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
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Brecon Beacons
Sunday 3rd May 2026
Last updated
Sat 2nd May 26 at
4:19PM
Summary for all mountain areas
Fog and patchy drizzle in Scotland, cloud most persistent east highlands. Rain over southeast Scotland and English mountains most or all day, extensive low fog over the Pennines; becoming wet underfoot with fast-flowing streams. Patchy rain and fog in Wales too, a risk of heavy afternoon showers.
Headline for Brecon Beacons
Extensive fog, patchy rain turns to heavy showers afternoon
How windy? (On the summits)
Low confidence in forecast due to proximity of low centre: generally northwesterly 5-15mph, but direction may substantially vary in the early hours.
Effect of the wind on you?
Mostly small.
How Wet?
Patchy rain, afternoon heavy showers
Fairly wet underfoot with fast-flowing streams after a very wet night. Patchy showery rain morning and midday, most frequent west, then frequent heavy showers afternoon, with small risk thunder.
Cloud on the hills?
Extensive early, lifting, but returning lower in afternoon showers
Blanket fog shrouds the hills to low slopes from dawn. A slow lifting trend, bases approaching 700-800m, but will then lower during heavy afternoon showers, leaving behind ragged patches on lower slopes as well.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely overcast, murky, and poor visibility due to fog and rain. Visibility may improve for a few hours after cloud base lifts and before afternoon showers break out.
How Cold? (at 750m)
8 or 9C, may warm slightly in the east.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 4th May 2026
Last updated
Sat 2nd May 26 at
4:19PM
How windy? (On the summits)
North-northeasterly 5-15mph, trending towards the higher end of the range with time.
Effect of the wind on you?
Small, but some nuisance breezes may form on high summits later.
How Wet?
Early showery rain
A band of showery rain affects most hills from dawn, perhaps well into the morning. An easing trend from midday, just scattered showers later afternoon.
Cloud on the hills?
Extensive early, lifting to summits afternoon
Cloud widespread from dawn, likely to at least middle slopes, to lower slopes south slopes. Bases begin to rise through morning, mostly just high terrain by early afternoon and increasingly breaking off summits.
Chance of cloud free summits?
20% rising to 80%
Sunshine and air clarity?
Often cloud, but a few glimpses of sun break out here and there. Visibility very good.
How Cold? (at 750m)
5C, rising by mid afternoon to 7 to 9C, warmest east Wales.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Tuesday 5th May 2026
Last updated
Sat 2nd May 26 at
4:19PM
How windy? (On the summits)
Northerly 10-15mph, sometimes less.
Effect of the wind on you?
Mostly small.
How Wet?
Scattered showers
Showers here and there, dry periods as well.
Cloud on the hills?
Lifting off the hills
Patchy fog at several heights at dawn, lifting and breaking through morning for clear hills. An odd patch may return to high terrain around and after showers.
Chance of cloud free summits?
Rising to 80%
Sunshine and air clarity?
Largely a patchwork of sun, perhaps cloudier early. Very good visibility.
How Cold? (at 750m)
5 to 8C, mildest east.
Freezing Level
Above the summits.
Planning Outlook
Chilly temperatures on the mountains most or all week, particularly across the Scottish Highlands where fresh snow in some areas and freezing level sometimes below 750m; some overnight frosts developing in the glens and corries, though always thawing soon after sunrise. Mixed weather with showers drifting around the country, though total rainfall will be fairly small. Wind often light as well, though variable afternoon breezes will form, particularly around showers where gusts may be suddenly strong. Local low fog in the mornings, typically lifting towards or above many summits; a mix of high cloud and sun for most. Detail uncertain into next weekend, but lowering pressure brings an increased risk of wind and rain.