Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Sunday'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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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
Sunday 22nd February 2026
Last updated
Sat 21st Feb 26 at
4:00PM
Summary for all mountain areas
Showery southwesterlies, extensively gale force over higher terrain with significant chill factor. Rain and hail, snow falling above 900m in Scotland, most frequent west coastal areas. Fewer showers eastward across Scotland and for England & Wales, with some cloud breaks toward tops.
Headline for Eryri / Snowdonia National Park
Windy, gales on tops. Showers mostly west.
How windy? (On the summits)
Southwesterly 35 to 45mph, frequent squally gusts in showers, over 50mph on higher tops, tending to strengthen.
Effect of the wind on you?
Challenging conditions over higher terrain, frequent buffeting making walking arduous in exposure. Significant wind chill.
How Wet?
Occasional showers
Remnants of overnight rain leaving some showery rain around dawn. Then a few showers, most common toward west coast, briefly heavier. Toward dusk into evening, greater risk more frequent heavier showery rain.
Cloud on the hills?
Often covering higher areas
Covering western mountains above 700-800m most of the time, briefly lowering around showers. Occasional breaks higher up, best well inland and east.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Glimpses of sun, mostly toward east. Visibility at times very good, but reduced to occasionally poor in showers.
How Cold? (at 900m)
3C. Wind chill feeling like -10 to -13C on tops.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 23rd February 2026
Last updated
Sat 21st Feb 26 at
4:00PM
How windy? (On the summits)
Southwesterly 35 to 45mph, lowest speeds likely middle of day, then increasing again up to 50mph toward dusk.
Effect of the wind on you?
Arduous walking conditions much of day, gusts knocking you off balance in exposure. Significant wind chill.
How Wet?
Rain may set in west
Rain on and off, persistently drizzly at least western hills, but likely setting in for more constant rain for several hours during day.
Cloud on the hills?
Extensive low cloud
Likely to cover the mountains all day from mid-elevations upward, or lower toward west coast. Some breaks above 700m well inland and mainly further east.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Largely cloudy, hazy or increasingly murky west in rain. Some brighter moments in east with good visibility for a time.
How Cold? (at 900m)
3C, rising slightly afternoon onward. 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
Sat 21st Feb 26 at
4:00PM
How windy? (On the summits)
Southwesterly 40 to 50mph.
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
Low cloud likely to cover west coastal areas, to some lower slopes. Mostly above 700m north from Ogwen and eastern hills.
Chance of cloud free summits?
20%
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.
Planning Outlook
West to southwesterly winds prevail during the week ahead as areas of low pressure move toward northwest Scotland whilst ridges of higher pressure occasionally nudge across southern Britain. Sustained gales over the mountains, only brief lulls. Temperatures will fluctuate above and below freezing on higher Scottish mountains, with periods of thaw and refreezing. England and Wales generally above freezing to tops with a substantial thaw of most upland snow. Frequent rainfall, often heavy over western mountains, 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.