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.
Hazy, some fog banks
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Visibility reduced around cloud banks, hazier on some lower slopes. Locally some improvements possible out of 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.
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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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.
Hazy, some fog banks
Visibility reduced around cloud banks, hazier on some lower slopes. Locally some improvements possible out of 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.
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
Monday 2nd February 2026
Last updated
Sun 1st Feb 26 at
4:26PM
Summary for all mountain areas
Strong and gusty east-southeasterlies, gale-force in places, speeds generally increasing over England & Wales with time. Snow frequent or persistent for eastern Scottish hills, rain lower ground; whiteout over higher areas with blanket cloud. Largely dry west coasts with higher and more broken cloud.
Headline for Eryri / Snowdonia National Park
Strong, gusty wind, becoming gales. Low cloud east, breaks west.
How windy? (On the summits)
Easterly 30-35mph, slightly less just up to dawn, generally strengthening through day to 40-45mph, or 50-55mph by dusk, with increasingly powerful gusts.
Effect of the wind on you?
Strenuous to increasingly arduous walking conditions, buffeting gusts knocking you off balance, not just on higher terrain, in places through high passes and downslope. Significant wind chill.
How Wet?
Spotty light rain
Occasional spots of light rain drifting from the south, mostly affecting southern and eastern hills, local snow grains highest tops. Slopes near Anglesey may stay dry all day.
Cloud on the hills?
Lowest and most persistent east, breaks west
Cloud covering much higher terrain above 500 to 700m inland, lowest bases east Wales to some lower slopes in morning. Higher bases westward with some breaks, slopes towards Cardigan Bay and Anglesey stay clearest.
Chance of cloud free summits?
40% lowering to 20% east
Sunshine and air clarity?
Glimpses of sun mostly west coastal areas, otherwise cloud, dull toward east. Generally good visibility west, poorer eastern hills.
How Cold? (at 900m)
Around 0C. Feeling like -12 to -15C in the wind.
Freezing Level
Close to freezing on higher tops above 900m; higher terrain frozen and icy. Dropping to 800m or slightly lower into evening.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 3rd February 2026
Last updated
Sun 1st Feb 26 at
4:26PM
How windy? (On the summits)
East to southeasterly 30 to 40mph, likely strongest morning; very gusty in places, locally to some lower slopes in west.
Effect of the wind on you?
Challenging conditions at least early in the day, frequent buffeting affecting balance; considerable wind chill.
How Wet?
Local sleet or hill snow
Patchy snow or sleet, risk more persistent mainly mid Wales. Rain or sleet up to 500-600m, or higher near west coast.
Cloud on the hills?
Fairly extensive, higher west
Covering most higher terrain, above 500-600m in east Wales, 600 to 800m further westwards, some breaks to upper slopes west of Snowdon/Yr Wyddfa group.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely overcast, dull, locally brighter toward west coast. Hazy, poor visibility in rain/snow.
How Cold? (at 900m)
0 or -1C, up to local +1C in west. Wind chill feeling like -7 to -10C.
Freezing Level
Varied, 500m particularly eastern areas, but further west locally just above freezing point to some upper slopes.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 4th February 2026
Last updated
Sun 1st Feb 26 at
4:26PM
How windy? (On the summits)
South to southeasterly 20 to 30mph, gusty in places.
Effect of the wind on you?
Blustery, in places affecting comfortable walking around the higher mountains, considerable wind chill.
How Wet?
Early rain fades
Overnight rain, some sleet or wet snow on highest tops, tending to fade during morning. Odd rain showers may follow.
Cloud on the hills?
Lowest in east, clearer west
Covering hills across east and mid Wales much of day, to some mid-slopes. Higher bases westwards, breaks toward some tops nearer to coasts.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Glimpses of sun may develop toward the west coast. Misty start east, visibility better west, mostly good below cloud.
How Cold? (at 900m)
1 or 2C, may rise slightly further. Wind chill feeling like -6 to -8C.
Freezing Level
Close to freezing on higher tops above 900m for a time, but likely lifting above freezing to all summits.
Planning Outlook
Easterly winds prevail this week, strong to gale force over many hills for sustained periods. Freezing levels will vary, but in the Highlands rarely above 800m away from the west coast, at times sub-zero from 400-500m upward. In England and Wales only occasionally dropping below 600m, and at times just above freezing to high tops. Further snow focused on eastern Scottish mountains, with additional accumulations and drifting; very little further west. Some periods of hill snow for England and Wales during midweek. Cold easterly patterns are expected to continue onward into mid February, though higher pressure to the north may see reduced precipitation amounts, always driest with highest cloud in west.