Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Monday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Snow flurries
Occasional light snow flurries, sleet or rain lower elevations. Amounts little more than nuisance value, but locally more persistent and reducing visibility for periods.
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.
Snow flurries
Occasional light snow flurries, sleet or rain lower elevations. Amounts little more than nuisance value, but locally more persistent and reducing visibility for periods.
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 30th March 2026
Last updated
Sun 29th Mar 26 at
4:00PM
Summary for all mountain areas
Gale-force west-northwesterlies, severe over higher Scottish mountains toward the north, squally gusts around showers of snow, also hail toward north early in the day. Light showers of rain or upland snow tending to fade with time, some breaks in cloud forming, best eastwards.
Headline for Eryri / Snowdonia National Park
Windy, gales in morning. Light showers fade, cloud breaks.
How windy? (On the summits)
Northwesterly 30 to 40mph, strongest in the morning, gusts 50mph for a time higher mountains.
Effect of the wind on you?
Strenuous walking conditions, frequent buffeting in exposure, balance difficult on ridges. Considerable wind chill.
How Wet?
Light showers for a time
An odd light shower or snow flurry over hills above 600m in morning, fading out.
Cloud on the hills?
Lifting to higher tops, breaks form
Cloud banks drifting over higher slopes, mostly above 600-700m in morning, tending to rise. Patches come and go on high western tops, increasing breaks. Will then lower from west into night.
Chance of cloud free summits?
60% rising to 80% inland
Sunshine and air clarity?
Occasional sun, most common east. Visibility mostly good, slight haze.
How Cold? (at 900m)
0C rising to 3C by late afternoon, then higher after dark. Wind chill feeling like -10 to -13C.
Freezing Level
900-1000m from dawn, rising above highest summits during middle of day.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 31st March 2026
Last updated
Sun 29th Mar 26 at
4:00PM
How windy? (On the summits)
Westerly, 20 to 25mph, in places gusty 30mph around higher tops.
Effect of the wind on you?
Fairly small, but gusty areas may start to affect balance on exposed ridges, feeling quite chilly despite milder air.
How Wet?
Drizzly rain, fading during day
Drizzle and light rain most persistent and widespread during the morning. Tending to fade, but patchy drizzle may linger near west coast, feeling generally damp where within cloud, making rock surfaces slippery.
Cloud on the hills?
Extensive, then rising and breaking
Blanket low cloud across the hills in the morning, from lower elevations up in west, 400-500m inland. Tending to rise to 600-700m, breaks gradually forming, but banks likely come and go on high western tops.
Chance of cloud free summits?
Below 10%, rising to 40% afternoon.
Sunshine and air clarity?
Cloudy and misty, some brighter moments emerge with time inland, perhaps more widely afternoon, visibility becoming good where cloud lifts and breaks.
How Cold? (at 900m)
4 or 5C. Feeling like -3 to -5C directly in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 1st April 2026
Last updated
Sun 29th Mar 26 at
4:00PM
How windy? (On the summits)
West to southwesterly 15 to 25mph, may strengthen with time from north.
Effect of the wind on you?
Fairly small, but may start to feel more noticeable and gusts affecting balance on exposed ridges.
How Wet?
Little if any rain until late
Chance of odd drizzly showers. Later in the day, greater risk of patchy rain developing from the northwest.
Cloud on the hills?
Covering higher slopes most often west
Cloud banks over higher tops, most frequent or persistent toward Cardigan Bay above 600-800m. Mostly above 800m by mid-morning near and east of A5 corridor.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Fairly cloudy, occasional sun mostly east Wales. Visibility good below cloud.
How Cold? (at 900m)
4C. Feeling nearer -4C if exposed to wind.
Freezing Level
Above the summits.
Planning Outlook
A drop of temperature is expected again across Scotland during Wednesday as a band of rain then upland snow drifts slowly southwards. Atlantic weather patterns and west-southwesterly winds likely continue into the start of the Easter period at least, a risk of further gales over the mountains. Temperature may remain variable, possibly often cold over the mountains with snow and hail showers at times to lower elevations at least in Scotland, sometimes more widely, mixed with some spells of rain - precipitation generally most frequent west and northwest. Some windows of drier and brighter conditions, but day-to-day detail is uncertain.