Brecon Beacons
Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.
Viewing Forecast For
Brecon Beacons
Thursday 22nd October 2020
Last updated
Wednesday 21st October 2020 at
2:30 PM
Summary for all mountain areas
Despite an approaching ridge of high pressure, the remnants of fronts, will mean only a slow, although sustained improvement after extensive low cloud and patches of rain from dawn - particularly so central Britain. Strong winds will ease; becoming very light in Scotland.
Headline for Brecon Beacons
Gradually improving as low cloud lifts and pockets of rain clear.
How windy? (On the summits)
Westerly, 25 to 30mph after dawn; easing to around 15-20mph by mid afternoon.
Effect of the wind on you?
Becoming small
How Wet?
Isolated drizzly rain fizzling out
Risk drizzly rain here and there after dawn Cambrian mountains. This will soon clear
Cloud on the hills?
Improving gradually - mostly or all clearing afternoon
Fog will shroud the hills from dawn, covering some lower slopes west Wales. There will be a sustained improvement as cloud base rises. By early afternoon, cloud base likely to vary between 750 and 900m west Wales, then clearing the summits.
Chance of cloud free summits?
30% post dawn, 80% by mid afternoon
Sunshine and air clarity?
Patchwork of sunshine, particularly afternoon. Visibility becoming very good or excellent.
How Cold? (at 750m)
5C; will tend to drop during day.
Freezing Level
Above the summits, although by late afternoon close to freezing point above 1000m.
Viewing Forecast For
Brecon Beacons
Friday 23rd October 2020
Last updated
Wednesday 21st October 2020 at
2:30 PM
How windy? (On the summits)
Southwesterly, 40mph from dawn. Dropping to 25mph from west by midday.
Effect of the wind on you?
Walking arduous for periods, but will become fairly small.
How Wet?
Rain, mainly morning
One or two pulses of rain, lasting an hour or so before clearing, probably into the afternoon.
Cloud on the hills?
Extensive morning; cloud base rising
Cloud forming lower slopes west Wales and south of Brecon for periods morning, although most cloud above 550m mid Wales. Then improving as cloud base rises base 750m to 950m, generally highest east Wales.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Patches of sunshine mainly afternoon, most widely east Wales. Visibility intermittently poor morning, but then mostly good, although slight haze.
How Cold? (at 750m)
Typically 4C; will tend to drop slowly through day.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 24th October 2020
Last updated
Wednesday 21st October 2020 at
2:30 PM
How windy? (On the summits)
Southerly typically 70mph, easing toward 45mph during afternoon - perhaps only late on.
Effect of the wind on you?
Any mobility difficult and wind chill severe where exposed on higher areas, sudden gusts at times some lower slopes.
How Wet?
Rain, widely heavy, later clearing
Soon widely constant rain, often heavy western mountains and Brecon Beacons. Likely to clear mid to late afternoon.
Cloud on the hills?
Extensive
Blanket fog most most of day above 200-450m most Presell east to Brecon Beacons. Elsewhere, cloud base a little higher, in rain typically 450 to 650m. Will improve only late in day.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Sunshine unlikely. Visibility often poor, particularly in heavy rain.
How Cold? (at 750m)
8C.
Freezing Level
Above the summits.
Planning Outlook
A series of often intense lows will come in off the Atlantic, bringing periods of storm force winds to all mountain areas from the weekend. Rain will fall almost daily, particularly on western mountains, where considerable total rainfall. On higher areas, mainly the Scottish Highlands, snow will fall intermittently.