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.
Snow and rain mix
Precipitation falling as snow on higher summits, at least part of the day. All falling as rain on lower and mid slopes, may even turn to rain higher up.
Chilly
Air temperature near or just above freezing on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Winter kit required on higher mountains
Snow cover over higher mountain terrain. Safe progress around some tops and ridges will require suitable footwear - possibly crampons and ice-axe where necessary.
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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.
Snow and rain mix
Precipitation falling as snow on higher summits, at least part of the day. All falling as rain on lower and mid slopes, may even turn to rain higher up.
Chilly
Air temperature near or just above freezing on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Winter kit required on higher mountains
Snow cover over higher mountain terrain. Safe progress around some tops and ridges will require suitable footwear - possibly crampons and ice-axe where necessary.
Viewing Forecast For
Brecon Beacons
Thursday 21st November 2024
Last updated
Wed 20th Nov 24 at
3:34PM
Summary for all mountain areas
Heavy snow showers with gales in the Highlands. Southern Scotland and northern England mostly sunny, cold, windy at times, only isolated snowfall near the coasts. In Wales changeable conditions, from snowfall and whiteouts to sunny spells with a few clouds. Chilly.
Headline for Brecon Beacons
Uncertainties, some snow & rain, cold
How windy? (On the summits)
Low forecast confidence: West to northwesterly, 15 to 30mph, varying.
Effect of the wind on you?
Variable, in places buffeting with marked wind chill and impeded walking.
How Wet?
Sleet in the west, low risk snowfall east
Sleet on and off on Western Cambrians. In Brecon Beacons mostly dry, low risk of snow for a few hours and a few cm of snow cover by the evening. Snow on ground.
Cloud on the hills?
Locally covering hills, mainly coastal
Hills mostly clear, local cloud may form near the coast. Visibility strongly reducing in eventual snowfall.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Sun in and out, longer periods with no sun at all and prolonged whiteouts in showers toward west & south. Elsewhere visibility very good.
How Cold? (at 750m)
0C. Feeling below -5C in wind.
Freezing Level
Near 300m by the coast, well inland near sea level.
Viewing Forecast For
Brecon Beacons
Friday 22nd November 2024
Last updated
Wed 20th Nov 24 at
3:34PM
How windy? (On the summits)
Northwesterly, 25 to 40mph, slowly easing through the day.
Effect of the wind on you?
Walking arduous, in places foot placement may become difficult Significant wind chill, stability affected.
How Wet?
Morning showers western hills
Showers fairly intense near the coast, only occasionally in Brecon Beacons. Below 400m rain, higher up sleet or snow. Showers becoming very rare in the afternoon.
Cloud on the hills?
Possible
Low cloud on various levels where snow is falling. If dry (most often east Wales), hills most likely clear.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Glimpses of sun possible between periods of overcast sky and temporary whiteouts.
How Cold? (at 750m)
+1 to +3C, feeling near -10C in wind
Freezing Level
500-800m
Viewing Forecast For
Brecon Beacons
Saturday 23rd November 2024
Last updated
Wed 20th Nov 24 at
3:34PM
How windy? (On the summits)
Southeasterly 40 to 60mph, high variability in time and space.
Effect of the wind on you?
Difficult conditions on many hills, any mobility hardly possible in most wind-exposed places, balance hard to keep.
How Wet?
Snowfall, then heavy rain
Snowfall in the morning, at times heavy, but soon changing into rainfall. Rain continues to be intense, Very wet underfoot by the end of the day, with additionally melting snow streams in spate, flooding possible.
Cloud on the hills?
Hills covered extensively, whiteout
Hills fully covered, very likely all day. With intense precipitation whiteout frequent at least first half of the day.
Chance of cloud free summits?
Very low
Sunshine and air clarity?
Overcast, zero visibility, whiteout.
How Cold? (at 750m)
-1C rising to +10C
Freezing Level
Rising from 300-600m early morning to well above all summits afternoon.
Planning Outlook
Weekend will start with heavy snowfall for many mountains. With significant warming, from Saturday afternoon change into snow, perhaps locally freezing rain for a while. On Sunday frequent rain, freezing level above all summits. On both weekend days severe winds even in the valleys! Next week with start with some cooling, mix of rain and snow showers, then dry for Tuesday and Wednesday. Wednesday night another warm front will move over the UK southwest to northeast, bringing rain and strong winds. Later, milder and moderately wet.