Includes all summits in the the northern half of Wales from Pumlumon northwards.
Eryri / Snowdonia National Park
Thursday 31st July 2025
Last updated
Wed 30th Jul 25 at
4:12PM
Showery rain in Scotland tends to ease, cloud increasingly clearing tops of central and southeast highlands. Morning cloud and patchy rain in south Scotland and England tends to improve as well; afternoon showery outbreaks from Cheviots down the eastern Pennines. Wet and dull in Wales, improving afternoon.
Morning rain, then dry; cloud lifts, some higher breaks
West to northwesterly 20 to 25mph. Trending northerly and increasing into evening, 30mph or higher over tops.
Starting to affect balance and comfortable walking in places on exposed tops and ridges, increasingly into evening.
Morning rain, breaking into occasional showers
Risk of fairly persistent rain from dawn into morning with heavy bursts. Quickly breaking into isolated showers afternoon, tending to be isolated to slopes near coasts.
Extensive, lifting with some breaks, best south and east
Covering the hills widely at dawn, bases down to lower slopes on coastal-facing hills. Bases rising to upper slopes with breaks forming, best south and east. High tops may see clear spells, though cloud caps regularly come and go.
30%, rising to 60%
Bursts of sun developing, clouding over at times. Visibility reduced in rain, becoming very good away from showers.
10C most of the day, slightly warmer east and mid-Wales. Slightly warmer at and before dawn.
Above the summits
Eryri / Snowdonia National Park
Friday 1st August 2025
Last updated
Wed 30th Jul 25 at
4:12PM
Northwesterly 25 to 30mph, occasional stronger breezes over tops, notably early in the day.
Affecting comfortable walking and balance on some higher exposed tops and ridges. Considerable wind chill.
Showers
Showery rain most frequent near north-facing coasts in the morning, some showers pushing increasingly inland, tending to fade with time.
Covering tops, some improvement
Covering higher areas fairly widely above 700-800m in morning, locally 600m or lower for a time toward north and near Llyn peninsula. Tending to rise and break toward upper slopes in afternoon, but patches may come and go high tops.
50%
Glimpses of sun, most sun near coast in afternoon. Visibility becoming very good away from showers, slight coastal haze.
6C rising to 8 or 9C. Feeling below freezing in the wind, nearer -5C in morning higher tops.
Above the summits
Eryri / Snowdonia National Park
Saturday 2nd August 2025
Last updated
Wed 30th Jul 25 at
4:12PM
Northwesterly 15-20mph - tending to be stronger and gusty over high tops.
Walking at times impeded during gusty spells, stability may be briefly challenged on exposed high terrain.
Little or no rain
Chance of fleeting spots of drizzly rain onto northern and western slopes in the morning. Fading for a dry day.
Rising and breaking, increasingly off tops
Patchy cloud at various heights above 600m in the morning, possibly more extensive on northwest aspects. Tending to rise and dissipate as the day goes, high tops increasingly out of cloud.
40%, rising to 80%
Mostly sunny, gradually weakened as patchy high cloud builds through afternoon. Excellent visibility, some haze near coasts later.
8C rising to 11C - windward coastal slopes will be slow to rise. Temperatures staying elevated overnight.
Above the summits
Westerly winds prevail in the extended outlook, though the weather will be changeable. Heavy rain and strong wind is expected Saturday night and Monday, though detail remains uncertain currently. High pressure will bring a brief settled spell around midweek with a mix of cloud and sun, then occasional low pressure systems come and go - western mountains often shrouded in cloud with periods of rain, at times heavy. Some cloud and rain drifts east, mostly in Scotland. Variable winds too, at times quite blustery. Temperatures near average, variably cooler north. Ridges of higher pressure will build occasionally from the southwest for better windows of weather, particularly England & Wales.