Brecon Beacons
Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.
Viewing Forecast For
Brecon Beacons
Friday 22nd January 2021
Last updated
Thursday 21st January 2021 at
2:57 PM
Summary for all mountain areas
Very cold across the mountains - terrain widely frozen, very icy in places, plus lying snow in most areas. Brisk west to northwest winds will maintain a severe chill factor in exposure. Areas of snow or hail showers moving inland from western coasts.
Headline for Brecon Beacons
Cold, brisk wind. Local snow or hail showers.
How windy? (On the summits)
Westerly 15 to 25mph.
Effect of the wind on you?
Walking impeded at times, significant wind chill in exposure on tops.
How Wet?
Scattered snow and hail showers
Occasional snow or hail showers moving inland from the west coast, briefly heavy, chance isolated thunder. Greatest risk of showers reaching the Brecon Beacons is into the afternoon. Eastern hills may remain largely dry all day.
Cloud on the hills?
Breaks to tops
Most cloud often confined to patches on high tops, and breaks frequent. However, where snow occurs, shafts of cloud briefly below 500m.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Brief glimpses of sun and often very clear air. Visibility abruptly very poor in showers.
How Cold? (at 750m)
-2C. Where exposed to wind on higher terrain, feeling as cold as -12C.
Freezing Level
450-600m, but also frost in some valleys in the morning. Very icy underfoot.
Viewing Forecast For
Brecon Beacons
Saturday 23rd January 2021
Last updated
Thursday 21st January 2021 at
2:57 PM
How windy? (On the summits)
Northwesterly 20 to 25mph.
Effect of the wind on you?
Walking impeded at times on higher terrain. Significant wind chill.
How Wet?
Snow or hail showers
Snow and hail showers continue to come in from the west, sometimes frequent and heavy in west. Small risk isolated thunder. Few showers reaching east Wales.
Cloud on the hills?
Patches high tops
Cloud base varied, may often cap higher slopes in west Wales, below 600m in showers. Breaks more common in eastern areas.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Brief sun and very clear air. Visibility locally very poor in showers.
How Cold? (at 750m)
-3C
Freezing Level
Most terrain frozen from dawn. Partial thawing lower slopes up to 300-400m.
Viewing Forecast For
Brecon Beacons
Sunday 24th January 2021
Last updated
Thursday 21st January 2021 at
2:57 PM
How windy? (On the summits)
Direction may vary, mostly westerly, occasional lulls, but risk strengthening to 30-40mph for several hours.
Effect of the wind on you?
Sometimes small, but beware of deteriorating conditions and significant wind chill.
How Wet?
Risk periods of snow and hail
Detail uncertain: Areas of snow or hail showers coming in from the west. May merge into a zone of constant snow for a few hours. Also periods where dry for several hours locally. Isolated thunder.
Cloud on the hills?
Extensive around precipitation
Cloud varied - sometimes only fragments on higher slopes, with good breaks. Around precipitation, forming extensively and quickly below 700m.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Intermittent sun and very clear air. Visibility abruptly appalling if in snow.
How Cold? (at 750m)
-4C
Freezing Level
Terrain widely frozen. May rise above zero up to 300-400m for a time.
Planning Outlook
All mountains sub-zero through the weekend and into early next week. Terrain widely frozen with fresh snow cover to many lower slopes. Some freeze-thaw cycles may then occur, although higher Scottish mountains may rarely lift above zero for the next couple of weeks at least. Showers of snow and hail, or further significant snowfalls in some areas. Precipitation frequent into late January. Hard frosts most common in Highland glens. Very icy underfoot in places. Wind speeds varied, occasionally reaching gale force.