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.
Wednesday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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
Wednesday 2nd September 2026
Last updated
Tue 1st Sep 26 at
4:30PM
Summary for all mountain areas
Much of the Highlands sees a fine day with fairly light winds; a veil of high cloud tends to thicken, risk of some rain later. S Scotland & N England has more cloud, some rain. Heavier rain moves across Wales into Peak District, followed by showers on a strong southwesterly wind, quite humid.
Headline for Brecon Beacons
Windy, gale-force gusts. Heavy rain then showers, low cloud.
How windy? (On the summits)
South-southwesterly 30-35mph, gusty over the tops, and strengthening for a time, gusting up to 45-50mph around mid-late morning. Then southwesterly afternoon, mostly 30-35mph, rising again toward evening 40mph.
Effect of the wind on you?
Walking impeded in exposure, more strenuous moments with buffeting affecting balance; feeling chilly despite mild air.
How Wet?
Heavy rain then drizzle and showers
Several hours of morning rain, widely heavy for a time. Rain will ease into patches and become drizzle mixed with odd showery bursts; where in cloud toward west and south staying often damp.
Cloud on the hills?
Extensive
Cloud extensive from 600m upward in morning, widely to 400m and lower on south slopes during extended rain. As rain eases, bases will variability lift, some breaks mainly east mid-Wales, but lower banks remain in south & west.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Overcast and dull with poor visibility, some brighter skies into afternoon, better visibility inland where dry.
How Cold? (at 750m)
11 to 14C, trending towards the higher end of the range and staying warm into night; humid. Feeling like 3 to 6C in strongest wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 3rd September 2026
Last updated
Tue 1st Sep 26 at
4:30PM
How windy? (On the summits)
Southwesterly 20-35mph, trending towards lower speeds for a time but then a swathe of strong wind arrives late, 50-60mph.
Effect of the wind on you?
Walking impeded in exposure, feeling chilly, effecting easing somewhat but significantly deteriorating into night.
How Wet?
Some patchy rain
Some drizzle on high tops early, this fading, with patchy rain coming and going much of the day, some dry windows as well. Heavier rain arrives onward into night.
Cloud on the hills?
Fairly extensive, improving trend
Hills extensively shrouded to low slopes to start, a gradual lifting trend, mostly northern slopes and some chance of breaks towards tops for a few hours. Cloud will tend to fill in more widely later, extensive to low southern slopes.
Chance of cloud free summits?
Rising to 60% for a time.
Sunshine and air clarity?
A few bright glimpses but more often overcast. Locally good visibility where cloud lifts, more often poor to the south.
How Cold? (at 750m)
14C much of the day, later beginning to rise, approaching 16C into night. Feeling like 4 to 6C in direct wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 4th September 2026
Last updated
Tue 1st Sep 26 at
4:30PM
How windy? (On the summits)
West-southwesterly 35 to 50mph, stronger gusts to 60mph at times highest tops, particularly early in day.
Effect of the wind on you?
Arduous walking conditions, frequent buffeting knocking you off balance on exposed terrain. Considerable wind chill.
How Wet?
Early rain clears to light showers
Overnight rain likely continues to dawn or into the early morning, heavy falls for a few hours. Tending to clear southwards, but may leave a legacy of drizzle and some light showers much of day, mostly west.
Cloud on the hills?
Fairly extensive, then lifting to tops
Shrouding hills widely during early rain, may persist over hills for a few hours, but base tending to lift and breaks forming toward upper slopes or above with time. Patches may come and go on higher western tops all day.
Chance of cloud free summits?
20% rising to 60%
Sunshine and air clarity?
Cloudy start, poor visibility in rain, improving to be more often very good as the day goes on.
How Cold? (at 750m)
10C or above at dawn, dropping to 8C. Directly in wind feeling like 0 to -3C.
Freezing Level
Above the summits.
Planning Outlook
A series of weather systems moves in from the Atlantic this week and next to bring spells of rain and showers, accompanied by frequently strong to gale force mountain winds. A window of better weather is likely this Saturday for Scotland and northern England, but further rain is expected to move into Wales, which then extends north by Saturday night and Sunday, possibly widely heavy rain and a risk of more powerful upland gales developing over Scotland into Sunday. Temperatures will vary, mildest toward the south, but some cooler air moves in from the north at times bringing higher Scottish tops close to freezing point.