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.
Sunday's Forecast
Severe gale or storm, mobility very difficult
Severe conditions on the mountains, any movement very challenging, you may be blown over. 55-70mph+
Heavy rain
Near-constant heavy rain, sometimes torrential over the mountains, very wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Chilly
Air temperature near or just above freezing on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
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Severe gale or storm, mobility very difficult
Severe conditions on the mountains, any movement very challenging, you may be blown over. 55-70mph+
Heavy rain
Near-constant heavy rain, sometimes torrential over the mountains, very wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Chilly
Air temperature near or just above freezing on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
Viewing Forecast For
Brecon Beacons
Sunday 23rd February 2025
Last updated
Sat 22nd Feb 25 at
4:00PM
Summary for all mountain areas
Severe conditions with storm-force winds widely over the mountains. Extensive heavy rain for Scotland in the morning, some wet snow only on highest summits for a time, by afternoon breaking up into showers. Heavy rain setting in for much of the day for England and Wales.
Headline for Brecon Beacons
Sustained storm-force winds. Rain becoming widely heavy.
How windy? (On the summits)
South to southwesterly 50 to 70mph, for periods 80mph at least in gusts on higher tops.
Effect of the wind on you?
Severe conditions: mobility challenging across the hills, frequently knocking you off your feet where exposed higher up.
How Wet?
Rain soon widespread, increasingly heavy
Rain starting from dawn or during morning further east, becoming increasingly persistently heavy, continuing through afternoon, only breaking up into showers by evening. Very wet underfoot, streams increasingly in spate, some flooding later.
Cloud on the hills?
Soon extensive
Shrouding the hills most or all day, possibly some eastern hills starting clear before cloud lowers and widely fills in to mid-slopes, or lower slopes toward south.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Overcast and dull, sun unlikely. Hazy, poor visibility in precipitation.
How Cold? (at 750m)
3C rising to 5C. Feeling like -10 to -15C due to wind chill.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 24th February 2025
Last updated
Sat 22nd Feb 25 at
4:00PM
How windy? (On the summits)
Southwesterly 25 to 30mph.
Effect of the wind on you?
Blustery over higher terrain, affecting comfortable walking on exposed areas. Considerable wind chill.
How Wet?
Occasional showers
A little rain on and off over windward western hills, rare brief showers passing eastwards.
Cloud on the hills?
Sometimes capping tops
Patches of cloud likely to come and go over higher tops, bases around 700m, most frequent toward west and south, but lifting above most or all tops for periods.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Occasional sun, mainly toward east. Visibility often good, reduced in showers.
How Cold? (at 750m)
3C. Feeling like -7C in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 25th February 2025
Last updated
Sat 22nd Feb 25 at
4:00PM
How windy? (On the summits)
Westerly 20 to 25mph.
Effect of the wind on you?
Fairly small, but may start to affect comfortable walking on higher tops. Marked wind chill where exposed.
How Wet?
Scattered showers, snow on tops
Occasional showers, most common western Cambrians, falling as snow above 600-700m, also occasional hail.
Cloud on the hills?
Mostly higher and western tops
Banks of cloud likely to come and go over higher tops, most frequent toward west Wales, bases 600-700m, briefly lower in showers.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Occasional sun, most frequent toward east. Visibility often excellent, but reduced briefly in showers.
How Cold? (at 750m)
Around 0C. Wind chill feeling like -7C.
Freezing Level
800 to 900m.
Planning Outlook
Returning to freezing over the Scottish Munros from Monday, staying sub-zero over the tops during the week ahead, whilst higher summits in England & Wales will fluctuate around freezing point. Beware of icy surfaces as previously thawed ground refreezes. Wet underfoot on lower ground with streams in spate and local flooding at first following several spells of heavy rain recently. Showery precipitation coming in from the west, falling as snow on the mountains, accumulating on higher terrain, also sometimes hail. A possibly more widespread area of rain and hill snow during midweek. Wind speeds varied, west to southwesterlies at times gale force on tops, prepare for considerable chill factor.