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.
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.
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 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
Tuesday 21st April 2026
Last updated
Mon 20th Apr 26 at
4:00PM
Summary for all mountain areas
Brisk easterly winds for all areas will give considerable chill factor across the mountains; very gusty toward the west. A little patchy rain at first, otherwise a generally dry day. Cloud banks over the hill early in the day, particularly in the east, but increasingly breaking up to leave clear hills and sunshine.
Headline for Brecon Beacons
Windy, gale-force gusts, increasing. Cloud breaking, sunshine.
How windy? (On the summits)
Easterly 25 to 35mph, very gusty in places around higher tops, through passes and locally downslope to west, local 40mph. Tending to strengthen, by evening into night to generally 40-50mph.
Effect of the wind on you?
Considerable wind chill in exposure, blustery spots affect balance and make walking uncomfortable. Deteriorating further late in day onward to be more widely difficult over the mountains.
How Wet?
Precipitation unlikely
Small chance of patchy light showers, mostly east Wales early morning.
Cloud on the hills?
Varied then lifting, clearing
Cloud banks above 600-700m, mostly eastern areas around the Black Mountains in morning, more broken in west. Tending to lift higher and largely break up.
Chance of cloud free summits?
70% rising above 90%
Sunshine and air clarity?
Fairly cloudy, some brighter sunnier moments mostly west Wales. Visibility very good.
How Cold? (at 750m)
2C rising to 5C afternoon. Directly in the wind, feeling like -6 to -8C, or colder by evening.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 22nd April 2026
Last updated
Mon 20th Apr 26 at
4:00PM
How windy? (On the summits)
Easterly 30 to 40mph, but local gusty spots may approach 50mph around highest tops in the morning, likely lessening.
Effect of the wind on you?
Very blustery, strenuous walking on tops, buffeting gusts challenging balance not just higher slopes. Marked wind chill.
How Wet?
No precipitation expected
Cloud on the hills?
Early cloud clears
Patchy cloud banks drifting over some hills early morning, mostly eastern areas, some patches may roll westwards for a time, but all likely to disperse.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sunshine most or all day west Wales, and developing increasingly in east. Visibility good, but slight haze.
How Cold? (at 750m)
3C rising to 7C. Feeling like -5 to -10C directly in the wind, coldest in the morning.
Freezing Level
Above the summits. Possible pockets of frost sheltered spots both higher and lower slopes at dawn.
Viewing Forecast For
Brecon Beacons
Thursday 23rd April 2026
Last updated
Mon 20th Apr 26 at
4:00PM
How windy? (On the summits)
Easterly 25 to 30mph, gusty 35mph in places around higher tops and locally downslope toward the west.
Effect of the wind on you?
Blustery over the hills, making walking strenuous in exposure, some buffeting gusts, feeling chilly despite mild air.
How Wet?
No precipitation expected
Cloud on the hills?
Little or none
Possible patchy cloud some eastern slopes early morning, otherwise the mountains clear.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Largely sunny, possibly thin high cloud. Visibility good, some slight haze.
How Cold? (at 750m)
6 to 8C, warmest west, small variation. Feeling like 0C if directly in the wind.
Freezing Level
Frost in sheltered valleys at dawn. Otherwise above freezing to the summits.
Planning Outlook
Staying dry through the remainder of this week and likely into the weekend as high pressure centred to the north stays nearby. Strong and gusty easterly winds tending to lessen later in the week to leave mostly light winds onward into the weekend. Temperatures generally a few degrees above freezing on higher tops, though often some frost in valleys and sheltered higher terrain at dawn. Western areas generally sunniest and warmest, some low cloud banks over eastern hills in the mornings, early fog patches some valleys. Commonly dry weather likely into next week too, chance of local showers occasionally.