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.
Monday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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
Monday 12th October 2026
Last updated
Sun 11th Oct 26 at
4:00PM
Summary for all mountain areas
Extensive low cloud blankets the mountains, poor visibility widely; generally damp with drizzle and some steadier rain. Best chance for drier conditions and local higher cloud breaks to the north of major hill groups. Wind speeds will vary, but often blustery around tops. Fairly mild southerly air.
Headline for Brecon Beacons
Murky and damp most hills all day; varied wind.
How windy? (On the summits)
Southerly 20 to 30mph, slightly lower speeds for a time into middle of day, then through afternoon tending to increase, to 35-40mph toward sunset, gusts toward 50mph into night.
Effect of the wind on you?
Fairly small on some slopes, but blustery around higher exposed terrain, particularly later. Tending to deteriorate into the 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 in the morning. Patchier smaller amounts toward eastern mid-Wales, sometimes easing off afternoon. Rain and drizzle likely returns steadier evening into night.
Cloud on the hills?
Extensive, odd breaks afternoon
Shrouding most hills all day, from lower elevations much of Brecon Beacons and western Cambrians, rarely above 400-500m inland. Some breaks intermittently more widely during afternoon, but cloud banks often cover south-facing slopes.
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, rising slightly warmer into night. Increasingly humid. Feeling like 3C if in stronger wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 13th October 2026
Last updated
Sun 11th Oct 26 at
4:00PM
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.
Viewing Forecast For
Brecon Beacons
Wednesday 14th October 2026
Last updated
Sun 11th Oct 26 at
4:00PM
How windy? (On the summits)
Southwesterly, in range 25 to 40mph, notable increase with height; strongest in afternoon, in places 50mph.
Effect of the wind on you?
Increasingly strenuous walking conditions on higher terrain, gusts knocking you off balance, later more challenging.
How Wet?
Little or no rain
Odd spots of drizzly rain in the wind drift onto western hills, but much of south and eastern Wales substantially dry.
Cloud on the hills?
Varied, mostly south and west
Banks of cloud clinging to hills above 600-700m most frequently southern slopes and in west Wales, locally lower in morning. May break up to be patchier on tops, possibly clearer overall east mid-Wales.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Glimpses of weak sun mostly eastern areas. Hazy, visibility better further east.
How Cold? (at 750m)
6C rising to 9C. Feeling like -3C directly in the wind.
Freezing Level
Above the summits.
Planning Outlook
A very unsettled Atlantic pattern this week. Southwesterly gales strengthen to become severe on the mountains into Wednesday, moderating into Thursday. Frequently raining particularly over western hills, some bands of more extensive heavier rain passing eastwards through midweek. Milder early in the week, then cooler later, with showery conditions by Thursday into Friday on westerly winds - Scottish high summits may drop back close to freezing with some snow falling on higher tops. Indications start to favour higher pressure building into next weekend and early next week for a period of quieter weather and scope for inversion conditions on high terrain.