Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Wednesday'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 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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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 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
Wednesday 1st April 2026
Last updated
Tue 31st Mar 26 at
4:22PM
Summary for all mountain areas
Rain spreads across Scottish Highlands from the northwest, turning to snow as temperature sharply drops. Strong, variable wind here with gale-force gusts. Early hill cloud England and Wales lifts, best breaks east for some sun glimpses. Patchy rain into Snowdonia, Lakeland, and N Pennines late in the day.
Headline for Eryri / Snowdonia National Park
Cloud lifts to high terrain; becoming blustery later
How windy? (On the summits)
Westerly 15-20mph most of the day, some stronger gusts on upper slopes. Through afternoon a strengthening trend, later shifting northwesterly, sustained speeds of 35mph over high terrain with stronger gusts.
Effect of the wind on you?
Fairly small much of the day, but becoming noticeable through afternoon, increasingly strenuous in exposure with buffeting gusts beginning to challenge stability.
How Wet?
Little if any rain until later
Occasional spotty drizzly rain drifting onto the hills from the west, but likely dry most of the day. Increasing risk of patchy rain approaching from the northwest as afternoon goes, more frequent for a few hours late in the day.
Cloud on the hills?
Covering higher slopes, lowest bases west
Cloud banks over higher tops, most frequent or persistent toward Cardigan Bay above 600-800m. Mostly above 800m by mid-morning near and east of A5 corridor. Late in the day, beginning to fill in more extensively to the middle slopes from the northwest
Chance of cloud free summits?
30%
Sunshine and air clarity?
Patchy sunshine breaking out here and there, perhaps more frequently for a time afternoon, trending cloudier late in the day. Visibility good below cloud.
How Cold? (at 900m)
3C at dawn, but likely 4C well into the day. Rising to 5C for a few afternoon hours, then a sharp drop into evening, 2 or 3C, further dropping overnight. Feeling nearer -4C if exposed to wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 2nd April 2026
Last updated
Tue 31st Mar 26 at
4:22PM
How windy? (On the summits)
Northerly or variable 15mph or less most of the day. Orienting southwesterly late in the day, 15-20mph.
Effect of the wind on you?
Small
How Wet?
Likely dry
Some light rain may approach western slopes as evening approaches.
Cloud on the hills?
Rising to just high terrain, summit breaks
In the morning, most cloud Snowdon group to Carneddau, 700m and up, a risk more extensive around dawn. Fog lifts to mostly just summits, good chance of clear summits for several hours.
Chance of cloud free summits?
Rising to 60%
Sunshine and air clarity?
Often or mostly sunny. Excellent visibility.
How Cold? (at 900m)
-1C, lifting to 0C.
Freezing Level
600-700m, lifting towards 800-900m, then off the summits overnight.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 3rd April 2026
Last updated
Tue 31st Mar 26 at
4:22PM
How windy? (On the summits)
Southwesterly 30-40mph, powerful gusts likely over high terrain and downslope to the east.
Effect of the wind on you?
Conditions often arduous in exposure, feeling chilly despite mild temperatures, gusts persistently challenging balance.
How Wet?
Patchy rain
Rain comes and goes over most hills throughout the day, typically light and patchy in nature.
Cloud on the hills?
Extensive
Cloud blankets high terrain likely all day, bases regularly down to the middle slopes, or lower slopes on western aspects, particularly during rain. Some higher breaks near/north of the A5, but breaks above 700-800m are unlikely.
Chance of cloud free summits?
10%
Sunshine and air clarity?
A few glimpses of sun around Carneddau where visibility good, but otherwise overcast and dull.
How Cold? (at 900m)
4C early, little change with added height; lifting up to 7C. Feeling like -5 to -7C in direct wind.
Freezing Level
Above the summits
Planning Outlook
A brief lull in unsettled weather on Thursday with mostly dry, sunny conditions and lighter wind. Atlantic weather patterns and west-southwesterly winds follow behind on Friday and into the Easter weekend, but day-to-day detail is uncertain. Temperature and wind will be variable, periods of gales and possibly often cold over the mountains with snow and hail showers at times to lower elevations at least in Scotland, sometimes more widely. Precipitation generally most frequent west and northwest, though bands of heavy rain will sweep east at times. Some brief windows of drier and brighter conditions, as well as milder days in England and Wales, occasionally milder Scotland too, but soon followed by more Atlantic low pressure.