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
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.
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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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.
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
Sunday 31st May 2026
Last updated
Sat 30th May 26 at
4:10PM
Summary for all mountain areas
Showers in Scotland, most frequent west where hill cloud will linger; clearer east, cloud caps around showers. Early showers and hill cloud England and Wales, cloud lifts to just passing caps Scafell and Yr Wyddfa, sun bursts breaking out and showers largely fade. Moderate breeze, occasional stronger gusts high tops.
Headline for Brecon Beacons
Light showers and low cloud mostly clear; breezy over tops
How windy? (On the summits)
Westerly 20-25mph, occasionally gusting 30mph over high summits, particularly early. A few moments of lighter speeds too.
Effect of the wind on you?
Fairly small in places, ease of walking becoming affected on the top, some light buffeting in strongest gusts affecting balance.
How Wet?
Few light showers, afternoon mostly dry
Spotty showers drifting from the west, mostly light in nature, and likely just local spots in the afternoon with most hills largely dry.
Cloud on the hills?
Extensive early, lifting above the summits
A sheet of cloud above 400-500m in the morning, the cloud more broken near the Black Mountains. Soon lifting after sunrise, northern slopes east of Brecon soonest to clear, all cloud likely above summits by afternoon.
Chance of cloud free summits?
Rising to 90%
Sunshine and air clarity?
Patchy sunshine, greatest chance of extended sunny breaks later in the day. Very good visibility.
How Cold? (at 750m)
9 or 10C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 1st June 2026
Last updated
Sat 30th May 26 at
4:10PM
How windy? (On the summits)
Southwesterly 15-20mph dawn, deteriorating, approaching 30-35mph afternoon.
Effect of the wind on you?
Walking becomes impeded in exposure, later strenuous for several hours; stability may be affected in exposure.
How Wet?
Persistent rain
Raining most of the day, some broader swathes of rain with some heavy falls, and a lingering drizzle likely on the high tops even between rainy spells.
Cloud on the hills?
Extensive
Cloud shrouds many hills from at least 500-600m up in the morning, a few odd breaks north, but trending widespread as midday approaches. A lifting trend, through any breaks above 700m unlikely, and bases always lower south, often lowest slopes.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Overcast and dull. Visibility very poor in fog and rain.
How Cold? (at 750m)
9 or 10C, rising a degree, perhaps to 12C Black Mountains. Feeling like 2C in strongest wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 2nd June 2026
Last updated
Sat 30th May 26 at
4:10PM
How windy? (On the summits)
Westerly 20 to 25mph, at times 30mph higher tops.
Effect of the wind on you?
Noticeable breeze, in places affecting comfortable walking on higher terrain.
How Wet?
Heavy locally thundery showers
Showery rain on and off from dawn in west, heavier bursts passing eastwards into middle of day, some continue afternoon, risk isolated thunder. Drier near Cambrian coast afternoon, some light showers later.
Cloud on the hills?
Varied, then clearing tops
Cloud banks most frequent over western tops in the morning, lifting toward then above many tops away from showers. Some patches likely return to western tops into evening.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Glimpses of sun, may become sunnier near west coast for a time afternoon. Visibility very good, reduced in showers.
How Cold? (at 750m)
9 to 11C. Feeling close to 0C if exposed to wind.
Freezing Level
Above the summits.
Planning Outlook
An unsettled week ahead with low pressure facilitating periods of rain, showers, and a strengthening wind, as well as cooler temperatures. Rain spreads across most areas from the southwest on Monday, followed by showers on Tuesday, these showers perhaps turning into thunderstorms in central and east areas. The only settled window this week overnight into Wednesday, then more rain soon arrives from the west through Wednesday morning, spreading widely and with it gales likely over most hills as well except the far north of Scotland. Thursday and Friday remain showery and windy, nearly persistent rain and extensive low cloud northwest England and west Scotland, a few breaks in the east but showers always most widespread afternoon and even smaller hills seeing cloud over summits for periods.