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.
Tuesday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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
Tuesday 12th May 2026
Last updated
Mon 11th May 26 at
4:30PM
Summary for all mountain areas
Scotland: Feeling cold in the gusty westerly winds. Early band of rain will clear to brighter skies and scattered showers. Showers more frequent later in day with risk of hail and thunder. England and Wales: Chilly with gusty westerly winds. Showery rain for a time, then brighter with a few passing showers.
Headline for Brecon Beacons
Cold westerly winds. Rain for a time. Brightening up later with a few showers.
How windy? (On the summits)
Westerly 25 to 35mph, squally gusts around showers.
Effect of the wind on you?
Very blustery across the hills, at times uncomfortable walking on exposed higher terrain. Considerable wind chill.
How Wet?
Showery rain mostly west
A band of showery rain moving southeast during the day, arriving around lunchtime when it may be frequent rain over an hour or more in west Wales. Following this, brighter skies and scattered showers.
Cloud on the hills?
Occasionally capping tops
Some cloud banks drifting over higher slopes, mostly west Wales where rain develops for a time. Then rising and breaking again.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Occasional sun. Visibility often very good, but reduced in rain or showers.
How Cold? (at 750m)
4 to 6C. Feeling like -5C directly in the wind on high tops.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Wednesday 13th May 2026
Last updated
Mon 11th May 26 at
4:30PM
How windy? (On the summits)
West to northwesterly 30 to 45mph, strongest sustained speeds likely in the morning.
Effect of the wind on you?
Significant wind chill, very blustery, strenuous walking on high terrain, buffeting gusts making balance challenging.
How Wet?
Showery, hail, snow highest tops
Showers mostly toward west Wales early morning, but increasingly widespread, heavy bursts with hail, risk isolated thunder; snow at times falling on high tops mostly above 700m.
Cloud on the hills?
Sometimes capping tops in showers
Patchy cloud around some higher slopes in morning, mainly western areas. Most cloud often lifting above the hills, but some ragged patches to 600m around showers.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Brief bursts of sun and intermittently excellent visibility, but suddenly very poor during showers.
How Cold? (at 750m)
1C rising to 4C. Wind chill feeling like -10 to -15C.
Freezing Level
Close to freezing on highest summits early morning, rising above, but lowering briefly near high tops in showers.
Viewing Forecast For
Brecon Beacons
Thursday 14th May 2026
Last updated
Mon 11th May 26 at
4:30PM
How windy? (On the summits)
North-westerly 15 to 25mph, but perhaps up to 30mph for western coastal hills.
Effect of the wind on you?
Feeling cold for mid May, with considerable chill in the north-westerly wind.
How Wet?
Showers developing widely, some hail.
Mostly dry start, before showers develop and become fairly widespread in the afternoon, Some heavy with hail.
Cloud on the hills?
Varied, but often above tops away from showers.
Given flow direction, generally well elevated bases with tops often clear. However, in and around showers, shafts of cloud may lower onto tops. Sleet tops.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Sunshine best well inland early in the day. Otherwise, fleeting glimpses between the showers. Visibility very good, but poor in showers.
How Cold? (at 750m)
2C
Freezing Level
Above the summits
Planning Outlook
Notably chilly for mid-May across the hills this week as air from the north-northwest prevails. Frequently near or below freezing over Scottish Munros, and at times dropping to freezing on high tops in England and Wales. Wind speed will vary, but increasing at times to gale force on hills, giving significant chill factor. Broadly showery, heavy bursts with hail and thunder in places, also often falling as snow on higher mountains, at least in Scotland, intermittently elsewhere. Some more persistent precipitation especially northwest Scotland. Also some drier windows - varying locally day-to-day - away from showers cloud will lift above hills and visibility will be very good. Less windy and fewer showers suggested by next weekend into early next week.