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.
Thursday'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.
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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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.
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
Thursday 1st October 2026
Last updated
Wed 30th Sep 26 at
4:15PM
Summary for all mountain areas
Showery outbreaks in Wales and west Scotland, early hill cloud tends to lift with breaks. Showers well-scattered elsewhere, early hill cloud largely clears. Showers lessen widely, often sunny though some haze. Mild temperatures, warm valleys afternoon; west Scotland starts cool, feeling chilly in a blustery wind.
Headline for Brecon Beacons
Frequent early showers ease, becoming often sunny
How windy? (On the summits)
Southwesterly 15-25mph, some gustiness to start. Trending stronger later, finishing at sustained 25-30mph and further strengthening overnight.
Effect of the wind on you?
Fairly small, some nuisance gusts around showers with a chilly feeling. Deteriorating somewhat overnight.
How Wet?
Showers gradually easing
Showers stream in from the southwest at dawn, frequent with some heavy bursts. Showers will gradually scatter and become lighter, best chance dry conditions towards Black Mountains later in the day.
Cloud on the hills?
Lifting to tops and increasingly breaking
Starting fairly extensive above 700m, banks as low as 500m on southwestern aspects in showers. Bases will vary in an out of showers, but a lifting trend, north slopes soon clear, and increasingly just patches on western tops as the day goes.
Chance of cloud free summits?
Rising to 70%
Sunshine and air clarity?
Patchy sunshine, extended sunny spells breaking out north and east. High cloud building from the west later in the day. Good visibility, some haze which will thicken a bit.
How Cold? (at 750m)
9C, rising a degree, possibly towards 11C Black Mountains. Around showers, temperature will fluctuate a few degrees.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 2nd October 2026
Last updated
Wed 30th Sep 26 at
4:15PM
How windy? (On the summits)
Southwesterly 25-35mph, most of the day, sometimes gusting stronger.
Effect of the wind on you?
Ease of walking impacted in exposure most of the day, some buffeting gusts at times.
How Wet?
Often raining west
Patchy rain drifts onto the hills from the southwest, some steadier falls come and go, sometimes heavy, greatest risk towards Pembrokeshire. A few patchier breaks to the east, perhaps a dry window later.
Cloud on the hills?
Fairly extensive
High tops in cloud all day, areas west of Pen-Y-Fan likely shrouded above 700m, often lower. Just in the morning, cloud more patchy, perhaps some clear layers towards Black Mountains, but cloud variably filling in extensively to middle or lower slopes, lowest south aspects.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Some chance a few bright glimpses, but more often cloudy. Hazy at best, and largely poor visibility on tops; chance improvements east.
How Cold? (at 750m)
11 or 12C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 3rd October 2026
Last updated
Wed 30th Sep 26 at
4:15PM
How windy? (On the summits)
West-southwesterly 15-20mph, stronger for a few early hours, to 25mph briefly.
Effect of the wind on you?
Mostly small.
How Wet?
Light rain
Patchy rain affects most hills though morning and into afternoon, falls generally light, drizzly on the tops too. A few sustained falls affect south slopes but a trend towards drier conditions as the day goes.
Cloud on the hills?
Fairly extensive, may improve
Hills begin substantially shrouded, to low slopes on south aspects with patches into valleys. Cloud may lift and break up somewhat, best chance of higher breaks north of high tops. Low confidence regarding how much cloud will clear.
Chance of cloud free summits?
Rising to 40%
Sunshine and air clarity?
A few bright glimpses here and there but mostly cloudy. Visibility limited by cloud, rain, and some haze.
How Cold? (at 750m)
10 to 12C.
Freezing Level
Above the summits.
Planning Outlook
Friday starts the weekend with windy and damp weather, rain quite frequent with extensive cloud for some. On Saturday, higher pressure expands from the south, gradually settling the weather in England and Wales. Scotland remains breezy with cloud and showers, mostly impacting western regions. The following week remains mixed: high pressure to the south and west bringing some windows of brighter, drier weather primarily to England and Wales, but active low pressure systems will break through as well for spells of widespread wind, sometimes gale force, and bands of rain followed by showers. Precise timing of settled versus unsettled weather is currently uncertain. Temperatures variably mild to cool, beginning to reach freezing on Scottish summits, or lower down on clear nights.