Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Tuesday'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.
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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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.
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
Tuesday 7th July 2026
Last updated
Mon 6th Jul 26 at
4:21PM
Summary for all mountain areas
Windy over high terrain, strongest in the morning, again later in Scotland. Damp and murky north and western Highlands, more persistent rain at times. Some improvement southern Highlands in afternoon. Often dry for northern England, but higher fells shrouded in cloud. Brighter for Wales as cloud thins.
Headline for Eryri / Snowdonia National Park
Blustery start, easing. Patchy cloud, tending to clear.
How windy? (On the summits)
West-northwesterly 30mph from dawn into early morning, with some stronger gusts not just on high tops. Easing to 20mph by middle of day, often less into afternoon, then rising a little to 20-25mph by evening.
Effect of the wind on you?
Ease of walking affected early in the morning, some buffeting gusts affecting stability. Becoming fairly small.
How Wet?
Largely dry
Some patches of light drizzly rain drifting along coastal slopes mainly in north in morning, but most places entirely dry.
Cloud on the hills?
Lifting and mostly breaking afternoon
A fairly extensive bank on upper slopes in the morning; highest tops near or above the top of the cloud sheet. A lifting trend and much cloud breaking up, though banks will cling to high western slopes for periods.
Chance of cloud free summits?
70% (summits above cloud early)
Sunshine and air clarity?
Sun increasingly breaking out widely; high tops may be in sun above cloud most of the day; thin high cloud. Very good visibility.
How Cold? (at 900m)
11 or 12C, rising to 14C, or slightly higher towards mid-Wales; little or no change with added height. Feeling like 3C if exposed to early wind on tops.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 8th July 2026
Last updated
Mon 6th Jul 26 at
4:21PM
How windy? (On the summits)
West soon southwesterly 15 to 20mph.
Effect of the wind on you?
Fairly small.
How Wet?
No rain expected
Cloud on the hills?
Hills clear, some west coast fog
Patchy cloud on western hill slopes early morning, higher terrain clear. All dispersing, but possible low-level coastal fog near Llyn Peninsula for periods.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Sunshine and thin fair-weather cloud. Visibility very good.
How Cold? (at 900m)
14C rising to 17C afternoon.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 9th July 2026
Last updated
Mon 6th Jul 26 at
4:21PM
How windy? (On the summits)
Variable direction 5 to 10mph.
Effect of the wind on you?
Negligible.
How Wet?
No rain expected
Cloud on the hills?
Hills clear
Patchy mist inland valleys at dawn, possible local coastal fog at times, but the hills clear.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Generally sunny, thin high cloud. Visibility very good, some low-level haze.
How Cold? (at 900m)
16C rising to 19C afternoon.
Freezing Level
Above the summits.
Planning Outlook
A drier and warmer window builds into the middle of this week: very warm in England and Wales. Still low cloud persistent especially toward northwest Scotland, but spells of sunshine spread northward, and lighter wind. Some rain late this week in western Scotland though mostly light and patchy, many places dry. High pressure expands across Scotland through the weekend bringing more widely clearer hills, dry and warm conditions in the extended outlook into mid July - easterly winds likely develop, particularly England and Wales; a chance of some isolated thunderstorms occasionally.