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.
Sunday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
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.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
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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.
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.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Brecon Beacons
Sunday 10th May 2026
Last updated
Sat 9th May 26 at
4:00PM
Summary for all mountain areas
Increasingly windy across the Highlands, rain and some sleet or snow on high tops moving in from the northwest, becoming persistent. By late in the day, snow falling in northern areas to lowering elevations. Chilly NE'ly wind England & Wales tends to ease, a largely fine day, early light rain east Wales.
Headline for Brecon Beacons
Brisk gusty wind. Early damp cloud lifts to give some sun.
How windy? (On the summits)
Northeasterly 25 to 35mph and notably gusty particularly morning; speeds tend to lessen a little during afternoon, though rising again and shifting northerly onward into night.
Effect of the wind on you?
Blustery with considerable wind chill. Gusty spots affect ease of walking and balance on ridges.
How Wet?
Early dampness soon fades
Brief spots of drizzle or light rain early in the day, mainly eastern hills, soon fading to leave a dry day.
Cloud on the hills?
Early cloud lifting and clearing
Cloud banks drifting over slopes above 600m, briefly lower in eastern areas early morning, tending to lift, but may take a few hours to fully clear. Increasingly breaking up into afternoon to leave hills clear.
Chance of cloud free summits?
50% early in day, rising above 90% by afternoon.
Sunshine and air clarity?
Largely cloudy in morning, some occasional sun toward west Wales, some sun breaks through more widely afternoon. Visibility very good, though may start misty around eastern hills.
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
Sat 9th May 26 at
4:00PM
How windy? (On the summits)
North-northwesterly 15-25mph, strongest toward west, 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%, rising above 90% afternoon.
Sunshine and air clarity?
Patchy sunshine. Visibility excellent.
How Cold? (at 750m)
3C early morning, rising to 6C afternoon. Feeling near -5C in the wind in morning.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 12th May 2026
Last updated
Sat 9th May 26 at
4:00PM
How windy? (On the summits)
Westerly 25 to 35mph, squally gusts around showers.
Effect of the wind on you?
Very blustery across the hills, at times uncomfortable walking on exposed higher terrain. Considerable wind chill.
How Wet?
Showery rain mostly west
A band of showery rain moving southeast during the day, may be frequent rain over an hour or more in west Wales. Later scattered showers.
Cloud on the hills?
Occasionally capping tops
Some cloud banks drifting over higher slopes, mostly west Wales where rain develops for a time. Then rising and breaking again.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Occasional sun. Visibility often very good, but reduced in rain or showers.
How Cold? (at 750m)
4 to 6C. Feeling like -5C directly in the wind on high tops.
Freezing Level
Above the summits.
Planning Outlook
Notably chilly across the hills for this time of year during the week ahead as air from the north-northwest prevails. Frequently near or below freezing over Scottish Munros, and at times dropping to freezing on high tops in England and Wales. Wind speed will vary, but increasing at times to gale force on hills, giving significant chill factor. Broadly showery, heavy bursts with hail and thunder in places, also often falling as snow on higher mountains, at least in Scotland, intermittently elsewhere. Some more persistent precipitation especially northwest Scotland. Also some drier windows - varying locally day-to-day - away from showers cloud will lift above hills and visibility will be very good.