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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.

Thursday's Forecast

Moderate breeze, locally gusty
Patchwork of cloud and sun
Clear
Warm

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Click here to download the latest PDF Last Updated Wed 5th Aug 26 at 3:58PM Last Updated Wed 5th Aug 26 at 3:58PM
View our low-graphics version Last Updated Wed 5th Aug 26 at 3:58PM Last Updated Wed 5th Aug 26 at 3:58PM

Viewing Forecast For

Brecon Beacons
Thursday 6th August 2026
Last updated Wed 5th Aug 26 at 3:58PM

Summary for all mountain areas

Blustery with showers into Scotland and northern England in the morning; wind and rain easing, sun breaking out with time, mild high temperatures. Risk more frequent showers and strong wind in the Peak District through morning, improving afternoon. Rare early showers in Wales, cloud clearing most hills.

Headline for Brecon Beacons

Breezy early, easing, and mostly sunny

How windy? (On the summits)

West-northwesterly 25-30mph at dawn, gradually easing through the day with sustained speeds to 15mph and sometimes less afternoon.

Effect of the wind on you?

Fairly small, but breezy and rather cool on tops early morning.

How Wet?

Substantially dry

A few drizzly showers drift onto hills from the northwest in the early hours (mostly affecting the Cambrian mountains), fading for dry hills.

Cloud on the hills?

Clearing tops

Patchy cloud on higher slopes in the morning, soon lifting after sunrise, a few odd patches on high ridges and summits if showers occur but clearing the summits with time.

Chance of cloud free summits?

90%

Sunshine and air clarity?

Patchwork of cloud and sun, more extensively sunny later in the day but some high cloud will weaken the sun's strength. Visibility excellent.

How Cold? (at 750m)

8C rising to 12C afternoon. Feeling close to freezing if exposed to wind on tops at first.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Friday 7th August 2026
Last updated Wed 5th Aug 26 at 3:58PM

How windy? (On the summits)

A variable southwesterly 10mph and often less.

Effect of the wind on you?

Negligible.

How Wet?

Likely dry

A fine drizzle may affect high tops in the early hours, soon fading for dry hills.

Cloud on the hills?

Substantially clear

Patchy cloud at varied elevations in the morning begins lifting to high terrain after dawn. Most summits will clear, but a few odd banks may continue to graze the highest summits to the west.

Chance of cloud free summits?

80%

Sunshine and air clarity?

Often sunny but varied patchy cloud around. Very good visibility.

How Cold? (at 750m)

9C rising to 12 or 13C, staying elevated into night.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Saturday 8th August 2026
Last updated Wed 5th Aug 26 at 3:58PM

How windy? (On the summits)

South-southwesterly 10-20mph.

Effect of the wind on you?

Fairly small.

How Wet?

Mostly dry, a little spotty rain

A few light patches of rain drift onto the hills from the southwest, but most slopes will be dry will into the day. A rising risk of more notable patches later in the day.

Cloud on the hills?

Little or none

A few patchy banks on high terrain early in the day, these soon lifting and dissipating for clear hills.

Chance of cloud free summits?

90%

Sunshine and air clarity?

Mostly sunny but weakened by high cloud. Very good visibility.

How Cold? (at 750m)

11C rising to 16C, temperatures slow to drop into night.

Freezing Level

Above the summits.

Planning Outlook

Westerly winds prevail into the weekend and further weather fronts will come in off the Atlantic, bringing rain and low cloud to most mountains. Saturday into Sunday in particular will see extensive cloud and heavy rain across Scotland with strong wind, bands of rain passing to the south and east into England and Wales. A ridge of high pressure returns early next week for warmer temperatures and clearer hills, though western Scotland likely remains fairly cloudy with some drizzle on the high tops. Following this high pressure, west-southwesterly flow returns and a series of low pressure systems will pass west-to-east across the British Isles with periods of strong wind (sometimes gale-force), rain, and low cloud, western hill groups aways most affected. Unsettled conditions likely persist into next weekend.