Brecon Beacons

Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.

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Viewing Forecast For

Brecon Beacons
Wednesday 17th August 2022
Last updated Tue 16th Aug 22 at 4:50PM

Summary for all mountain areas

A ridge of high pressure will bring an improving day with low cloud breaking to reveal occasional sunshine. However, the legacy of a front across Wales and S Pennines will give low cloud and patchy drizzle in the morning, but brighter conditions will arrive into the afternoon, and the gusty northeast wind will ease.

Headline for Brecon Beacons

Gusty winds, later easing. Dull and damp morning. Slowly improving afternoon.

How windy? (On the summits)

Northeasterly 20 to 30mph in the morning, risk 35mph some tops, easing a little to 15 to 25mph in the afternoon.

Effect of the wind on you?

Blustery conditions, will impede walking at times across the hills. Strongest winds not necessarily on highest slopes. Easing a little in the afternoon.

How Wet?

Patchy rain tending to fizzle out.

Areas of rain and drizzle in the morning, slowly tending to fizzle out, leaving drier conditions in the afternoon.

Cloud on the hills?

Extensive, lifting and breaking up afternoon.

Areas of low cloud shrouding the hills extensively for several hours associated with a lingering front. Likely to slowly lift and break up from north into the afternoon, but unlikely to clear tops until late afternoon or evening.

Chance of cloud free summits?

20% lifting to 60% in afternoon

Sunshine and air clarity?

Dull morning, but cloud tending to break up to allow some a little sun in the afternoon. Murky morning, then visibility improving to become very good in afternoon.

How Cold? (at 750m)

10 to 12C

Freezing Level

Above the summits

Viewing Forecast For

Brecon Beacons
Thursday 18th August 2022
Last updated Tue 16th Aug 22 at 4:50PM

How windy? (On the summits)

Southwesterly 10mph at dawn, increasing to 15 to 25mph through day, risk 30mph tops.

Effect of the wind on you?

May increasingly impede walking across higher slopes through the day.

How Wet?

Dry start, then heavy bursts of rain.

After a dry start to the day, thickening cloud will bring and increasing risk of heavy bursts of showery rain towards and more especially into the afternoon.

Cloud on the hills?

Increasingly covering the hills.

Some good breaks at first with many hills clear, bar a few patches. However, increasingly low cloud will form over higher slopes as showery rain moves in.

Chance of cloud free summits?

70% at first, lowering from west to 30%

Sunshine and air clarity?

Becoming increasingly cloudy with early patches of sun soon giving way. Visibility sometimes poor due to rain.

How Cold? (at 750m)

12 lifting to 14C

Freezing Level

Above the summits

Viewing Forecast For

Brecon Beacons
Friday 19th August 2022
Last updated Tue 16th Aug 22 at 4:50PM

How windy? (On the summits)

West to southwesterly 15 to 25mph

Effect of the wind on you?

Mostly small

How Wet?

Occasional showers

Occasional passing showers through the day. These showers fairly brief, and many hills may well escape them and stay dry; especially in east Wales.

Cloud on the hills?

Confined to, or above, tops.

Early banks of cloud tending to break up and lift through morning to become confined to tops, and even here likely clearing into the afternoon.

Chance of cloud free summits?

70%

Sunshine and air clarity?

Occasional sunshine, most frequent in the east. Visibility good or very good, but lowering in showers as they pass by.

How Cold? (at 750m)

10 or 11C

Freezing Level

Above the summits

Planning Outlook

A more unsettled period of weather ahead over the coming week, as low pressure will be often anchored to the northwest of the British Isles. This will result in west to southwesterly winds prevailing, with periods of strong winds or even gales at times, with frequent rainfall across western mountains, and rainfall more occasional further east where the best of the dry and bright weather will occur. Generally cooler, but warm sectors will move in at times over England and Wales bringing an increase in humidity levels once again.