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.
Saturday'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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Brecon Beacons
Saturday 9th May 2026
Last updated
Fri 8th May 26 at
4:28PM
Summary for all mountain areas
Chilly but largely dry with light winds for Highlands, broken cloud lifting above most tops, isolated showers / flurries. Greater chance of heavier showers south-central Highlands later. Grey and damp for the Pennines, fresh NE'ly winds. Localised heavy downpours near Peak District & mid-Wales later afternoon.
Headline for Brecon Beacons
Localised heavy downpours form, risk thunder. Gustier wind later.
How windy? (On the summits)
Easterly 10-15mph or less particularly mid-Wales early in day, 15-20mph more southern areas, though may be less in morning. Tending to rise to 20-25mph later afternoon, becoming gustier.
Effect of the wind on you?
Fairly small much of day, but some breezier spots and becoming more noticeably gusty around exposed tops afternoon into evening.
How Wet?
Risk localised thundery showers later
Much of the day may well remain dry, especially southern areas. But increasing risk during afternoon of localised showers forming, later slow-moving downpours, risk of thunder, focused on mid-Wales.
Cloud on the hills?
Mostly little
Much cloud above the hills, but some banks may drift over tops mostly eastern areas. Ragged patches at various heights during/after showers.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Sun often weak through a veil of high cloud, may cloud over more widely. Visibility very good, reducing where showers form locally.
How Cold? (at 750m)
7 to 9C. Feeling nearer 0C if exposed to wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 10th May 2026
Last updated
Fri 8th May 26 at
4:28PM
How windy? (On the summits)
Northeasterly 25 to 35mph and notably gusty particularly morning; speeds may lessen a little only later in day.
Effect of the wind on you?
Blustery with considerable wind chill. Gusty spots affect ease of walking and balance on ridges.
How Wet?
Rain unlikely
Chance of brief spots of drizzle or light rain early in the day, mainly eastern hills, otherwise dry.
Cloud on the hills?
Early cloud largely lifting
Cloud banks drifting over higher slopes mostly eastern areas in the morning, tending to lift, but may take a few hours to fully clear. Most hills often clear afternoon.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Fairly cloudy in east in morning, some occasional sun toward west Wales, sun may break through more afternoon. Visibility very good.
How Cold? (at 750m)
3 to 6C, coolest on eastern hills in morning. Feeling as cold as -8C directly in the wind in morning, -4C afternoon.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 11th May 2026
Last updated
Fri 8th May 26 at
4:28PM
How windy? (On the summits)
North-northwesterly 15-25mph, may ease a little afternoon.
Effect of the wind on you?
Fairly small, but blustery in exposure on higher tops and rather chilly especially in the morning.
How Wet?
Rare showers
One or two showers mainly toward west in morning, then an odd one forming mainly further east into afternoon.
Cloud on the hills?
Mostly little or lifting above tops
Some patchy cloud drifting over higher slopes in the morning, but soon mostly above the tops.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Patchy sunshine. Visibility excellent.
How Cold? (at 750m)
3C early morning, rising to 5C afternoon. Feeling near -5C in the wind in morning.
Freezing Level
Above the summits.
Planning Outlook
A chilly outlook into mid-May, with higher Scottish mountains staying near or often below freezing point as northwesterly air prevails. Higher tops in England and Wales also dropping intermittently to freezing point. Wind-speed varying day-to-day, but prepare for often considerable chill-factor on all mountains. Some frost overnight into valleys when skies are clear. Broadly showery weather over the next 10-day period, plus some fronts bringing persistent rain mostly to northwestern Scotland, often falling as snow on mountain tops, sometimes to below 600m. Drier intervals too, some days with fewer showers and broken cloud lifting above the summits, varying locally day-to-day.