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Brecon Beacons Forecast

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

Moderate breeze, locally gusty
Patchwork of cloud and sun
Warm

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Click here to download the latest PDF Last Updated Fri 14th Aug 26 at 4:30PM Last Updated Fri 14th Aug 26 at 4:30PM
View our low-graphics version Last Updated Fri 14th Aug 26 at 4:30PM Last Updated Fri 14th Aug 26 at 4:30PM

Viewing Forecast For

Brecon Beacons
Saturday 15th August 2026
Last updated Fri 14th Aug 26 at 4:30PM

Summary for all mountain areas

A fresh-to-strong westerly breeze across Scotland brings showery rain frequently to the northwest, cloud covering many western hills; fewer showers and higher cloud bases eastward. Moderate northwesterly breezes for England & Wales, cooler than recent days, early showers mostly fade with cloud lifting.

Headline for Brecon Beacons

Breezy start lessens. Largely dry, cloud lifting above tops.

How windy? (On the summits)

Northerly 20-25mph at dawn, strong gusts over high terrain and downslope southward; easing to 15-20mph into middle of day.

Effect of the wind on you?

Quite blustery in exposure early, feeling noticeably fresher, easing to fairly small effects.

How Wet?

Substantially dry

Small chance of a few spots of light rain from the north early in the day, mostly coastal Cambrians, otherwise entirely dry.

Cloud on the hills?

Lifting above summits

Well-scattered cloud patches at various heights in the morning, many hills clear. Soon lifting after dawn to clear the hills; a few odd patches may graze the high Cambrians into afternoon.

Chance of cloud free summits?

80%

Sunshine and air clarity?

Largely sunny, some high cloud around. Excellent visibility.

How Cold? (at 750m)

10C rising to 15C. Always a degree warmer on southern slopes, particularly east. Feeling like 5C in the breeze early in day.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Sunday 16th August 2026
Last updated Fri 14th Aug 26 at 4:30PM

How windy? (On the summits)

Westerly but some variability, later southwesterly, 5-15mph, rising a little later in day.

Effect of the wind on you?

Mostly small.

How Wet?

Most likely dry

A chance of odd patches of light rain mostly west Wales, but much of the region likely dry.

Cloud on the hills?

Little or none

Small chance of a few patches of cloud here and there should rain occurs, but more likely cloud-free.

Chance of cloud free summits?

80%

Sunshine and air clarity?

Often sunny though often weakened by high cloud. Very good visibility.

How Cold? (at 750m)

10 or 11C, rising to 14C, or warmer east, up to 16C; valley temperatures approach 25C here.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Monday 17th August 2026
Last updated Fri 14th Aug 26 at 4:30PM

How windy? (On the summits)

West then southwesterly 10 to 20mph, tending to rise during daytime, later in day toward 30mph.

Effect of the wind on you?

Mostly small, starting to feel more noticeably breezy, may affect ease of walking later in day.

How Wet?

Little or no rain

Largely dry, a little drizzly rain may occur over western Cambrians occasionally.

Cloud on the hills?

Mostly morning and in west

Varied banks of cloud over the hills in the morning, lowest and most persistent in west above 500-600m. Breaking to tops middle of day into afternoon, occasional patches still affecting west Cambrians.

Chance of cloud free summits?

50%

Sunshine and air clarity?

Sun fairly weak through high cloud, overcast for periods in west. Visibility very good.

How Cold? (at 750m)

12 to 15C.

Freezing Level

Above the summits.

Planning Outlook

Westerly weather patterns prevail into the new week bringing generally unsettled and cooler conditions - single-figure temperatures typical on the Munros and high tops elsewhere. On Monday, extensive rain spreads across Scotland, heaviest in the west. Winds strengthen, risk reaching gale force on many hills later on Monday, staying blustery widely into midweek. Rain extends south over England and Wales by Monday night into early Tuesday. The rest of the week likely sees showery rain common for all areas as low pressure dominates toward the north, the rain most persistent in western Scotland, but odd heavier bursts passing eastward, with a chance of thunder, especially later in week.