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
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
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Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Brecon Beacons
Sunday 9th November 2025
Last updated
Sat 8th Nov 25 at
4:30PM
Summary for all mountain areas
A swathe of rain advances eastwards across all regions during the day, heaviest over south-facing hill groups, patchier northwards across the Highlands, breaking up with time in the west, leaving a few showers, rising cloud bases. Windy, up to gale force high tops, most sustained in Wales.
Headline for Brecon Beacons
Upland gales. Heavy rain, fading only later.
How windy? (On the summits)
South to southwesterly 35-45mph winds passes west to east through the day, risk 50mph over tops. May ease slightly from the west later.
Effect of the wind on you?
Difficult conditions with considerable buffeting and wind chill. May ease later though remaining strenuous.
How Wet?
Rain from the west gradually sets in widely
Frequent rain soon arrives from the west, spreading east and becoming widely persistent for much of the day. Heaviest rain on south-facing slopes. Starting to break up in afternoon from west.
Cloud on the hills?
Extensive
Extensive across west and southern slopes down to middle or lower elevations all day. Higher east at first; bases soon lowering widely in rain.
Chance of cloud free summits?
Soon widely less than 10%
Sunshine and air clarity?
A few bright periods on northern slopes where visibility will be good, but elsewhere foggy and dull.
How Cold? (at 750m)
8C. Feeling like -3C in strongest direct wind.
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Monday 10th November 2025
Last updated
Sat 8th Nov 25 at
4:30PM
How windy? (On the summits)
South-southwesterly 15-25mph. A risk of more variable and possibly stronger afternoon wind though confidence is low.
Effect of the wind on you?
Likely only fairly small
How Wet?
Showers from the south
Intermittent showers drift onto southern slopes much of the day, which may become heavy. A risk of merging into a broader area of heavy rain, though confidence is low.
Cloud on the hills?
Intermittently covering high terrain
Banks of cloud come and go with showers, mostly above 600-700m. Clear periods on tops will occur between showers. Cloud may fill in more extensive at times if broader areas of rain pass, though detail is uncertain.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Intermittent sunshine, a risk of trending overcast. Excellent visibility.
How Cold? (at 750m)
6 or 7C
Freezing Level
Above the summits
Viewing Forecast For
Brecon Beacons
Tuesday 11th November 2025
Last updated
Sat 8th Nov 25 at
4:30PM
How windy? (On the summits)
Southerly, strengthening rapidly overnight up to dawn, 40 to 60mph much of day, strongest gusts toward western tops.
Effect of the wind on you?
Difficult walking conditions higher terrain, powerful gusts knocking you off your feet. Marked wind chill despite mild air.
How Wet?
Rain often heavy
Several hours of constant rain from dawn, heavy west and south, may then fade to lighter rain and drizzle, but later a risk of prolonged heavier rain setting in again.
Cloud on the hills?
Extensive, lowest south
Blanket low cloud across the hills, from lower slopes up in southern areas. Highest bases to 500-600m eastern mid Wales.
Chance of cloud free summits?
Below 10%
Sunshine and air clarity?
Overcast and murky.
How Cold? (at 750m)
Rising from before dawn to 6C, soon up to 9C; only small fall with height. Feeling like -5C directly in the wind.
Freezing Level
Above the summits
Planning Outlook
A cloudy and wet week ahead as several low pressure cores draw frontal systems across the British Isles. Rain at times extensive and heavy, streams in spate with a risk of flooding, primarily western mountains. Winds start fairly light but soon increase with gales becoming widespread by Tuesday, which may persist for several days. Temperatures remain mild until later in the week when cold air begins pushing into northern Scotland - timing and extent of the arrival of cold air remains uncertain but high terrain of Scotland and possibly northern England may start to see more snow around or after next weekend.