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
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.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Click an icon for more information or click here for a key to all icons.
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.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Viewing Forecast For
Brecon Beacons
Monday 16th November 2026
Last updated
Sun 15th Nov 26 at
3:02PM
Summary for all mountain areas
Cold northerly winds in the morning bring snow and hail showers to northern Scotland and locally north Wales, otherwise generally clear and sunny. Winds drop light all areas through middle of day, then strengthen southeasterly later, gales into night; rain and hill snow moves in from southwest.
Headline for Brecon Beacons
Sun and clear hills, high cloud; then rain/snow evening-night.
How windy? (On the summits)
Northwesterly 20-25mph at dawn, easing 10mph or less for a few hours. Later afternoon onward, rising southeasterly 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; summit 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, rain moving in from southwest, snow over high tops for a few hours into evening, but soon turning all to heavy rain evening, lasting several hours into night, then showery.
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 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
Sun 15th Nov 26 at
3:02PM
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.
Viewing Forecast For
Brecon Beacons
Wednesday 18th November 2026
Last updated
Sun 15th Nov 26 at
3:02PM
How windy? (On the summits)
Southwesterly 25 to 35mph, possibly 40mph.
Effect of the wind on you?
Strenuous walking conditions, risk more arduous on high terrain with considerable wind chill.
How Wet?
Frequent or persistent bursts of rain
Frequent showery rain west and southern areas, some more constant falls, heavy bursts with possible hail, chance of thunder. Patchier east-mid Wales.
Cloud on the hills?
Extensive higher areas
Covering higher slopes most of the day above 700m, patches to lower elevations at times south and west of Brecon. Breaks higher up mostly eastern areas.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Little or no sun. Visibility good where dry, but often poor in rain south and west.
How Cold? (at 750m)
4C. Feeling like -5 to -8C in the wind.
Freezing Level
Above the summits.
Planning Outlook
Scottish mountain tops stay below freezing throughout this week ahead, snowfalls on Tuesday most prolonged east and southern areas. Thereafter, the Highlands see mostly little precipitation this week, but snow and hail showers will feed in from the north at times, locally giving frequent snow to the far north and the north Cairngorms. Frost also common in the glens. For England & Wales, snow on Monday night turns to rain into Tuesday as the freezing level rises above the summits, then dropping back to freezing above 800m midweek with a mix of rain and upland snow. A mixed outlook into the weekend and beyond, some quieter windows, but further areas of rain and hill snow are likely, perhaps milder air into late November.