Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Friday's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
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
Friday 30th January 2026
Last updated
Thu 29th Jan 26 at
3:55PM
Summary for all mountain areas
Gales for northern England and Scotland all day with powerful gusts over tops and downslope to the northwest. Several hours of snow in these regions as well, passing from west-to-east with time, the snow level lifting to mid-slopes; northwest Scotland mostly dry and bright. Blustery in Wales, most of the rain south/east.
Headline for Eryri / Snowdonia National Park
Blustery, notably early and late; often dry
How windy? (On the summits)
South to southeasterly 25 to 30mph most of the day, stronger at dawn with gusts up to 40mph over high summits. Trending easterly later in the day, rising again to 35-40mph around/after dusk.
Effect of the wind on you?
Blustery in exposure, though effects may be fairly small for several hours. Early and late in the day, walking more strenuous, strongest wind challenging stability and steady forward progress.
How Wet?
Some patchy rain early, then dry well into the day
Patchy rain, falling as snow on high tops above 800-900m, amounts small. Rain will abate for several dry hours, perhaps until later afternoon.
Cloud on the hills?
Low cloud east, clearer west for a time afternoon
Low cloud most likely across hills from Berwyn to Bala groups, higher bases and more broken westwards, may be largely clear some hills toward west coast for a few hours in the afternoon, though highest summits will struggle to clear.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Cloudy and dull or murky eastern hills, but much better westwards, some afternoon sun, best chance toward coast and Anglesey.
How Cold? (at 900m)
+1C to start the day, locally 0C on south/east slopes. Lifting to 2C most hills. Wind chill feeling like -7C early in day.
Freezing Level
900-1000m to start the day, lifting above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 31st January 2026
Last updated
Thu 29th Jan 26 at
3:55PM
How windy? (On the summits)
Detail uncertain: southwesterly 15-30mph, variable, perhaps easing into a lull.
Effect of the wind on you?
Often fairly small, but feeling blustery in exposure - confidence in timing and extent of effects is currently low.
How Wet?
Intermittent-to-frequent rain
Periods of rain will come and go through the day, falling as sleet onto high terrain.
Cloud on the hills?
Most extensive early, local improvements
Cloud shrouds the high terrain of Eryri NP (Snowdonia) most of the day, extensively to middle slopes early. A slight lifting trend, some higher breaks possible, though variably lowering again.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Some glimpses of sun here and there but often cloudy. Mixed visibility, good where out of rain.
How Cold? (at 900m)
1C, may rise a degree with time.
Freezing Level
Likely just highest summits, may variably lift off the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 1st February 2026
Last updated
Thu 29th Jan 26 at
3:55PM
How windy? (On the summits)
Detail uncertain: speed and direction may often change, but generally southerly, 15-30mph, perhaps lighter at times.
Effect of the wind on you?
May be fairly small at times, but be mindful of sudden changes in speed which may impede walking.
How Wet?
Patchy rain
Patchy light rain affects many hills throughout the day. Rain may be more frequent and heavier for a time midday/afternoon.
Cloud on the hills?
Fairly extensive but variable
Fog shrouds high terrain most or all day. Bases may lower to middle slopes locally in spots of rain, but higher breaks possible as well.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Glimpses of sun here and there, but often cloudy. Generally good visibility but reduced in rain.
How Cold? (at 900m)
1 or 2C.
Freezing Level
May just touch the highest summits.
Planning Outlook
Unsettled this weekend: often cloudy and patchy rain for most. Variable winds cause rapid local changes in cloud amounts, rain, and impact on walking. The freezing level may lift somewhat, isolating snowfalls to higher Scottish terrain. In the coming week, periods of precipitation and wind will affect most mountains at least every few days. Scottish Munros generally below freezing point, with snow cover and drifts most substantial from the Cairngorms to central and southern Highlands, some additional falls in the week ahead (with continued flooding risk too); much less precipitation northwestward. Hills in England and Wales may see a period of freezing levels above the summits as a southerly flow brings slightly milder air to the country. An indication of colder easterlies in February, though detail is very uncertain.