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.
Friday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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
Friday 4th September 2026
Last updated
Thu 3rd Sep 26 at
4:30PM
Summary for all mountain areas
Gales over high terrain in all areas, severe on higher mountains making progress very challenging and feeling cold. Showery rain, most frequent in western Scotland, scattered heavy bursts passing eastward. Remnants of overnight rain soon clears from Wales to be more often dry, less windy southwards.
Headline for Brecon Beacons
Windy, near-gales on tops. Rain at dawn clears, cloud lifting.
How windy? (On the summits)
Southwesterly gusts 50-60mph prior to dawn. Then typically 30-35mph, at times 40mph higher tops mainly mid-Wales, occasionally less southern tops.
Effect of the wind on you?
Strenuous-to-arduous walking conditions, buffeting gusts affecting balance in exposure. Considerable wind chill.
How Wet?
Early rain clears to local light showers, fading
Overnight rain stays heavy through dawn, soon clearing, becoming light and patchier, but leaving things wet underfoot. A legacy of drizzle and some light showers western Cambrians for a time, but much of day often dry.
Cloud on the hills?
Lifting and breaking in morning
Shrouding hills widely at dawn, but base soon starts to lift and breaks forming toward upper slopes or above during morning to leave most cloud often above the hills by late morning, brief patches some high tops toward west.
Chance of cloud free summits?
20% at first, rising to 80%
Sunshine and air clarity?
Cloudy start, brighter skies develop, a little sun later as high cloud thins. Poor visibility in early rain, soon improving, increasingly very good as the day goes on.
How Cold? (at 750m)
10C or above up to dawn, then 8 or 9C. Directly in wind feeling like 0C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 5th September 2026
Last updated
Thu 3rd Sep 26 at
4:30PM
How windy? (On the summits)
Westerly 25mph at dawn, easing during morning to 15mph or less, turning SW'ly; tending to rise again later, risk 30mph.
Effect of the wind on you?
Feeling cool in early breeze, but soon mostly small. Becoming blustery again later in day.
How Wet?
Rare light rain west
Chance of a drizzly shower west Cambrians early in day. During afternoon, chance of some rain extending in from southwest.
Cloud on the hills?
Mostly clearing
Patchy cloud over some slopes above 700m early morning. Lifting above the summits by mid-morning; some patches may return in west if rain occurs.
Chance of cloud free summits?
70%
Sunshine and air clarity?
A little sun soon weakening as high cloud builds then thickens across the sky. Visibility very good.
How Cold? (at 750m)
8C rising to 11C afternoon, little change or rising a degree or so higher evening/night. Feeling like 2C in wind at first.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 6th September 2026
Last updated
Thu 3rd Sep 26 at
4:30PM
How windy? (On the summits)
South to southwesterly 30 to 40mph, very gusty in places around high terrain.
Effect of the wind on you?
Buffeting affecting ease of walking over high terrain. Feeling cool in exposure despite warm air.
How Wet?
A little rain west
Drizzle and some light rain for periods mainly southwest hills.
Cloud on the hills?
Often covering southwestern slopes
Varied low cloud, but may cover areas near Irish Sea all day, but bases higher inland and often clearer mid-Wales.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Some weak sun through high cloud. Hazy.
How Cold? (at 750m)
13C, humid all day, rising to 17C, locally warmer east. Feeling like 5 to 8C directly in the wind.
Freezing Level
Above the summits.
Planning Outlook
Generally unsettled through the next week with spells of rain and showers moving in from the Atlantic, accompanied by frequently strong to gale force mountain winds. A window of better weather and less wind on Saturday, but further rain moves into Scotland from the southwest by Saturday night into Sunday, heaviest northwest Highlands; gales also return to many mountains by Sunday. Temperatures will vary, mildest toward the south, but cooler air moves in from the north at times next week bringing higher Scottish tops occasionally close to freezing point. Indications favour improving weather patterns during mid-month.