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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.

Today's Forecast

Moderate breeze, locally gusty
Frequent or persistent rain
Poor visibility
Cool to mild
Flooding

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Click here to download the latest PDF Last Updated Wed 5th Nov 25 at 4:30PM Last Updated Wed 5th Nov 25 at 4:30PM
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Viewing Forecast For

Brecon Beacons
Thursday 6th November 2025
Last updated Wed 5th Nov 25 at 4:30PM

Summary for all mountain areas

Mild and damp southerly air - lowest cloud on south-facing hills. Morning rain and drizzle in the Highlands easing off, some rise of cloud base. Gusty in places, strongest wind western Scotland. England sees little more than patchy rain or drizzle, whilst Wales has some pulses of heavier rain moving up from the south.

Headline for Brecon Beacons

Bursts of rain moving north, low cloud. Moderate breeze.

How windy? (On the summits)

Southerly 15 to 20mph, gusty around rain occasional 25mph.

Effect of the wind on you?

Mostly small, local gusts sometimes affecting comfortable walking on exposed tops.

How Wet?

Local heavy bursts of rain morning into middle of day

Scattered showery bursts of rain pushing up from the south in the morning, initially toward the west, then more widely pushing north for a time middle of day, chance of very isolated hail and thunder. One or two showery bursts continue through dusk. Wet underfoot, streams remaining fast-flowing, some flooding.

Cloud on the hills?

Very extensive

Hill fog will be widespread and to very low levels for much of the day, especially so hills near and west of Brecon.

Chance of cloud free summits?

10%

Sunshine and air clarity?

Mostly overcast. Visibility rather hazy and becoming widely poor in rain and drizzle.

How Cold? (at 750m)

Around 10C, fairly humid.

Freezing Level

Above the summits

Viewing Forecast For

Brecon Beacons
Friday 7th November 2025
Last updated Wed 5th Nov 25 at 4:30PM

How windy? (On the summits)

Southerly 20-30mph, at times higher speeds up to 35mph, notably later in the day.

Effect of the wind on you?

Walking becoming impeded on high ground, particularly later when strenuous conditions likely set in.

How Wet?

Rain increasingly widespread afternoon

Patchy rain onto western slopes through the morning merges into broader areas of rain through afternoon. Rain becomes persistent for several hours as dusk approaches.

Cloud on the hills?

Extensive high tops and southern slopes

Fairly extensive above 600-700m most of the day with cloud to lower elevations on southern slopes. Higher bases towards mid-Wales, highest in the east with some local breaks to summits. Bases drop further as afternoon rain arrives.

Chance of cloud free summits?

40%

Sunshine and air clarity?

Little sunshine, if any. Excellent visibility, turning poor as rain sets in.

How Cold? (at 750m)

8 or 9C.

Freezing Level

Above the summits

Viewing Forecast For

Brecon Beacons
Saturday 8th November 2025
Last updated Wed 5th Nov 25 at 4:30PM

How windy? (On the summits)

Southwesterly 20 to 25mph.

Effect of the wind on you?

Feeling breezy over higher terrain, but modest effect on walking; some gustier locations.

How Wet?

Local drizzly showers mostly west

Drizzly patches most common on hills toward south and west, occasionally a light shower. Often dry eastern mid-Wales.

Cloud on the hills?

Lowest and most extensive morning

Shrouding the hills most or all day, some different fog layers possible, including some lower slopes in the morning. Lifting with time toward 600-700m, some breaks mostly eastern areas afternoon.

Chance of cloud free summits?

30%

Sunshine and air clarity?

Largely cloudy, glimpses of sun mostly east Wales afternoon. Mostly misty morning at various levels, some improvement into afternoon.

How Cold? (at 750m)

6 or 7C.

Freezing Level

Above the summits

Planning Outlook

Staying mild with low cloud, drizzle and rain at times through into next week. Areas northeast of major hill groups seeing least rain and highest cloud breaks. Southerly winds of varied strengths, sometimes more blustery, approaching gale-force in exposed western areas. Some drier areas into the weekend, then a risk of heavier rain returning from the west, soonest into Wales and southwest Scotland on Sunday. Further into next week, easterly winds are likely to develop for Scotland, bringing drier weather to the west, and potentially much colder with time. England & Wales may remain frequently wet under slow-moving low pressure.