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.
Tuesday'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.
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.
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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.
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.
Viewing Forecast For
Brecon Beacons
Tuesday 17th March 2026
Last updated
Mon 16th Mar 26 at
3:15PM
Summary for all mountain areas
Widely windy, severe gales in Scotland. Rain in the western Scottish highlands edges into central highlands with time; early drizzle over many high slopes, lingering in Scotland, Lakeland, and Snowdonia. Sun breaking out afternoon over Wales and the Pennines with milder temperatures, though a chill in wind.
Headline for Brecon Beacons
Blustery, particularly early; early fog tending to clear, best east
How windy? (On the summits)
Southerly 25 to 35mph, strongest Cambrian range; more widely 35mph early in the day, and possibly up to 40mph west of Brecon to Preseli.
Effect of the wind on you?
Walking strenuous in the morning, particularly in the west where balance may be challenged for a time. An easing trend with time, though staying very blustery in the west.
How Wet?
Early light drizzle
Early in the day, some light drizzle drifting over the higher summits, may linger until midday in the far west, but soon entirely dry.
Cloud on the hills?
Early blanket fog probably clearing most areas, lingering far west
Cloud covering the hills widely from dawn, but may well mostly or completely break up later morning or middle of day, best breaks east and north. Preseli to western Brecon Beacons see the lowest early cloud, to lower slopes, breaks here too but banks often returning to high terrain.
Chance of cloud free summits?
Rising to 70% by afternoon
Sunshine and air clarity?
Overcast and dull early, sun breaking out and becoming widespread eastern areas with very good visibility although a haze. More often cloudy west but sunny moments here too.
How Cold? (at 750m)
5C, rising to 6 or 7C, mildest east of Brecon. Temperature stays elevated into night and may even slightly rise. Feeling like -5C in direct wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Wednesday 18th March 2026
Last updated
Mon 16th Mar 26 at
3:15PM
How windy? (On the summits)
South-southeasterly 10-20mph, some gustiness, including to lower slopes, at times up to 25mph.
Effect of the wind on you?
Fairly small, but inconvenient gusts occasionally impact comfort.
How Wet?
No precipitation expected
Cloud on the hills?
Little expected
Some patchy fog on sheltered low slopes and valleys in the morning, lifting soon after sunrise and dissipating for clear hills.
Chance of cloud free summits?
Sunshine and air clarity?
Mostly sunny. Very good visibility.
How Cold? (at 750m)
7C from dawn (to 3C in valleys), lifting to 11C, staying elevated into night on upper slopes.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 19th March 2026
Last updated
Mon 16th Mar 26 at
3:15PM
How windy? (On the summits)
East-southeasterly 10-15mph; may at times approach a gusty 20mph, particularly early in the day.
Effect of the wind on you?
Some inconvenient gusts early in the day but otherwise small effects.
How Wet?
No precipitation expected
Cloud on the hills?
Early valley fog dissipates for clear hills
Patches of fog in sheltered valleys in the morning, most common in east and mid-Wales. Fog begins to lift upslope after sunrise, soon dissipating for cloud-free hills.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Extensive sunshine. Good visibility but hazy.
How Cold? (at 750m)
9 to 11C, mildest in the far west.
Freezing Level
Above the summits.
Planning Outlook
Pressure begins to rise on Wednesday, bringing fairly widely settled conditions across the country. Some cloud and spotty light rain lingers in north England/south Scotland for a few days, elsewhere becoming mostly sunny; valley fog in many lowland areas early, lifting and dissipating after sunrise for clear hills. Generally milder temperatures and light wind but the occasional stronger gust. East Scotland stays cooler for a time, some overnight frosts possible under clear-sky nights. Over the weekend, first indications of a cool easterly wind building, perhaps some patchy rain here and there. Into next week, detail is uncertain; low pressure may occasionally unsettle the weather, brining cooler, wetter, and windier periods.