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.
Tuesday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra 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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Brecon Beacons
Tuesday 21st October 2025
Last updated
Mon 20th Oct 25 at
4:30PM
Summary for all mountain areas
Patchy rain drifts east across the Highlands, breaking up into showers. Staying showery all day toward west coast, locally more frequent rain. Showery rain throughout the day for England and Wales, occasionally heavy. Low cloud most persistent west. Increasingly windy, feeling cold.
Headline for Brecon Beacons
Windy, showers most common west, cloud varied on tops.
How windy? (On the summits)
Westerly 25 to 30mph, some gusts 35mph at times around highest summits.
Effect of the wind on you?
Blustery over the hills, affecting comfortable walking in places on higher tops. Considerable wind chill.
How Wet?
Passing showers, more frequent west
Showery rain will come and go all day, most common western Cambrians. Scattered showers passing though more quickly further south/east, briefly heavy.
Cloud on the hills?
High western tops often in cloud
Often covering higher terrain above 600-800m, lowest and most frequent western areas. Breaks at times higher up further east toward the Black Mountains.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely cloudy, brief glimpses of sun mainly in east Wales. Visibility very good away from rain.
How Cold? (at 750m)
7 or 8C, little change, small variation with height in morning. Feeling below freezing in the wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Wednesday 22nd October 2025
Last updated
Mon 20th Oct 25 at
4:30PM
How windy? (On the summits)
West turning southwesterly 15 to 20mph. Uncertain, but into evening-night, risk a rapid increase to gales, direction varied.
Effect of the wind on you?
Mostly small during daytime. Possible significant deterioration late in day and into night.
How Wet?
Odd showers, risk heavy rain arriving
One or two brief light showers, mostly west coastal areas. Possibility of more persistent rain developing from the south, greater risk heavy rain evening into night.
Cloud on the hills?
Patchy cloud lifting; lowering in rain
Cloud on some slopes in the morning, mainly toward south/west tending to disperse if dry weather persists. If rain moves in, cloud then lowering, greater risk late in day.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Any sun mostly weak through high, likely covering the sky to be overcast. Visibility excellent, becoming hazier.
How Cold? (at 750m)
5 or 6C. Feeling near freezing in the wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Thursday 23rd October 2025
Last updated
Mon 20th Oct 25 at
4:30PM
How windy? (On the summits)
High uncertainty - N-NW'ly may turn toward W, speed likely vary, 25-40mph, may strengthen further to 50mph.
Effect of the wind on you?
Expect blustery conditions and significant wind chill, may deteriorate further to make walking difficult.
How Wet?
Showery west
Generally showery, more frequent precipitation in west Wales, likely heavy bursts at times with hail.
Cloud on the hills?
Mostly higher and western tops
Patchy cloud most common over higher western hills, lowering in showers. Further east, cloud higher and more broken above the tops.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Some bursts of sun, mainly east. Visibility very good where dry, but briefly poor in showers.
How Cold? (at 750m)
3C. In stronger winds, chill factor feeling near -10C.
Freezing Level
Above the summits
Planning Outlook
A complex weather situation through midweek, with various centres of low pressure drifting around slowly. Areas of rain and showers, but also drier moments - Wednesday and possibly Thursday often dry in eastern Scotland and northern England - beware of a deterioration from the northwest during Thursday with gales and rain setting in. Significantly colder later in the week as winds turn northerly. Freezing level dropping to 800-1000m into the weekend, lowest in northern Scotland. A mix of sunshine and showers falling as snow on high terrain, most frequent in north-facing areas.