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.
Today's Forecast
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
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.
Bright sunshine
Beware of sunburn from bright spring sunshine, despite feeling cool in the breeze on higher terrain.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
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.
Bright sunshine
Beware of sunburn from bright spring sunshine, despite feeling cool in the breeze on higher terrain.
Viewing Forecast For
Brecon Beacons
Friday 9th May 2025
Last updated
Thu 8th May 25 at
3:29PM
Summary for all mountain areas
In Scotland, thin mist in the glens and isolated cloud caps over highest tops at dawn will soon clear for cloud free hills. Isolated low morning fog in eastern valleys of England and Wales as well, also soon clearing. A patchwork of sun for most as high fair-weather cloud builds, feeling warm in direct sun. Mostly light winds.
Headline for Brecon Beacons
Dry with patchy high cloud; feeling warm in the sun
How windy? (On the summits)
Easterly 10 to 15mph, occasionally 20mph southernmost areas. Many places may see 20mph breezes around dusk.
Effect of the wind on you?
Mostly small
How Wet?
No rain
Cloud on the hills?
Isolated dawn fog clearing for cloud-free mountains
Local banks of low valley fog around easternmost slopes. Fog may rise slightly though soon dissipate, clearing mountains for the remainder of the day.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Sunshine with patchy fair-weather cloud building through the afternoon. Visibility excellent.
How Cold? (at 750m)
5 or 6C, rising to 11C by afternoon.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Saturday 10th May 2025
Last updated
Thu 8th May 25 at
3:29PM
How windy? (On the summits)
East to southeasterly 10 to 20mph, tending to increase during day.
Effect of the wind on you?
Fairly small
How Wet?
No rain
Cloud on the hills?
Not expected
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Strong sunshine, a patchwork of cloud building as the day goes. Some haze at dawn, visibility becoming excellent.
How Cold? (at 750m)
7C from dawn, rising to 13C afternoon.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Sunday 11th May 2025
Last updated
Thu 8th May 25 at
3:29PM
How windy? (On the summits)
East to southeasterly 20-30mph, some increase around dusk.
Effect of the wind on you?
Walking becoming impeded in higher winds, some stability challenges on exposed ridges.
How Wet?
Showery outbreaks, locally heavy
Bursts of showery rain probable, locally heavy. May become more frequent in afternoon.
Cloud on the hills?
Little if any
Hills mostly clear, an occasional cloud may cap highest tops during an outbreak of rain.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sun through high cloud early, gradually becoming more shrouded by high cloud. Visibility often poor in rain.
How Cold? (at 750m)
11 to 13C
Freezing Level
Above the summits
Planning Outlook
Low pressure south and west of the British Isles will facilitate bursts of rain into Wales though the weekend into next week. High pressure to the east keeps most eastern areas settled during this time. The continental wind track will keep most cloud above the summits, with eastern areas often sunny. Generally settled conditions prevail next week as high pressure reestablishes just north of the British Isles, though odd bursts of rain come and go in Wales. A mix of cloud and sun with light winds, generally easterly though variable. Slight frosts at dawn in sheltered spots, mostly warm by day. Very dry ground conditions, beware high risk of fire.