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.
Sunday's Forecast
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Viewing Forecast For
Brecon Beacons
Sunday 23rd August 2026
Last updated
Sat 22nd Aug 26 at
4:00PM
Summary for all mountain areas
A fine day for most places with light winds. Patchy cloud around some hill slopes early in the day will lift to leave many summits clear, but cloud banks are likely to persist on west coastal tops in Scotland, a little drizzle here in the morning, breezier too in the far northwest.
Headline for Brecon Beacons
Dry, hills clear most of day.
How windy? (On the summits)
Variable often little wind, rarely 10mph, some upslope breezes forming.
Effect of the wind on you?
Negligible.
How Wet?
No rain expected
Cloud on the hills?
Little or none
Some early mist on low slopes, brief fragments may drift upslope, but cloud generally forming above the summits.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Sunshine best in the morning, scattered fair weather cloud building; sunniest near coasts later afternoon. Excellent visibility.
How Cold? (at 750m)
9C rising to 15C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 24th August 2026
Last updated
Sat 22nd Aug 26 at
4:00PM
How windy? (On the summits)
East-southeasterly 15-25mph, a general trend towards higher speeds, further rising overnight.
Effect of the wind on you?
Fairly small, but quite blustery on summits at times.
How Wet?
No rain expected
Cloud on the hills?
Any cloud unlikely
A few rare mist patches just at dawn, soon dissipating.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Sunny to start, high cloud building and may well thicken to weaken or shroud the sun. Good visibility, though a morning haze.
How Cold? (at 750m)
11C rising to 15 or 16C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 25th August 2026
Last updated
Sat 22nd Aug 26 at
4:00PM
How windy? (On the summits)
Easterly 20 to 25mph.
Effect of the wind on you?
Fairly small but feeling breezy over higher terrain, in places more noticeably gusty.
How Wet?
Possibly a shower
Risk of scattered bursts of rain moving up from the south during the day, but many places may well remain dry.
Cloud on the hills?
Little or none
Patchy cloud banks on some eastern slopes for a few hours from dawn will all clear. If rain occurs, odd patches may form on some slopes.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sun and thin high cloud, may thicken to cover the sky for periods. Visibility good, but slight haze particularly eastern areas.
How Cold? (at 750m)
11C rising to 16C.
Freezing Level
Above the summits.
Planning Outlook
A fine start to the week with high pressure nearby, but easterly breezes will tend to strengthe. Most places dry through Monday and Tuesday, but generally deteriorating from the south into midweek as low pressure moves in from the south, patchy rain will increasingly spread northward with some local stronger wind. Broadly unsettled as next weekend approaches with bands of heavy rain forming mixed with showery bursts at times, but fairly warm and somewhat humid. Wind speed and direction likely to vary considerably day-to-day.