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
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.
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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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.
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
Sunday 11th October 2026
Last updated
Sat 10th Oct 26 at
4:30PM
Summary for all mountain areas
A fine day overall with light winds, sunshine and just patchy cloud around some mountain slopes. Isolated brief showers around coastal fringes at first will fade. Southerly winds tend to strengthen later in the day in western areas. Some patchy rain reaches southwest Wales.
Headline for Brecon Beacons
Mostly dry, a lull in wind; odd spots of rain as high cloud thickens.
How windy? (On the summits)
West-northwesterly 20mph around dawn, easing in morning 10-15mph. By midday into afternoon, turning southerly, rising from west to 20-25mph, increasing through dusk, reaching 40mph late evening into night.
Effect of the wind on you?
Mostly small until later in day, but more blustery conditions toward sunset, worsening after dark.
How Wet?
Largely dry, rain mostly after dark
Rare scattered showers early morning west Wales, fading to be largely dry. Mostly light spots of rain develop from southwest as high cloud thickens, into evening and night more persistent rain.
Cloud on the hills?
Rare patches
Some patchy cloud may drift around upper slopes in the morning, but generally all dispersing or lifting above hills.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Patchwork of cloud and sun; a veil of high cloud thickens from west with time. Visibility excellent.
How Cold? (at 750m)
5C rising to 7C afternoon, lifting further after dark to 10C or slightly higher. Feeling near to freezing if exposed to stronger breeze.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 12th October 2026
Last updated
Sat 10th Oct 26 at
4:30PM
How windy? (On the summits)
South-southwesterly 20 to 30mph, then late in day likely to increase, to 50mph most likely after dark.
Effect of the wind on you?
Fairly small, but blustery around higher exposed terrain, likely to deteriorate onward into evening-night.
How Wet?
Generally damp, some steady rain
Rain and drizzle most persistent over west and southwest-facing hills, some steady or heavier rain more widely early and late. Patchier smaller amounts toward eastern mid-Wales, sometimes easing off.
Cloud on the hills?
Extensive
Shrouding most hills all day, from lower elevations much of Brecon Beacons and western Cambrians, rarely above 400-500m inland. Perhaps an improvement afternoon.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Overcast, dull or murky. Local brighter moments east-mid Wales and during afternoon.
How Cold? (at 750m)
11 to 13C, little change day and night. Feeling like 3C if in stronger wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 13th October 2026
Last updated
Sat 10th Oct 26 at
4:30PM
How windy? (On the summits)
Southwesterly 40-50mph around dawn, easing during morning to 25mph for a few hours, but may rise again to 30-35mph.
Effect of the wind on you?
Generally blustery over the mountains, more challenging at times on exposed high terrain; increasingly marked wind chill.
How Wet?
Early rain fades, a few showers
A band of heavy rain passes eastwards over a few hours from dawn into the morning. Breaking up to be quickly dry for a brief window, but then showers follow from west for a time, these later fading.
Cloud on the hills?
Lifting after rain, patches on tops
Blanket cloud across hills from dawn into morning in rain, then a rapid clearance to just ragged patches around some slopes, and tops clearing for periods. Patches may come and go on tops in west.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Overcast and dull, then sun breaking through for a time, then cloudier again. Poor visibility in rain, suddenly very good, reducing in showers; west coast haze.
How Cold? (at 750m)
Mild 12C overnight but dropping into early morning to 8C, slightly cooler afternoon. Feeling like -3C later in stronger wind.
Freezing Level
Above the summits.
Planning Outlook
Damp and mild southwesterly air moves across the country into Monday, winds strengthen again later to widely gale-force over the hills, heavier rain sweeps eastward overnight and into early Tuesday, followed by showers and a drop of temperature. Very unsettled west-southwesterlies continue into midweek - sustained mountain gales, possibly stormy at times and spells of heavy rain for all areas. A changeable westerly theme likely continues beyond mid-month - occasional windows of drier weather, but more often windy with rain or showers coming in from the Atlantic, sometimes cold enough to fall as snow on Scottish high tops.