Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Today's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Snow flurries
Occasional light snow flurries, sleet or rain lower elevations. Amounts little more than nuisance value, but locally more persistent and reducing visibility for periods.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Winter kit required on higher terrain
Snow cover over higher mountains. Safe progress over some terrain will require suitable footwear - possibly crampons and ice-axe where necessary.
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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Snow flurries
Occasional light snow flurries, sleet or rain lower elevations. Amounts little more than nuisance value, but locally more persistent and reducing visibility for periods.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Winter kit required on higher terrain
Snow cover over higher mountains. Safe progress over some terrain will require suitable footwear - possibly crampons and ice-axe where necessary.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 7th January 2026
Last updated
Tue 6th Jan 26 at
4:20PM
Summary for all mountain areas
Gale-force NW'ly winds England, Wales and S Scotland, slowly lessen from west. Areas of snow falling over N & E Scotland tends to ease and become patchy. A few showers or flurries elsewhere, but largely dry SW Highlands. Much terrain remains frozen, substantial snow depths much of Highlands.
Headline for Eryri / Snowdonia National Park
Windy, gales at first. Flurries on hills fade.
How windy? (On the summits)
Northwesterly 40mph with stronger gusts around dawn, lessening gradually during day, 25-30mph into afternoon, shifting westerly. Lower speeds into evening, then an increase into night to around 25mph.
Effect of the wind on you?
Be prepared for considerable wind chill on exposed high terrain all day; challenging conditions early in day, slowly improving, but remaining blustery into afternoon.
How Wet?
Patchy snow showers over hills fade
Showers feeding inland from coasts in morning, falling as snow on hills, rain or sleet lower slopes, fading afternoon; less precipitation in eastern areas. Into night, some sleet or rain moving in from west.
Cloud on the hills?
Varied over higher slopes
Cloud banks likely to come and go over higher tops, may often cling around some slopes, mostly western areas, but some breaks to tops inland and east Wales during the daytime.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Mix of cloud and sun, some high cloud moving in from west later. Visibility very good whilst dry.
How Cold? (at 900m)
-2C, tending to rise mainly after dark. Feeling like -15C if exposed to stronger wind in morning, still near -10C afternoon.
Freezing Level
Slight frost inland valleys at first. Otherwise 600m, or slightly higher nearest coasts, but icy surfaces likely.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 8th January 2026
Last updated
Tue 6th Jan 26 at
4:20PM
How windy? (On the summits)
Westerly at first 20mph, soon often less, variable direction. Becoming easterly by dusk, rapidly 30-50mph evening.
Effect of the wind on you?
Mostly small during daylight. Deteriorating quickly into the evening.
How Wet?
Patchy light snow, risk heavier after dark
Occasional snow flurries on tops, sleet or rain to mid-slopes. Toward evening and into night, increasing risk of persistent and heavier snow developing to lower elevations.
Cloud on the hills?
Varied cloud and fog
Patchy cloud around some higher tops, possible fog some valleys also. Later cloud banks developing more widely over hills.
Chance of cloud free summits?
50%
Sunshine and air clarity?
High cloud thickening across the sky. Visibility very good in morning, possible haze or mist lower down.
How Cold? (at 900m)
-1 or -2C.
Freezing Level
700 to 800m, partly frozen terrain lower down, slight frost from dawn inland valleys. Toward evening dropping to 200-400m.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 9th January 2026
Last updated
Tue 6th Jan 26 at
4:20PM
How windy? (On the summits)
North to northwesterly 25 to 40mph, risk over 50mph up to dawn at least.
Effect of the wind on you?
Considerable wind chill and affecting ease of walking on exposed terrain; risk more challenging early in day.
How Wet?
Snow fading, local showers
Scope for considerable fresh lying snow from valleys upward inland following overnight falls, which may continue as light snow into the morning, turning to sleet or rain lower slopes, breaking into showers.
Cloud on the hills?
Fairly extensive, rising to tops
Shrouding most higher areas in the morning, banks of cloud mid-slopes up in places. Tending to lift to higher slopes, but often capping tops in north and west.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely cloudy, rare if any sun due to a veil of high cloud. Difficult navigation if in fog over snow cover, visibility may improve with time away from showers.
How Cold? (at 900m)
-2 or -3C. Feeling like -10C if exposed to stronger winds.
Freezing Level
500 to 600m, but terrain partly frozen into valleys inland in the morning, where snow cover may persist.
Planning Outlook
Terrain remaining widely frozen into the weekend, extensive deep snow cover for Highlands, less nearer the central belt. An additional substantial snowfall for Wales & Peak District on Thursday night, accompanied by gales. A fairly benign end to the week for Scotland, showers near some west coasts. By late Saturday into Sunday, southerly winds strengthen to gales - as a frontal system approaches, snow then freezing rain is likely, before at least a temporary rise of freezing level - some thawing develops on lower terrain, most pronounced in Wales toward higher slopes. Chilly patterns next week with some further hill snow, many mountains often sub-zero, but overall less cold.