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.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
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.
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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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.
Frequent or persistent rain
Steady rain fairly persistent, occasionally heavy, rather wet underfoot.
Hazy, some fog banks
Visibility reduced around cloud banks, hazier on some lower slopes. Locally some improvements possible out of 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 23rd January 2026
Last updated
Thu 22nd Jan 26 at
4:00PM
Summary for all mountain areas
Gales widespread across all mountain areas, powerful turbulent gusts downslope toward the west in places. Prolonged upland snow southeastern Highlands into southern Cairngorms, increasingly rain to mid-heights. Further rain also spreads north across Wales then the Pennines. Low cloud widely.
Headline for Eryri / Snowdonia National Park
Gales on tops. Rain develops, low cloud.
How windy? (On the summits)
East-southeasterly strengthening from before dawn to 45-55mph early morning, 60mph for a few hours; stronger gusts in places around tops, high passes and downslope west of summits.
Effect of the wind on you?
Arduous walking with considerable buffeting, more challenging mobility in places. Significant wind chill.
How Wet?
Rain/sleet becoming fairly persistent, less northwest.
A little rain on and off in morning, amounts mostly small or largely dry in northwest at first, but increasingly frequent rain into middle of day, falling as sleet or snow above 800m for a time, then wetter. Patchy rain and showers into afternoon, rain most frequent eastern mid-Wales.
Cloud on the hills?
Extensive over tops and east slopes
Often capping higher slopes, most persistent mid-Wales to middle slopes but bases varying, lowering in rain. Highest bases northwest Snowdon group, clearing above tops occasionally and western slopes often clear.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Overcast, often dull on high tops and east slopes. Visibility good away from cloud and precipitation but some haze likely.
How Cold? (at 900m)
0 or 1C, slight rise to 2C afternoon. Wind chill feels as cold as -15C.
Freezing Level
900-1000m in morning, lifting just above freezing to high tops into afternoon, then dropping slightly again after dark.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 24th January 2026
Last updated
Thu 22nd Jan 26 at
4:00PM
How windy? (On the summits)
Southeasterly 45 to 60mph, powerful gusts in passes and downslope to NW; top speed may fluctuate during day.
Effect of the wind on you?
Challenging conditions; walking and balance difficult in exposed areas, buffeting gusts lower down; significant wind chill.
How Wet?
Intermittent rain, snow tops
Rain on and off, most frequent eastern hills, falling as sleet or snow on higher tops, mostly above 700m. Patchier small amounts westward.
Cloud on the hills?
Lowest east, some breaks west
Covering many higher tops all day, lowest bases around Bala group, around 500-600m. Breaks toward some upper slopes nearer to western coasts.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely cloudy, locally brighter west, where visibility good if dry. Poor visibility in rain, or very poor if in snow on high tops.
How Cold? (at 900m)
0C. Directly in the wind feeling like -15C.
Freezing Level
Around 800m, but some western high slopes may be just above freezing point.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 25th January 2026
Last updated
Thu 22nd Jan 26 at
4:00PM
How windy? (On the summits)
Southeasterly, speed may vary, in range 20 to 35mph, locally stronger gusts around high tops and downslope to NW.
Effect of the wind on you?
Blustery over most high terrain, in places more frequent buffeting not just on the tops. Considerable wind chill.
How Wet?
Patchy rain
Occasional rain, most frequent or persistent over eastern Wales, patchier westwards.
Cloud on the hills?
Fairly extensive
Covering many high tops all day, lowest and most persistent cloud east and mid-Wales. Higher cloud and some breaks further northwestward.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Largely cloudy, hazy. Poor visibility over many hills, brighter and locally good visibility toward northwest.
How Cold? (at 900m)
1C. Feeling like -8 to -12C in the wind.
Freezing Level
Close to freezing on higher summits around 1000m.
Planning Outlook
East to southeasterlies continue through the weekend and onward into next week, frequently strong to gale-force over the mountains, giving severe chill factor. Below freezing across high terrain in Scotland, and into early next week a lowering freezing level over hills in England and Wales. Frequent or persistent snowfall over east and southern Scottish mountains, rain on lower slopes causing flooding in the short term. Patchier and small amounts reaching coastal regions in west-northwest Scotland. Areas of rain and increasingly hill snow push across England and Wales as low pressure remains dominant. Low cloud often covering many hills.