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.
Wednesday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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
Wednesday 11th March 2026
Last updated
Tue 10th Mar 26 at
4:00PM
Summary for all mountain areas
Cold strong westerly winds, gales over Scottish mountains and more widely early in day, significant chill factor over mountains. Showery snow and hail most frequent W & NW Highlands, more scattered elsewhere. Cloud base varying, occasional sun.
Headline for Brecon Beacons
Windy, gale-force at first. Local brief showers.
How windy? (On the summits)
Westerly up to 40mph post dawn. Will drop to typically 25 or on higher tops 30mph by midday. Increasing again into night, later reaching 60mph, stronger gusts.
Effect of the wind on you?
Expect considerable wind chill and walking to be arduous at first. By late morning, the wind still likely to impede ease of walking where exposed. Deteriorating again to gales onward into night.
How Wet?
Brief showers - some hail
Occasional showers, sometimes of hail.
Cloud on the hills?
Frequently clearing
In precipitation, cloud temporarily forming from 400 to 500m upward. Otherwise, by midday nearly all cloud above the summits.
Chance of cloud free summits?
80% by midday
Sunshine and air clarity?
Patchwork of sunshine, most sun east Wales. Visibility mostly very good or excellent.
How Cold? (at 750m)
1C rising slowly toward 3C, then slightly higher into night. Will feel like -8C directly in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 12th March 2026
Last updated
Tue 10th Mar 26 at
4:00PM
How windy? (On the summits)
Southwesterly 45 to 60mph.
Effect of the wind on you?
Difficult conditions over the mountains, any mobility challenging in exposure on tops. Significant wind chill.
How Wet?
Rain may set in heavier later
Rain on and off at least, more persistent at times over west and southern areas, patchier eastwards. With time, prolonged heavier rain developing, after dark snow high tops.
Cloud on the hills?
Extensive
Covering many hills most or all day above 400-500m, at times lower on southwestern slopes. Some higher bases toward east around Black Mountains.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Overcast and dull most of day, local brighter moments east and mid-Wales. Rather hazy, poorer visibility in rain.
How Cold? (at 750m)
3C, rising to 6 or 7C, the dropping towards or below freezing overnight. Wind chill feeling like -7 to -10C.
Freezing Level
Above the summits during daylight, lowering overnight to 600m.
Viewing Forecast For
Brecon Beacons
Friday 13th March 2026
Last updated
Tue 10th Mar 26 at
4:00PM
How windy? (On the summits)
West to southwesterly 30 to 40mph, likely strongest in the morning, squally gusts around showers.
Effect of the wind on you?
Strenuous walking conditions over exposed higher terrain, buffeting at times and considerable wind chill.
How Wet?
Hail and snow showers, risk thunder
Showers with hail sometimes frequent on more western hills; also snow falling to 300-400m in morning, then mostly confined above 600m with time. Risk isolated lightning.
Cloud on the hills?
Varying, mostly higher and western tops
Cloud base frequently changing: at times shafts of cloud to 600m or lower near Cardigan Bay, and likely to come and go above 700-800m inland, but some breaks to the higher tops, more often eastwards.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Bursts of sun west, or more frequent bright sun east Wales. Visibility often very good eastern areas, but further west at times very poor in showers.
How Cold? (at 750m)
-2C rising to 0C afternoon. Feeling like -10 to -13C directly in the wind.
Freezing Level
500-600m at first, rising toward 800m by early afternoon.
Planning Outlook
Generally unsettled onward into the upcoming weekend and start of next week as low pressure systems pass near and north of Britain - strong west or southwesterly winds prevail, often gale-force to at times storm-force over the mountains. Some fluctuation of temperature and freezing level, but mostly below freezing over Scottish mountains, at times snow falling to lower elevations. Colder for all by the end of this week with widely lowering freezing level by Friday. Frequent precipitation most western mountains, accumulations of snow across the mountains, most substantial in western Scotland from Glencoe northwards. Quieter weather patterns indicated beyond mid-month as higher pressure builds.