Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Wednesday's Forecast
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
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.
Click an icon for more information or click here for a key to all icons.
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
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 6th May 2026
Last updated
Tue 5th May 26 at
4:20PM
Summary for all mountain areas
Odd early snow flurries in north Scotland, otherwise clear Munros until late; some snow returns to the west and north Highlands near evening. Little or no rain south Scotland and England, several hours of morning sun and any hill cloud soon clearing. Spotty light rain for Wales, cloud clearing hills, but only glimpses of sun.
Headline for Eryri / Snowdonia National Park
Well-scattered light rain; cloud above the summits afternoon
How windy? (On the summits)
East-southeasterly 15mph in the morning, may gust 20mph over highest tops, but starting to ease, around 10mph with some variability.
Effect of the wind on you?
Mostly small, but a nuisance breeze over high tops early in the day.
How Wet?
Patchy light rain
Spots of rain drifting around many hills throughout the day, perhaps a lull in the precipitation around the midday hours. Rainfall totals likely small, some hills stay entirely dry.
Cloud on the hills?
Varied on high terrain early, mostly east; lifting to clear summits
Some varied cloud around mid to upper slopes in the morning; a risk of more extensive banks in the early hours east. Cloud lifts through morning, likely clearing the summits by early afternoon and staying clear into the evening.
Chance of cloud free summits?
Rising to 90% by afternoon
Sunshine and air clarity?
Rather cloudy but some glimpses of sunshine, perhaps more frequent for a few hours around midday. Visibility largely excellent.
How Cold? (at 900m)
3C; east Wales starts cooler. Rising to 5C.
Freezing Level
May just graze the high summits for a few early hours, lifting above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 7th May 2026
Last updated
Tue 5th May 26 at
4:20PM
How windy? (On the summits)
Southerly 10-20mph.
Effect of the wind on you?
Fairly small.
How Wet?
Showery rain
Rain affecting many hills, the greatest chance in the afternoon when rain may become heavier and more persistent for a few hours.
Cloud on the hills?
Banks high west slopes and summits
Some varied fog banks in the morning, possibly to lower slopes, these lifting after dawn towards 800m with regular higher breaks. Greatest risk of cloud caps lingering on highest tops and upper western slopes, and more extensive over high ground in heavier showers.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Glimpses of sun. Excellent visibility but deteriorating during rain.
How Cold? (at 900m)
4 to 6C, or locally 7C Carneddau in the afternoon.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 8th May 2026
Last updated
Tue 5th May 26 at
4:20PM
How windy? (On the summits)
Generally south-southeasterly 10-15mph, often less and direction varying.
Effect of the wind on you?
Mostly small.
How Wet?
Showers, most afternoon
Scattered showers most of the day, dry periods; a rising risk of more frequent and heavy showers in the afternoon, but confidence is low.
Cloud on the hills?
Lifting to summits, may be well-broken
Fog at various heights in the morning, but well-broken below 600m. Lifting through morning to 800m or higher, a chance of summit breaks too, but then a risk of more often capping summits if heavier afternoon showers occur.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Glimpses of sun. Variable visibility, very good during drier periods, may be very poor if heavier showers occur.
How Cold? (at 900m)
5C rising to 9C.
Freezing Level
Above the summits.
Planning Outlook
Low pressure to the north of Scotland brings stronger wind and a greater risk of showery rain from Thursday. Cooler temperatures, high Munros staying below freezing for several days, the freezing level as low as 800-1000m. Showers affecting England and Wales, always a risk of heavier bursts afternoon, but timing and location of showers uncertain. Early varied cloud tends to lift to higher slopes, often above summits but some tops shrouded for longer. Into the weekend, low pressure south of the British Isles, facilitating a strong easterly wind with increasingly heavy rain and showers for Wales and southern Pennines. Pressure may remain higher in Scotland for a few days, but staying cold here with freezing levels perhaps to 700m. Indications of increasingly widespread unsettled weather into next week.