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 Fri 3rd May 24 at 4:45PM
View our detailed version Last Updated Fri 3rd May 24 at 4:45PM

Viewing Forecast For

Brecon Beacons
Saturday 4th May 2024
Last updated Fri 3rd May 24 at 4:45PM

Summary for all mountain areas

A broad and very slack area of low pressure will edge north bringing extensive low cloud and areas of drizzle, with again bursts of heavy, perhaps locally thundery rain, developing into Scotland. Best breaks in cloud and sun in the northwest Highlands, and clearer, brighter conditions developing for southern Wales.

Headline for Brecon Beacons

Early low cloud and any drizzle, will clear from south to brighter, clearer conditions.

How windy? (On the summits)

South to southwesterly 10 to 20mph.

Effect of the wind on you?

Fairly small.

How Wet?

Likely dry much of daytime

Chance pockets of fine drizzle if in cloud at first, soon fading.

Cloud on the hills?

All clearing

Varied banks of cloud on hills and some valley fog at first. Soon dispersing during the morning to leave the hills clear.

Chance of cloud free summits?

Rising to 90%

Sunshine and air clarity?

Occasional sun developing with varied high level cloud. Visibility generally good, possible slight haze, mistier in places at first.

How Cold? (at 750m)

6 to 8C.

Freezing Level

Above the summits

Viewing Forecast For

Brecon Beacons
Sunday 5th May 2024
Last updated Fri 3rd May 24 at 4:45PM

How windy? (On the summits)

South to southeasterly 10 to 15mph, may drop out at times.

Effect of the wind on you?

Small

How Wet?

Increasing risk of some showers

After a mostly dry start to the day, the cloud will bubble up with the risk of showers moving up from the south.

Cloud on the hills?

Patches coming and going over tops

Generally good breaks through the day when the hills are clear. However some patches will form at times across higher slopes, especially in and around showers.

Chance of cloud free summits?

60%

Sunshine and air clarity?

A mix of cloud and patchy sun. Visibility good or at times very good.

How Cold? (at 750m)

7C

Freezing Level

Above the summits

Viewing Forecast For

Brecon Beacons
Monday 6th May 2024
Last updated Fri 3rd May 24 at 4:45PM

How windy? (On the summits)

Northerly 10 to 20mph, risk gusting higher near any heavy showers.

Effect of the wind on you?

Mostly small, but be prepared for some sudden gusts near any heavy showers.

How Wet?

Showers breaking out, some heavy.

After a mostly dry morning, clouds will bubble up towards and into the afternoon with the risk of scattered showers, some heavy. Mostly dry near the coast.

Cloud on the hills?

Banks of low cloud, lifting and breaking

Banks of low cloud at varying heights from dawn, some hills perhaps clear. Bases will tend to rise and break up with clearances, but reforming in showers.

Chance of cloud free summits?

Lifting to 60%

Sunshine and air clarity?

Cloudy periods, but also spells where the sun breaks through, best afternoon coast. Visibility good or very good at times, but poor in any heavy showers.

How Cold? (at 750m)

8C

Freezing Level

Above the summits

Planning Outlook

Slow-moving weather patterns continue through the Bank Holiday weekend as a weak zone of low pressure dominates over the British Isles. There will remain uncertainty of local day-to-day detail, but most likely the wind often light and temperatures generally mild, but less warm than midweek in western Scotland. Sunday into Monday, will see varied zones of heavy showers forming, local thunderstorms, but some places escaping often dry with the best sunny breaks for coastal areas as the convection builds inland. High pressure then tends to build from the west into midweek to bring a fair amount of dry weather, although rain bearing fronts may return to the northwest at times.