Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Saturday's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Winter sunshine
Bright sunshine most of the day with the mountains generally free of cloud. Snow cover on higher terrain.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Winter sunshine
Bright sunshine most of the day with the mountains generally free of cloud. Snow cover on higher terrain.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 28th February 2026
Last updated
Fri 27th Feb 26 at
4:03PM
Summary for all mountain areas
Fine and chilly for the Highlands, frosty morning; sunshine giving way to building cloud from southwest. Remnants of a front over England brings cloud, some rain, local showers with snow on hills. Much of Wales dry and bright. Light winds widely, then increasing S-SW'ly later, ahead of rain / hill snow into night.
Headline for Eryri / Snowdonia National Park
Chilly but soon bright with sun and clear hills; windier later.
How windy? (On the summits)
From dawn, northwest 20mph, turning westerly, may drop below 15mph for a time in morning. Into afternoon increasing southwesterly 20-25mph, then 30mph up to dusk, 35-40mph after dark.
Effect of the wind on you?
Fairly small effect on walking much of day, but noticeably chilly in exposure on tops. Tending to feel more blustery afternoon, starting to affect comfortable walking later.
How Wet?
Soon dry
Local brief showers in morning, snow flurries above 800m, soon fading. Into evening and night, rain moving in from west, some snow above 800m for a time.
Cloud on the hills?
Largely clearing
Cloud banks cover some higher slopes in morning, local varied patches lower down for a time, likely to soon lift and largely clear. Patches may return to high terrain up to dusk in west, lowering after dark.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Mostly good amounts of sun, some patchy cloud early in day. High cloud later in west. Visibility excellent.
How Cold? (at 900m)
0 or -1C, slight rise. Feeling like -5 to -7C in stronger breezes.
Freezing Level
800-900m rising slightly into afternoon.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 1st March 2026
Last updated
Fri 27th Feb 26 at
4:03PM
How windy? (On the summits)
South-southwesterly 35 to 50mph, downslope gusts to north/east. Trending towards higher speeds, 60mph by evening.
Effect of the wind on you?
Challenging walking most of the day; considerable buffeting, including lower slopes; feeling chilly.
How Wet?
Rain and drizzle most of day
Persistent drizzle mixed with periods of rain affect most mountains, wettest on slopes facing Cardigan Bay/Llyn Peninsula with a risk of extended steadier rain. Driest around Carneddau/Berwyn groups.
Cloud on the hills?
Extensive, lowest west
Covering many mountains all day, from 300-500m upward near Cardigan Bay, often extensive above 600-800m inland, highest breaks toward and north of Ogwen, also Bala and Berwyn areas.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Overcast and dull west; best chance of glimpses of sun north and east. Good visibility locally north/east areas, but murkier west, a haze towards the sea.
How Cold? (at 900m)
4 or 5C. Feeling like -8 to -10C in strongest wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 2nd March 2026
Last updated
Fri 27th Feb 26 at
4:03PM
How windy? (On the summits)
South turning southwest later westerly; speed likely to vary markedly, in range 20 to 35mph, risk stronger at first.
Effect of the wind on you?
Risk of blustery conditions affecting ease of walking for periods, possibly more difficult around dawn.
How Wet?
Rain and drizzle fading
A band of rain early in the day, may persist for a few hours, tending to ease off and break up from west, some uncertainty of timing, to leave increasingly dry conditions. By evening-night, possible showers.
Cloud on the hills?
Fairly extensive, then lifting and breaking
Covering many hills early in day, varied banks to some lower slopes for a few hours, higher bases north. Tending to gradually rise with some breaks, possibly more widely onward through afternoon.
Chance of cloud free summits?
10% rising to 50%
Sunshine and air clarity?
Cloudy possibly much of day, but some brighter skies and glimpses of sun may emerge from west. Visibility poor in rain, improving to become very good if dry.
How Cold? (at 900m)
3C, dropping into night to 1C. If exposed to stronger wind, risk feeling like -5 to -8C early in day.
Freezing Level
Above the summits all day, then dropping close to freezing on highest tops after dark.
Planning Outlook
A changeable southwesterly regime onward into early next week. Milder air and thawing into Sunday, accompanied by rain and upland gales. A drop of freezing level onto higher mountains develops during Monday into Monday night; weakening fronts bringing some precipitation, but fading. Higher pressure nearby and commonly drier conditions during early March, though an occasional front coming in from the west may bring some rain later in the week ahead. Varied wind speeds, extensive lulls mixed with some windier days. Milder air is likely to return from the south more often.