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.
Today's Forecast
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Heavy rain
Near-constant heavy rain, sometimes torrential over the mountains, very wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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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Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Heavy rain
Near-constant heavy rain, sometimes torrential over the mountains, very wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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 19th October 2025
Last updated
Sat 18th Oct 25 at
4:00PM
Summary for all mountain areas
Gale-force south to southeasterlies across the mountains. Extensively wet with blanket low cloud. The heaviest rain across Wales and southwest Scotland, pushing further across the southern Highlands with time. Driest conditions for northern Scotland early in day; briefly drier Pennines mid-late morning.
Headline for Brecon Beacons
Upland gales. Heavy rain soon continuous morning into afternoon.
How windy? (On the summits)
South to southeasterly, 35 to 50mph, likely strongest in morning, very gusty around high tops; later in day 25mph.
Effect of the wind on you?
Challenging conditions over the mountains, frequent buffeting gusts affecting balance. Marked wind chill. Improving with time.
How Wet?
Sustained heavy rain, fading afternoon
Rain soon widespread from dawn, at first may be patchier eastern mid-Wales. Several hours of continuous heavy rain setting in from the southwest. During afternoon, tending to ease and break up, some showers follow.
Cloud on the hills?
Extensive, lowest south
Shrouding the mountains likely all day, to many mid-slopes upward, or lower slopes on south-facing areas. Base tending to lift with ragged patches rising later in the day.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Overcast, murky in rain. Visibility improving later afternoon, chance of some sun briefly breaking through.
How Cold? (at 750m)
9 or 10C, small change with height on hills. Feeling like -3 to -5C directly in the wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Monday 20th October 2025
Last updated
Sat 18th Oct 25 at
4:00PM
How windy? (On the summits)
Speed and direction change quickly, gusty 25-35mph; S-SE'ly morning, W'ly later; brief lulls. Small risk gales far south.
Effect of the wind on you?
Beware of variable conditions, at times more challenging and affecting ease of walking in exposure.
How Wet?
Often raining, some heavy bursts
Periods of rain, persistently heavy at times, may break up but then some showery bursts, rain likely to remain frequent. Chance of isolated thunder.
Cloud on the hills?
Fairly extensive
Likely to cover the mountains throughout the day, cloud base may vary, at times to low slopes, rarely clear above 600-700m.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Largely cloudy, rare if any weak sun. Visibility often reduced by rain, locally at times good.
How Cold? (at 750m)
8C. Feeling near freezing in exposure to wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Tuesday 21st October 2025
Last updated
Sat 18th Oct 25 at
4:00PM
How windy? (On the summits)
Westerly 25 to 30mph, possibly 35mph at times around highest summits.
Effect of the wind on you?
Blustery, affecting comfortable walking in places on higher tops. Considerable wind chill.
How Wet?
Rain on and off
Showery rain likely to come and go, most common western Cambrians, may give frequent rain locally over an hour or more.
Cloud on the hills?
High western tops often in cloud
Often covering higher terrain above 600-800m, lowest and most frequent western areas. Breaks at times higher up further east toward the Black Mountains.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely cloudy, brief glimpses of sun mainly in east Wales. Visibility very good away from rain.
How Cold? (at 750m)
7 or 8C, little change, small variation with height in morning. Feeling below freezing in the wind.
Freezing Level
Above the summits
Planning Outlook
A mixed outlook into the new week as low pressure dominates with areas of rain and showers, which will vary locally day-to-day. Some windows of drier weather, particularly central parts of the Highlands. Wind speeds will also vary, but some lulls, but abrupt spells of upland gales possible. Risk of heavier rain spreading from Wales into northern England and southern Scotland later Wednesday into Thursday. Likely significantly colder later in the week with northerly winds, dropping below freezing on higher mountains, with snow showers especially Scottish Munros.