Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Thursday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Snow and rain mix
Precipitation falling mostly as snow on higher terrain, rain on low-to-middle elevations, may turn to sleet or rain higher up.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Snow and rain mix
Precipitation falling mostly as snow on higher terrain, rain on low-to-middle elevations, may turn to sleet or rain higher up.
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
Thursday 9th April 2026
Last updated
Wed 8th Apr 26 at
4:04PM
Summary for all mountain areas
Rain passes east through Scotland from dawn, followed by colder air and heavy showers with snow on high terrain. The rain passes northwest parts of England and Wales through morning, reaching the Pennines and south Wales midday, clearing east for afternoon showers. Blustery, strong gusts around showers.
Headline for Eryri / Snowdonia National Park
Rain sets in, breaks into showers; blustery, strong gusts
How windy? (On the summits)
Westerly 25-30mph, southwesterly at dawn. Strengthening afternoon and becoming gusty, 30-40mph, with a northwesterly shift later.
Effect of the wind on you?
Strenuous walking in exposure most of the day with notable wind chill. Sudden strong gusts begin more often challenging balance in the afternoon.
How Wet?
Rain sets in for several hours, afternoon showers follow
Drizzle on the high slopes at dawn, rain setting in through morning for several hours, some local heavy falls. Breaking into showers afternoon, increasingly falling as snow, approaching 700m evening when showers begin to east.
Cloud on the hills?
Fairly extensive during rain, breaking through afternoon
Fairly extensive over high terrain in the morning, lowest bases in the west, to 400m during midday/afternoon rain. Lifting and breaking through afternoon, mostly above 800-900m with summit breaks, trending towards clearer conditions as evening approaches.
Chance of cloud free summits?
30%, rising to 60% as evening approaches
Sunshine and air clarity?
Mostly cloudy through morning with visibility turning poor in rain. Sunshine breaking out afternoon with very good visibility, though sudden deterioration when showers return.
How Cold? (at 900m)
5 or 6C from dawn, slowly cooling at first but later more sharply cooling, to 0C evening and further lowering overnight. Feeling like -10C in direct wind.
Freezing Level
Above the summits most of morning, lowering to the summits with time, reaching 900m around evening approaching 700-800m overnight.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 10th April 2026
Last updated
Wed 8th Apr 26 at
4:04PM
How windy? (On the summits)
Southwesterly 15mph at dawn, shifting southerly and gradually strengthening, 30-45mph by dusk, slow to rise east.
Effect of the wind on you?
Fairly small early, walking increasingly impeded for arduous conditions and significant wind chill by dusk.
How Wet?
Some patchy rain, more afternoon
Occasional spots of rain drifting from the west, often dry through the morning and early afternoon, but then several hours of rain likely in the afternoon.
Cloud on the hills?
Mostly just high tops, more in afternoon
Banks of cloud on higher terrain in the morning, most facing Cardigan Bay/Llyn Peninsula, odd lower patches too. Cloud lifts and breaks after sunrise, likely clear hills for a time, caps grazing high tops, more often over high terrain afternoon.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Largely cloudy, some weak sun through high cloud with occasional brighter moments east. Good visibility.
How Cold? (at 900m)
-1C from dawn, rising to +2C, staying lifted for several hours into night. Later, feeling like -10 to -13C in wind.
Freezing Level
600-800m at dawn, slowly lifting to clear the summits through afternoon.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 11th April 2026
Last updated
Wed 8th Apr 26 at
4:04PM
How windy? (On the summits)
Southwesterly 20-25mph, gradually strengthening, 40-50mph by dusk.
Effect of the wind on you?
Fairly small at dawn, blustery in exposure, increasingly challenging conditions through afternoon and wind chill setting in.
How Wet?
Snow showers, risk hail
Showers stream in from the west throughout the day, snow to 500m, some hail mixed in as well. Frequency will vary, with more persistent showers but also drier times.
Cloud on the hills?
Regularly clear summits, occasional caps
Variable cloud mostly above 700m in the morning, may be briefly more extensive at dawn, but bases lifting through the morning, breaks forming off the tops, perhaps for extended periods, but occasionally returning to the summits in showers.
Chance of cloud free summits?
Rising to 60%
Sunshine and air clarity?
Bursts of sunshine, some extended periods of sun. Variable visibility, often very good but poor in showers.
How Cold? (at 900m)
-1 or 0C, may rise slightly. Later, feeling like -15C in direct wind.
Freezing Level
800-900m, some variability, and tending to rise slightly.
Planning Outlook
An unsettled weekend with rain, showers, and wind temperatures, though a few bright spells will break out. Variable weather regimes next week: Atlantic west-southwesterly winds likely dominant, with low pressure to the northwest of the country, brining cloud, rain, and mild temperatures, often followed by sun, showers, and cooler temperatures; rain will be increasingly common to the high Munros, but the snowfall level will lower too during periods of cooler weather, and perhaps to high Lakeland fells, though any snow unlikely to accumulate here. In the longer term, indications of high pressure increasingly building, brining drier and brighter conditions with mild days to England and Wales and occasionally Scotland too, though the risk remains of occasional rain and cooler temperatures.