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.
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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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.
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
Wednesday 17th June 2026
Last updated
Tue 16th Jun 26 at
4:30PM
Summary for all mountain areas
Southwesterly winds will be fresh to strong over the mountains. Rain widely fairly persistent in the morning, more showery for Scotland into afternoon, fading for northern England and Wales, but patchy rain lingers in south Wales. Cloud shrouding most high terrain, lowest in west, some breaks afternoon.
Headline for Brecon Beacons
Strong breeze. Rain fading to drizzle, low cloud lingers
How windy? (On the summits)
Southwesterly 25 to 30mph, up to 35mph for a few hours from dawn; gusty around higher tops and on some eastern downslopes.
Effect of the wind on you?
Blustery over the hills, strenuous walking in exposure on higher slopes, particularly early morning, starting to affect balance in places on tops.
How Wet?
Rain may persist, then fading
A mix of rain, drizzle and some showery moments; the most frequent rain typically west and southwest of Brecon, persistently wet over several hours. Tending to fade through afternoon, but staying damp in south.
Cloud on the hills?
Extensive, may improve afternoon
Blanket cloud across the hills around rain, from lower slopes upward in areas south and west of Brecon at least in morning, but likely to persistent all day over tops. Lifting to 600m in east, some breaks form higher in afternoon
Chance of cloud free summits?
20%
Sunshine and air clarity?
Largely cloudy, some sun may break through later mainly east. Hazy much of day southwest areas, misty widely around rain, then visibility improves during afternoon, to be very good in east.
How Cold? (at 750m)
10 or 11C, little change all day. Feeling near to freezing directly in wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Thursday 18th June 2026
Last updated
Tue 16th Jun 26 at
4:30PM
How windy? (On the summits)
South-southwesterly 25 to 35mph, typically strongest western Beacons to Cambrians, but widely gusty, in places over 40mph.
Effect of the wind on you?
Strenuous walking conditions over the hills, gusts affecting balance on some exposed high tops. Feeling cool in exposure.
How Wet?
Drizzly rain much of day west
Generally damp west, some more persistent steady rain possible Preseli hills to western Cambrians. Drizzly over much of Brecon Beacons, smaller amounts eastward, locally more often dry.
Cloud on the hills?
Extensive, lowest southwest
Shrouding the hills throughout the day, from lower slopes up in south and west, particularly near coasts. Rarely above 500-600m inland, local breaks east Wales.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Largely cloudy, dull. Misty to lower levels toward southwest, local better visibility below cloud east.
How Cold? (at 750m)
11C rising to 13C, locally warmer eastern areas afternoon. Feeling nearer 0C directly in wind on tops.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 19th June 2026
Last updated
Tue 16th Jun 26 at
4:30PM
How windy? (On the summits)
South-southwesterly, 35 to 45mph all day, peak gusts may vary, risk 60mph for periods highest tops.
Effect of the wind on you?
Strenuous to arduous walking conditions, gusts starting to affect balance in exposure. Marked wind chill.
How Wet?
Risk thundery bursts developing
Early patchy rain possible in west, or spots from high cloud inland/east, but several hours likely largely dry. Increasing risk with time of heavy bursts of rain forming, possibly torrential. Risk of thunder.
Cloud on the hills?
Varied, most persistent west
May cover many hills from dawn, to lower slopes especially southwestern hills and coasts, here likely to persist. Some rise of base inland, breaks best eastward. Filling in with ragged low patches in rain.
Chance of cloud free summits?
20% west, 60% east.
Sunshine and air clarity?
Some sun east, weak through high cloud, more overcast at times, especially west. Visibility good east, hazier west/southwest; reducing widely around rain.
How Cold? (at 750m)
Humid 13 to 15C, tending to drop from west during day, by evening to 9C. Feeling nearer freezing in wind all day.
Freezing Level
Above the summits.
Planning Outlook
Humid southwesterly winds persist late this week, reaching gale-force over hills - affecting northern England and Wales on Thursday, then Scotland by Friday. Periods of rain, some heavy falls with possible thundery bursts mixed in. Low cloud most persistent in the west. Less windy, but still breezy into Saturday in Scotland, feeling less humid for most, but western Scottish hills at least stay cloud capped and with showery rain. Sunday is more uncertain, but a risk of some further rain pushing in from the southwest - warmer again over England and Wales. A mixed west-southwesterly pattern into next week, rain and low cloud most common in western Scotland, drier with higher cloud eastwards and more often dry for England & Wales. Near average temperatures, may rise late week in south.