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.
Today's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
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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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
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 29th October 2025
Last updated
Tue 28th Oct 25 at
6:17PM
Summary for all mountain areas
Varied mountain weather within a complicated area of low pressure. Cold but otherwise mostly relatively benign N & E Scotland, S Pennines and most of Wales. Elsewhere, areas of upland gale, rain - or above 700m in Scotland snow (whiteout in places).
Headline for Brecon Beacons
Extensively dry; cloud clearing summits. Fairly light wind.
How windy? (On the summits)
Westerly 20mph.
Effect of the wind on you?
Small
How Wet?
Rain clearing from northwest morning
Rain at dawn will soon clear mid and west Wales; may linger until late morning eastern Brecon Beacons and Black Mountains. Then isolated, if any, brief showers.
Cloud on the hills?
Mostly or all clearing
Fog extensive across the hills at dawn. Will improve markedly from northwest morning as all or almost all cloud lifts above the summits.
Chance of cloud free summits?
90% by midday
Sunshine and air clarity?
Patches of sunshine developing, particularly east Wales. Visibility good, but constant haze.
How Cold? (at 750m)
5C
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Thursday 30th October 2025
Last updated
Tue 28th Oct 25 at
6:17PM
How windy? (On the summits)
Southeasterly 20mph at dawn. Soon progressively strengthening to 45, perhaps 55mph western summits mid afternoon.
Effect of the wind on you?
Deteriorating as buffeting and wind chill become very considerable. General mobility may become difficult.
How Wet?
Rain setting in by about midday
Dry most or perhaps all morning. Rain then setting in; widely heavy particularly south Wales.
Cloud on the hills?
Filling in across the hills; lowest base southern hills
Fragments some higher slopes, but most summits temporarily cloud free. Deteriorating in rain as cloud fills in across the hills, widely above 200 or 300m south of A40 and Preseli, a little higher further north.
Chance of cloud free summits?
Dropping to less than 10%
Sunshine and air clarity?
Little or no sun. Visibility before becoming very poor in rain.
How Cold? (at 750m)
4C; rising slowly through the day. Will feel as cold as minus 6C in the wind later in day.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 31st October 2025
Last updated
Tue 28th Oct 25 at
6:17PM
How windy? (On the summits)
Southerly, speeds increasing quickly with height to between 40 and perhaps on higher westernmost summits 50mph.
Effect of the wind on you?
Widely difficult walking and significant wind chill in upland gales.
How Wet?
Rain on and off or frequently
Rain, most frequent south Wales, where heavy rain may rarely cease over several hours.
Cloud on the hills?
Very extensive and low; perhaps very little east Wales
Fog, from lowest slopes up Presili east to about Pen-y-Fan most or all day. Elsewhere, cloud base 450 to 600m, but possibly an edge to the low cloud may leave summit in east Wales largely cloud free all day.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Weak sunshine at times probably only east Wales, where visibility excellent. Widely dull and misty west Wales.
How Cold? (at 750m)
9C. Will feel more like minus 7C directly in the wind.
Freezing Level
Above the summits.
Planning Outlook
Frequently windy toward and through the weekend with bouts of upland gales - possibly storm force and bands of rain and low cloud. Warmer than at present. These conditions are likely to continue well into November as a lengthy series of Atlantic lows and associated fronts cross Britain.