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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

Windy, walking impeded
Patchy rain or drizzle
Hazy, some fog banks
Cool to mild

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Click here to download the latest PDF Last Updated Tue 24th Feb 26 at 4:54PM Last Updated Tue 24th Feb 26 at 4:54PM
View our low-graphics version Last Updated Tue 24th Feb 26 at 4:54PM Last Updated Tue 24th Feb 26 at 4:54PM

Viewing Forecast For

Brecon Beacons
Wednesday 25th February 2026
Last updated Tue 24th Feb 26 at 4:54PM

Summary for all mountain areas

Mild for the time of year; freezing levels above all summits, snow still lying on high Munros but continuing to thaw to the summits. Windy, strongest near Irish Sea and south Scotland with buffeting gusts. Rain and extensive hill cloud in west Scotland, passing east and into England and Wales with time.

Headline for Brecon Beacons

Largely dry, variable cloud, but deteriorating; blustery

How windy? (On the summits)

South-southwesterly 30-40mph, some gustiness over high terrain. Lighter wind at and before dawn, but soon reaching the stated range, first in the west; greatest risk of highest wind in the west too.

Effect of the wind on you?

Strenuous walking much of the day, at at times arduous in high exposure with significant wind chill. Strongest wind/gust may necessitate extra effort for stability.

How Wet?

Little rain until later, but damp/some drizzle

Some fine drizzle affects the high tops where in cloud, but most hills dry through morning and well into the day. Patchy rain approaches the Cambrians and hills west of Brecon with time, patches pushing east later afternoon into evening.

Cloud on the hills?

Fairly extensive, most variable east

From dawn, an extensive layer of cloud from lower slopes upward on southern aspects; north of high tops will see higher bases and perhaps some clear hills, some ragged patches at various heights. Variable for a time, some breaks, best chance eastern hills, becoming extensive afternoon.

Chance of cloud free summits?

30%, lowering to 10%

Sunshine and air clarity?

Best chance of bright/sunny breaks on lower northern slopes where visibility will be good, though considerable haze. Deteriorating later.

How Cold? (at 750m)

7C, lifting to 8C or locally 9C east of Brecon. Feeling just above freezing in wind.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Thursday 26th February 2026
Last updated Tue 24th Feb 26 at 4:54PM

How windy? (On the summits)

Southwesterly 35-40mph, a trend towards the higher end of the range with time and reaching up to 50mph+ over high terrain.

Effect of the wind on you?

Strenuous-to-arduous walking all day, strongest wind necessitating notable effort to maintain stability; significant wind chill.

How Wet?

Rain on-and-off

Rain comes and goes, often patchy and light northern slopes/mid Wales. Between pulses of rain, spotty rain in the wind continues to affect the southern Brecon Beacons, may set in for a time later.

Cloud on the hills?

Variable, fairly extensive

Cloud shrouds the high terrain most of the day, often to middle elevations of southern aspects and Cambrians. During rain breaks, bases will lift, a chance of higher breaks Black Mountains, but cloud returns again.

Chance of cloud free summits?

30%

Sunshine and air clarity?

Often cloudy, though a period of brighter skies/sun breaks is possible. Mixed visibility, good out of fog/rain, but a haze towards the sea.

How Cold? (at 750m)

6C, rising to 7C for a time afternoon. Feeling like -8C in the wind.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Friday 27th February 2026
Last updated Tue 24th Feb 26 at 4:54PM

How windy? (On the summits)

Highly uncertain: variable speed and direction possible, though a trend towards strengthening westerlies, up to 30mph.

Effect of the wind on you?

Uncertain, variable conditions: effects may be small for several hours but a deteriorating trend likely.

How Wet?

Morning rain likely, becoming patchy

A broad area of rain passes across the region overnight and through the early hours, followed by some patchy rain, primarily affecting hills to the west, dry intervals too.

Cloud on the hills?

Extensive early, improving

From dawn, a sheet of cloud shrouds the hills from middle slopes upward, ragged patches to lower slopes too. A lifting and breaking trend with time, largely isolating to high tops and a good chance of summit breaks too.

Chance of cloud free summits?

10% rising to 60%

Sunshine and air clarity?

Overcast and dull at dawn, increasingly clearing for regular sun bursts. Very good visibility, a haze towards coasts.

How Cold? (at 750m)

Range of 2 to 4C, starting on the mild side and timing of lowering uncertain. Feeling like -5 to -8C in strongest wind.

Freezing Level

Above the summits.

Planning Outlook

Thursday will be windy with a swathe of rain affecting all areas at some point. A low pressure core is likely to affect the country on Friday, but detail is highly uncertain: there is a risk of rain and strong wind for central and southern areas, a general cooling trend. Snow returning to the Scottish Highlands, the snowfall level lowering into nighttime. A fast-moving ridge of high pressure leads into Saturday, then a return to west-southwesterly wind with bands of rain passing west to east through the weekend into the following week. Mixed conditions are indicated in the following week, with low and high pressure competing for dominance: freezing levels will vary, high Scottish terrain often at or below freezing, the level occasionally lifting to and above tops.