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.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate 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.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Brecon Beacons
Sunday 15th November 2026
Last updated
Sat 14th Nov 26 at
4:00PM
Summary for all mountain areas
Rain and increasingly snow over Scottish mountains as colder air moves in. Drier and higher cloud bases toward southwest Highlands. Rain affects northern England and Wales with some persistent and locally heavier falls, becoming snow on hills into evening. Wind speed and direction will vary in all areas.
Headline for Brecon Beacons
Frequent or persistent rain, low cloud; windy later.
How windy? (On the summits)
South-southwesterly 15-20mph in morning, occasional variable lower speeds middle of day. Switching west then northwesterly later afternoon onward, rapid rise to 30mph, or 40mph western tops from dusk.
Effect of the wind on you?
Mostly small until later afternoon, then worsening quickly and sudden buffeting gusts develop, challenging walking soon after dark and significant wind chill.
How Wet?
Often raining, heavier at times; sleet tops
Rain on and off, some steadier and heavier falls likely for periods. Some sleet mixed in over higher tops at times. A possible drier window, but further rain may then set in again from the west later. Some snow on tops into evening.
Cloud on the hills?
Extensive
Blanket cloud shrouding the mountains most likely all day, fairly persistent to mid-elevations in south and western areas, at times lower slopes; some variable breaks toward mid and east Wales.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Overcast and dull or murky. Mostly poor visibility across the hills.
How Cold? (at 750m)
3 to 5C, little change until evening, then dropping after dark toward 0C. Beyond dusk, feeling near -10C as the wind increases.
Freezing Level
Above the summits until after dark, then during evening and into first part of night dropping to 800-900m.
Viewing Forecast For
Brecon Beacons
Monday 16th November 2026
Last updated
Sat 14th Nov 26 at
4:00PM
How windy? (On the summits)
NW'ly 20mph at dawn, soon 10mph or less for a few hours. Into afternoon, rising SE'ly 20-30mph, rapidly 50-60mph after dark.
Effect of the wind on you?
Small until well into afternoon, but later starting to worsen with marked wind chill. Deteriorating significantly into evening.
How Wet?
Rare showers fade; snow then rain later
Local showers mostly west Cambrians at first, brief snow flurries, but fading. Largely dry most areas much of day. Late afternoon, risk of rain moving in from south, snow over hills for a few hours, turning all to heavy rain evening.
Cloud on the hills?
Little if any
Brief patches on higher slopes early in day soon all clearing. Late in day and particularly after dark, as precipitation develops, cloud increasingly enveloping higher terrain.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sunshine fairly weak due to high cloud, which likely thickens further later to become more overcast. Visibility excellent, reducing late in day.
How Cold? (at 750m)
-1C, later +1C, then +7C into night. As wind increases later, feeling like -10C, or colder after sunset.
Freezing Level
700m, lifting a little during afternoon, varying into evening, then rising above the tops later evening-night.
Viewing Forecast For
Brecon Beacons
Tuesday 17th November 2026
Last updated
Sat 14th Nov 26 at
4:00PM
How windy? (On the summits)
Southwesterly 25 to 40mph, some uncertainty of highest speed, chance of more sustained gales occurring.
Effect of the wind on you?
Blustery over high terrain affecting comfortable walking and balance with considerable wind chill. May worsen.
How Wet?
Frequent or persistent heavy rain
Often raining much of south and west Wales, heavy bursts sometimes with hail mixed in, chance of isolated thunder. Pulses of rain spreading northeastward, but patchier east-mid Wales.
Cloud on the hills?
Frequently covering tops
Cloud base varying, but often shrouding higher and western hills above 700m, at times patches to 500m southwest areas. Some breaks higher up toward east.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Little if any sun. Visibility at times good where dry, but often poor in rain in south/west.
How Cold? (at 750m)
5C, little change all day. Feeling like -5C or possibly near -10C if exposed to stronger wind.
Freezing Level
Above the summits.
Planning Outlook
Cold with higher terrain frequently or almost permanently frozen most or all next week particularly in Scotland. Meanwhile Wales and northern England will see one or two incursions of much warmer air together with areas of persistent rain and intermittent hill snow. Less precipitation generally northward across Scotland, but marked exceptions: here too, where the frequently northerly wind rises over mountains (with the sea directly to the north), accumulations of snow may well be considerable.