Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Sunday'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.
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.
Hazy, some fog banks
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Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
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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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
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.
Hazy, some fog banks
Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
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
Sunday 8th November 2026
Last updated
Sat 7th Nov 26 at
3:00PM
Summary for all mountain areas
Patchy drizzle and areas of low cloud or fog, mostly east and southern Scotland, Pennines and inland across Wales, whilst western regions tend to fare better for cloud breaks and some sun. Very little wind overall. Near freezing on highest Scottish tops.
Headline for Eryri / Snowdonia National Park
Varied cloud and fog, likely clearer west, some sun.
How windy? (On the summits)
Direction varied 10mph or less.
Effect of the wind on you?
Negligible
How Wet?
Patchy drizzle
Local pockets of light drizzle. Possibly an odd light shower nearest to coasts.
Cloud on the hills?
Extensive; cloud base sometimes very different on nearby slopes
Some local variations, but cloud likely extensive highest slopes. Lower down, fog clinging to many slopes from valleys up most or all day, whilst others are or become fog free or are between layers of cloud. Tending to improve with fog thinning afternoon. Generally better toward coastal hills.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Varied cloud or fog - some areas brighter with glimpses of sun developing through day, likely better coasts; some haze remains lower down.
How Cold? (at 900m)
4C
Freezing Level
Above the summits. Local pockets of slight frost inland valleys early morning.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 9th November 2026
Last updated
Sat 7th Nov 26 at
3:00PM
How windy? (On the summits)
East-southeasterly 15mph at first, rising during day to 20mph, reaching 25mph and increasingly gusty from dusk onward.
Effect of the wind on you?
Fairly small, but becoming more noticeable as the day goes on.
How Wet?
No rain expected
Locally feeling damp where in fog, mainly east Wales.
Cloud on the hills?
Low cloud or fog mostly east
Areas of fog from lower elevations up in the morning toward east Wales, also some cloud banks drifting over high terrain. Overall better breaks and clearer hills further westwards, perhaps very little cloud much of the west coast.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Sun mainly in the west, a thin veil of high cloud; local very good visibility west; further east more likely hazy or foggy.
How Cold? (at 900m)
4C, slight rise toward west. Feeling below freezing as wind increases.
Freezing Level
Above the summits. Local frost pockets in sheltered valleys around dawn.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 10th November 2026
Last updated
Sat 7th Nov 26 at
3:00PM
How windy? (On the summits)
Southeasterly 25 to 35mph, gusty in places around major summits, high passes and some western downslopes.
Effect of the wind on you?
Strenuous walking in exposure, gusty areas making balance difficult at times. Considerable wind chill.
How Wet?
Risk of rain developing widely
Some uncertainty of timing, but rain likely moving gradually northwards across the region. Likely patchy small amounts toward northwest, but may become more persistent mid-Wales.
Cloud on the hills?
Most persistent south
Likely to cover much high terrain, but locally varied - typically lowest and most extensive over east and mid-Wales, whilst further toward the northwest some breaks may occur to some upper slopes.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Fairly cloudy, locally brighter northwest, but little if any sun. Visibility good if dry, but poor in rain.
How Cold? (at 900m)
5C. Feeling like -5C directly in the wind.
Freezing Level
Above the summits.
Planning Outlook
A slack pressure pattern to start the new week over Scotland, maintaining varied low cloud and fog. Lowering pressure to the south and an increasing easterly wind for England & Wales. Rain pushes into Wales on Tuesday, reaching the south Pennines with time, persisting in these areas into Wednesday, but very little extending further northwards. Into the second half of the week, a switch to a colder northerly flow will likely drop the freezing level to 800m increasingly widely for Thursday-Friday, plus frost on low ground. Some snow showers on northern Scottish mountains, but largely dry weather elsewhere. During next weekend, a shift to a less cold Atlantic influence - a changeable mix likely into the following week.