Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Monday'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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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.
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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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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
Monday 23rd February 2026
Last updated
Sun 22nd Feb 26 at
4:27PM
Summary for all mountain areas
Widespread gales, severe for several hours on higher terrain. Early showers from the west affect many hills, particularly Scotland where rain will be frequent; snow on high terrain. Rain slowly eases afternoon, then a warm front approaches Wales, brining more rain and rising temperatures here, spreading widely overnight.
Headline for Eryri / Snowdonia National Park
Gales; drizzle and cloud west, more widely afternoon
How windy? (On the summits)
Westerly 40 to 45mph, may reach 50mph on high exposed tops. Easing afternoon briefly to near 30mph, but soon strengthening again into evening/night.
Effect of the wind on you?
Arduous walking conditions much of day, most challenging in the morning with gusts necessitating crouching for balance in exposure. Significant wind chill.
How Wet?
Morning rain, a dry period, then setting in again
Persistently drizzly on western hills through morning, a few patches of rain reaching more widely. Many hills substantially dry for a few hours around midday. Rain then returns from the southwest afternoon, spreading widely but generally light.
Cloud on the hills?
Extensive low cloud west, spreading more widely afternoon
Likely to cover slopes facing Cardigan Bay all day from mid-elevations upward. Well-broken to the north and east for several morning hours, though lowering for periods. Through afternoon, becoming more widespread, to middle slopes by evening.
Chance of cloud free summits?
40%, lowering to 10%
Sunshine and air clarity?
Largely cloudy, hazy and increasingly murky west in rain. Some brighter moments in east with good visibility for a time.
How Cold? (at 900m)
2 or 3C from dawn, rising from afternoon onward, reaching 5 or 6C by sundown and rising slightly further overnight. Feeling like -10 to -13C directly in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 24th February 2026
Last updated
Sun 22nd Feb 26 at
4:27PM
How windy? (On the summits)
South-southwesterly 35 to 45mph, but may reach 50mph over high Snowdon group tops.
Effect of the wind on you?
Challenging conditions, frequent buffeting knocking you off balance in exposure. Considerable wind chill despite milder air.
How Wet?
Drizzle west
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, may improve
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, 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, murky toward Cardigan Bay, locally better visibility north and eastward.
How Cold? (at 900m)
4 to 6C. In exposure to wind, feeling like -7 to -10C.
Freezing Level
Above all summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 25th February 2026
Last updated
Sun 22nd Feb 26 at
4:27PM
How windy? (On the summits)
South-southwesterly 25-40mph, notable gusts including to lower slopes. Greatest risk of strong wind near coasts.
Effect of the wind on you?
Strenuous walking much of the day; some buffeting and notable wind chill. A risk of deteriorating conditions.
How Wet?
Some light rain
Drizzly rain often affects the high summits and upper slopes towards Cardigan Bay. With time, a risk of rain spreads more broadly, though the rain probably light.
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, a chance of clear summits early. May become more widely extensive with time.
Chance of cloud free summits?
40%, 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.
Planning Outlook
West to southwesterly winds prevail during the week ahead as areas of low pressure move toward northwest Scotland; regular rainfall here, most frequent and heavy over western mountains. Weak high pressure keeps the weather drier to the south and east early in the week. Sustained gales over the mountains, only brief lulls around mid-week. Temperatures rising into mid-week with freezing levels soon lifting off summits in England and Wales for substantial snow thaws. Some thawing in Scotland too. Later in the week, becoming more widely unsettled again with cooler temperatures, at times showery with hail, some snow on Scottish Munros. The final days of February favour colder northwesterly air and a drop of freezing level; a dry and bright spell is possible early weekend.