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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.

Wednesday's Forecast

Moderate breeze, locally gusty
Patchwork of cloud and sun
Cool to mild

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Click here to download the latest PDF Last Updated Tue 30th Jun 26 at 4:28PM Last Updated Tue 30th Jun 26 at 4:28PM
View our low-graphics version Last Updated Tue 30th Jun 26 at 4:28PM Last Updated Tue 30th Jun 26 at 4:28PM

Viewing Forecast For

Brecon Beacons
Wednesday 1st July 2026
Last updated Tue 30th Jun 26 at 4:28PM

Summary for all mountain areas

Rapidly strengthening wind into the afternoon, gales develop increasingly widely later. Odd showers, then rain sweeps into western Scotland through the afternoon, setting in. England & Wales largely dry until evening. Cloud fairly widely on western hills in the morning, lifting for a time prior to rain.

Headline for Brecon Beacons

Varied cloud, wind increasing, gales and some rain into night.

How windy? (On the summits)

West-northwesterly 15-20mph in morning, then strengthening west-southwesterly, to 25mph afternoon, later 40mph, up to dusk 50mph, turning westerly with possible stronger gusts into night.

Effect of the wind on you?

Fairly small in the morning, but becoming more blustery, walking uncomfortable later, increasingly arduous in exposure, marked wind chill into evening. Difficult conditions over tops into the night.

How Wet?

Largely dry

Generally dry much of the day, small chance an isolated light shower. Local spots of rain may move onto western Cambrians late in daytime, but more likely substantially dry until dusk or into night, then a little patchy rain.

Cloud on the hills?

Varied in morning, lifting until later

Cloud banks mostly higher and western hills in the morning, may cover some mid slopes for a time. Lifting higher and breaking from most tops middle of day into afternoon. Lowering again during evening, filling in over western hills.

Chance of cloud free summits?

30% rising to 80%, by dusk 20% west

Sunshine and air clarity?

Patchwork of cloud and sun, giving way to high cloud thickening from west afternoon. Visibility excellent out of cloud.

How Cold? (at 750m)

9 or 10C, little variation all day. Feeling near or later below freezing on high tops as wind increases.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Thursday 2nd July 2026
Last updated Tue 30th Jun 26 at 4:28PM

How windy? (On the summits)

Westerly, 50mph dawn-early morning, lessening to 25mph during morning, 20-25mph in afternoon.

Effect of the wind on you?

Difficult conditions from overnight and early in the day, walking arduous over high terrain, gradually improving.

How Wet?

Showers fade

Showery rain from overnight and after dawn, most frequent western Cambrians for a few hours, tending to become well scattered, by afternoon generally dry.

Cloud on the hills?

Lifting and clearing most tops

Covering high terrain fairly widely from dawn, soon mostly confined to highest tops and gradually tending to thin and break above most hills, some patches west.

Chance of cloud free summits?

30% rising to 80%

Sunshine and air clarity?

Occasional sun breaking through, most often eastern lower slopes. Visibility very good below cloud, some haze toward west coast.

How Cold? (at 750m)

10C rising to 12C afternoon. Directly in the stronger winds feeling -3C on tops, then +5C later.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Friday 3rd July 2026
Last updated Tue 30th Jun 26 at 4:28PM

How windy? (On the summits)

Southwesterly 20 to 30mph, occasionally may increase to 35mph at least in gusts.

Effect of the wind on you?

Blustery on the hills, in places starting to affecting comfortable walking with noticeable gustiness in places.

How Wet?

Patchy drizzle west

Occasional drizzle mainly western hills, chance of some light rain at times, but small amounts; little if any east Wales.

Cloud on the hills?

Patchy cloud mostly western tops

Some cloud banks mostly over higher and western slopes, particularly Cambrians, a chance of filling in for periods. Some patches, more often clear southeastwards.

Chance of cloud free summits?

50% west, 70% south & east.

Sunshine and air clarity?

A mix of sun and high cloud. Visibility very good.

How Cold? (at 750m)

12C rising to 14C afternoon. Feeling like 3 to 5C directly in the wind.

Freezing Level

Above the summits.

Planning Outlook

West to southwesterlies prevail across northern Britain. Rain, drizzle and low cloud most frequent over western hills from Lake District northward. Temperatures near average, but feeling cool in exposure to wind on tops. An improving trend from the south over the weekend as higher pressure builds, best conditions for Wales and eastern hills elsewhere. Drier and warmer conditions more likely into next week, very warm some days England and Wales, though southwesterlies still bring more cloud to western Scotland, some rain at times, wettest toward northwest.