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.
Thursday'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.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Hot
Heatwave conditions. Very high temperatures, rising to 20C+ on high tops, approaching 30C in some valleys. Beware of heat stroke and dehydration. Carry plenty of liquid.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
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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.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Hot
Heatwave conditions. Very high temperatures, rising to 20C+ on high tops, approaching 30C in some valleys. Beware of heat stroke and dehydration. Carry plenty of liquid.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
Viewing Forecast For
Brecon Beacons
Thursday 9th July 2026
Last updated
Wed 8th Jul 26 at
4:20PM
Summary for all mountain areas
Warm-to-hot sun for most, risk of sunburn and dehydration. Early sea fog on low slopes near west coasts of England and Wales, may briefly lift but soon dissipating. Varied cloud western Scottish Highlands, mostly Mull to Skye, little or none eastward; high tops in and around Lochaber above the cloud layer.
Headline for Brecon Beacons
Hot sunshine; some early sea fog
How windy? (On the summits)
Variable direction less than 10mph; some sea breezes and upslope gusts may form.
Effect of the wind on you?
Negligible.
How Wet?
No rain expected
Cloud on the hills?
Hills clear
Coastal fog may affect lowest slopes near the sea, possibly also some scattered mist inland valleys at dawn, any early hill cloud soon clearing for cloud-free hills.
Chance of cloud free summits?
Nearly certain
Sunshine and air clarity?
Extensive sunshine, a little thin high cloud around. Visibility very good, some low-level haze.
How Cold? (at 750m)
16C rising to 22 to 24C afternoon warmest eastern hill groups. Valley temperatures locally approaching 30C.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Friday 10th July 2026
Last updated
Wed 8th Jul 26 at
4:20PM
How windy? (On the summits)
Southeasterly or variable, 10-15mph or less; variable gusts forming afternoon, including upslope in lower areas.
Effect of the wind on you?
Small.
How Wet?
Any rain unlikely
Late in the day, small chance of a very isolated spot of rain.
Cloud on the hills?
Hills clear
Chance of cloud free summits?
Practically certain
Sunshine and air clarity?
Strong sunshine, some thin high cloud, fair weather cloud building afternoon. Visibility good but some haze.
How Cold? (at 750m)
20C at dawn, rising to 25C, very warm (valleys approaching 30C+) and rather humid especially west and south.
Freezing Level
Above the summits.
Viewing Forecast For
Brecon Beacons
Saturday 11th July 2026
Last updated
Wed 8th Jul 26 at
4:20PM
How windy? (On the summits)
Northeasterly 10-20mph.
Effect of the wind on you?
Mostly small.
How Wet?
No rain expected
Cloud on the hills?
Hills clear
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Extensive sunshine, some thin high cloud, patchy fair weather cloud building afternoon. Very good visibility.
How Cold? (at 750m)
19 or 20C, rising to 23C, warmest on south slopes (valleys up to 29C).
Freezing Level
Above the summits.
Planning Outlook
Staying warm in Scotland, hot for England and Wales into the weekend. High pressure shifts northward, facilitating a strengthening easterly wind across most areas. Some lingering cloud and rain over the Scottish Highlands on Friday and Saturday, some risk of heavier thundery bursts on Friday. The weekend is likely dry across England and Wales with fairly extensive sun, some sea fog beginning to affect northeastern hill groups later weekend. Easterly wind will persist next week, sometimes quite strong England and Wales. Mostly sunny and quite hot, including Scottish Highlands. Low pressure south of the country may push showers into Wales, though confidence is low. Otherwise, this hot and dry pattern is likely to persist until late next week, at least.