Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Friday's Forecast
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Snow
Snowfall continuous or frequent over the mountains, beware of conditions becoming challenging on higher terrain. At lower elevations falling as rain.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Terrain widely frozen
All ground frozen from lower elevations upward, with hard frost or snow cover. Beware of icy surfaces on lower and higher terrain. Appropriate footwear needed, crampons may be necessary.
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Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Snow
Snowfall continuous or frequent over the mountains, beware of conditions becoming challenging on higher terrain. At lower elevations falling as rain.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Terrain widely frozen
All ground frozen from lower elevations upward, with hard frost or snow cover. Beware of icy surfaces on lower and higher terrain. Appropriate footwear needed, crampons may be necessary.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 13th February 2026
Last updated
Thu 12th Feb 26 at
12:55PM
Summary for all mountain areas
A change in the pattern as cold air will have extended south overnight. Nearly all mountain terrain frozen in Scotland whilst further south, particularly higher terrain progressively freezes. Patches of snow, at times persistent Wales, but otherwise total precipitation small.
Headline for Eryri / Snowdonia National Park
Terrain increasingly frozen; intermittent snow.
How windy? (On the summits)
Northeasterly, speeds varied. Widely around 30mph, but on western mountains a very gusty 35-45mph and in places powerful gusts lower slopes.
Effect of the wind on you?
Gusty wind will make balance difficult (even on some lower slopes west Wales) and give considerable wind chill.
How Wet?
Intermittent snow
A mix of steady snow, lasting a couple of hours or so, and particularly mid Wales heavier but briefer snow showers. Rain only valleys.
Cloud on the hills?
Extensive though slowly lifting and breaking
Confidence low: cloud widely across the hills, locally below 300m morning. Slowly will tend to improve. At some stage in afternoon, may clear largely to above 750 to 900m.
Chance of cloud free summits?
10% tending to rise toward 60%
Sunshine and air clarity?
Mostly overcast. Very poor visibility in snow, improving as snow eases and cloud lifts.
How Cold? (at 900m)
-2 or -3C, trending colder with time. Will feel as cold as minus 16C in the wind.
Freezing Level
400m, although in morning, nearer 750m mid Wales before dropping from north. Most mountain terrain increasingly frozen.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 14th February 2026
Last updated
Thu 12th Feb 26 at
12:55PM
How windy? (On the summits)
Northwest then west later southerly, initially 25mph before a prolonged lull of around 15mph. Strengthening pre-dusk.
Effect of the wind on you?
Soon small but uncomfortable gusty wind early and late in the day (very difficult conditions into the night).
How Wet?
Precipitation very unlikely
Some light snow flurries may affect northern hills in the morning, but otherwise dry.
Cloud on the hills?
Many mountains free of cloud
Mountains extensively free of cloud. From midday, increasing chance patches covering areas above 500 to 750m on westernmost mountains.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Extensive bright sunshine before high level cloud spreads eastward afternoon. Excellent or superb visibility.
How Cold? (at 900m)
-3C, rising a degree or so through afternoon.
Freezing Level
550m, but most terrain widely frozen. Partial thawing lower, particularly sunlit slopes, through day.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 15th February 2026
Last updated
Thu 12th Feb 26 at
12:55PM
How windy? (On the summits)
Westerly 30 to sometimes 35 or 40mph.
Effect of the wind on you?
Significant wind chill and widely arduous walking on higher areas. Most gusty near showers when balance sometimes difficult.
How Wet?
Hail and snow showers
Overnight snow clearing at about dawn. Then occasional hail and snow showers, but mostly rain below 800m.
Cloud on the hills?
Frequently or persistently covering higher summits.
Fog across the hills at dawn in precipitation. Will soon improve markedly as cloud base rises to 750-900m or above, albeit dropping again to around 400m near showers.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Bursts of sunshine. Sometimes excellent visibility, but abruptly poor in precipitation.
How Cold? (at 900m)
Soon 2C. Will feel as close to minus 10C where exposed to the wind.
Freezing Level
Most terrain frozen, albeit freezing level soon 1000m or above with thaw commencing.
Planning Outlook
Widespread snow and severe upland gales Saturday night followed by very blustery showery conditions on Sunday - although a temporary thaw at least on lower slopes. Otherwise very much drier over the coming week. Bright sunshine and excellent visibility frequently on many mountain areas, although hail and snow showers in some areas with most upland areas frequently frozen.