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.
Friday'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.
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.
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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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.
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.
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
Friday 29th May 2026
Last updated
Thu 28th May 26 at
3:54PM
Summary for all mountain areas
Very windy Scottish Highlands, afternoon gales, strongest north. Extensive low cloud and rain, most west, some breaks east but little sun. Morning cloud over England and Wales, clearing Wales and S Pennines for afternoon sun. Cloud slow to clear west slopes of Lakeland and N Pennines, spotty rain and blustery here.
Headline for Brecon Beacons
Chance spotty drizzle and early gusts, improving to sunshine
How windy? (On the summits)
West-southwesterly 15 to 25mph, an easing trend later in the day. Notable gusts over the high tops, notably early when gusts will reach downslope too.
Effect of the wind on you?
Fairly small, but breezy over higher exposed terrain with notable gusts (including downslope early in the day); feeling quite cool on tops.
How Wet?
Rain unlikely
Chance of a brief drizzly shower west coastal Cambrian hills in the morning, as well as small change some spotty rain east Brecon Beacons, these chances soon fading for a dry day.
Cloud on the hills?
Tending to clear, summits likely clear afternoon
A fairly extensive layer of cloud on central and western tops and southern slopes at dawn; well broken on northern slopes but some scattered banks at various heights. Bases lift from dawn and cloud largely dissipates by noon for cloud-free summits.
Chance of cloud free summits?
Soon rising to 90%
Sunshine and air clarity?
Mostly cloudy at dawn, some patchy sun through high cloud breaking out, then more extensively sunny through afternoon. Very good visibility.
How Cold? (at 750m)
10C rising to 13 or 14C, mildest Black Mountains. Wind chill feeling like 3 to 5C on tops.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 30th May 2026
Last updated
Thu 28th May 26 at
3:54PM
How windy? (On the summits)
Southwesterly 10-15mph dawn, shifting westerly and strengthening, 20-30mph by evening.
Effect of the wind on you?
Small at first, but increasingly noticeable and with time affecting ease of walking on exposed high terrain.
How Wet?
Little or no rain
Much of the day may well remain dry. Chance of patchy rain encroaching onto western hills in afternoon and evening.
Cloud on the hills?
Little if any, lowering western tops later
Local patches or fragments mainly in west in morning, but most hills clear much of day. Later in day, cloud lowering over hills mainly in west, may fill in to below 600m.
Chance of cloud free summits?
90% dropping to 50% into evening
Sunshine and air clarity?
Patchwork of sun gives way to building high cloud from west; cloudier later. Visibility very good.
How Cold? (at 750m)
10C, rising to 12C east hills; little rise west.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 31st May 2026
Last updated
Thu 28th May 26 at
3:54PM
How windy? (On the summits)
Westerly 20-30mph.
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
Scattered showers drifting from the west, mostly light in nature, and probably easing to only isolated spots later in the day.
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. Feeling just above freezing in strongest wind.
Freezing Level
Above the summits.
Planning Outlook
Nearer average temperatures for all into the weekend onward as changeable southwesterlies prevail. England and Wales remain fairly sunny through Saturday, only beginning to deteriorate afternoon. Sunday will see showers for all, most in the west, and more frequent with heavy bursts in Scotland. A generally unsettled theme is expected during the first ten days of June with lower pressure dominating. Frontal systems come in from the Atlantic - rain, drizzle and low cloud most common on western coastal mountains, but showery days are likely more widely at times, possibly rain more widely further south later in week. Wind speeds will vary, but reaching gale force on mountains for periods. Occasional cooler spells when the wind turns northwesterly.