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
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Hazy, some fog banks
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Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Hazy, some fog banks
Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Viewing Forecast For
Brecon Beacons
Sunday 4th October 2026
Last updated
Sat 3rd Oct 26 at
1:30PM
Summary for all mountain areas
A weakening warm front will gradually bring low cloud to western hills of NW England and Wales. Blustery N England. In Scotland, widespread gales; in the NW & W Highlands, heavy rain and fog, but only occasional rain eastern and southern Scottish mountains.
Headline for Brecon Beacons
Low cloud slowly shrouding mainly west Wales. Light wind.
How windy? (On the summits)
Southwest to westerly, 10mph
Effect of the wind on you?
Negligible
How Wet?
Rain not expected
Small risk isolated fine drizzle Preseli and Cambrian range.
Cloud on the hills?
Risk patches fog on slopes nearest Cardigan Bay
Timing of low cloud slowly penetrating inland from Cardigan Bay uncertain. Probably in morning shrouding Cambrian range and possibly Preseli above 200 to 400m, lowest nearest the coast. Patches above 500m will slowly extend further east afternoon, but not reach E Wales.
Chance of cloud free summits?
Dropping to 10% west; 80% east Wales
Sunshine and air clarity?
Sunshine will tend to become confined to east Wales. Mostly very good or excellent visibility
How Cold? (at 750m)
13C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Monday 5th October 2026
Last updated
Sat 3rd Oct 26 at
1:30PM
How windy? (On the summits)
Southwesterly typically 15, perhaps 20mph Cambrian range.
Effect of the wind on you?
Small.
How Wet?
Substantially or completely dry.
Risk drizzle occasionally western slopes Cambrian range and SW Wales. Elsewhere isolated if any drizzle.
Cloud on the hills?
Fog possible higher western areas
Confidence low: Very low cloud may continue to drift in off Cardigan Bay, shrouding even lower slopes Cambrian and perhaps Preseli. Elsewhere, patches low cloud probably breaking completely by midday or early afternoon.
Chance of cloud free summits?
70%
Sunshine and air clarity?
There may be patchwork of sun and excellent visibility southeast Wales. Westward increasingly cloudy or dull and misty.
How Cold? (at 750m)
14C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Tuesday 6th October 2026
Last updated
Sat 3rd Oct 26 at
1:30PM
How windy? (On the summits)
Westerly 15 to perhaps 20mph.
Effect of the wind on you?
Small.
How Wet?
Rain occasionally, mainly west Wales
Patches drizzly rain, mostly west Wales. Total rainfall small, and little if any reaching Black Mountains.
Cloud on the hills?
Blanket of fog on most hills
Fog across most hills, from 300 to 450m up. East of Cambrian range and north of A40 (through Brecon), most cloud above 500 to perhaps 700m.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Widely cloudy and in rain misty. Otherwise very good visibility.
How Cold? (at 750m)
12C.
Freezing Level
Above the summits.
Planning Outlook
Rain at some stage more or less daily on most mountain areas through the coming week. However, total rainfall small, and frequently dry E & S Wales and S Pennines. Frequently windy Scottish Highlands, whilst progressively southwards, periods of strong winds will less frequent. A brief period of colder less windy weather around the middle of next week brings snow showers to some northern mountains.