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.

Today's Forecast

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Click here to download the latest PDF Last Updated Mon 5th Jan 26 at 4:30PM
View our detailed version Last Updated Mon 5th Jan 26 at 4:30PM

Viewing Forecast For

Brecon Beacons
Tuesday 6th January 2026
Last updated Mon 5th Jan 26 at 4:30PM

Summary for all mountain areas

Intermittent snowfall to lower slopes pushes widely eastwards, increasingly more prolonged and heavier snow from the west across the Highlands, though near the west coast becoming sleet or rain to mid-heights. Hill snow and rain lower down setting in for England and Wales from the west afternoon. Wind varied, but tending to strengthen.

Headline for Brecon Beacons

Snow flurries, later snow-rain mix. Increasingly windy.

How windy? (On the summits)

Westerly 20-25mph, increasing with time to 35-40mph during afternoon, stronger gusts 50mph for a time by dusk, easing slightly evening hours, but then northwesterly 40-50mph into night.

Effect of the wind on you?

Walking becoming strenuous with time, more arduous later, buffeting gusts; significant wind chill.

How Wet?

Patchy snow, mostly in the west, later rain to mid-slopes.

Bands of patchy snow passing west-to-east through the day; very little precipitation east of Brecon. Becoming more frequent hill snow up to dusk, becoming rain to mid or some upper slopes in west.

Cloud on the hills?

Mostly high west terrain, variably lower

Variable cloud on high terrain, some breaks off summits, but lowering to middle slopes during snow showers. A trend towards more persistent cloud with time afternoon. Easternmost mountains may only see cloud on high terrain during daylight.

Chance of cloud free summits?

30%

Sunshine and air clarity?

Some bright/sunny spells will break out, but cloud will be extensive for periods too. Variable visibility, very good for periods, but rapidly deteriorating to very poor in snow.

How Cold? (at 750m)

-2C, rising slightly with time, reaching 0C from dusk, but starting to lower overnight. Feeling like -13C in direct wind.

Freezing Level

Terrain widely frozen from dawn, lifting with time to 400-600m, up to 800m or briefly higher by evening, especially in west, then falling gradually again well into night.

Viewing Forecast For

Brecon Beacons
Wednesday 7th January 2026
Last updated Mon 5th Jan 26 at 4:30PM

How windy? (On the summits)

Northwesterly 25 to 35mph, strongest around dawn, lessening afternoon, shifting westerly; increasing again into night.

Effect of the wind on you?

Be prepared for marked wind chill on exposed high terrain, risk very blustery at first, becoming smaller during daytime.

How Wet?

Largely dry, rare showers

Isolated coastal showers, flurries on hills locally in west. Largely dry east. Into night, risk some sleet or rain moving in from west.

Cloud on the hills?

Patches locally, clearer east/south

Patchy cloud over higher tops, mostly western areas, but possibly good breaks to many tops across Brecon Beacons and east Wales during the daytime.

Chance of cloud free summits?

70%

Sunshine and air clarity?

Mix of cloud and sun, some high cloud moving in from west later. Visibility mostly very good.

How Cold? (at 750m)

-1C, tending to rise mainly after dark. Feeling as cold as -12C if exposed to stronger wind early in day.

Freezing Level

Slight frost inland valleys at first. Otherwise 500-600m, or slightly higher west Wales, but icy surfaces likely.

Viewing Forecast For

Brecon Beacons
Thursday 8th January 2026
Last updated Mon 5th Jan 26 at 4:30PM

How windy? (On the summits)

Direction and speed likely to vary: mostly westerly for a time, 10 to 20mph. May strengthen rapidly evening-night.

Effect of the wind on you?

Mostly small during daytime.

How Wet?

Patchy light snow

Occasional snow flurries on tops, sleet or rain to mid-slopes. Toward evening and night, risk of more persistent snow developing.

Cloud on the hills?

Varied cloud and fog

Patchy cloud around some higher tops, possible fog some valleys also. Risk cloud banks developing and lowering more widely over hills.

Chance of cloud free summits?

40%

Sunshine and air clarity?

Varied cloud and weak sun, thin high cloud may thicken to cover the sky. Visibility very good, possible haze lower down.

How Cold? (at 750m)

-1C.

Freezing Level

700 to 800m, partly frozen terrain lower down, slight frost from dawn inland valleys. May then lower considerably later.

Planning Outlook

Freezing conditions persist this week - some changes by the weekend as Atlantic lows try to circulate further northwards, bringing a period of thawing mainly to England and particularly Wales, whilst Scottish mountains may see brief if any periods of above-freezing conditions even onward into mid-month. Complex weather systems, with potentially a deep low moving across southern Britain by Thursday-early Friday this week which may bring some snowfalls to Wales and the southern Pennines. Often lighter winds in Scotland for a few days, but another low may track further north later in weekend bringing widespread gales, and mostly rain to England and Wales, snow and lowland rain to Scotland.