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
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.
Mostly dry, partly cloudy
Dry most or all day. Variable cloud banks drifting over the mountains, some slopes clearing at times, a little sun may break through locally.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Below freezing all day from many valleys upward. Severe chill factor if exposed to strong winds. Suitable protective clothing required.
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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.
Mostly dry, partly cloudy
Dry most or all day. Variable cloud banks drifting over the mountains, some slopes clearing at times, a little sun may break through locally.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Below freezing all day from many valleys upward. Severe chill factor if exposed to strong winds. Suitable protective clothing required.
Viewing Forecast For
Brecon Beacons
Sunday 19th January 2025
Last updated
Sat 18th Jan 25 at
4:30PM
Summary for all mountain areas
Banks of low cloud over the southern Highlands and up the west coast to Skye, some patchy coastal drizzle. Many higher Scottish tops poking out above the cloud sheet. The northern Highlands sunnier. England & Wales sees fairly extensive low cloud, with only highest tops possibly poking just above cloud. Wind fairly light.
Headline for Brecon Beacons
Cloud/fog banks, possible breaks locally. Chilly.
How windy? (On the summits)
Southerly 10-20mph. Turning southwest and rising to 25mph. Gusty on lower terrain up to 30mph.
Effect of the wind on you?
Minimal effects, through gusts on lower terrain may cause moments of imbalance.
How Wet?
Spells of light drizzle on south slopes
Isolated spells of light drizzle or snow grains on south-facing slopes. Otherwise dry.
Cloud on the hills?
Cloud fairly extensive, some tops may just clear
South-facing hills widely covered low clouds up to around 700m. Tops may clear though patches will drift up over many tops at times. Clearer patches more common north of highest ridges.
Chance of cloud free summits?
20%, 50% above 700m and north
Sunshine and air clarity?
Patchy sun on some higher slopes. Excellent visibility out of cloud, but often poor.
How Cold? (at 750m)
0C near west coast, to -2C inland, warming a few degrees in the later afternoon (little variation with height).
Freezing Level
Poorly defined freezing level - partly frozen terrain and near freezing air both higher and lower slopes much of the day.
Viewing Forecast For
Brecon Beacons
Monday 20th January 2025
Last updated
Sat 18th Jan 25 at
4:30PM
How windy? (On the summits)
Variable direction, 10-20mph. Considerable gustiness in eastern areas.
Effect of the wind on you?
Fairly small
How Wet?
Showery rain spells
Some showery rain spells. Possibility of prolonged times of rain, but total amounts likely small.
Cloud on the hills?
Hills frequently shrouded.
Frequent cloud banks shrouding hills up to mountain tops. Lower slopes have a better chance of remaining clear. Occasional breaks possible.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Little chance of sun. Mostly poor visibility.
How Cold? (at 750m)
3C
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Tuesday 21st January 2025
Last updated
Sat 18th Jan 25 at
4:30PM
How windy? (On the summits)
South-southwesterly 15-25mph.
Effect of the wind on you?
Convenience of walking affected in higher winds.
How Wet?
Little precipitation expected
Light drizzle spells possible on south slopes. Chance of prolonged rain spells in western areas, details uncertain.
Cloud on the hills?
Tops often capped, lower bases in rain.
Variable, often capping tops. Occasional spells of cloud reaching lower terrain during rain.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Little or no sunshine. Good visibility when out of cloud/rain.
How Cold? (at 750m)
4C at first, colder on lowest terrain. Dropping to 2C.
Freezing Level
Above the summits
Planning Outlook
Gradually lowering pressure and falling temperature during the days ahead - mountain tops dropping sub-zero widely into midweek. Some areas of precipitation, most frequent in western Scotland early in the new week, falling as snow over higher terrain, although total amounts generally small. Blustery over some higher slopes with marked wind chill, but speeds relatively light for many into midweek. Winds are likely to strengthen toward next weekend as deeper areas of low pressure over the Atlantic approach. Late January is likely to see more frequent precipitation and periods of gales or possibly stormy winds at times; fluctuating temperatures and freeze-thaw cycles.