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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
Sunshine and showers
Hazy, some fog banks
Cool to mild

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Click here to download the latest PDF Last Updated Wed 4th Mar 26 at 4:13PM Last Updated Wed 4th Mar 26 at 4:13PM
View our low-graphics version Last Updated Wed 4th Mar 26 at 4:13PM Last Updated Wed 4th Mar 26 at 4:13PM

Viewing Forecast For

Brecon Beacons
Thursday 5th March 2026
Last updated Wed 4th Mar 26 at 4:13PM

Summary for all mountain areas

A slow-moving front from the west brings rain and low cloud to western Scotland, turning to snow on tops as colder air arrives; freezing level later below 800m. Patchy rain encroaching further into Cumbria with time. Some heavier thundery bursts possible in Wales. Strong southerlies ease and turn W-NW'ly.

Headline for Brecon Beacons

Some weak sun early, trending cloudy with rising risk of showers

How windy? (On the summits)

Southerly 20-25mph, a gradual easing, briefly 15mph or less afternoon, then reorienting northerly into evening/night and restrengthening, up to 30-35mph high western tops.

Effect of the wind on you?

Feeling blustery in exposure in the morning, improving to fairly small effects for a least several hours. Afternoon into evening brings renewed nuisance wind, perhaps strenuous conditions in exposure as night approaches.

How Wet?

Afternoon showery rain

The morning likely dry, then a risk of showers in the afternoon which may be locally heavy, risk isolated rumble of thunder. Into evening, patchy rain lingers.

Cloud on the hills?

Clear periods, deteriorating with time

Ribbons/banks of cloud at several elevations in the morning, some ragged patches possible on lower slopes too, but soon lifting and dissipating. Caps come and go on high tops for several hours before a more extensive sheet of cloud arrives from the west late in the day.

Chance of cloud free summits?

70% lowering to 30%

Sunshine and air clarity?

Weak sun through a veil of high cloud through morning, perhaps afternoon too but cloud increasingly thickening from the west. Visibility limited by haze.

How Cold? (at 750m)

7C lifting to 8C. Lowering slightly in the west later, then several degrees into night. Feeling near freezing in early wind.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Friday 6th March 2026
Last updated Wed 4th Mar 26 at 4:13PM

How windy? (On the summits)

North-northeasterly 25-30mph from dawn. Gradually easing, to 15mph by evening, direction becoming more variable.

Effect of the wind on you?

Walking inconvenienced in the morning and feeling chilly, effects becoming small with time.

How Wet?

Some patchy rain

Patches of rain from overnight continue into the morning, the greatest risk in the east with some heavier falls. Likely trending drier and lighter, though a risk of patches returning.

Cloud on the hills?

Most extensive early, may improve

From dawn, cloud may be extensive above 600m, lower patches probable too. A chance of improvement from the west, bases lifting somewhat with higher breaks, highest bases to the south/west of high tops, though eastern hills will struggle to clear.

Chance of cloud free summits?

30%

Sunshine and air clarity?

Largely overcast, some brighter moments to the west. Excellent visibility away from cloud/rain.

How Cold? (at 750m)

1 or 2C, highest temperatures east, and rising overnight.

Freezing Level

700-800m, though may just be touching summits in the east at first. Lifting later, above the summits overnight.

Viewing Forecast For

Brecon Beacons
Saturday 7th March 2026
Last updated Wed 4th Mar 26 at 4:13PM

How windy? (On the summits)

Southeasterly 15 to 20mph, local gusty spots around higher tops.

Effect of the wind on you?

Fairly small.

How Wet?

Precipitation unlikely

Cloud on the hills?

Lifting from hills

Some patchy cloud on hills or mist in valleys at first, likely to all disperse or lift above the hills.

Chance of cloud free summits?

80%

Sunshine and air clarity?

Cloud breaking to give occasional sun. Visibility very good, may be hazy lower down.

How Cold? (at 750m)

5 or 6C, slight rise into afternoon.

Freezing Level

Patchy slight frost in valleys at dawn, otherwise above freezing to tops.

Planning Outlook

Higher pressure extends back across the country to bring dry conditions on Saturday, feeling mild in sunshine by day after a chilly start. More cloud by Sunday as weak fronts encroach in from the west, some drizzly rain moving into western Scotland. Patchy rain likely in the west at least early in the new week, likely dropping back just below freezing on the Munros for a time with some snowfall on higher areas. Winds fairly light early week, then a risk of strengthening southwesterlies later in the week; changeable weather conditions with spells of rain coming in from the Atlantic. Remaining old snow cover on Scottish mountains stays largely consolidated with little change, only very patchy snow remains around highest tops in England and Wales.