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.
Snow flurries
Occasional light snow flurries, sleet or rain lower elevations. Amounts little more than nuisance value, but locally more persistent and reducing visibility for periods.
Clear
Excellent or superb visibility, no navigation issues.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Bright sunshine
Beware of sunburn from bright spring sunshine, despite feeling cool in any breeze on higher terrain.
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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.
Snow flurries
Occasional light snow flurries, sleet or rain lower elevations. Amounts little more than nuisance value, but locally more persistent and reducing visibility for periods.
Clear
Excellent or superb visibility, no navigation issues.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Bright sunshine
Beware of sunburn from bright spring sunshine, despite feeling cool in any breeze on higher terrain.
Viewing Forecast For
Brecon Beacons
Saturday 14th March 2026
Last updated
Fri 13th Mar 26 at
12:32PM
Summary for all mountain areas
Very much less windy, especially England and Wales in afternoon. But still cold day with hail and snow showers, and particularly Wales away from western hills spells of sun. The snow will penetrate to lower slopes in Scotland but be confined above 600m elsewhere.
Headline for Brecon Beacons
Much less windy, particularly afternoon. A few snow showers.
How windy? (On the summits)
Westerly, 25mph after dawn to 15 locally 20mph from around.
Effect of the wind on you?
Fairly small
How Wet?
Showers.
Occasional showers of hail and above 600m, snow: mostly morning. Very few showers afternoon.
Cloud on the hills?
Little if any by afternoon as cloud base rises.
Varied cloud base: sometimes below 450m near precipitation but by late morning nearly all cloud above the hill tops.
Chance of cloud free summits?
90% by midday
Sunshine and air clarity?
Glimpses of sun, mainly more eastern areas, at first; slowly improving to a patchwork of, or extensive sun. Hazy, and very poor visibility in snow morning; mostly very good or excellent visibility afternoon.
How Cold? (at 750m)
1C; varying by a degree or two as showers come and go. Will feel as cold as minus 12C directly in the wind.
Freezing Level
Close to highest summits.
Viewing Forecast For
Brecon Beacons
Sunday 15th March 2026
Last updated
Fri 13th Mar 26 at
12:32PM
How windy? (On the summits)
Southwest veering west typically between 40mph, perhaps occasionally 50 or 55mph on highest tops.
Effect of the wind on you?
Continued difficult walking and wind chill significant on exposed higher areas. Expect balance to be tricky.
How Wet?
Rain; later clearing to showers
Morning: Extensive rain. Middle of day or into afternoon: Clearing from west, but the rain finishing as sleet highest tops. Later: Occasional showers, sleet or snow higher tops
Cloud on the hills?
Hills covered morning; then cloud base rising markedly
Morning: Blanket of fog across the hills, breaks to 700m west Wales. Middle of day: Beginning to improve. Into afternoon: Varying cloud base, between occasionally 500m near precipitation and otherwise 750 to 900m.
Chance of cloud free summits?
Less than 10% morning; later 70%
Sunshine and air clarity?
Dull and misty morning. Then improving to patchy sun (sunniest east Wales) and mostly very good visibility.
How Cold? (at 750m)
5C dropping to around 1C. Will feel as cold as minus 8C where exposed to the wind.
Freezing Level
Above the summits morning, then dropping to, or perhaps just below 900m.
Viewing Forecast For
Brecon Beacons
Monday 16th March 2026
Last updated
Fri 13th Mar 26 at
12:32PM
How windy? (On the summits)
Westerly; easing from 30-40mph.
Effect of the wind on you?
Considerable wind chill and arduous walking. Balance may well be tricky.
How Wet?
Rain & drizzle frequently.
Possibly isolated showers only for a few hours before rain and drizzle becomes widespread, most persistent west Wales, but total rainfall small east Wales, north from Black Mountains.
Cloud on the hills?
Blanket of fog most or all day
Fog across most hills much of the day, but for a few hours (mostly morning) in east Wales, higher summits may clear. Otherwise, fog soon at or below 300-400m west Wales and south of the A40 (through Brecon) and by afternoon lowering to 450 to 600m elsewhere.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Becoming dull and misty from west - possibly very good visibility east Wales preceding the dull weather.
How Cold? (at 750m)
1C, rising marginally morning; then to 5C. Will feel as cold as minus 12C due to wind chill.
Freezing Level
Near highest tops at first, then above the summits.
Planning Outlook
Frequent upland gales until Tuesday - generally strongest Scottish Highlands. Precipitation will continue on most mountains, focussed in the west - lengthy periods of showery weather and occasional swathes of widespread rain. Freeze thaw cycles will continue: on the Scottish Highlands, thaw periods brief and snow widely accumulating. Further south, lying snow mostly confined to higher summits. There is now high likelihood of an abrupt transition mid-week as pressure builds north of Britain: extensively fine; cloud often clearing, particularly western Britain and temperature levels more varied - fairly warm some afternoons but frost widely at night.