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
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Clear
Excellent or superb visibility, no navigation issues.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Clear
Excellent or superb visibility, no navigation issues.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Viewing Forecast For
Brecon Beacons
Saturday 30th May 2026
Last updated
Fri 29th May 26 at
3:52PM
Summary for all mountain areas
Early patchy rain west Scotland, east hills dry and clear of cloud. Afternoon brings more substantial rain and cloud to west Scotland, spreading east with time; becoming blustery west too. Weak sun and clear hills England and Wales, mild-to-warm, notable breezes later for Eryri NP and Lakeland.
Headline for Brecon Beacons
Sunny and warm, thin high cloud; wind and some rain overnight
How windy? (On the summits)
Southwesterly 10mph or less until at least early afternoon. A westerly trend as afternoon goes and strengthening, finishing near 15-20mph highest tops by dusk.
Effect of the wind on you?
Small.
How Wet?
Rain unlikely during daytime
Likely a dry day, a small chance of light spots of rain approaching Preseli hills around or after dusk, this spreading east overnight.
Cloud on the hills?
Hills clear
Local patches or fragments of cloud on far western slopes possible in the morning, but these soon fading for cloud-free hills. Only as dusk falls does the risk of cloud returning to highest western tops return.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Extensive sunshine, sometimes weakened by thin high cloud. Very good visibility.
How Cold? (at 750m)
10C, rising to 12C in the west, up to 14C Black Mountains.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 31st May 2026
Last updated
Fri 29th May 26 at
3:52PM
How windy? (On the summits)
Westerly 15-25mph, sometimes gusting 30mph over high summits.
Effect of the wind on you?
Beginning to affect ease of walking, more strenuous conditions at times over high summits with a chilly feeling.
How Wet?
Light showers, later substantially dry
Scattered showers drifting from the west, mostly light in nature, and probably easing to only isolated spots or entirely dry later.
Cloud on the hills?
Extensive early, lifting above the summits
A sheet of cloud above 400-500m in the morning, lowest bases to the south. Soon lifting after sunrise, northern slopes east of Brecon soonest to clear, and the summits probably clear by early afternoon.
Chance of cloud free summits?
Rising to 90%
Sunshine and air clarity?
Patchy sunshine. Very good visibility.
How Cold? (at 750m)
9 or 10C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 1st June 2026
Last updated
Fri 29th May 26 at
3:52PM
How windy? (On the summits)
Southwesterly 20-30mph, gusty over the high summits, at times to 35mph. Some risk of deteriorating.
Effect of the wind on you?
Walking impeded in exposure, buffeting gusts briefly affecting stability with a notable wind chill.
How Wet?
Constant rain sets in
Patchy rain from before dawn sets in through the morning, nearly constant from late morning well into the day with some heavy falls probable.
Cloud on the hills?
Extensive
A veil of cloud shrouds the hills from at least 500m up in the morning, a few odd breaks north, but soon widespread. A lifting trend, through any breaks above 700m unlikely, and bases always lower south slopes.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Overcast and dull. Visibility very poor in fog and rain.
How Cold? (at 750m)
9 or 10C, rising a degree, perhaps to 12C Black Mountains. Feeling like 2C in direct wind.
Freezing Level
Above the summits.
Planning Outlook
Changeable southwesterlies prevail as the weekend transitions into next week. Sunday sees showers for west hill groups, more widely and sometimes heavy in Scotland. Monday brings more widespread rain and wind into England and Wales, showers continue in Scotland. An unsettled theme is expected during the first ten days of June. Frontal systems from the Atlantic bring periods of rain, wind, and low cloud. Wind speeds will vary, but reaching gale force on mountains for periods, England and Wales looking particularly vulnerable. A few brighter windows, but these brief and often interrupted by afternoon showers with a risk of local thunder. Sometimes chilly in Scotland when the wind turns northwesterly though staying above freezing to summits.