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
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
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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.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Viewing Forecast For
Brecon Beacons
Wednesday 14th January 2026
Last updated
Tue 13th Jan 26 at
3:57PM
Summary for all mountain areas
Cold westerly winds, backing southerly and strengthening ahead of a front which will move into western Scotland during the afternoon, with snow setting in for western mountains, patchier further east. Ahead of this front, scattered snow showers. Mostly dry for England and Wales until front edges precipitation into west later.
Headline for Brecon Beacons
Mostly dry, but winds backing southerly and strengthening. Risk snow later in day.
How windy? (On the summits)
West backing southerly 15-20mph in a lull after dawn. Will progressively strengthen hour by hour to reach 30-40mph around or after dusk, strongest west Wales.
Effect of the wind on you?
Small morning. Then walking increasingly arduous and wind chill becoming considerable.
How Wet?
Mostly dry, until later in day.
Mostly dry, but the threat of snow, rain lower slopes, setting in late in day from west, mainly by or after dusk.
Cloud on the hills?
Probably remaining extensive on most or all higher areas
Cloud sometimes forming below 450m near the coast, but cloud base generally rising to 600 to 800m - possibly a few breaks to higher summits, mainly east Wales. Cloud base may drop markedly later in day.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Occasional sunshine, before cloud thickens from west. Becoming overcast. Visibility often very good, but poor in snow.
How Cold? (at 750m)
0C. Directly in wind will feel as cold as minus 10C.
Freezing Level
750m. Frost many valleys after dawn.
Viewing Forecast For
Brecon Beacons
Thursday 15th January 2026
Last updated
Tue 13th Jan 26 at
3:57PM
How windy? (On the summits)
Low confidence in forecast: Most likely south to southwesterly 25mph or less. Risk particularly east Wales of much stronger wind.
Effect of the wind on you?
Mostly small; but risk difficult walking and significant wind chill.
How Wet?
Risk rain or snow
Most likely though extensively dry. But some uncertainty: chance persistent rain late in day (snow higher tops).
Cloud on the hills?
May well clear most summits
Cloud base most likely to lift toward 900m widely. Risk though in precipitation of cloud filling in extensively across the hills.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Any early patchy sun, will give way from south to thickening cloud, later overcast. Visibility excellent but very poor in precipitation.
How Cold? (at 750m)
2C
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Friday 16th January 2026
Last updated
Tue 13th Jan 26 at
3:57PM
How windy? (On the summits)
Low confidence in track of small scale low. Risk westerly 40 to 60mph early in day, becoming southerly 30mph.
Effect of the wind on you?
High uncertainty over track of small scale low. Risk early in day of difficult conditions with significant wind chill, then easing.
How Wet?
Overnight rain/snow, then showers.
Risk of heavy snow during the early hours, perhaps down to 600m, but this precipitation will likely have cleared by dawn leaving showers, sleet on tops.
Cloud on the hills?
Extensive
Cloud very likely extensive across the hills, following the overnight rain and snow. Best breaks across eastern most tops. General bases around 500-700m.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Little or no sun. Visibility good at times, but rather misty and murky for periods.
How Cold? (at 750m)
1C
Freezing Level
Above summits, but may have been 700m overnight.
Planning Outlook
Very uncertain forecast late Thursday and into Friday, as a small scale and rather potent low pressure system edges northwards across the country on a very uncertain track. May bring a spell of strong winds and upland heavy snowfall overnight and into Friday morning before pulling away to the east. Thereafter, a drier and chilly weekend will follow. Looking further ahead, a colder continental influence may be drawn in on south to east winds, with the snow pack across the Scottish Highlands being enhanced by further spells of snowfall where fronts edge in from the west, whilst further south snow accumulates on higher areas, and occasional falls reach lower slopes.