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.
Winter sunshine
Bright sunshine most of the day with the mountains generally free of cloud. Snow cover on higher terrain.
Clear
Excellent or superb visibility, no navigation issues.
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.
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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.
Winter sunshine
Bright sunshine most of the day with the mountains generally free of cloud. Snow cover on higher terrain.
Clear
Excellent or superb visibility, no navigation issues.
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
Saturday 14th February 2026
Last updated
Fri 13th Feb 26 at
12:23PM
Summary for all mountain areas
A transient ridge of high pressure will bring a cold but mostly sunny day although a few snow flurries on some western hills. Nearly all terrain frozen. Toward dusk, initially near the west coast the wind will increase quickly - ahead of severe upland gales and snow overnight.
Headline for Eryri / Snowdonia National Park
Terrain mostly frozen. Light wind; extensive sun.
How windy? (On the summits)
Northwest or northerly 15 or 20mph at dawn. Will drop through morning to or below 10mph in a prolonged lull. Strengthening toward dusk: southerly 20 to 30mph.
Effect of the wind on you?
Small or negligible but very difficult conditions quickly developing after dark.
How Wet?
Precipitation very unlikely
A few light snow showers or flurries northern hills (most likely Carneddau) in morning; otherwise dry.
Cloud on the hills?
Very little
Mountains extensively cloud free. Chance patches coming and going Carneddau morning and on western mountains above 500 to 750m afternoon.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Extensive bright sunshine before high level cloud spreads eastward afternoon. Patchy cloud morning Carneddau Excellent or superb visibility.
How Cold? (at 900m)
-3C.
Freezing Level
Terrain largely frozen from valleys up. Through day freezing level rising from 400 to 600 or 700m, highest sunlit slopes and toward west coast.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 15th February 2026
Last updated
Fri 13th Feb 26 at
12:23PM
How windy? (On the summits)
Westerly 30 to sometimes 35mph. May strengthen toward 40mph 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?
Showery; sometimes frequent
Persistent snow clearing before dawn. Through day hail and snow showers - but over 2 or 3 hours the precipitation may be frequent or almost constant. 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 550-750m, albeit dropping again to or below 400m in rain. Generally highest cloud base will be in east Wales.
Chance of cloud free summits?
30%
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
Fri 13th Feb 26 at
12:23PM
How windy? (On the summits)
Westerly in the range 25 to 40mph.
Effect of the wind on you?
Likely to impede ease of walking and risk strong enough to make walking difficult and wind chill significant.
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.
Cloud on the hills?
Extensive
Cloud base varying, between 300m near precipitation and otherwise 500 to occasionally above 750m (generally highest base east Wales).
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.
Planning Outlook
Persistent 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.