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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.

Friday's Forecast

Gale force, walking arduous
Patchy rain or drizzle
Cool to mild

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Click here to download the latest PDF Last Updated Thu 8th Oct 26 at 4:00PM Last Updated Thu 8th Oct 26 at 4:00PM
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Viewing Forecast For

Brecon Beacons
Friday 9th October 2026
Last updated Thu 8th Oct 26 at 4:00PM

Summary for all mountain areas

Gale-force winds across all mountains will make walking challenging and lower temperatures also adds to a significant chill factor. A front clears south over England & Wales with a spell of early rain. Then broadly showery, frequent in west, falling as snow on Scottish Munros, also hail.

Headline for Brecon Beacons

Gales on tops, rain for a time, then showers later.

How windy? (On the summits)

Westerly 40-50mph morning, lessening to around 35-40mph, but gusty all day, most powerful to 60mph early.

Effect of the wind on you?

Conditions at least arduous with buffeting affecting balance, more challenging to start. Notable wind chill

How Wet?

Morning rain, substantially dry afternoon

Rain and drizzle most of the morning, the rain fairly persistent with some heavy falls. Rain will break for substantially dry conditions, a few scattered showers on hills nearest Irish Sea, increasing into night.

Cloud on the hills?

Extensive morning, often clear afternoon

Blanket cloud to 500m at least, often lower, particularly on south aspects in heavy rain where fog will form into valleys. Timing uncertain, but cloud will rapidly break up for several afternoon hours of minimal hill cloud.

Chance of cloud free summits?

10% rising to 70%

Sunshine and air clarity?

Overcast, dull most of morning with poor visibility. Afternoon is mostly sunny though hazy.

How Cold? (at 750m)

11 or 12C most of morning, suddenly cooling to 7 or 8C. Feeling like -2 to -5C in direct wind.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Saturday 10th October 2026
Last updated Thu 8th Oct 26 at 4:00PM

How windy? (On the summits)

Westerly 30 to 40mph, quite gusty, may lessen somewhat later.

Effect of the wind on you?

Strenuous to arduous walking, in places buffeting affecting balance. Considerable wind chill.

How Wet?

A little rain

Some showery rain will drift onto the Cambrian mountains from the Irish Sea, generally light in nature. Rain sometimes spreads more broadly across Brecon Beacons, but rainfall amounts to little and some eastern mountains stay dry.

Cloud on the hills?

Largely or entirely clearing

A little ragged cloud here and there on sheltered slopes to start the day, lifting and generally breaking up. A few cloud banks will cling to the high Cambrians and highest Brecon Beacons, but this will ultimately clear.

Chance of cloud free summits?

Rising to 80%

Sunshine and air clarity?

Often sunny, more patchy in the west/around the Cambrians. Good visibility though a haze.

How Cold? (at 750m)

5 or 6C. Feeling like -5 to -8C in direct wind.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Sunday 11th October 2026
Last updated Thu 8th Oct 26 at 4:00PM

How windy? (On the summits)

Northwesterly 20mph from dawn into morning, easing to 10mph into afternoon.

Effect of the wind on you?

Early in the day feeling chilly on exposed tops, otherwise small.

How Wet?

Early local showers fade

Brief scattered showers in morning, mostly west Wales, fading to be largely dry. Rain may push in from west into night.

Cloud on the hills?

Rare patches

Some patchy cloud may drift around upper slopes in the morning, but generally all dispersing or lifting above hills.

Chance of cloud free summits?

90%

Sunshine and air clarity?

Patchwork of cloud and sun; high cloud may start to build from west later. Visibility excellent.

How Cold? (at 750m)

5C rising to 7C afternoon, then little change after dark. Feeling just below 0C in early breeze.

Freezing Level

Above the summits. Slight frost inland valleys at dawn.

Planning Outlook

The weekend begins windy with gales over all mountains, severe on some high tops; showers or more constant rain west, brighter breaks east. Sunday sees a more settled day as a small ridge of high pressure builds from the west; wind eases, sun and cloud clearing most tops, cool temperatures. Next week sees continued mixed weather: bands of rain coming and going, temperatures similarly fluctuating: generally mild, briefly chilly in Scotland with freezing levels temporarily onto high Munros where rain turns to snow; any accumulating snow soon thaws. West-southwesterly winds will be dominant, often quite strong, gales at times, but this allows for drier, brighter windows on eastern hill groups between weather systems.