Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Saturday'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.
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.
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.
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.
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
Saturday 24th January 2026
Last updated
Fri 23rd Jan 26 at
3:35PM
Summary for all mountain areas
Gales widely across high terrain, strongest sustained speeds over Wales. Snowfall continues over east and southeast Scottish Highlands mountains, whiteout on higher terrain; rain lower down. Largely dry and clearer further northwest. Clearer also for the Lake District. Rain frequent in south Wales.
Headline for Eryri / Snowdonia National Park
Gales, severe high tops. Rain or high-level snow at times.
How windy? (On the summits)
Southeasterly 45 to 60mph, powerful gusts in passes and downslope to NW; top speed may fluctuate during day, tending to be most widely sustained higher speeds afternoon into evening.
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, some snow tops
Rain on and off, most frequent eastern hills, at times falling as sleet or snow on higher tops, mostly above 700m. Patchier small amounts northwestward. More constant rain tending to set in later in day and into evening.
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)
0 or 1C. Directly in the wind feeling like -15C.
Freezing Level
Around 800m in places, but some western higher slopes just above freezing point.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 25th January 2026
Last updated
Fri 23rd Jan 26 at
3:35PM
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.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 26th January 2026
Last updated
Fri 23rd Jan 26 at
3:35PM
How windy? (On the summits)
Southeasterly 30mph at dawn, steadily increasing to a gusty 45-50mph by dusk, strengthening further after dark.
Effect of the wind on you?
Strenuous walking from dawn becomes challenging by dusk with considerable buffeting. Significant wind chill.
How Wet?
Rain sets in afternoon
Mostly dry morning, a few spots of sleet on eastern hills. Rain arrives afternoon, gradually becoming widespread and falling as snow on the high summits.
Cloud on the hills?
Becoming extensive afternoon
Patchy cloud on the upper slopes and summits, some breaks but more extensive east Wales. Becoming extensive afternoon as rain sets in with bases lowering to middle slopes at least.
Chance of cloud free summits?
40%, later 10%
Sunshine and air clarity?
Sunshine unlikely. Good visibility at first, turning poor as rain sets in.
How Cold? (at 900m)
-1 or -2C, rising slightly with time.
Freezing Level
600-700m, lifting slightly afternoon.
Planning Outlook
East to southeasterlies continue 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. 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.