Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Wednesday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
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
Wednesday 7th October 2026
Last updated
Tue 6th Oct 26 at
3:30PM
Summary for all mountain areas
Chilly Scotland, frequent showers over central and west mountains, hail mixed in with snow on summits. Showers spread widely afternoon. Wales and south Pennines start dull and rainy, this soon clearing to cooler, brighter weather. Showers and wind follow in north Wales, then into England later afternoon.
Headline for Eryri / Snowdonia National Park
Early rain clears to blustery showers with hail; patchy sun
How windy? (On the summits)
Northwesterly varying between 20-30mph, some stronger gusts likely, and sustained speeds trending stronger later, up to 35-40mph overnight.
Effect of the wind on you?
Will impact ease of walking and balance in exposure most of the day with notable wind chill, walking increasingly strenuous late in the day into night.
How Wet?
Early rain followed by showers with hail
Steady rain from overnight may linger for a few early hours, but soon clearing to the east. A brief dry window, then showery bursts follow from the north, tending to come in clusters with some hail mixed in, and perhaps local areas to the north of sustained falls.
Cloud on the hills?
Often covering summits, regularly lowering, particularly north
Blanket cloud from before dawn briefly lingers, but soon breaking up to just ragged patches on high terrain. Cloud base becomes highly variable, above 800-900m out of showers but dropping to 400 to 600m near showers. Generally lowest cloud base will be on Snowdon range.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Patchy sunshine, some cloudier periods particularly near and north of Snowdon group. Visibility often good, but sometimes poor during showers and in cloud.
How Cold? (at 900m)
4C, lowering a degree. Will feel as cold as -5C in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 8th October 2026
Last updated
Tue 6th Oct 26 at
3:30PM
How windy? (On the summits)
Northwesterly 30-35mph to start, lessening and shifting westerly, 15-20mph, then significantly strengthening overnight.
Effect of the wind on you?
Blustery in exposure to start, becoming fairly small, then deteriorating overnight.
How Wet?
Showers ease, rain later
From dawn, showers push onto most hills from the north, some local steady falls but tending to break up. Later, rain returns from the west, patchy at first but increasingly frequent evening into night.
Cloud on the hills?
Often covering tops, some breaks
Cloud banks will cling to the high tops much of the day, lower bases towards the north and west early during showers, locally towards 600-700m. Cloud largely isolates to tops, a few breaks forming, but then returning extensively evening into night.
Chance of cloud free summits?
Rising to 60%
Sunshine and air clarity?
Patchy sun, mostly sunny mid-Wales to start, high cloud increasingly thickening. Very good visibility.
How Cold? (at 900m)
3C, rising slightly, then a sharp rise into night to 10C or above.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 9th October 2026
Last updated
Tue 6th Oct 26 at
3:30PM
How windy? (On the summits)
Westerly sustained 45-55mph early, lessening to around 35-40mph afternoon, but very gusty, approaching 60mph+.
Effect of the wind on you?
Arduous conditions in exposure all day, gusts constantly challenge balance, more difficult early. Notable wind chill.
How Wet?
Early rain, then showers forming
Rain and drizzle from overnight into morning, a brief heavy burst, then a dry window. Scattered showers afternoon, trending more frequent, particularly into night.
Cloud on the hills?
Extensive early, the varied on high terrain
Blanket low cloud to start, fog patches into valleys west of high terrain. Cloud will lift and break up rapidly as midday approaches, then cloud variably coming and going above 800-900m. Hills east of highest tops substantially clear.
Chance of cloud free summits?
Rising to 60%
Sunshine and air clarity?
Overcast and dull to start, clearing to mostly sunny with good visibility. Patchy high cloud tending to build.
How Cold? (at 900m)
Starting around 11C, soon rapidly cooling to around 6C. Feeling like -4 to -8C in direct wind.
Freezing Level
Above the summits.
Planning Outlook
Thursday begins chilly with bright sun, some frosts in sheltered glens and valleys, and a few showers along Scottish and Welsh coasts. Westerly wind returns as Thursday goes, bringing rain, low cloud and strong upland winds across Britain overnight into Friday morning. Friday and Saturday are windy and showery with bright breaks, a risk of severe gales on Scottish tops. Sunday sees a more settled day as a small ridge of high pressure builds from the west. The following week looked mixed with bands of rain coming and going, temperatures similarly fluctuating: generally mild, but sometimes chilly in Scotland with freezing levels lowering onto high Munros and rain turning to snow. Some indications of more settled weather into the following weekend, but confidence is low.