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.
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.
Chilly
Air temperature near or just above freezing 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.
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.
Chilly
Air temperature near or just above freezing on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Brecon Beacons
Thursday 27th March 2025
Last updated
Wed 26th Mar 25 at
2:33PM
Summary for all mountain areas
Widespread upland severe gales and rain across Scotland - although breaks in the rain some eastern and far northern areas (sometimes snow higher tops far north). South into England and Wales, less windy, particularly morning and away from hills open to the sea to the southwest, very little if any rain.
Headline for Brecon Beacons
Increasingly windy developing; chance drizzle.
How windy? (On the summits)
Southwesterly 20 to late in day in west and southwest Wales 35mph.
Effect of the wind on you?
Starting to affect comfortable walking on exposed higher terrain.
How Wet?
A little light rain
A few patches of drizzle, mostly or only SW Wales. Rain unlikely east Wales.
Cloud on the hills?
Extensive west Wales
Blanket low cloud much of the day avoid 300 to 450m SW Wales and a little higher Cambrian range. Highest bases east Wales, where most cloud 600m or above.
Chance of cloud free summits?
20% SW Wales to 70% east
Sunshine and air clarity?
Sunshine only rarely SW Wales, and perhaps Cambrian range. Increasingly sunny eastwards toward eastern Beacons and Black Mountains. Very good or excellent visibility, but dropping in rain.
How Cold? (at 750m)
5C. Feeling below freezing point on higher tops afternoon.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Friday 28th March 2025
Last updated
Wed 26th Mar 25 at
2:33PM
How windy? (On the summits)
Westerly 30mph; squally near showers.
Effect of the wind on you?
Considerable wind chill. Sudden buffeting, especially near precipitation.
How Wet?
Hail showers, chance isolated lightning
Hail and snow showers, mainly afternoon, low risk isolated thunder. Precipitation mostly rain below 600m.
Cloud on the hills?
Intermittently covering higher tops.
Cloud base changing in and out of showers: mostly above 700m, clearing most tops periodically (especially east Wales), but patches below 500m in showers.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Patchy sun, particularly east Wales. Slight haze.
How Cold? (at 750m)
1C. Will feel as cold as minus 8C directly in the wind.
Freezing Level
Just above highest summits
Viewing Forecast For
Brecon Beacons
Saturday 29th March 2025
Last updated
Wed 26th Mar 25 at
2:33PM
How windy? (On the summits)
Westerly 10 to 15mph, perhaps 20mph west Wales by dusk.
Effect of the wind on you?
Small.
How Wet?
Little or no rain
Substantially completely dry. Risk of a little drizzle west Wales.
Cloud on the hills?
Probably extensive on highest tops
Cloud base typically 650 to 900m by late morning. May lower onto higher slopes SW and W Wales late in day.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Patchwork of sunshine - though may turn cloudy (or more cloudy) from west through afternoon. Very good or excellent visibility.
How Cold? (at 750m)
1 rising to 4C.
Freezing Level
Above the summits.
Planning Outlook
Frequently windy with intermittent rain (or widely snow and hail showers on Friday) until early next week. Pressure is then likely to build markedly over and east of Britain, bringing the return of dry and sometimes warm and sunny weather for much of next week.