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
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
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.
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Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
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
Wednesday 3rd June 2026
Last updated
Tue 2nd Jun 26 at
3:39PM
Summary for all mountain areas
A band of rain sweeps across the country bringing several hours of persistent rain and extensive fog: first in Wales, then England and much of Scotland by early afternoon. Breaking to frequent showers, risk isolated lightning. Very windy England and Wales, gales over Wales summits.
Headline for Brecon Beacons
Rain soon sets in, afternoon showers; very windy, sometimes gales
How windy? (On the summits)
Shifting southerly from southwesterly just at dawn, speeds already rising to 35-45mph by mid-morning sometimes 50mph over tops. By early afternoon, direction southwesterly again, sustained speeds 40-45mph and often 50mph.
Effect of the wind on you?
Walking arduous in exposure most of the day, balance becoming difficult on the high tops with significant wind chill.
How Wet?
Heavy rain, drizzle, then showery
Rain extends in from the west, soon fairly persistent, heaviest west Wales and south slopes, drizzly even when heavier rain fades. Showery bursts afternoon-evening, chance isolated thunder, any drier windows very short-lived.
Cloud on the hills?
Extensive
Blanket low cloud across the hills, from lower slopes up southwest, especially coasts, rarely above 500-600m inland, highest bases east Wales; some broader breaks here just around dawn. Base rising afternoon, but rarely above tops, ragged patches lower again in showers.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Largely cloudy, dull, murky toward southwest in rain; hazy at best. Better visibility eastern hills below cloud, variably poor here too.
How Cold? (at 750m)
7 or 8C, a slight rise as noon approaches, only to 9C. Wind chill feeling like -2 to -4C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 4th June 2026
Last updated
Tue 2nd Jun 26 at
3:39PM
How windy? (On the summits)
Southwest soon westerly, 25 to 40mph, speeds may vary, perhaps lighter end of the range midday/afternoon hours.
Effect of the wind on you?
Strenuous walking conditions, frequent buffeting affecting balance on exposed high terrain. Marked wind chill.
How Wet?
Bursts of rain on and off, risk lightning
Showery rain throughout the day, some heavy bursts increasingly extend eastwards, small risk of thunder. A drier window possible afternoon, some drizzle and returning showers near evening, but then easing into night.
Cloud on the hills?
Varied over hills
Covering higher slopes frequently, more persistently in western areas, ragged patches to lower slopes during and after rain; tending to lift higher afternoon with some breaks.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Rare brief sun, may break through in west for a time afternoon. Visibility occasionally good below cloud, but reduced in rain, at times poor.
How Cold? (at 750m)
7 or 8C, may rise a degree, then tending to drop into night. Feeling below freezing in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 5th June 2026
Last updated
Tue 2nd Jun 26 at
3:39PM
How windy? (On the summits)
Westerly 20-25mph, to 30mph high tops early hours. A slight southwesterly shift, easing slightly, as low as 15mph later.
Effect of the wind on you?
Ease of walking affected early, buffeting on tops affecting balance and feeling chilly; effects easing, to fairly small in places.
How Wet?
Some patchy rain
Patchy rain here and there, a few broader areas of rain may drift by, but totals will be generally small and several dry windows are probable.
Cloud on the hills?
Likely clearing the hills
Patchy cloud from 500-600m in the morning, some risk more extensive just at dawn, but a lifting and breaking trend with time, summits likely clear by afternoon.
Chance of cloud free summits?
Rising to 90%
Sunshine and air clarity?
A patchwork of sunshine. Good visibility.
How Cold? (at 750m)
4 or 5C at dawn rising to 8C, little drop into night. Feeling like -3C strongest early wind.
Freezing Level
Above the summits.
Planning Outlook
An unsettled spell this week with low pressure over the north Atlantic and west-southwesterly winds dominating. Periods of rain mixed with showery days widely - the most constant rain over western mountains with low cloud often shrouding the hills; bases will typically lift somewhat afternoon. Wind speed will vary, but up to gale-force for periods over the hills this week. Temperatures near average, cooler at times. A brief brighter window Friday afternoon, then unsettled again over the weekend, though detail is currently uncertain. Next week is probably unsettled as well, at least in the north, but higher pressure south of the UK may bring drier and brighter periods to Wales and south Pennines. Scotland remains often blustery and wet, and perhaps chilly, risk briefly freezing on highest tops.