Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Saturday'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.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
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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.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 4th July 2026
Last updated
Fri 3rd Jul 26 at
3:58PM
Summary for all mountain areas
Rain sweeps east through Scotland, persistent for several hours; easing afternoon but staying drizzly and dull west. Mild but feeling chilly in strong wind. Lakeland and Pennines very windy and drizzly with hill cloud. Drier in Wales, sunny breaks on low slopes. Warm Wales and England though notable wind chill.
Headline for Eryri / Snowdonia National Park
Cloud lifts to high terrain; blustery with buffeting
How windy? (On the summits)
Westerly 25 to 35mph, stronger gusts may develop at times around higher mountains, and downslope to the east early. Highest sustained speeds over and north of Snowdon group.
Effect of the wind on you?
Affecting comfortable walking and balance on higher tops and ridges, more frequent buffeting for periods highest areas, most strenuous conditions over northern hill groups with notable wind chill.
How Wet?
Fine drizzle high tops
Some drizzle in the air for periods, mostly western coastal hills and high tops, and amounting to very little. Little if any east Wales.
Cloud on the hills?
Lifting to higher terrain
Blanket cloud across hills toward west early, bases 500-600m or lower near coast, mostly above 600m further east. Bases lifting with breaks forming, tops of Berwyn group intermittently exposed. May occasionally break towards the Yr Wyddfa/Snowdon summit, but any clearing rare and brief.
Chance of cloud free summits?
Rising to 40%, to 60% east Wales
Sunshine and air clarity?
Largely cloudy and misty west Wales, sunny glimpses breaking out on eastern low slopes where visibility becomes very good.
How Cold? (at 900m)
10C rising to 13C afternoon. Feeling like 2 to 4C directly in the wind on tops.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 5th July 2026
Last updated
Fri 3rd Jul 26 at
3:58PM
How windy? (On the summits)
Westerly 20-30mph, some variability, gusty over tops and passes. May ease somewhat.
Effect of the wind on you?
Locally fairly small, but ease of walking becoming impacted on high exposed terrain, occasional buffeting gusts.
How Wet?
Little or no rain
Some fine drizzle in the air over high terrain where in cloud, chance of a few early patches of light rain from the west in the morning, this all fading for a dry afternoon.
Cloud on the hills?
Lifting to upper slopes
Fairly extensive high terrain with banks to at least middle slopes, patches to lower western slopes. Lifting trend with time to largely 800m and above, some breaks forming too, but caps return to the summits.
Chance of cloud free summits?
Rising to 50%
Sunshine and air clarity?
Increasingly sunny, particularly lower slopes, but weakened by high cloud; best sun east. Very good visibility.
How Cold? (at 900m)
10 or 11C, may rise slightly, up to 13C mid-Wales.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 6th July 2026
Last updated
Fri 3rd Jul 26 at
3:58PM
How windy? (On the summits)
Westerly 20-30mph, some variability and gusty over tops; a slight easing trend with time.
Effect of the wind on you?
Locally fairly small, but ease of walking becoming impacted on high exposed terrain, some buffeting gusts.
How Wet?
Little rain expected
Some fine drizzle in the air over high terrain where in cloud, some light patches of rain coming from the west, but more often dry.
Cloud on the hills?
Lifting to upper slopes
Fairly extensive high terrain with banks to at least middle slopes, patches to lower western slopes; high summits may be near the top of the cloud layer. Lifting trend with time to largely 800m and above, some breaks forming too, most often broken east.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Increasingly sunny on lower slopes but weakened by high cloud, best east. Very good visibility.
How Cold? (at 900m)
10 or 11C, rising up to 13C.
Freezing Level
Above the summits.
Planning Outlook
Rain, drizzle and low cloud persist over western hills from Lake District northward through the weekend and into early next week. Temperatures near average, but feeling cool in exposure to wind on tops, quite strong and gusty in the north. Northeast areas are drier with higher cloud bases but patchy rain reaches here too. Higher pressure south maintains drier conditions in Wales and the south Pennines but cloud and some drizzle will affect high western slopes from time to time; lighter wind here, but nuisance gusts in exposure. A drier and warmer window builds into the middle of next week: very warm in England and Wales, spells of sunshine spread northward, and lighter wind. Some showers and patchy rain continue through late week and next weekend, though detail is uncertain and more often dry.