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
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Air temperature below freezing all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Air temperature below freezing all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Flooding
Fast-flowing rivers and streams. Some routes may be impassable due to flooding.
Viewing Forecast For
Brecon Beacons
Tuesday 15th April 2025
Last updated
Mon 14th Apr 25 at
4:30PM
Summary for all mountain areas
Patchy rain and hill snow across Scotland. Cloud lifting and breaking, returning in showers. Patchy rain into England as well with more cloud here in the morning. Local slow-moving showery bursts into afternoon. Rain becoming persistent in south Wales and reaching north, becoming windy too with risk of gales here.
Headline for Brecon Beacons
Rain becoming persistent. Windy.
How windy? (On the summits)
North-northwesterly 20-25mph. Gradually increasing through the day, becoming 35-45mph around dusk.
Effect of the wind on you?
Winds affecting comfortable walking, gradually becoming more and more of an impediment. Strenuous with balance challenges around dusk. Significant wind chill.
How Wet?
Rain soon persistent with heavy spells
Patchy rain in morning, developing into persistent rain by the afternoon with heavy spots.
Cloud on the hills?
Fairly extensive
Covering the hills widely in the morning and during rain. Bases rising with time, though high terrain persistently covered.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Little or no sun. Visibility good away from showers, becoming mostly poor.
How Cold? (at 750m)
2 to 4C most of the day. Lowering to 1 to 2C westernmost mountains as dusk approaches. Feeling between -10C and -15C in strongest wind.
Freezing Level
Above the summits most of the day, chance of lowering to higher summits around dusk.
Viewing Forecast For
Brecon Beacons
Wednesday 16th April 2025
Last updated
Mon 14th Apr 25 at
4:30PM
How windy? (On the summits)
Very uncertain forecast detail: Westerly risk 30-45mph, but possibly much lighter speeds overall.
Effect of the wind on you?
Beware risk of challenging conditions and significant wind chill at least part of the day. Possibly much more benign conditions.
How Wet?
Risk early heavy rain and hill snow
Uncertain, but increasing risk of a extensive area of heavy rain and hill snow above 600m moving northwards across the region early in the day. Then some scattered showers with hail.
Cloud on the hills?
Extensive then lifting
Risk shrouding the hills widely if rain/snow is persistent at first. Likely to rise during day toward tops with breaks forming.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Some sun may break through with time. Visibility poor if in rain/snow, may improve to be very good away from showers.
How Cold? (at 750m)
Near 0C in morning, rising to 3C afternoon. If stronger winds occur, chill factor feeling like -10C.
Freezing Level
Possibly down to 700-800m, mainly during precipitation in morning; rising in afternoon.
Viewing Forecast For
Brecon Beacons
Thursday 17th April 2025
Last updated
Mon 14th Apr 25 at
4:30PM
How windy? (On the summits)
Southerly 10-20mph. Chance of increasing speeds around dusk.
Effect of the wind on you?
Fairly small
How Wet?
Patchy showers, increasing
Patchy light showers here and there, increasing through the afternoon. Most common on south-facing slopes and over high tops.
Cloud on the hills?
Gradually lifting off summits
Cloud banks often covering high areas. Bases down to mid-slopes in the morning, around 500m on southern aspects. Rising through the day with breaks to high tops for frequently clear conditions afternoon.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Occasional or intermittent sun, becoming overcast as dusk approaches. Excellent visibility though poor in rain.
How Cold? (at 750m)
4 or 5C
Freezing Level
Above the summits
Planning Outlook
A highly complex weather situation during this week as areas of low pressure circulate slowly near or across the British Isles. A mix of showers with hail and snow on hills, but at times a risk of more persistent and widespread rain and hill snow - particularly Wednesday, but a similar risk continues into the Easter period. Occasional windows of dry and clear conditions locally. Wind speeds very variable, often light, but beware periods of strengthening markedly to gale force over the hills. Temperatures generally cool, particularly compared to recent times, often near or below freezing on higher mountains.