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.
Monday'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.
Dry and sunny
Extensive strong warm sunshine. The mountains free of cloud once any early mist patches disperse.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 4 to 8C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate 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.
Dry and sunny
Extensive strong warm sunshine. The mountains free of cloud once any early mist patches disperse.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 4 to 8C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Brecon Beacons
Monday 2nd June 2025
Last updated
Sun 1st Jun 25 at
3:55PM
Summary for all mountain areas
A transient ridge of high pressure will bring a weather window with sunshine and patchy cloud mostly above tops, but banks will persist on upper slopes hills west Highlands with a few drizzly showers. Marked chill over the tops. Southwesterly winds strengthening into evening, heavy rain and southerly gales into western Scotland.
Headline for Brecon Beacons
Mostly dry and sunny. Cloud and wind increasing. Heavy rain into night.
How windy? (On the summits)
Westerly 10mph, becoming southwesterly 15 to 25mph afternoon. 30 to 40mph through the evening and overnight period.
Effect of the wind on you?
Small or mostly small for much of the day.
How Wet?
No rain expected until late on
No rain expected until a band of heavy rain moves through into the night.
Cloud on the hills?
Little or none
Any patchy cloud in the morning will soon evaporate.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sunshine and broken cloud, becoming weaker as high cloud develops in the afternoon, later becoming overcast in the evening. Excellent visibility.
How Cold? (at 750m)
5C lifting to 8C. Feeling around freezing in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 3rd June 2025
Last updated
Sun 1st Jun 25 at
3:55PM
How windy? (On the summits)
Southwesterly, 25mph, increasing up to 40mph for periods.
Effect of the wind on you?
Be prepared for very blustery, if not at times arduous, conditions with considerable wind chill and buffeting.
How Wet?
Scattered drizzly showers.
A scattering of drizzly showers moving inland from the west coast. Focused across western coastal hills.
Cloud on the hills?
Steady rise to tops, eastern hills clearing.
Cloud bases will rise through day to highest tops or above, becoming widely clear east Wales. Bases will linger around 700-800m western most hills.
Chance of cloud free summits?
40% in the west, 80% in the east.
Sunshine and air clarity?
A patchwork of sun coming through post front, most widely eastern parts. Visibility mostly very good away from showers.
How Cold? (at 750m)
8C Feeling more like closer to freezing in the strongest winds.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 4th June 2025
Last updated
Sun 1st Jun 25 at
3:55PM
How windy? (On the summits)
Southwesterly 15 to 25mph
Effect of the wind on you?
Be prepared for a considerable chill in the wind across higher slopes with gustiest conditions in and around showers.
How Wet?
Scattered showers
A scattering of showers will move through the area.
Cloud on the hills?
Mostly lifting above the tops
Patches will come and go over western tops as showers move in, but generally well elevated cloud bases will hills often or mostly clear.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Occasional sunshine, perhaps fairly widespread eastern hills for a few hours. Visibility good, but slight haze, and lowering briefly in showers.
How Cold? (at 750m)
5C lifting to 8C Feeling closer to freezing in the wind.
Freezing Level
Above the summits
Planning Outlook
Atlantic low pressure systems will continue to dominate and bring a sustained period of westerly winds for the next 7 to 10 days. High rainfall western mountains, with periods of strong to gale force westerly winds bringing significant chill factor. Best of the drier and brighter weather for eastern ranges. Freezing level at times down to 1000-1300m in Scotland, bringing occasional snow to upper slopes.