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.
Monday'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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Very warm
Warm conditions across the hills, rising above 15C on tops. Increasingly hot on lower terrain, reaching 25C+ in many valleys. Beware of dehydration.
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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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Very warm
Warm conditions across the hills, rising above 15C on tops. Increasingly hot on lower terrain, reaching 25C+ in many valleys. Beware of dehydration.
Viewing Forecast For
Brecon Beacons
Monday 3rd August 2026
Last updated
Sun 2nd Aug 26 at
4:00PM
Summary for all mountain areas
Some rain drifts north across Scotland, with low cloud banks mostly on south-facing hill groups. A gusty east-southeasterly wind all day England & Wales, and strengthens with time across the Highlands. Humid with warm sun and thin high cloud for England & Wales, later risk of rain in west.
Headline for Brecon Beacons
Gusty wind. Largely dry until late, hazy sun, warm and humid.
How windy? (On the summits)
Easterly 20 to 25mph, some gusts 30mph around higher tops.
Effect of the wind on you?
Mostly fairly small, but some gusty areas making walking uncomfortable on exposed tops.
How Wet?
Risk of rain later in day
Most of the day dry. Late afternoon, some spots from high cloud may develop in west, then risk of some bursts of rain forming into evening from the west. Greater risk of rain widely onward into night, some heavy.
Cloud on the hills?
Likely none until late
Rare if any brief patches around upper slopes, then late in day may form over west coastal hills if rain develops.
Chance of cloud free summits?
Above 90% until late
Sunshine and air clarity?
Some weak sunshine through thin high cloud; beware sunburn. Cloud tends to thicken afternoon. Some haze, although generally very good visibility.
How Cold? (at 750m)
17C rising to 20C afternoon, humid.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 4th August 2026
Last updated
Sun 2nd Aug 26 at
4:00PM
How windy? (On the summits)
Generally southerly 20 or 25mph.
Effect of the wind on you?
Mostly fairly small - gusty near showers
How Wet?
Risk heavy showers
Patchy drizzly rain possible at first before becoming dry. In afternoon heavy, possibly thundery showers may develop.
Cloud on the hills?
Extensive, although clearing at times afternoon
In morning, expect blanket of fog many higher ares, sometimes the cloud below 300m Preseli to Brecon Beacons. Will improve as general cloud base lifts to 500 to 700m, at least in mid Wales.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Occasional sunshine. Hazy, and visibility poor in rain.
How Cold? (at 750m)
14C
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 5th August 2026
Last updated
Sun 2nd Aug 26 at
4:00PM
How windy? (On the summits)
West-southwesterly, speed may vary during day, but mostly in range 25 to 35mph, may increase with time.
Effect of the wind on you?
Ease of walking affected, at times more strenuous and making balance challenging on higher terrain. Marked wind chill.
How Wet?
Local showers
Patchy rain and showers most common on western Cambrians. Brief scattered showers passing eastward.
Cloud on the hills?
Most common western hills
Banks of cloud over western Cambrians above 500-600m. Higher bases toward Brecon Beacons, capping tops for periods, more often above hills further east.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Occasional sunshine, mainly toward south and east. A slight haze, visibility mostly good east.
How Cold? (at 750m)
10 to 12C, coolest toward west. Feeling near to freezing in the stronger wind.
Freezing Level
Above the summits.
Planning Outlook
Low pressure circulates slowly over Britain into midweek bringing areas of rain and thundery showers widely, accompanied by brisk winds up to gale force for periods. Trending toward westerlies later in the week and next weekend, by then most rain and low cloud in western Scotland, but showery rain elsewhere at times. Generally fresh temperatures widely, often in mid-single figures over Scottish high tops. Despite falls of rain, beware of ongoing fire management restricting access to hills locally.