Brecon Beacons Forecast

Viewing Weather Forecast for Wednesday 23rd January 2019

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

Today | Thursday | Friday

Forecast last updated on Tuesday 22nd January 2019 at 2:20pm

Summary for all mountain areas

A cold but generally dry and sunny day for many areas. Terrain widely frozen from valleys upward following some very low night temperatures. Local snow showers or flurries, focused around western coastal hills. Fragments of cloud on some higher slopes. The air very clear.

Headline for Brecon Beacons

Generally dry. Terrain frozen. Chilly breeze.

How windy? (On the summits)

North backing northwesterly, 20-25mph morning, easing to 15mph during afternoon.

Effect of wind on you?

Fairly small, but noticeable chill where exposed on high tops in morning.

How Wet? (Precipitation and its impact)

Substantially dry

Many areas dry, although particularly coastal hills in west Wales, occasional snow showers.

Cloud on the hills?

Many summits cloud free

Typically cloud base 850m or above, although near showers, patches briefly below 550m. In west Wales, risk cloud base frequently 550m.

Chance of cloud free summits?


Air clarity (below cloud)

Bursts of sunshine west Wales; more frequent sun toward east. The air very clear, rarely reduced if snow flurries occur.

How Cold? (at 750m)

-2C. Where exposed to wind, feeling close to -10C.

Freezing Level

400-550m, highest near west coast, but most terrain frozen from valleys up. Partial thawing sunlit slopes.

Planning Outlook

All mountain areas of Britain from Thursday 24th January 2019

Cold conditions are expected to prevail across the mountains over the next week or fortnight - perhaps longer. Mountain temperatures will frequently be sub-freezing, often to lower slopes in Scotland. Wind speeds very varied day-to-day, at times up to gale force with severe chill factor. Over the next 5 days or so, winds will be mostly from the west or northwest, allowing briefly less cold air to affect England & Wales in particular. Whilst there is some uncertainty, indications into next week favour a cyclonic situation, with areas of precipitation circling around a broad area of low pressure, with scope for locally substantial snowfalls on the mountains. A northeasterly flow may well emerge for a few days.