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.
Saturday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
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
Saturday 27th December 2025
Last updated
Fri 26th Dec 25 at
4:22PM
Summary for all mountain areas
Chilly easterly winds, strongest and gustiest Wales, with extensive cloud sheet eastern and into central areas, with some patchy light precipitation. Sun best western hills, and also where tops breaks above an inversion around 1000m. Terrain partly frozen, morning frost valleys; but up to plus 5C western tops above inversion.
Headline for Brecon Beacons
Chilly and gusty east wind. Blowing in cloud to eastern hills. Best sun in west.
How windy? (On the summits)
Easterly 30 to 45mph, very gusty around some tops, high passes and downslope toward the west.
Effect of the wind on you?
Affecting comfortable walking and balance over tops and ridges, sudden buffeting gusts in places; considerable wind chill.
How Wet?
Rare if any light rain
Largely dry; chance of an odd brief spot of light rain mainly eastern hills.
Cloud on the hills?
Patches high tops toward east
Cloud banks mostly above 500-700m and toward east and mid Wales perhaps increasingly extensive; patchier over much of Brecon Beacons and western Cambrians, often above tops.
Chance of cloud free summits?
80% in west, but lowering to 40% in the east.
Sunshine and air clarity?
Fairly cloudy, but best sun in the west. Visibility very good.
How Cold? (at 750m)
1 to 3C, coolest in east, locally warmer western slopes. Feeling like -10C directly in the wind.
Freezing Level
Some terrain partly frozen; close to freezing some upper slopes and patchy slight frost in sheltered valleys in morning.
Viewing Forecast For
Brecon Beacons
Sunday 28th December 2025
Last updated
Fri 26th Dec 25 at
4:22PM
How windy? (On the summits)
Easterly 15 to 25mph, some stronger gusts possible around higher mountains.
Effect of the wind on you?
Fairly small, but noticeably blustery and gusty around exposed tops and ridges, giving marked wind chill.
How Wet?
Dry all day
Cloud on the hills?
Mostly little
Thin patches of cloud may graze higher slopes above 700m occasionally, mainly eastern areas.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Often sunny west and south, some broken cloud and sun east-mid Wales. Visibility very good, some distant haze.
How Cold? (at 750m)
0C. Feeling like -7C directly in the wind.
Freezing Level
Near or just below freezing above 700m, also frost some sheltered valleys in morning.
Viewing Forecast For
Brecon Beacons
Monday 29th December 2025
Last updated
Fri 26th Dec 25 at
4:22PM
How windy? (On the summits)
Northeasterly 10 to 15mph, but tending to lift to 15 to 25mph through the day.
Effect of the wind on you?
Mostly small, but increasingly considerable wind chill where exposed to the wind.
How Wet?
No precipitation expected
Cloud on the hills?
Banks mostly across eastern hills.
Banks of low cloud may affect eastern hills with bases around 500-700m. Further west, much patchier cloud will the mountains mostly clear.
Chance of cloud free summits?
80% in west, 40% in east.
Sunshine and air clarity?
Cloudiest in the east, best sun in the west. Visibility mostly very good outside of any precipitation.
How Cold? (at 750m)
Around 0C
Freezing Level
Near or just below freezing above 500-700m, also frost some sheltered valleys in morning.
Planning Outlook
Next week, high pressure still dominates, but generally colder air becoming entrained into its circulation from the north, which sees lower temperatures on high terrain, sub-zero over most mountains through New Year. Small amounts of precipitation, occasional showers or snow flurries, winds north or northwesterly.