Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Monday's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
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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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
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
Monday 9th November 2026
Last updated
Sun 8th Nov 26 at
3:00PM
Summary for all mountain areas
Many Scottish mountains sunny, but variable areas of low cloud and low-level fog. Murky conditions more widely Pennines and east Wales. No rainfall generally, but dampness in the air locally. Light wind for most places; increasing easterly breeze for Wales.
Headline for Eryri / Snowdonia National Park
Sunshine west; foggy east. Increasing breeze.
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 in east Wales.
Cloud on the hills?
North and west mountains generally clear
Very little if any cloud across the north and west of Eryri. Further east and into mid Wales, areas of fog from lower elevations up in the morning, also some cloud banks drifting over high terrain, whilst some tops may emerge out of cloud or between banks.
Chance of cloud free summits?
20% east-mid Wales, to 80% west and north.
Sunshine and air clarity?
Mostly sunny in the west, very good visibility; a thin veil of high cloud possible. Further east 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
Sun 8th 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?
Rain developing mainly mid Wales
The morning likely dry, perhaps well into afternoon, but rain likely moving gradually in from the south later. 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 mainly morning, but sun weak if any. Visibility good if dry, becoming poor in rain.
How Cold? (at 900m)
5C. Feeling like -5C directly in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 11th November 2026
Last updated
Sun 8th Nov 26 at
3:00PM
How windy? (On the summits)
Easterly 20 to 30mph, stronger gusts in places around tops, passes and locally to some lower slopes; may ease a little.
Effect of the wind on you?
Starting to affect comfortable walking on exposed terrain, variable gusts to some lower elevations. Marked wind chill.
How Wet?
Patchy rain mainly mid Wales
An area of rain more likely toward mid Wales, may give steady light rain for a few hours, sleet higher tops - some uncertainty, but tending to break up and fizzle out as the day goes on. Very little may affect northern mountains.
Cloud on the hills?
Most extensive south, better northwest
Banks of cloud may fairly widely cover the hills, lowest and most persistent toward mid Wales and the Bala-Berwyn group, whilst further northwest cloud base higher and may be clearer to some tops.
Chance of cloud free summits?
20% east/mid Wales, 50% northwest
Sunshine and air clarity?
Overcast, a veil of thick high cloud at best. Murky in rain, but visibility good where drier in northwestern areas.
How Cold? (at 900m)
2C. Feeling like -6 to -8C directly in the stronger wind.
Freezing Level
Just above freezing on higher slopes.
Planning Outlook
Generally dry much of the week ahead in Scotland. Some variable cloud and fog early in the week. A gusty easterly wind for England & Wales and rain pushes into Wales on Tuesday, reaching the south Pennines with time, persisting into Wednesday in these areas, but very little extending further north. 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.