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
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Very warm
Warm conditions across the hills, rising above 15C on tops. Increasingly hot on lower terrain, reaching 25C+ in many valleys. Beware of dehydration.
Click an icon for more information or click here for a key to all icons.
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Very warm
Warm conditions across the hills, rising above 15C on tops. Increasingly hot on lower terrain, reaching 25C+ in many valleys. Beware of dehydration.
Viewing Forecast For
Brecon Beacons
Tuesday 25th August 2026
Last updated
Mon 24th Aug 26 at
4:26PM
Summary for all mountain areas
Early cloud and drizzle in northeast England and east Scotland. Cloud lifts, sun breaking out; cloud caps cling to high east Scotland tops, a little light rain passing westward. Wales and west parts of England and Scotland largely dry with little hill cloud. Wind strengthens into night in England and Wales.
Headline for Brecon Beacons
Becoming very warm; rising risk of rain, particularly later
How windy? (On the summits)
Easterly 20-30mph, trending towards lighter speeds and as low as 15mph for several hours, restrengthening into evening/night.
Effect of the wind on you?
Fairly small but feeling breezy over higher terrain, in places more noticeably gusty, particularly early when balance may just become affected.
How Wet?
Risk bursts of rain arriving later
The hills are likely dry through morning. Through afternoon, a rising risk of spots of rain arriving from the south, well-scattered and most hills staying dry, but then heavier bursts of rain increasingly likely into evening/night.
Cloud on the hills?
Little or none
Patchy cloud banks on some eastern slopes for a few hours from dawn will all clear.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sun and thin high cloud, may thicken to cover the sky for periods later. Visibility good, but slight haze particularly eastern areas.
How Cold? (at 750m)
11C rising to 17C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 26th August 2026
Last updated
Mon 24th Aug 26 at
4:26PM
How windy? (On the summits)
Southeasterly 15-25mph, gusty early, but tending to ease with time.
Effect of the wind on you?
Fairly small.
How Wet?
Risk thundery showers
Patchy drizzle, locally a burst of rain. Mainly during afternoon, risk local heavier bursts with possible thunder. Further thundery rain may develop onward into the night more widely from south.
Cloud on the hills?
Fairly extensive, lifting, but variable
Cloud fairly widely shrouding hills above 400-600m from dawn, some lower banks south and east slopes. Tending to rise and break to tops, some patches may linger, and variably lowering in rain.
Chance of cloud free summits?
20% rising to 60%
Sunshine and air clarity?
Occasional weak sun through high cloud, often overcast. Hazy start, visibility improving to be good when dry.
How Cold? (at 750m)
13C rising to 16C, quite humid.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 27th August 2026
Last updated
Mon 24th Aug 26 at
4:26PM
How windy? (On the summits)
Southeasterly 15-25mph, shifting southeasterly with time; quite gusty much of the day.
Effect of the wind on you?
Fairly small, but nuisance gusts affect walking at times through much of the day.
How Wet?
Risk thundery showers
Thundery rain from overnight breaks through morning into showers, heavy bursts likely with continued risk of thunder.
Cloud on the hills?
Gradually lifting, increasingly clear tops
Varied banks of cloud at most heights in the morning, gradually lifting, shrouding high terrain for a time, particularly when showers occur; largely clear of high summits afternoon, though caps return during heavier rain.
Chance of cloud free summits?
40% rising to 70%
Sunshine and air clarity?
Patchwork of cloud and sunshine. Visibility becomes very good out of showers.
How Cold? (at 750m)
13 or 14C; fluctuating by several degrees around showers.
Freezing Level
Above the summits.
Planning Outlook
Low pressure to the south will develop and drift across Britain into the second half of this week bringing increasingly wet, warm, and humid conditions widely. Areas of rain will drift northward during Wednesday, possibly thundery showers forming over England & Wales. Heavy and thundery rain likely affects England, Wales & southern Scotland on Thursday-Friday, potentially prolonged heavy falls bringing a risk of flooding locally. Northwest Scotland likely driest. The eastern Highlands often covered in low cloud. Strong gusty easterly winds prevail for a few days through midweek. Into the weekend it remains unsettled with areas of rain and heavy showers, plus cooler northwesterly winds developing.