Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Sunday'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 and rain mix
Precipitation falling mostly as snow on higher terrain, rain on low-to-middle elevations, may turn to sleet or rain higher up.
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.
Winter kit required on higher terrain
Snow cover over higher mountains. Safe progress over some terrain will require suitable footwear - possibly crampons and ice-axe where necessary.
Click an icon for more information or click here for a key to all icons.
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 and rain mix
Precipitation falling mostly as snow on higher terrain, rain on low-to-middle elevations, may turn to sleet or rain higher up.
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.
Winter kit required on higher terrain
Snow cover over higher mountains. Safe progress over some terrain will require suitable footwear - possibly crampons and ice-axe where necessary.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 15th February 2026
Last updated
Sat 14th Feb 26 at
12:12PM
Summary for all mountain areas
Overnight snow (considerable western Scotland north to Skye) will have cleared, leaving snow (rain lower slopes) showers in Scotland (driest toward east), whilst further south rain and snow on and off. Most mountain terrain will be frozen although thawing lower slopes.
Headline for Eryri / Snowdonia National Park
Frozen largely terrain. Frequent rain or snow. Wind near gale force.
How windy? (On the summits)
Westerly 30 to sometimes 35mph, although 40mph for a few hours middle of day or afternoon.
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?
Rain and snow; easing afternoon
Persistent snow clearing before dawn. Through day hail and snow showers - but over a few hours morning and middle of day the precipitation frequent or almost constant. Mostly rain below 800m.
Cloud on the hills?
Frequently or persistently covering the mountains
Fog persistent across the hills most or all day; sometimes cloud below 300m though mostly above 500m east Wales. Will improve at times, mainly later afternoon as cloud base rises to 600m to perhaps 800m.
Chance of cloud free summits?
Less than 10%
Sunshine and air clarity?
Bursts of sunshine, mainly east Wales. 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.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 16th February 2026
Last updated
Sat 14th Feb 26 at
12:12PM
How windy? (On the summits)
Westerly in the range 35 to 45mph.
Effect of the wind on you?
Significant wind chill and walking arduous, sometimes balance difficult.
How Wet?
Snow showers; sometimes frequent
Snow and hail showers, sometimes frequent and threat of the precipitation almost constant over a couple of hours. Mostly rain below 450m. Chance isolated thunder morning.
Cloud on the hills?
Extensive
Cloud base varying, between 300m near precipitation and otherwise 500 to occasionally above 750m (generally highest base east Wales afternoon).
Chance of cloud free summits?
20%
Sunshine and air clarity?
Occasional sunshine - mainly lower slopes east Wales. Very varied visibility; very poor or appalling in snow, but otherwise excellent.
How Cold? (at 900m)
0 or -1C. Will feel around minus 14C directly in the wind.
Freezing Level
800m to 950m.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 17th February 2026
Last updated
Sat 14th Feb 26 at
12:12PM
How windy? (On the summits)
Northerly high confidence in dropping to less than 15mph in a lull, but post dawn 15, possibly 25mph.
Effect of the wind on you?
Becoming negligible
How Wet?
Precipitation unlikely
Risk snow and hail showers over Irish Sea affecting Snowdon range at first, possibly until early afternoon.
Cloud on the hills?
Largely or all clearing
By afternoon mountains largely or completely free of cloud. Earlier in day cloud may be extensive on higher slopes Snowdon range.
Chance of cloud free summits?
80% by afternoon
Sunshine and air clarity?
Bright sunshine increasingly. Excellent or superb visibility.
How Cold? (at 900m)
-2C
Freezing Level
700m.
Planning Outlook
Persistently cold most mountain areas, particularly across Scotland next week. Further snow from time to time. England and particularly Wales will have intermittently higher freezing levels resulting in freeze-thaw cycles.