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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.

Sunday's Forecast

Light wind, negligible impact
Patchwork of cloud and sun
Warm

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Click here to download the latest PDF Last Updated Sat 25th Apr 26 at 3:56PM Last Updated Sat 25th Apr 26 at 3:56PM
View our low-graphics version Last Updated Sat 25th Apr 26 at 3:56PM Last Updated Sat 25th Apr 26 at 3:56PM

Viewing Forecast For

Brecon Beacons
Sunday 26th April 2026
Last updated Sat 25th Apr 26 at 3:56PM

Summary for all mountain areas

Showers in Scotland spread east, turning heavy afternoon. Fog lowering to high terrain in the west Highlands, becoming cooler here. Patchy dawn mist England and Wales, a broader low layer of sea fog east of the Pennines, lifting for clear hills; risk of a few late showers in north England. A cool start, becoming mild.

Headline for Brecon Beacons

Warm with a mix of cloud and sun; small chance of showers east

How windy? (On the summits)

South-southwesterly 10-15mph, up to 20mph early in the day. Trending variable in direction and towards lower speeds, perhaps a lull by evening.

Effect of the wind on you?

Mostly small, through a notable breeze in the morning, some gustiness too (not just on high terrain).

How Wet?

Likely dry

Local showers here and there, the showers generally light and fleeting and concentrated to the Cambrians/mid-Wales. The Brecon Beacons likely stay entirely dry.

Cloud on the hills?

Likely cloud-free

Patchy mist in eastern valleys, this soon dissipating after sunrise for cloud-free hills.

Chance of cloud free summits?

Above 90%

Sunshine and air clarity?

Often sunny, though weakened by high cloud, which may thicken at times. Very good visibility, some early haze.

How Cold? (at 750m)

10 or 11C, may rise a degree. Starting several degrees cooler in the valleys, rising to 17C, locally 19C valleys near Black Mountains.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Monday 27th April 2026
Last updated Sat 25th Apr 26 at 3:56PM

How windy? (On the summits)

Northerly 10-15mph; may shift northeasterly afternoon, notable gusts to 20mph.

Effect of the wind on you?

Fairly small, though some inconvenient gusts over high terrain at times.

How Wet?

Chance scattered showers, mostly dry

Scattered showers here and there, greatest risk over eastern hills.

Cloud on the hills?

Soon mostly clear

Banks of cloud at various elevations from dawn, lifting to mostly 800-900m and up through morning and likely breaking off the summits. Some risk of caps returning to high tops if afternoon showers occur.

Chance of cloud free summits?

Rising to 80%

Sunshine and air clarity?

Mostly sunny until afternoon, then a patchwork of cloud and sun. Good visibility, but a lingering haze.

How Cold? (at 750m)

8 to 10C.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Tuesday 28th April 2026
Last updated Sat 25th Apr 26 at 3:56PM

How windy? (On the summits)

Northeasterly 15-25mph. Notable gusts, not just on high exposed terrain.

Effect of the wind on you?

Fairly small, gusts may begin to impede walking.

How Wet?

Scattered showers

Occasional showers, mostly light, and largely in east Wales. A few showers may drift further west.

Cloud on the hills?

Soon clear

A layer of cloud above 600m early, most extensive eastern hills, this lifting through morning, likely clearing the summits by midday. Small chance a few odd banks drifting over highest eastern summits.

Chance of cloud free summits?

90%

Sunshine and air clarity?

A patchwork of cloud and sun, best chance of extended sun breaks west. Excellent visibility.

How Cold? (at 750m)

5 to 8C.

Freezing Level

Above the summits.

Planning Outlook

Monday is likely showery, risk heavy with lightning in England. An easterly wind then gradually establishes in England and Wales, chilly nights and mornings with patchy dawn mist and light frosts, this soon fading for warm days. High pressure remains dominant through the week: regularly sunny and pleasantly warm days; summit temperatures often at or above 10C, many valleys will warm toward 20C or higher afternoon. Risk of sunburn in strong sunshine and very dry springtime ground conditions with high risk of wildfire. Detail becomes uncertain into next weekend, but a rising risk of showers and longer spells of rain, mostly England and Wales, and likely turning cooler into the following week as wind shifts northerly.