Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Saturday'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.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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.
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.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
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
Saturday 7th November 2026
Last updated
Fri 6th Nov 26 at
3:30PM
Summary for all mountain areas
Extensively cloudy and dull, some drizzle or light rain, but total amounts small. Areas of fog in places from low terrain upward and cloud banks across hills. Some highest Scottish summits may just poke out above cloud, but local variations. Generally light wind.
Headline for Eryri / Snowdonia National Park
Low cloud and some drizzle, local cloud breaks west.
How windy? (On the summits)
Direction varied 10mph or less.
Effect of the wind on you?
Negligible
How Wet?
Patches of drizzly rain, odd coastal showers
Total rainfall small, but locally in east Wales, drizzly rain may fall for an hour or two. As the day goes on, one or two light showers may drift in from the Irish Sea onto west coastal hills.
Cloud on the hills?
Extensive fog across the hills.
Low cloud will affect much of region above 200-400m up to the tops, although westwards the cloud base will tend to be above 450 and higher areas may sometimes emerge between cloud layers, though tops rarely clear.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Cloudy or dull and extensively misty or foggy east Wales. A little sun here and there but still hazy west Wales, some improvement.
How Cold? (at 900m)
4C
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 8th November 2026
Last updated
Fri 6th Nov 26 at
3:30PM
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 or very light drizzle.
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.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Cloudy or dull with extensive fog - some areas brighter with glimpses of sun developing through day.
How Cold? (at 900m)
4C
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 9th November 2026
Last updated
Fri 6th Nov 26 at
3:30PM
How windy? (On the summits)
East-southeasterly 10-15mph, 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
Some uncertainty, but areas of fog from lower elevations up in the morning toward east Wales in particular, also some cloud banks drifting over high terrain. Overall better breaks and clearer hills likely further westwards.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Some 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, may rise slightly toward west. Feeling below freezing as wind increases.
Freezing Level
Above the summits. Local frost pockets in sheltered valleys around dawn.
Planning Outlook
High pressure persists into the start of the new week with light winds for much of Scotland, though an easterly wind will increase for England and Wales. The west and northwest Highlands most extensively dry with cloud breaks and sun. However, disappointing for other areas as 'gloomy' conditions predominate, with patches of light rain and extensive low cloud and fog. Into midweek, an area of low pressure will bring rain and wind in from the southwest but northern Scotland may escape most or all the rain. Late in the week, indications favour a switch to a colder northerly flow for a time in Scotland at least and brings scope for snow showers to northern mountains.