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.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
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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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.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
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
Wednesday 21st October 2026
Last updated
Tue 20th Oct 26 at
4:29PM
Summary for all mountain areas
Slow-moving areas of cloud and rain make for variable conditions fairly widely. A swathe of gales sweeps across Wales, later into England with heavy rain and low cloud. Brighter, showery weather follows into Wales later. Several pulses of rain in Scotland; steady falls in the east through morning, tending to lessen.
Headline for Brecon Beacons
Swathe of gales and rain, easing later
How windy? (On the summits)
Variable and perhaps a brief lull below 20mph just around dawn, rapidly increasing after dawn to approach sustained northwesterly 50mph, gusting up to 60mph for several hours, only later starting to notably lessen.
Effect of the wind on you?
Walking becomes difficult through morning with significant wind chill, lasting well into the day; strongest gusts may knock you off balance.
How Wet?
Rain heavy at times, sleet tops, breaking up later
Often raining from morning well into afternoon, a mix of steady falls and some heavier bursts at times, which may set in for longer. May begin to falls as sleet or wet snow on tops, and breaking up somewhat later into just showers.
Cloud on the hills?
Extensive, later improving
Hills extensively covered from 500m up in the morning, beginning to lift and break up but summits slow to clear, and will variably return lower for a time. Best chance of summit breaks late during daylight.
Chance of cloud free summits?
10% rising to 50%
Sunshine and air clarity?
Largely cloudy, sunny glimpses forming and some longer sunny windows late in the day. Visibility starts poor, improves as rain and cloud break but some haze around.
How Cold? (at 750m)
2 to 4C, some variability and perhaps briefly cooler, then will later approach 5C. Feeling like -10C if exposed to stronger wind.
Freezing Level
Above the summits, though may briefly lower to just above.
Viewing Forecast For
Brecon Beacons
Thursday 22nd October 2026
Last updated
Tue 20th Oct 26 at
4:29PM
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 into night.
How Wet?
Largely dry until late
Some early showers soon fade for a lengthy dry window. Into evening, rising risk of rain returning, setting in persistently and increasingly heavy into night.
Cloud on the hills?
Just summits with breaks, deteriorating late
May start fairly extensive on high terrain, some lower patches, but soon lifting, breaking up to banks grazing terrain above 800m, and likely above the summits for several hours at least. As evening approaches, cloud lowers onto high terrain, filling in.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Patchy sun, some longer bright windows midday, then high cloud building. Very good visibility, a little haze to the south.
How Cold? (at 750m)
5C rising to 7C, staying elevated and perhaps rising further overnight. Feeling like -5C or colder in stronger wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 23rd October 2026
Last updated
Tue 20th Oct 26 at
4:29PM
How windy? (On the summits)
Varied from before dawn, soon northwesterly, swiftly strengthening to 55-70mph; only later lessening.
Effect of the wind on you?
Any mobility difficult in exposure, crawling may be necessary in strongest wind; severe wind chill.
How Wet?
Rain later breaks to showers
Rain fairly persistent from dawn, a few patchier moments but then setting in for several hours at least, steadiest heavy falls towards northwest hills. Later, will break into scattered showers drifting from the northwest.
Cloud on the hills?
Extensive
Blanket fog to low slopes well into the day. Later, cloud begins to lift and break up somewhat, but mostly capping terrain above 700-800m lower bases west around showers.
Chance of cloud free summits?
10%, only later rising to 40%
Sunshine and air clarity?
Overcast and dull well into the day with poor visibility. Some sunny bursts late in the day.
How Cold? (at 750m)
Around 3C most of the day, though may just start at a milder 6C. Feeling as cold as -15C in strongest wind.
Freezing Level
Above the summits, but may lower to just graze highest tops later in the day.
Planning Outlook
Thursday offers a window of brighter weather, a few showers will linger on west coastal areas, particularly west Scottish highlands. Thursday evening into Friday sees a deep area of low pressure move across England & Wales. The exact track of the low remains uncertain, but expect periods of heavy rain widely, turning to snow on high Scottish summits. Varied wind, perhaps a lull in some north areas on Friday, but gales soon sweep into Wales and gradually spread widely. Varied conditions follow over the weekend: another brief window of high pressure on Saturday morning, followed by another area of low pressure for widespread rain and gales. Atlantic westerlies remain dominant next week, bringing several low pressure systems with rain and wind, punctuated by brief clearer windows.