banks of cloud extend east over tops.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely cloudy. Visibility often reduced in rain, at times poor west, locally sometimes good east.
How Cold? (at 750m)
2 or 3C, little change all day. Feeling like -10C if exposed to stronger wind.
Freezing Level
Just above the highest summits.
Planning Outlook
A complex weather setup into midweek with slow-moving fronts bringing areas of rain and fairly extensive low cloud over the hills, varied wind speeds. Thursday may offer a window of drier weather and light winds, but by Thursday night into Friday a storm system likely moves across England & Wales with heavy rain and gales, possibly turning to snow on higher mountains. Scotland may avoid this system and just see showers mostly in the west for Friday, wintry on tops. Another Atlantic storm is then forecast to track further north over the weekend bringing widespread severe gales to high terrain, heavy rain then showery westerlies. Generally unsettled weather likely prevails to the end of October.