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.
Saturday'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.
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.
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.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
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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.
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.
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.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
Viewing Forecast For
Brecon Beacons
Saturday 15th November 2025
Last updated
Fri 14th Nov 25 at
4:20PM
Summary for all mountain areas
High fog banks in the east Scottish Highlands, dry with sunshine west; windy early but easing. A thin layer of snow blankets the summits. Early gales in England and north Wales ease but remaining blustery. Rain here too, also easing though lingering south Pennines. Flood risk in Wales and south Pennines.
Headline for Brecon Beacons
Extensive cloud with drizzle on eastern tops; a mild feel
How windy? (On the summits)
Easterly 15-25mph. Strong gusts will blow over the tops with a risk of very strong winds early. An easing trending though unlikely to drop below 15mph.
Effect of the wind on you?
Comfortable walking will be affected by gusty winds in exposure, but conditions will trend towards fairly small, best chance on southernmost slopes.
How Wet?
Rain soon fades into drizzle
Overnight rain begins breaking around dawn into patchy light rain, continuing to fade into largely just drizzle on high tops in fog, particularly the Black Mountains. Considerable flooding expected.
Cloud on the hills?
Extensive, some higher bases west
Likely to blanket most hills all day, lowest bases in eastern areas, above 400-500m. Higher breaks toward the Pembrokeshire hills, perhaps to near tops later in the day.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Overcast, some brighter skies may develop toward west coast later. Fog limits visibility, though very good if below cloud (best west).
How Cold? (at 750m)
6 or 7C - little or no change with added height. Feeling near freezing at dawn in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 16th November 2025
Last updated
Fri 14th Nov 25 at
4:20PM
How windy? (On the summits)
East to northeasterly 20-25mph, to gusty 35mph in places around high tops and some passes, gusty downslope to west.
Effect of the wind on you?
Blustery, some buffeting gusts in places, not just on highest terrain; considerable wind chill in exposure.
How Wet?
Light showery rain
Light showery rain mostly over eastern hills in the morning, some blown further west in the wind. Tending to break.
Cloud on the hills?
Fairly extensive, breaks forming
Banks of cloud drifting over slopes above 600 to 800m through the morning, lowest and most extensive in areas toward east. Tending to lift afternoon, breaks mainly west, but may come and go on many tops.
Chance of cloud free summits?
20% rising to 50%
Sunshine and air clarity?
Mostly cloudy, some sun may break through with time, mainly in west. Visibility tending to improve to be very good.
How Cold? (at 750m)
3 or 4C. Feeling like -5C in exposure to wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 17th November 2025
Last updated
Fri 14th Nov 25 at
4:20PM
How windy? (On the summits)
Northerly 25-35mph. Likely easing, possibly a northwesterly shift as well though detail is uncertain.
Effect of the wind on you?
Walking strenuous with wind chill in the morning, trending towards lesser impacts.
How Wet?
No rain expected
Cloud on the hills?
None expected
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Widely sunny with excellent visibility.
How Cold? (at 750m)
0C. Feeling like -10C in strongest morning wind.
Freezing Level
At or just above the summits at dawn, lowering to 700-800m. Frosts likely at lower elevations at dawn.
Planning Outlook
Rain eases in Wales and the southern Pennines though flood risk may linger for another day. Winds shift widely northerly as the weekend turns into next week, drawing cold air widely across the country; staying below freezing over higher mountains most likely throughout the next week to 10 days. Snow flurries move in on this northerly wind on slopes exposed to coasts; snow most frequent toward north of the Highlands with some locally more substantial accumulations over higher terrain; some accumulating upland snow possible more widely during Tuesday as a front drifts southward. Elsewhere, sunny breaks will occur at times frequent and prolonged. Winds often strong, at times gale force; significant wind chills likely.