Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Saturday'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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra 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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 13th June 2026
Last updated
Fri 12th Jun 26 at
3:58PM
Summary for all mountain areas
Chilly and showery west Scottish highlands, fewer showers east but several afternoon hours of more widespread rain, later easing. Some early showers from south Scotland to north Wales, largely fading with sun breaks; south Wales is dry and brighter. Strong wind widely, easing Wales and north Scotland.
Headline for Eryri / Snowdonia National Park
Blustery high tops early; early cloud and drizzle, improving
How windy? (On the summits)
Northwesterly 25-30mph at dawn, easing to 20-25mph most of the day, or as low as 15mph southernmost hills. A risk of occasional swathes of stronger wind spreading over northern hills.
Effect of the wind on you?
Walking may be strenuous with buffeting gusts and wind chill early, easing to fairly small effects in most areas but momentary deteriorations in the north remain possible.
How Wet?
Any early light rain/drizzle soon fades
Damp with fine drizzle over the high tops with a few patches of rain drifting from the northwest in the early hours. East Wales hills dry, and likely widely dry by noon.
Cloud on the hills?
Lifting to high terrain, breaks forming with time
Fairly extensive above 600-700m in the morning. A general lifting and breaking trend with time, though banks cling to terrain above 800-900m, and some variable lower banks on western slopes too. Breaks to summits increasingly forming later, but always a risk of banks returning to high tops.
Chance of cloud free summits?
30% rising to 60%
Sunshine and air clarity?
Glimpses of sunshine, most often cloudy to the west. Good visibility but a light haze towards coasts.
How Cold? (at 900m)
6C rising to 10C. Feeling below freezing in early direct wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 14th June 2026
Last updated
Fri 12th Jun 26 at
3:58PM
How windy? (On the summits)
Northwesterly 15mph at dawn, gusting 20-25mph over high tops and passes, easing and becoming variable, 10mph or less.
Effect of the wind on you?
Some notable gusts over high terrain just at and before dawn, but soon small.
How Wet?
No rain expected
Cloud on the hills?
Patchy banks on high slopes, most north
Variable banks of cloud above the mid-slopes at dawn, some thin mist in sheltered valleys as well; many slopes start clear. Cloud will lift to largely above 800m, mostly dissipating, but clinging to northern slopes for a few extra hours.
Chance of cloud free summits?
Rising to 70%
Sunshine and air clarity?
Sun increasingly breaks out but probably weakened by high cloud. Very good visibility.
How Cold? (at 900m)
7C rising to 12 or 13C; some chance that northernmost slopes stay cooler.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 15th June 2026
Last updated
Fri 12th Jun 26 at
3:58PM
How windy? (On the summits)
Low confidence: generally southerly 15-25mph, some risk stronger over high tops, and also chance of a morning lull.
Effect of the wind on you?
Probably fairly small, but a risk of stronger breezes impeding walking on high terrain.
How Wet?
Showery rain, slowly clearing afternoon
Showery rain through the morning, may set in for a few hours and a risk of some heavier falls. Rain begins to break through afternoon, but may be slow to clear.
Cloud on the hills?
Caps may cling to high summits
Patchy banks of cloud early at various heights, mostly south/western slopes and many clear areas too. Bases lift to largely 900m and up, some breaks but caps may cling to high summits, and may fill in again for periods afternoon.
Chance of cloud free summits?
Rising to 60%
Sunshine and air clarity?
Often cloudy, a few glimpses of weak sun from time to time. Variable visibility, sometimes good but reduced in rain.
How Cold? (at 900m)
9 to 11C; some uncertainty could be a degree warmer or cooler.
Freezing Level
Well above the summits.
Planning Outlook
Sunday will be a clearing day for most under a core of high pressure: early rain in Scottish Highlands easing, most cloud lifting off all hills except the north of Scotland, and good sunshine through weakened by high cloud. Temperature more widely mild, warm in Wales. Into next week, a mixed southwesterly pattern remains, windy at times with periods of rain, drizzle and low cloud most persistent in the west. Warmest in England and Wales, but may stay cooler in Scotland as low pressure to the northwest recycles air from the north Atlantic back onto the Munros. Tuesday into Wednesday shows indications of a wetter and windier spell. Pressure generally trending higher later in the week, but extensively settled weather remains elusive until at least the following week.