Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Today's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchy cloud and winter sun
Mostly dry with a mix of cloud and sun, patchy cloud occasionally covering some mountain slopes.
Hazy, some fog banks
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Visibility reduced around cloud banks, hazier on some lower slopes. Locally some improvements possible out of cloud.
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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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchy cloud and winter sun
Mostly dry with a mix of cloud and sun, patchy cloud occasionally covering some mountain slopes.
Hazy, some fog banks
Visibility reduced around cloud banks, hazier on some lower slopes. Locally some improvements possible out of cloud.
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
Thursday 19th February 2026
Last updated
Wed 18th Feb 26 at
4:29PM
Summary for all mountain areas
Most mountain terrain remains frozen. Gusty southeasterly wind with significant chill factor. Some snow flurries towards southwest of Highlands with low cloud banks, clearer northward. Light snow fading Peak District and Pennines, low cloud persists here. Generally dry Wales but increasingly windy.
Headline for Eryri / Snowdonia National Park
Wind varied, increasing afternoon. Varied cloud, largely dry.
How windy? (On the summits)
Variable or northeast, 15-20mph morning into middle of day, turning northwest later westerly, tending to increase to 25-30mph, likely strongest toward south.
Effect of the wind on you?
Fairly small, but prepare for considerable wind chill, increasingly blustery later.
How Wet?
Most or all daytime dry
Snow from overnight through dawn in eastern areas around Bala and Berwyn will soon fade out to leave substantially dry conditions. From dusk, risk of a little rain, snow above 600-700m moving onto western hills.
Cloud on the hills?
Varied cloud banks may linger
Patchy cloud, lowest at first on eastern slopes, but shrouds most high terrain early in the day. Varied improvements, with local breaks forming, but also areas of lingering cloud banks, which may fill in again from the west at times during day.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely cloudy, some misty areas with poor visibility over hills. Locally improving inland with good visibility below cloud.
How Cold? (at 900m)
-2 or -1C, some variability, and little change with added height. Wind chill feeling like -10C particularly into afternoon.
Freezing Level
300-400m, lifting to near 700m and may rise further overnight.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 20th February 2026
Last updated
Wed 18th Feb 26 at
4:29PM
How windy? (On the summits)
Southwesterly 40-55mph, likely quite gusty. A westerly shift with time.
Effect of the wind on you?
Challenging conditions all day with significant wind chill; maintaining stability requires constant effort/crouching.
How Wet?
Patchy rain, more steady for a few hours
Patchy rain/drizzle affecting high western hills much of the day, the best chance of dry periods in east Wales. Rain sets in for a few hours, then breaking into scattered showers.
Cloud on the hills?
Fairly extensive
Cloud shrouds high terrain and slopes to the west and south down to the middle slopes most of the day. Cloud at times well broken and higher bases towards Carneddau, but filling in here too during rain.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Mostly cloudy but some bright/sunny breaks will come and go, best east. Variable visibility, good out of cloud and rain, but some haze too.
How Cold? (at 900m)
0 or +1C from dawn, rising to 4C. Feeling like -7 to -10C in direct wind.
Freezing Level
Poorly defined from dawn: highest terrain likely frozen, locally lower west, but soon rising above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 21st February 2026
Last updated
Wed 18th Feb 26 at
4:29PM
How windy? (On the summits)
Southwesterly 35 to 45mph, briefly lowering in morning, but soon increasing again, toward dusk risk over 50mph.
Effect of the wind on you?
Strenuous walking conditions, making balance challenging on exposed ridges, widely difficult at dawn and again later.
How Wet?
Rain and drizzle
Rain on and off, persistently drizzly at least particularly western areas, more constant rain for periods, may become heavier with time. Patchier easternmost areas.
Cloud on the hills?
Extensive
Blanketing the hills all day, from lower elevations upward near Cardigan Bay, rarely above 400-500m inland. Furthest east, bases toward 600m at times.
Chance of cloud free summits?
10%
Sunshine and air clarity?
Overcast and dull. Hazy, visibility widely poor in rain.
How Cold? (at 900m)
4 or 5C. Where exposed to stronger winds on tops, feeling like -6 to -8C.
Freezing Level
Above the summits.
Planning Outlook
Toward the weekend, a switch to southwesterly winds, bringing milder conditions - lifting above freezing to tops in England and Wales with substantial thawing, and generally higher freezing levels in Scotland; periods of thawing to Munro summits will occur but also further snowfall and refreezing on higher terrain during the day-to-day variability of precipitation and freezing levels onward into early next week. Often windy with periods of upland gales. Some spells of heavy rain over all western hills and low cloud frequently covering the hills.