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
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
Viewing Forecast For
Brecon Beacons
Wednesday 27th May 2026
Last updated
Tue 26th May 26 at
4:00PM
Summary for all mountain areas
A largely sunny day in NW Scotland, whilst low cloud in central-E Scotland & NE England in the morning will gradually thin and break, but may linger toward the North Sea. Gusty SE'ly winds for England & Wales, but remaining very warm. Localised thundery rain may develop in Wales, mainly south.
Headline for Brecon Beacons
Gusty wind. Very warm sun, high cloud, risk showers later.
How windy? (On the summits)
Southeasterly 15 to 25mph, some very gusty spots, tending to strengthen, up to 35mph at times afternoon onward, by evening 40mph in west, with highest gusts not always on tops.
Effect of the wind on you?
Blustery and increasingly gusty, buffeting on some terrain, the highest wind gusts not necessarily over the higher slopes.
How Wet?
Chance of a late thundery shower
An odd burst of showery rain possible mainly later afternoon into evening, chance of an isolated thundery downpour forming, particularly southwestern areas.
Cloud on the hills?
Some early cloud in east, clearing
Many mountains clear all day. Early patchy low cloud mainly east Wales, will lift and break off the hills in morning to leave all areas clear.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Patchwork of sunshine with thin high cloud, but tending to thicken during afternoon to cover more of the sky. Beware high UV and sunburn. Visibility good, but marked haze.
How Cold? (at 750m)
16 to 19C; already warm on tops from dawn, valleys start cooler.
Freezing Level
Well above the summits
Viewing Forecast For
Brecon Beacons
Thursday 28th May 2026
Last updated
Tue 26th May 26 at
4:00PM
How windy? (On the summits)
South turning southwesterly, in range 25 to 35mph, gusty at first, then mean speed generally increasing afternoon.
Effect of the wind on you?
Blustery, affecting ease of walking and balance on exposed terrain. May become widely strenuous over the hills.
How Wet?
Dawn thundery bursts may all clear
Possible sporadic overnight thundery downpours ongoing through to dawn, may soon largely clear northeastward by early morning. Then more likely dry, but some fine drizzle especially west Wales.
Cloud on the hills?
Varied, may fill in western hills
Ragged patches over hills at varied elevations during and just after rain for a time in morning, likely to lift and clear. During afternoon, low cloud may roll in from coast over many hills in west Wales.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Varied sun and high cloud, more overcast skies likely for a time, mainly early in day. Rather hazy, poorer visibility if in rain; may improve for a time, risk mistier later west.
How Cold? (at 750m)
15 to 17C.
Freezing Level
Well above the summits.
Viewing Forecast For
Brecon Beacons
Friday 29th May 2026
Last updated
Tue 26th May 26 at
4:00PM
How windy? (On the summits)
Southwesterly 10 to 20mph.
Effect of the wind on you?
Fairly small.
How Wet?
Rain unlikely
Chance of a brief drizzly shower west coastal Cambrian hills in the morning.
Cloud on the hills?
Tending to clear
Banks of cloud over western hills, mostly Cambrians in morning. Likely to increasingly break up during day.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Occasional sun mostly toward east. Visibility good, hazier west coastal areas.
How Cold? (at 750m)
10 to 12C.
Freezing Level
Above the summits.
Planning Outlook
Very warm air wafts north across the Highlands by Thursday, but this also brings a risk of scattered thundery showers forming; strong and gusty southerly winds. Gale or near-gale force southwesterlies into Friday for the Highlands, strongest toward the northwest, where accompanied by rain, drizzle and low cloud. The recent heat across England and Wales will ease back to nearer average temperatures into the weekend. From the weekend into next week, southwesterlies will prevail, bringing changeable conditions in from the Atlantic - rain, drizzle and low cloud most common on western coastal mountains, but showery days are likely more widely at times. Temperatures near average, some cooler days.