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.
Tuesday'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
Tuesday 16th June 2026
Last updated
Mon 15th Jun 26 at
4:28PM
Summary for all mountain areas
Damp southerly air will cloak many hills in low cloud, plus drizzle or a little rain. Highest cloud bases and best chance for breaks further northward. Moderate winds, more blustery near west coasts, strengthening for Wales where frequent rain arriving.
Headline for Brecon Beacons
Breezy, increasingly windy. Low cloud, rain mainly afternoon.
How windy? (On the summits)
West-southwesterly 15-20mph from dawn into morning, strengthening to south-southwesterly 30mph midday onward, some stronger gusts later.
Effect of the wind on you?
Fairly small at dawn, becoming more blustery, affecting comfortable walking on high terrain. Gusts may affect balance on tops and ridges. Marked wind chill despite mild air.
How Wet?
Patchy rain develops from west
Patchy rain drifts from the southwest during morning, but eastern areas largely dry possibly until midday. Rain increasingly frequent afternoon, some heavier pulses of rain occasionally. More constant heavier rain likely sets in evening into first part of night.
Cloud on the hills?
Fairly extensive, some early breaks
High terrain shrouded from dawn, likely 500-600m upward; some morning periods of higher bases mainly east, any breaks to summits brief. Then more extensively shrouded afternoon from 400m up, higher bases east of Brecon.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Mostly overcast, rare glimpses of weak sun early in day mainly east. Very good visibility below cloud, deteriorating in rain.
How Cold? (at 750m)
11 to 13C, mildest east. Feeling like +1 to 3C in strongest wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 17th June 2026
Last updated
Mon 15th Jun 26 at
4:28PM
How windy? (On the summits)
Southwesterly 25 to 30mph, 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, 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, risk persistently wet over several hours. Tending to fade through afternoon.
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
Mon 15th Jun 26 at
4:28PM
How windy? (On the summits)
South-southwesterly 25 to 35mph, typically strongest western Beacons to Cambrians, but widely gusty, risk rising over 40mph.
Effect of the wind on you?
Expect strenuous walking conditions over the hills, gusts may start to affect balance on some exposed high tops.
How Wet?
Rain and drizzle much of day west
Generally damp west, risk some more persistent steady rain particularly western Cambrians. Drizzly over much of Brecon Beacons, smaller amounts eastward.
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.
Planning Outlook
Humid southwesterly winds continue to prevail later this week, likely reaching gale-force over hills for a period Thursday into Friday, soonest in Wales. Periods of rain, some heavy, mixed with drizzle and low cloud most persistent in the west. More uncertainty of day-to-day detail in the extended range, but in general a variable southwesterly pattern continues; rain and low cloud common in western Scotland into next week. Some warmer days, drier more often England and Wales.