Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Thursday'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.
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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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.
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
Thursday 29th January 2026
Last updated
Wed 28th Jan 26 at
4:11PM
Summary for all mountain areas
Freezing temperatures in Scotland and England; freezing level lowering with time to middle slopes, first in eastern hill groups. Blustery as well, gale force gusts on high terrain of Scotland and Wales. Snow flurries affecting eastern Scotland and the Pennines, mostly dry Lakeland to west Scottish Highlands.
Headline for Eryri / Snowdonia National Park
Very windy, gales later; mostly dry, least cloud north and west
How windy? (On the summits)
Southeasterly 35 to 45mph, stronger gusts in places through elevated passes and downslope west of higher tops. Trending towards the higher speeds in the range with powerful gusts, reaching 55mph.
Effect of the wind on you?
Challenging walking on exposed higher terrain, buffeting gusts constantly challenging balance, not just on the highest terrain. Significant wind chill.
How Wet?
A little rain or hill snow, mostly east
Patchy rain, falling as sleet or snow above 800m, most common Bala to Berwyn. Only patchy spots west, amounting to very little, the greatest risk here later in the day. Rain more widely after dark with snow on the tops.
Cloud on the hills?
Fairly extensive, breaks northwest
Covering many hills, lowest and most persistent eastern areas, mostly shrouded to middle slopes. Higher bases on slopes nearest to coasts, some breaks above 800m north/west of Yr Wyddfa (Snowdon).
Chance of cloud free summits?
30%
Sunshine and air clarity?
Fairly cloudy, some brighter moments toward northwest, where visibility good if. Mostly hazy east and towards mid-Wales, poorer if in rain/snow.
How Cold? (at 900m)
0 or -1C, locally higher on western slopes, 1C on some hills. Wind chill feeling like -12 to -15C.
Freezing Level
Variable, 700m in east, but just above freezing to some slopes above 900m further west.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 30th January 2026
Last updated
Wed 28th Jan 26 at
4:11PM
How windy? (On the summits)
South to southeasterly 25 to 40mph, may ease during daytime, but then risk increasing again later.
Effect of the wind on you?
Some blustery areas, for a time affecting ease of walking and balance, considerable wind chill; may be fairly small for a period.
How Wet?
Risk a little rain, dry periods likely
Patchy rain, some snow on higher tops above 800-900m, amounts small. Several hours at least may remain dry in the afternoon.
Cloud on the hills?
Low cloud east, clearer west at times
Low cloud most likely across hills from Berwyn to Bala groups, higher bases and more broken westwards, may be largely clear some hills toward west coast though a risk of banks returning to high terrain.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Cloudy and dull or murky eastern hills, but much better westwards, some sun, best chance toward coast and Anglesey.
How Cold? (at 900m)
1 or 2C. Wind chill feeling like -7C early in day.
Freezing Level
1000m or just above.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 31st January 2026
Last updated
Wed 28th Jan 26 at
4:11PM
How windy? (On the summits)
Detail uncertain: generally west-southwesterly 15-30mph, though variable, particularly early.
Effect of the wind on you?
Often fairly small, but feeling blustery in exposure - confidence in timing and extent of effects is currently low.
How Wet?
Intermittent-to-frequent rain
Periods of rain will come and go through the day, falling as sleet onto high terrain.
Cloud on the hills?
Most extensive early, improving from south
Cloud shrouds the high terrain of Eryri NP (Snowdonia) most of the day, extensively to middle slopes early. A lifting trend with time from the south, some breaks to high slopes or summits in mid-Wales.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Cloudy to start, glimpses of sun breaking out with time. Mixed visibility, good out of rain.
How Cold? (at 900m)
1C, may rise a degree late in the day.
Freezing Level
Likely just highest summits, may variably lift off the summits.
Planning Outlook
Slow-moving weather patterns and a broadly similar regime to recent times over the next week or so: periods of precipitation will affect most mountains at least every few days. Scottish Munros generally below freezing point, with snow cover and drifts most substantial from the Cairngorms to central and southern Highlands, some additional falls in the week ahead (with continued flooding risk too); much less northwestward. Hills in England and Wales will see varying freezing levels, at times dropping sub-zero to middle slopes, but largely isolated to the high terrain of Lakeland and Eryri NP (Snowdonia). Wind speed will vary, some periods of lower speeds than recently, though gusty SE'ly winds remain common in the Highlands. Scope for widely colder conditions toward mid February.