Brecon Beacons
Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.
Viewing Forecast For
Brecon Beacons
Wednesday 1st December 2021
Last updated
Tue 30th Nov 21 at
4:43PM
Summary for all mountain areas
Strong northwesterly winds will bring colder conditions to all areas once again with clusters of showers moving south across the country through the day, snow falling to lower slopes increasingly through the day but mainly higher slopes in Wales. Cloud frequently covering higher tops.
Headline for Brecon Beacons
Much colder, very windy. Showers, snow across the tops.
How windy? (On the summits)
Northwesterly, 30 to 50mph, suddenly gusty in showers. Strongest winds in the morning.
Effect of the wind on you?
Frequent significant buffeting to low elevations. Arduous conditions higher terrain, especially in the morning. Significant wind chill.
How Wet?
Showers, hail, snow tops
Showers coming in from the northwest, locally may cluster together to be frequent for a few hours, but less showers toward east and mid-Wales. Hail, snow across high tops. Chance isolated thunder.
Cloud on the hills?
Varied, lowest west Wales
Cloud bases varied, changing quickly where showers occur, often covering hills in west Wales above 600m. Further south and east across Brecon Beacons, breaks at times to higher slopes.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Bursts of sun, mostly east. Visibility at times very good, but reduced abruptly in showers.
How Cold? (at 750m)
0 or -1C. Will feel closer to -15C in direct exposure to strongest winds.
Freezing Level
Around 900m, tending to lower, by evening dropping below 600m.
Viewing Forecast For
Brecon Beacons
Thursday 2nd December 2021
Last updated
Tue 30th Nov 21 at
4:43PM
How windy? (On the summits)
Northerly 25 to 35mph from dawn, risk locally 40mph tops, will ease to become northwesterly 10 to 20mph in afternoon.
Effect of the wind on you?
Be prepared for fairly arduous conditions for a few hours in the morning with significant wind chill, easing by afternoon.
How Wet?
Early snow showers clearing.
Potential for clusters of snow showers to affect the area at dawn, but these clearing by mid morning. Then mostly dry, but risk of scattered snow showers in the far west.
Cloud on the hills?
Early cloud banks clearing.
Banks of low cloud covering the hills from dawn for a time, but will clear off the hills by mid to late morning. Then hills clear, but cloud lowering from west in evening.
Chance of cloud free summits?
30% lifting to 80%
Sunshine and air clarity?
Cloudy start, then sunshine developing widely. Visibility excellent, but very poor in early snow showers.
How Cold? (at 750m)
-1 or -2C
Freezing Level
Terrain widely frozen after widespread frost at dawn.
Viewing Forecast For
Brecon Beacons
Friday 3rd December 2021
Last updated
Tue 30th Nov 21 at
4:43PM
How windy? (On the summits)
West to southwest 15 to 25mph, risk of increasing to 30-40mph after dusk.
Effect of the wind on you?
Mostly small much of day, but at times fairly blustery tops with marked wind chill. May become arduous into evening.
How Wet?
Early rain clearing. Then a few showers.
The legacy of a front, that will have given some transient summit snow overnight, will give a little rain at dawn before clearing. Then a few isolated showers.
Cloud on the hills?
Extensive, slowly lifting and breaking
Extensive low cloud much of the day, down to lowest slopes in morning, before tending to lift to higher slopes into the afternoon, but unlikely to clear tops.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Generally overcast, a little sun possible in east. Widely murky through morning, becoming good into afternoon.
How Cold? (at 750m)
3 or 4C
Freezing Level
Above the summits
Planning Outlook
North or northwesterly winds will dominate through the rest of the week - most mountains frequently sub-zero onward into the weekend, at times to lower slopes. Some variation of freezing level, mainly toward western coasts and brief tongues of less cold air may move across Wales, perhaps the south Pennines. Frequent precipitation, mostly snow on the mountains, sometimes heavy showers with hail. Winds varied, but often strong, gales or severe upland gales at times.