Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Tuesday's Forecast
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
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.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Click an icon for more information or click here for a key to all icons.
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
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.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 24th February 2026
Last updated
Mon 23rd Feb 26 at
3:58PM
Summary for all mountain areas
Widely windy, gales over high terrain and more widely Scottish Highlands. Most rain in northwest Scotland with extensive coastal cloud, some drizzle on other high northwestern terrain with low cloud, most persistent on south/west aspects. Largely dry central and east areas, early low cloud, sun breaks with time.
Headline for Eryri / Snowdonia National Park
Very windy, gales in exposure; most cloud west, some drizzle
How windy? (On the summits)
Southwesterly 35 to 40mph, but strong gusts may reach 45mph+ over high Snowdon group tops. A southerly trend with time and wind easing slightly in east Wales.
Effect of the wind on you?
Challenging conditions, frequent buffeting in exposure necessitates constant effort to maintain balance; considerable wind chill despite milder air. May improve slightly, greatest chance east.
How Wet?
Mostly dry, some drizzle west
Spotty drizzle mostly areas toward west of Yr Wyddfa / Snowdon group and onto Llyn peninsula. Damp where in cloud elsewhere. Drier east Wales.
Cloud on the hills?
Most persistent west coast, some improvement
Low cloud likely to cover west coastal areas, to some lower slopes. Mostly above 700m north from Ogwen and eastern hills. A chance of improvement afternoon, lifting bases with breaks near or to summits north and east.
Chance of cloud free summits?
20% rising to 50%
Sunshine and air clarity?
Largely cloudy in the morning, murky toward Cardigan Bay, locally better visibility north and eastward. With time, improving more widely with good sun breaks in the afternoon though some haze.
How Cold? (at 900m)
3 or 4C from dawn, rising to 6C. In exposure to wind, feeling like -5 to -8C.
Freezing Level
Above all summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 25th February 2026
Last updated
Mon 23rd Feb 26 at
3:58PM
How windy? (On the summits)
South-southwesterly 30-40mph, notable gusts including lower slopes. Greatest risk of strong wind near Anglesey.
Effect of the wind on you?
Strenuous walking much of the day; wind chill and notable buffeting, strongest gusts challenging stability.
How Wet?
Some light rain
Drizzly rain often affects the high summits and upper slopes towards Cardigan Bay. With time, a risk of rain arrives from the west, becoming more widespread into evening.
Cloud on the hills?
Fairly extensive western slopes
Extensive fog from middle elevations up on slopes facing Cardigan Bay, from Yr Wyddfa (Snowdon) south to Penygader. Higher bases Carneddau and Berwyn groups, some chance of clear summits early. More widely extensive with time.
Chance of cloud free summits?
30%, lowering with time.
Sunshine and air clarity?
Bright/sunny breaks for a time to the north and east. Good visibility where out of cloud and rain though some haze.
How Cold? (at 900m)
6 or 7C. Feeling near or just below freezing in direct wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 26th February 2026
Last updated
Mon 23rd Feb 26 at
3:58PM
How windy? (On the summits)
Southwesterly 35-45mph. A risk of speeds reaching 50mph for periods in the afternoon.
Effect of the wind on you?
Strenuous-to-arduous walking all day, most powerful wind requiring bracing/crouching for stability; significant wind chill.
How Wet?
Rain on-and-off
Periods of rain come and go through the day, often patchy and light Carneddau and Berwyn groups. Between pulses of rain, spotty rain in the wind continues to affect slopes facing Cardigan Bay.
Cloud on the hills?
Extensive over high terrain, lowest west
Fog shrouds high summits likely all day, the lowest bases on slopes facing Cardigan bay, often to 700m and at times lower. Patchier with higher bases to the east and Carneddau, small chance of breaks towards summits here during drier periods.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Often cloudy, though a period of brighter skies/sun breaks is possible. Mixed visibility, good out of fog/rain, but a haze towards the sea.
How Cold? (at 900m)
3 or 4C. Feeling like -8 to -10C in the wind.
Freezing Level
Above the summits.
Planning Outlook
West to southwesterly winds prevail from mid-week into the weekend as areas of low pressure move toward northwest Scotland; regular rainfall here, most frequent and heavy over western mountains. Bands of rain from the west also affecting England and Wales. Milder temperatures from mid-week with freezing levels above all summits for a few days, substantial thawing to the summits in England and Wales, some high slope thawing in Scotland too. Extensive gales, only a brief easing on Wednesday, then soon unsettled again with cooler temperatures returning, showery west with bands of rain passing east, some snow on Scottish Munros. Some drier, brighter weather is possible over the weekend, though interruptions by bands of rain are likely with low confidence in detail.