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.
Thursday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunny but cold
Bright winter sunshine most of the day with the mountains generally free of cloud. Snow cover on higher terrain.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunny but cold
Bright winter sunshine most of the day with the mountains generally free of cloud. Snow cover on higher terrain.
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
Thursday 20th November 2025
Last updated
Wed 19th Nov 25 at
3:00PM
Summary for all mountain areas
Staying cold as northerly winds continue, speeds starting to lessen gradually Scotland. Snow/hail showers in N Scotland, slowly fading. Showers also Cheviots, locally N/W Wales. Mostly sunny elsewhere. All terrain frozen; extensive snow cover over mountains, most substantial NW Highlands & Cairngorms.
Headline for Brecon Beacons
Bitter wind. Mostly sunny, snow showers Pembrokeshire.
How windy? (On the summits)
Northerly 30 to 40mph, speed fluctuating during day, strongest sustained speeds likely afternoon.
Effect of the wind on you?
Often challenging walking conditions on higher exposed terrain; significant wind chill.
How Wet?
Most of region dry
Local snow and hail showers confined to far west coast in Pembrokeshire. Otherwise dry all day.
Cloud on the hills?
Mostly very little
Rare fragments around some higher tops, but the hills largely clear.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Generally sunny. Visibility excellent.
How Cold? (at 750m)
-2C. Wind chill feeling like -15C in stronger speeds.
Freezing Level
500-600m, but frost into many valleys in morning, partial thawing lower sunlit slopes.
Viewing Forecast For
Brecon Beacons
Friday 21st November 2025
Last updated
Wed 19th Nov 25 at
3:00PM
How windy? (On the summits)
North-northwest 15-20mph at dawn, but likely soon less. Later turning W-SW'ly, increasing evening-night to 30-35mph.
Effect of the wind on you?
Mostly small during daytime, then likely to deteriorate from dusk onward.
How Wet?
Precipitation unlikely until night
Most likely all daytime dry. Into night, risk rain developing from west, snow on higher terrain for a time.
Cloud on the hills?
Likely none
Most hills likely clear all day. During afternoon, some patches may form on slopes near west coast.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sun through high cloud, tending to thicken from west, may become obscured later. Visibility excellent, possible mist or haze in some valleys.
How Cold? (at 750m)
-1C, slight rise to around 0C afternoon, then +2C into night.
Freezing Level
Much inland terrain frozen in morning, all day out of sunlight. General rise toward 700m; then into night above the tops.
Viewing Forecast For
Brecon Beacons
Saturday 22nd November 2025
Last updated
Wed 19th Nov 25 at
3:00PM
How windy? (On the summits)
Southwesterly 40mph in morning, risk 50mph around dawn, tending to ease toward 25mph; more variable later.
Effect of the wind on you?
Strenuous walking with frequent buffeting and considerable wind chill, tending to gradually improve.
How Wet?
Rain fairly persistent, some heavy
Rain arriving before dawn from the west likely to continue into the daytime, risk wet much of the day, occasional heavier rain. Possibly easing for a time, but later renewed pulses of rain may set in again.
Cloud on the hills?
Extensive, some rising east
Shrouding the hills widely, banks to some lower elevations in morning and if rain persists on southern slopes. Best of any breaks toward 600m likely east mid-Wales.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Largely cloudy. Misty and dull especially south, poor visibility due to rain.
How Cold? (at 750m)
4 or 5C. Feeling like -7C in exposure to strongest wind.
Freezing Level
Above the summits.
Planning Outlook
Winter conditions over the mountains - snow coverage to lower slopes in Scotland, snow and ice cover varied for England & Wales, but much terrain frozen; hard frost into inland valleys and glens into Friday. A front moving into Scotland from the west on Friday brings gales and snow, turning to rain lower down - arriving in England & Wales Friday evening-night. Less cold into the weekend, but higher mountains stay near or just below freezing, particularly Scotland; showers or locally more frequent upland snow over several days forward. Later next week looks at least briefly milder.