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.
Friday's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Brecon Beacons
Friday 15th May 2026
Last updated
Thu 14th May 26 at
4:15PM
Summary for all mountain areas
Remaining cold, near to freezing all day on higher tops. Strongest northwesterly winds in the morning and toward eastern Scotland giving significant chill factor. A scattering of mostly brief showers with snow and hail, less intense than recent days. Cloud lifting above many summits, occasional sun.
Headline for Brecon Beacons
Chilly and breezy. Isolated showers.
How windy? (On the summits)
Northerly 20 to 25mph, typically strongest over western hills, occasional 30mph high tops.
Effect of the wind on you?
Starting to impede walking at times on high tops. Considerable wind chill, particularly morning.
How Wet?
Brief local showers
One or two showers mostly near Cardigan Bay early morning, here fading. Well scattered brief showers forming inland middle of day and afternoon, but often dry. Chance of brief hail.
Cloud on the hills?
Little if any
Some patches capping higher western tops in the morning, but bases rising to clear above most or all tops by middle of day onward.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Patchy sun, best early morning in south, then improving near west coast afternoon. Visibility excellent.
How Cold? (at 750m)
3 or 4C. Feeling like -7C directly in wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Saturday 16th May 2026
Last updated
Thu 14th May 26 at
4:15PM
How windy? (On the summits)
Westerly 10 to 15mph. Becoming southwesterly, rising a little during day to 20mph.
Effect of the wind on you?
Mostly small, but feeling cool as breeze freshens.
How Wet?
Rain develops
One or two brief showers develop, otherwise largely dry early in day. Patchy rain moving in from west, becoming more persistent western areas afternoon, then extending further eastward.
Cloud on the hills?
Mostly little, then lowering in rain
Rare patchy cloud briefly on western tops in morning, otherwise clear. As rain develops, cloud tending to fill in with time, lowest over western hills, patchier eastwards.
Chance of cloud free summits?
80% dropping to 30% afternoon
Sunshine and air clarity?
Any early weak sun gives way to overcast skies. Visibility starts very good, reducing as rain develops, poorer over hills afternoon.
How Cold? (at 750m)
2C rising to 5C afternoon.
Freezing Level
Close to freezing on highest summits and inland valleys at dawn. Rising further above freezing to tops.
Viewing Forecast For
Brecon Beacons
Sunday 17th May 2026
Last updated
Thu 14th May 26 at
4:15PM
How windy? (On the summits)
West turning southwesterly increasing from 15mph to 25mph during the day, risk 30mph later.
Effect of the wind on you?
Starting small, but becoming more blustery, may start to affect ease of walking on exposed terrain with noticeable chill.
How Wet?
Showers develop
A little rain toward west coast early morning, odd showers then develop inland during morning. Heavier showers form middle of day onward, passing eastward in local bands, risk hail & thunder. Tending to clear into evening.
Cloud on the hills?
Patches in morning and in showers
Patchy cloud around west and southern hills in the morning. Mostly lifting to tops or above, briefly lowering with ragged patches around showers.
Chance of cloud free summits?
50% rising to 80%
Sunshine and air clarity?
Largely cloudy with occasional sun, then becoming sunnier near to coast later afternoon onward. Visibility very good, but reduced in showers.
How Cold? (at 750m)
4C rising to 6C. Feeling sub-zero as wind increases.
Freezing Level
Above the summits.
Planning Outlook
A shift toward west-southwesterly over the weekend brings a gradual rise of temperature. A mixed weather story with some rain and lowering cloud moving in from the west into Saturday afternoon. By Sunday and Monday, some showery rain, passing eastwards during the daytimes, generally improving afternoons in western areas. Risk by later Monday of rain moving into Wales from the southwest. Damp south-southwesterlies then prevail for a few days next week, with rain at times Tuesday and Wednesday, most on western hills, particularly Scotland. A drier and warmer theme later in the week as higher pressure builds.