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.
Tuesday's Forecast
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Brecon Beacons
Tuesday 20th October 2026
Last updated
Mon 19th Oct 26 at
4:53PM
Summary for all mountain areas
Damp for most, fairly widespread drizzle, rain, and low cloud; a rising risk of steady falls with heavy bursts in England and Scotland. Areas north of major hill groups see lighter, patchier rain, and north Scotland starts drier. Scotland will be windy; lighter wind southward, particularly Wales.
Headline for Brecon Beacons
Rain, drizzle, and low cloud, most east; later improving
How windy? (On the summits)
Variable 5-15mph, perhaps widely in a lull, for several hours, shifting southwesterly as afternoon goes, rapidly strengthening into nighttime with both variable speed and direction, risk to 40mph+.
Effect of the wind on you?
Small during daylight, then conditions deteriorate into nighttime.
How Wet?
Rain and drizzle, dry window forming
Generally damp all day, some steadier rain over southeastern hills in particular, perhaps a brief heavier fall. West Wales may see patchier rain or locally drier periods. Generally fading and breaking up through afternoon, but returning overnight.
Cloud on the hills?
Fairly extensive, later improving
Extensive from lower slopes upward south and eastern areas. Cloud base higher westward, possibly locally much clearer toward Pembrokeshire coast and some improvement afternoon, perhaps well broken into evening.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Overcast, dull and misty from many lower slopes upward, though skies may brighten later afternoon.
How Cold? (at 750m)
7 or 8C, little change all day or overnight.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 21st October 2026
Last updated
Mon 19th Oct 26 at
4:53PM
How windy? (On the summits)
Variable and perhaps a brief lull below 20mph, but likely a rapid increase to 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, some sunny glimpses forming later. Visibility often reduced in rain, at times poor west, locally sometimes good east.
How Cold? (at 750m)
2 to 4C, will vary, may locally reach 5C. Feeling like -10C if exposed to stronger wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 22nd October 2026
Last updated
Mon 19th Oct 26 at
4:53PM
How windy? (On the summits)
Westerly 20-25mph turning southerly, briefly lessening, then sharply rising towards 40mph, further rising overnight.
Effect of the wind on you?
Generally fairly small, some blustery moments and feeling chilly, deteriorating to severe conditions overnight.
How Wet?
Shower fade, then late rain
Showers around from dawn, a few clusters of sustained rainfall, but fading for a lengthy dry window. As afternoon goes, rising risk of rain returning, setting in persistently and increasingly heavy.
Cloud on the hills?
Just summits with break for a time
May start fairly extensive on high terrain, plenty of patches on lower slopes to start, but generally lifting, breaking up to banks grazing terrain above 800m. A few lower patches from time to time on southern aspects, then rising risk filling in extensively as evening approaches.
Chance of cloud free summits?
30%, rising to 50% for a time
Sunshine and air clarity?
Patchy sun, some longer bright windows midday but increasingly cloudy through afternoon. Very good visibility, later deteriorating.
How Cold? (at 750m)
6 to 8C, rising evening into night. Feeling like -5C or colder in stronger wind.
Freezing Level
Above the 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 and direction, though a risk of gales quickly sweeping into England and Wales Wednesday. Thursday may offer a window of brighter weather and lessening wind, but Thursday evening into night sees a deep area of low pressure move 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. Atlantic southwesterlies then follow into the weekend: strong wind, periods of low cloud and rain, brighter windows too but with showers in the west. Some risk of stormy conditions in Scotland. Generally unsettled weather likely prevails to the end of October.