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

Click an icon for more information or click here for a key to all icons.

Click here to download the latest PDF Last Updated Sat 27th Jun 26 at 4:00PM
View our detailed version Last Updated Sat 27th Jun 26 at 4:00PM

Viewing Forecast For

Brecon Beacons
Sunday 28th June 2026
Last updated Sat 27th Jun 26 at 4:00PM

Summary for all mountain areas

Strengthening southwesterly winds, reaching gale force over western Scottish mountains, soonest near Skye. Much fresher everywhere, rather chilly on tops in exposure to wind. Some early rain, improving as cloud lifts and breaks, but scattered showers move east across the Highlands into the afternoon.

Headline for Brecon Beacons

Breezy. Mostly dry, cloud lifts and breaks above tops.

How windy? (On the summits)

West-southwesterly 20-25mph, occasionally gusting up to 30mph over tops, typically strongest around dawn, again toward evening; trending westerly later.

Effect of the wind on you?

Fairly small but gusts impacting ease of walking occasionally on high tops. Feeling fresh.

How Wet?

Possible early showers, substantially dry

From before dawn, some showery rain passes west-to-east, an odd heavier burst, but many places more often dry. From mid-morning on, largely dry, rare light spots of rain drifting onto western hills.

Cloud on the hills?

Lifting and breaking through morning

Fairly extensive early morning, to most middle slopes, or lower briefly southwest areas. During morning, a rising and breaking trend, to likely just passing banks over high tops by middle of day onward, often clear hills.

Chance of cloud free summits?

20% at first, rising middle of day to 80%

Sunshine and air clarity?

Mostly cloudy start breaking into a patchwork of cloud and sun. Visibility becoming very good.

How Cold? (at 750m)

11 to 13C, warmest east. Slightly cooling later afternoon, 9 or 10C by evening. Feeling like 5C in the breeze on tops.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Monday 29th June 2026
Last updated Sat 27th Jun 26 at 4:00PM

How windy? (On the summits)

Generally westerly, some variability, 10-15mph and tending to ease.

Effect of the wind on you?

Small to negligible.

How Wet?

Some patchy rain and showers, mostly dry

From dawn, a few spots of rain drifting onto western areas, amounting to little and more often widely dry. Some risk of pop-up afternoon showers.

Cloud on the hills?

Lifting to largely above tops

From dawn, variable banks of cloud at multiple elevations, the most extensive cloud on southwestern slopes. Through morning, lifting with breaks forming, largely above the summits afternoon, some caps returning if showers occur.

Chance of cloud free summits?

50% rising to 80%

Sunshine and air clarity?

A patchwork of cloud and sunshine, some variable thin high cloud around. Very good visibility.

How Cold? (at 750m)

10C rising to 13 or 14C.

Freezing Level

Above the summits.

Viewing Forecast For

Brecon Beacons
Tuesday 30th June 2026
Last updated Sat 27th Jun 26 at 4:00PM

How windy? (On the summits)

South then southwesterly, 20 to 25mph, occasional 30mph on high tops; later shifting westerly.

Effect of the wind on you?

Feeling blustery and cool over higher mountains. In places gusts may affect balance on exposed terrain.

How Wet?

Rain and showers, some heavy

Patchy rain and showers throughout the day, risk more frequent for periods, some heavy bursts tending to drift eastwards, risk of isolated thunder. May tend to clear from west Wales later in day.

Cloud on the hills?

Fairly extensive

Shrouding most high terrain all day, varying bases around rain, some ragged patches to lower slopes. Local breaks higher up mainly in eastern mid-Wales.

Chance of cloud free summits?

20%

Sunshine and air clarity?

Generally cloudy, a little weak sun mainly morning in east, then late in day west. Visibility often reduced by rain, poor for periods; intermittently very good if dry.

How Cold? (at 750m)

10 or 11C, little variation all day. Feeling close to 0C directly in the wind.

Freezing Level

Above the summits.

Planning Outlook

A westerly Atlantic pattern dominates the new week: high pressure south and low pressure north will bring alternating periods of rain punctuated by bright sunshine. Wind generally on the strong side with mild to sometimes warm temperatures, though cooler and windier spells at times produce significant wind chill on Scottish tops. Western hill groups from Lakeland northward will see the most cloud and patchy rain, while east and southern areas likely drier and sunnier. This pattern is likely to continue into next weekend.