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.
Friday's Forecast
Severe gale or storm, mobility very difficult
Severe conditions on the mountains, any movement very challenging, you may be blown over. 55-70mph+
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
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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Severe gale or storm, mobility very difficult
Severe conditions on the mountains, any movement very challenging, you may be blown over. 55-70mph+
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
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
Friday 23rd October 2026
Last updated
Thu 22nd Oct 26 at
4:27PM
Summary for all mountain areas
Prolonged heavy rain for south & eastern Scotland, increasingly snow over higher mountains. Patchier showery rain toward the west coast. Very variable wind for Scotland, but gales will be severe on Welsh mountains, heavy rain also persistent here. Rapid increase of wind over northern England into afternoon.
Headline for Brecon Beacons
Severe mountain gales; rain frequent, fades to showers later.
How windy? (On the summits)
Variable low speeds only inland and eastern areas up to dawn, soon northwesterly, swiftly strengthening early morning to 55-70mph, dropping only slowly evening, to 30-40mph into night.
Effect of the wind on you?
Any mobility difficult in exposure throughout the day, already from dawn on western hills, gusts may knock you over; challenging even on lower hills; severe wind chill.
How Wet?
Rain frequent or persistent, later breaks to showers, sleet tops
Rain fairly persistent from dawn, a few patchier moments east and mid Wales but then setting in for several hours with steadier falls west Wales, some heavy bursts, but rain frequent widely middle of day, sleet high tops. Later, will break into scattered showers drifting from the northwest. Becoming dry into night.
Cloud on the hills?
Extensive much of day, a late improvement
Blanket fog to low slopes well into the day. Some varied bases in and out of rain. Later, cloud begins to lift and break up somewhat from west, patches lifting above 700-800m, though lower bases west in showers. Clearer from dusk.
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, improving later. Some sunny bursts mainly southern areas late in the day.
How Cold? (at 750m)
6C just at first, soon 3C, dropping slightly colder afternoon. Feeling as cold as -15C in strongest wind.
Freezing Level
Above the summits, but lowering close to freezing on highest tops during afternoon.
Viewing Forecast For
Brecon Beacons
Saturday 24th October 2026
Last updated
Thu 22nd Oct 26 at
4:27PM
How windy? (On the summits)
South-southwesterly, 30mph or briefly less at first, rising rapidly to reach 60mph; marked increase with height.
Effect of the wind on you?
Deteriorating, soon arduous walking, increasingly difficult mobility on higher terrain, significant wind chill.
How Wet?
Heavy rain soon sets in
Dry around dawn, for an hour or so more east Wales, but rain soon moves in from west, setting in increasingly heavy during morning and continuing until evening. Showery into night. Very wet underfoot, streams in spate.
Cloud on the hills?
Soon lowering to become extensive
Initially most cloud above the hills in east, apart from odd patches at varied heights. Soon cloud will lower onto hills, forming to lower elevations many south and western slopes; some higher breaks remain eastern mid-Wales.
Chance of cloud free summits?
60% at first east, soon 10%
Sunshine and air clarity?
High cloud soon thickens from dawn to overcast skies. Good visibility at first mainly eastern areas becomes hazier, then poor as rain sets in.
How Cold? (at 750m)
4C from dawn, rising to 10C by later afternoon, then falling into night. Always feeling below freezing in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 25th October 2026
Last updated
Thu 22nd Oct 26 at
4:27PM
How windy? (On the summits)
Westerly 45 to 60mph in morning, gusts may reach 70mph highest tops, speeds tending to lower during day to 30-40mph.
Effect of the wind on you?
Difficult conditions and significant wind chill; moderating but still often arduous walking on exposed tops.
How Wet?
Showers mostly west
Showery rain most frequent western Cambrians in the morning, some heavier bursts may have hail mixed in. Fewer and briefer showers southeastwards and generally less with time afternoon.
Cloud on the hills?
Mostly high tops with breaks
Banks of cloud likely to come and go over higher tops mostly above 600-700m and in western areas in the morning. Tending to lift and break higher to often clear many tops into afternoon.
Chance of cloud free summits?
30% rising to 70%
Sunshine and air clarity?
Intermittent bursts of sun, mostly east. Fairly hazy west, poor visibility in showers, more often good toward east.
How Cold? (at 750m)
3 or 4C. Wind chill feels like -7 to -10C in exposure.
Freezing Level
Above the summits.
Planning Outlook
Stormy conditions widely across the mountains this weekend, peak wind speeds into Sunday over Scottish mountains with gusts 100mph on higher tops. Heavy rain will sweep in again from the west during Saturday, leaving showery conditions for Sunday, turning back to snow on higher terrain in Scotland. Very wet ground conditions, beware flooding of many streams and rivers making some routes impassable. A relative lull by early Monday in Scotland, but the next weather system soon sweeps in from the southwest with more heavy rain and extensive mountain gales, continuing into Tuesday. Mild south-southwesterlies mid-late week; smaller amounts of rain, some drier windows toward east and south.