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.
Friday's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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
Friday 1st May 2026
Last updated
Thu 30th Apr 26 at
3:09PM
Summary for all mountain areas
As pressure falls slowly, so extensive high level cloud and bursts of rain (perhaps thundery in places later in day) will spread east - although the precise locations of the showery rain remains uncertain. Patches of low cloud, mainly near Irish Sea coasts will accompany the rain.
Headline for Brecon Beacons
Bursts of rain. Fairly light wind.
How windy? (On the summits)
Southerly, 10 to 15mph. Will increase toward 20mph evening.
Effect of the wind on you?
Small.
How Wet?
Risk bursts of rain
Frequently or completely dry, although one or two pulses of rain - ranging from a few spots to possibly an hour of locally heavy rain. Likely to clear from west middle of day or into afternoon.
Cloud on the hills?
Forming during and for a while after rain; most widely SW Wales
During and for perhaps a couple of hours after rain, cloud may form below 500m, or in SW Wales 200m. Otherwise - at first and widely again into the afternoon - the hills cloud free.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Sunshine, becoming weak through a veil of high cloud, which will probably extend eastward. Visibility good or very good, but some haze.
How Cold? (at 750m)
10C, little change or even dropping a degree or so through day hills close to west coast, but up to 15C afternoon easternmost hills.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 2nd May 2026
Last updated
Thu 30th Apr 26 at
3:09PM
How windy? (On the summits)
Generally southerly; 10mph.
Effect of the wind on you?
Negligible
How Wet?
Risk occasional rain
Largely or perhaps completely dry. However, risk increasingly wet due to showery rain later in day (low confidence in this).
Cloud on the hills?
Summits mostly free of cloud.
From dawn, cloud may be below 300m on slopes nil SW Wales, whilst elsewhere the hills extensively cloud free. Patches will form on higher areas in rain - although may also shroud lowest slopes SW Wales.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Sunshine intermittently. Mostly very good visibility after a misty start.
How Cold? (at 750m)
7 to 12C, warmest east Wales in afternoon.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Sunday 3rd May 2026
Last updated
Thu 30th Apr 26 at
3:09PM
How windy? (On the summits)
Low confidence in forecast due to proximity of low centre. Mostly southwesterly, 20 to possibly 30mph.
Effect of the wind on you?
Expect wind to impede ease of walking.
How Wet?
Heavy showers after early rain
Fairly wet underfoot after very wet night. The rain probably clearing at least briefly, perhaps soon after dawn. But heavy showers may follow, with small risk thunder.
Cloud on the hills?
Coming and going from higher slopes
Fog intermittently shrouding the hills, mainly near rain, when extensive above 600m and fragments on lower slopes.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Patchy sunshine. Visibility poor in rain, but mostly very good.
How Cold? (at 750m)
8C: may feel as cold freezing point directly in the wind.
Freezing Level
Above the summits.
Planning Outlook
Less settled from the weekend onwards. Rain will be more frequent although apart from on Saturday night and Sunday (when a band of rain will move north about as far as central Scotland - the detail presently very uncertain) total rainfall will remain fairly small. Temperature levels will drop markedly, particularly on the Scottish Highlands, where overnight and mornings higher slopes will be below freezing point on Scottish Highlands - with hail and snow flurries. Overnight frosts may extend as far south as Wales again.