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
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
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.
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.
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 25th September 2026
Last updated
Thu 24th Sep 26 at
4:28PM
Summary for all mountain areas
Windy in Scotland, showers west, only scattered eastward where often sunny; wind lessens for a time afternoon. Patchy rain England and Wales, tending to break up in north England later. Rain and cloud linger in Wales and south Pennines but rainfall totals small; mild-to-warm, little wind in Wales.
Headline for Brecon Beacons
Patchy rain and varied hill cloud most of the day
How windy? (On the summits)
Westerly or variable 10-15mph or less, but at dawn 20mph and rising a little again toward evening.
Effect of the wind on you?
Mostly small.
How Wet?
Some light rain
A few bands of rain will drift east across the hills through the day, generally light and patchy in nature. Some risk of some steadier falls, any heavier moments brief.
Cloud on the hills?
Tops largely covered, variably lower
Cloud base will vary through the day, most terrain above 800m often shrouded, a few odd breaks above summits away from rain, but some broader banks returning lower as well, perhaps extensively above 600-700m during rain. Late in the day, may more substantially break up.
Chance of cloud free summits?
30%
Sunshine and air clarity?
A few windows of weak patchy sun, but cloudier moments as well. Good visibility out of cloud and rain, more varied on high terrain.
How Cold? (at 750m)
12C well into the day, but beginning to cool from the west, to finish around 9 or 10C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 26th September 2026
Last updated
Thu 24th Sep 26 at
4:28PM
How windy? (On the summits)
West turning southwesterly 10 to 20mph, typically strongest west Wales.
Effect of the wind on you?
Fairly small.
How Wet?
Little or no rain
Substantially dry, an odd brief light shower mainly west Wales.
Cloud on the hills?
Little if any
Patchy mist some valleys at first, some brief fragments may drift upslope, but soon all cloud above hills.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sunshine and well broken cloud. Visibility very good, slight haze toward west coast.
How Cold? (at 750m)
8C rising to 11C afternoon.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 27th September 2026
Last updated
Thu 24th Sep 26 at
4:28PM
How windy? (On the summits)
A gusty southerly 25-40mph, a sudden westerly shift and lessening later, 20-25mph.
Effect of the wind on you?
Strenuous moments in exposure, strongest gusts affecting balance with notable wind chill despite mild air.
How Wet?
Heavy rain for a time afternoon
Mostly dry early, some light rain beginning to approach from the south and west. Rain becomes frequent, setting in for several hours, a swathe of heavy rain briefly. Breaking up later.
Cloud on the hills?
Increasingly covering high terrain
Little to start, then ragged patches lowering onto western tops, increasingly spreading east, lowering more widely afternoon to cover most high terrain, bases locally to 400-500m southern slopes during heaviest rain.
Chance of cloud free summits?
80% lowering to 30%
Sunshine and air clarity?
Sunny start, patchy cloud building, overcast for much of the afternoon. Very good visibility, deteriorating with cloud/rain.
How Cold? (at 750m)
9C rising to 13C, notably cooling into night. Feeling like 1 to 3C in strongest wind.
Freezing Level
Above the summits.
Planning Outlook
South to southwesterly winds prevail onward into the weekend and next week. Saturday will be bright for many, windy in Scotland with some showers in the west. Mild-to-warm temperatures, but a chilly feeling north in wind. A band of rain sweeps eastward more broadly on Sunday; rain could be very heavy for a few afternoon hours. A window of higher pressure is indicated for Monday with warmer, brighter conditions for many, but northwest Scotland starts breezy with cloud and some light rain. Into mid-next week, risk of a more widespread gale, or severe gale over higher mountains. Detail of timing is uncertain, but several bands of rain punctuated by showers and bright spells will likely cross most mountain areas. Unseasonably warm temperatures. The weather stays mixed into early October.