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.
Today's Forecast
Dry and sunny
Extensive strong warm sunshine. The mountains free of cloud once any early mist patches disperse.
Warm
Comfortable temperatures on the hills, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
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Dry and sunny
Extensive strong warm sunshine. The mountains free of cloud once any early mist patches disperse.
Warm
Comfortable temperatures on the hills, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Viewing Forecast For
Brecon Beacons
Thursday 16th January 2025
Last updated
Wed 15th Jan 25 at
4:30PM
Summary for all mountain areas
Almost all mountains cloud free but low level fog coming in off the south and west coasts and rolling up some coastal uplands and mountains. Many summits warmer than their mid-slopes. Sudden increase of wind with height; very gusty gales in the Highlands. Hazy low down in some areas; superb visibility from high ground.
Headline for Brecon Beacons
Dry and sunny with a cool upland breeze
How windy? (On the summits)
Southerly 15 to 20mph. Strongest west Wales in the afternoon; may reach 25mph Cambrian range.
Effect of the wind on you?
Fairly small.
How Wet?
Rain not expected
Cloud on the hills?
Moving in to the Brecon Beacons in the afternoon; summits remaining clear
Clear start with some valley fog to the south of Bannau Brycheiniog/Brecon Beacons NP. Cloud will increasingly move in from the south in the afternoon, enveloping the lower southern slopes and gradually rising to 600m. Higher summits staying out of cloud. Very little cloud expected in mid-Wales.
Chance of cloud free summits?
90% dropping to 70%
Sunshine and air clarity?
Extensive bright sunshine and higher up excellent visibility but haze and cloud will gradually extend northwards.
How Cold? (at 750m)
8 to 10C but marginally cooler on the mid-slopes. Feeling below 5C in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 17th January 2025
Last updated
Wed 15th Jan 25 at
4:30PM
How windy? (On the summits)
Probably light and variable direction but could be south or southwesterly 15mph, or even 20mph. Highest speeds morning.
Effect of the wind on you?
Often small but risk that there may be sudden gusts at times, especially in the morning. Marked wind chill on mid-slopes.
How Wet?
Risk of drizzle near south coast
Little or no rain for much of the area. Risk of drizzle near the south coast, particularly Bannau Brycheiniog/Brecon Beacons NP.
Cloud on the hills?
Lower coastal slopes shrouded
Extensive cloud on lower slopes facing the coasts. May extend to the summits but the summits likely above the cloud deck. Clouds more broken inland in mid-Wales.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Very clear air and bright sunshine if above the cloud deck. Poor visibility and hazy low down.
How Cold? (at 750m)
Possibly as high as 7C, but mid and lower slopes will be colder at around 5C. Feeling around -5C on the mid-slopes in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 18th January 2025
Last updated
Wed 15th Jan 25 at
4:30PM
How windy? (On the summits)
Southerly 10 to 15mph, may be variable in direction.
Effect of the wind on you?
Small.
How Wet?
Small risk of localised drizzle
Risk of drizzle on the lower southern slopes of the Bannau Brycheiniog/Brecon Beacons NP.
Cloud on the hills?
Probably very little on high ground
Cloud may fill in valleys and low ground in the southern Bannau Brycheiniog/Brecon Beacons NP. High ground likely to be largely cloud free.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Extensive sunshine on high ground. Hazy low down but superb visibility from near the summits.
How Cold? (at 750m)
4 to 8C, depending on height and extent of inversion. Potentially feeling cooler on lower slopes.
Freezing Level
Above the summits but near or below freezing on lower ground initially.
Planning Outlook
Rain moving in some areas from the west on Sunday and Monday before high pressure starts building again and suppressing any rainfall to pockets of drizzle. Conditions may become gloomy low down as cloud is trapped below inversion; summits likely to remain clear with superb visibility. Freeze-thaw cycles will resume on the Scottish mountains though next week.