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

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Click here to download the latest PDF Last Updated Thu 10th Jul 25 at 4:08PM
View our detailed version Last Updated Thu 10th Jul 25 at 4:08PM

Viewing Forecast For

Brecon Beacons
Friday 11th July 2025
Last updated Thu 10th Jul 25 at 4:08PM

Summary for all mountain areas

Sunny and very warm across most areas with light or negligible wind - beware risk of sunburn and dehydration. Warm temperatures will persist overnight. Temperatures nearer the middle teens on Scotland's west coast in the breeze, some early patchy cloud onto Skye and coastal slopes to the south.

Headline for Brecon Beacons

Sunny and very warm, staying warm into night

How windy? (On the summits)

Light winds with variable direction. Into nighttime, wind generally shifts easterly with breezes up to 15mph.

Effect of the wind on you?

Negligible.

How Wet?

Very likely dry

Remote risk of isolated late-afternoon showers, particularly east Cymru/Wales. Dry otherwise.

Cloud on the hills?

No cloud expected

Chance of cloud free summits?

Almost certain

Sunshine and air clarity?

Widespread sunshine, only patchy fair weather cloud building later; beware sunburn and dehydration. Excellent visibility; some haze eastern Cymru/Wales.

How Cold? (at 750m)

19C, rising to 22 to 24C, warmest in the eastern Bannau Brycheiniog/Brecon Beacons NP and the Black Mountains.

Freezing Level

Well above the summits. (Remaining warm on high ground overnight.)

Viewing Forecast For

Brecon Beacons
Saturday 12th July 2025
Last updated Thu 10th Jul 25 at 4:08PM

How windy? (On the summits)

Southeasterly 15mph or less on the Cambrian Mountains and near Cardigan Bay. Light and variable elsewhere.

Effect of the wind on you?

Small or negligible.

How Wet?

Very likely dry

Remote risk of isolated thunderstorms in the late afternoon or early evening. Otherwise, dry all day.

Cloud on the hills?

Cloud not expected

Chance of cloud free summits?

Almost certain

Sunshine and air clarity?

Widespread strong sunshine; beware sunburn, dehydration and heatstroke. Low level haze, but excellent visibility on high ground.

How Cold? (at 750m)

19C rising to 23C by mid-afternoon, remaining mild overnight on high ground.

Freezing Level

Well above the summits. (Valley temperatures approaching 30 to 32C in the afternoon, hottest east Wales.)

Viewing Forecast For

Brecon Beacons
Sunday 13th July 2025
Last updated Thu 10th Jul 25 at 4:08PM

How windy? (On the summits)

East to southeasterly 15-20mph. Shifting southerly later in the day.

Effect of the wind on you?

Fairly small.

How Wet?

Little or no rain

Small chance of fleeing local spots of light rain later in the day.

Cloud on the hills?

No cloud expected

Chance of cloud free summits?

Above 90%

Sunshine and air clarity?

A widely sunny morning, patchy cloud building and increasingly blocking sun. Excellent visibility.

How Cold? (at 750m)

17C rising to 20C

Freezing Level

Above the summits

Planning Outlook

Very warm or hot conditions this weekend in the mountains and the valleys, with extreme risk of wildfire in Scotland; beware dehydration and sunburn. Light winds and very little cloud. Low pressure returns late Sunday into Monday bringing rain to most, risk heavy or thunderstorms north England and Scotland. Temperatures will cool towards average and often raining for the first half of the week. Becoming more mixed from mid-week as pressure goes slack and Atlantic fronts make only weak pushes from the west. Patchy rain and cloud will come and go with the best opportunities for sun in north and western areas.