Includes all higher summits in the southern half of Wales: the Bannau Brycheiniog / Brecon Beacons National Park, southern Cambrian Mountains and highest Preseli hills.
Brecon Beacons
Sunday 2nd August 2026
Last updated
Sat 1st Aug 26 at
2:07PM
A temporary ridge of high pressure will bring a fine day with light wind almost everywhere. Cloud will be above nearly all summits and the air will be very clear. Nevertheless a few showers at first NW Scotland and later cloud thickening many areas ahead of rain.
Light wind; very clear air; sunshine gradually weakening.
Generally easterly 10mph. Toward evening will begin to strengthen, perhaps to 20 or 25mph.
Mostly negligible.
Rain very unlikely
Small risk of a burst of rain toward or more likely after dusk.
Not expected
Almost certain
Sunshine will mostly give way by about midday as high cloud thickens. Excellent visibility.
11C rising to 17C.
Above the summits.
Brecon Beacons
Monday 3rd August 2026
Last updated
Sat 1st Aug 26 at
2:07PM
Easterly 20 to 25mph.
Mostly fairly small.
Rain now and again
Frequently dry, although occasional rain - perhaps no more than the odd burst - most likely toward evening, when risk of a thundery burst.
Patches may form in rain
Most or all hills cloud free, probably all day. But in rain, most likely only later in day fog my shroud some higher slopes(perhaps extensively), and possibly form on some lower slopes (most likely Preseli east to Brecon Beacons).
80%
Sunshine, sometimes weak due to thin high cloud. Some haze, although generally very good visibility.
17C
Above the summits.
Brecon Beacons
Tuesday 4th August 2026
Last updated
Sat 1st Aug 26 at
2:07PM
Generally southerly 20 or 25mph.
Mostly fairly small - gusty near showers
Risk heavy showers
Confidence low: Patches drizzly rain possible at first before becoming dry. In afternoon heavy, possibly thundery showers may develop.
Extensive, although clearing at times afternoon
Confidence low: 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.
50%
Occasional sunshine. Hazy, and visibility poor in rain.
14C
Above the summits.
Confidence in the detail remains low through the first half of the coming week. Areas of rain (and accompanying low cloud) will circulate across Scotland - quite large falls in some areas. Although total rain fairly small across England and Wales, bursts of rain, in places thundery, will occur in some areas. Later in the week, very little rainfall England and Wales, whilst mainly in western Scotland, some rain from time to time - though probably total rainfall small. Terrain remains exceptionally dry, ('tinder dry') except for W Scotland.