Brecon Beacons
Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.
Viewing Forecast For
Brecon Beacons
Thursday 24th June 2021
Last updated
Wed 23rd Jun 21 at
4:35PM
Summary for all mountain areas
A damp atmosphere shrouds most west coastal hills in fog to lower slopes in morning. Some breaks forming for England, Wales & eastern Scotland. Rain heavier in middle of the day in western Scotland, spreading later to NW England and N Wales.
Headline for Brecon Beacons
Mostly dry, wind fairly light. Cloud breaks best east.
How windy? (On the summits)
North turning northwest later westerly, 10-15mph, tending to strengthen to 20mph afternoon, locally 25mph higher tops by evening.
Effect of the wind on you?
Fairly small, but likely to impede ease of walking on high tops later in day.
How Wet?
Mainly dry; risk of a little rain
Often dry. Local pockets of drizzle or the odd shower possible. By evening into night, increasing risk of steadier rain arriving from the west.
Cloud on the hills?
Most persistent west Wales
Risk of persistent low cloud on western hills near Cardigan Bay, including Preseli hills. Further east, higher cloud, some breaks, but risk of lowering cloud enveloping many hills from west.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Occasional sun mainly east Wales. West Wales mostly dull and misty, but eastern areas may keep very good visibility.
How Cold? (at 750m)
13C, rising marginally middle of day; but will then fall gradually into the night toward 6C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 25th June 2021
Last updated
Wed 23rd Jun 21 at
4:35PM
How windy? (On the summits)
Southwesterly 15 to 25mph, becoming variable, speeds may fall light later in day.
Effect of the wind on you?
Some buffeting on exposed higher terrain, may tend to ease.
How Wet?
Rain or thundery showers
Some uncertainty: Rain arriving in the early hours likely to persist well into the daytime, risk of steady heavy falls for many hours. May gradually break up, only to be replaced by slow-moving heavy showers, risk thunder.
Cloud on the hills?
Fairly extensive
Blanket low cloud likely to shroud the mountains most or all day, to lowest slopes near west coast. Some breaks may occur above 600m in east Wales if rain fades away for sustained periods.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Generally cloudy, very murky around rain. Occasional improvements.
How Cold? (at 750m)
8 to 10C, coolest toward evening.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 26th June 2021
Last updated
Wed 23rd Jun 21 at
4:35PM
How windy? (On the summits)
Easterly 15 to 25mph.
Effect of the wind on you?
Fairly small, but locally blustery and gusty through passes to some lower slopes.
How Wet?
Drizzly rain may linger
Areas of drizzle or light rain may come and go through the day, particularly east Wales. Hills toward the west may see very little.
Cloud on the hills?
May persist higher slopes
Risk of extensive low cloud across the hills in the morning, to some lower slopes. Gradually cloud bases will lift away from rain, with breaks forming to 600-800m, best in west Wales, but higher tops may struggle to clear.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Mostly cloudy, dull for periods, but visibility very good away from rain.
How Cold? (at 750m)
9C rising to 13C.
Freezing Level
Above the summits
Planning Outlook
Low pressure drifts slowly southwards across Britain through Friday into the weekend, followed by improving conditions from the north as pressure builds. Residual areas of rain, drizzle and low cloud may affect Wales, the Pennines and perhaps eastern Scotland through the weekend, whilst west & northwest Scotland become fine and increasingly warm. Most indications favour high pressure influencing Britain into next week, bringing mainly dry and warm weather. Despite some rain this week, most mountain areas will remain very dry underfoot: beware of the risk of fire.