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

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Click here to download the latest PDF Last Updated Sat 1st Aug 26 at 2:07PM
View our detailed version Last Updated Sat 1st Aug 26 at 2:07PM

Viewing Forecast For

Brecon Beacons
Sunday 2nd August 2026
Last updated Sat 1st Aug 26 at 2:07PM

Summary for all mountain areas

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.

Headline for Brecon Beacons

Light wind; very clear air; sunshine gradually weakening.

How windy? (On the summits)

Generally easterly 10mph. Toward evening will begin to strengthen, perhaps to 20 or 25mph.

Effect of the wind on you?

Mostly negligible.

How Wet?

Rain very unlikely

Small risk of a burst of rain toward or more likely after dusk.

Cloud on the hills?

Not expected

Chance of cloud free summits?

Almost certain

Sunshine and air clarity?

Sunshine will mostly give way by about midday as high cloud thickens. Excellent visibility.

How Cold? (at 750m)

11C rising to 17C.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Monday 3rd August 2026
Last updated Sat 1st Aug 26 at 2:07PM

How windy? (On the summits)

Easterly 20 to 25mph.

Effect of the wind on you?

Mostly fairly small.

How Wet?

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.

Cloud on the hills?

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).

Chance of cloud free summits?

80%

Sunshine and air clarity?

Sunshine, sometimes weak due to thin high cloud. Some haze, although generally very good visibility.

How Cold? (at 750m)

17C

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Tuesday 4th August 2026
Last updated Sat 1st Aug 26 at 2:07PM

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

Confidence low: Patches 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

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.

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.

Planning Outlook

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.