Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Today'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.
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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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.
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
Sunday 26th July 2026
Last updated
Sat 25th Jul 26 at
4:00PM
Summary for all mountain areas
Spells of rain and showers affect most places during the day, some heavier falls toward eastern Scotland in afternoon. Cloud covering most high terrain, bases rising during day, breaks emerge at times. Blustery winds for England, Wales and southern Scotland, more moderate speeds for the Highlands.
Headline for Eryri / Snowdonia National Park
Windy, gusts gale-force. Showery rain, cloud on tops.
How windy? (On the summits)
West to northwesterly 30 to 35mph, gusts 40mph over the mountains.
Effect of the wind on you?
Affecting comfortable walking and balance over higher terrain, buffeting gusts, in places more challenging on exposed ridges. Notable wind chill.
How Wet?
Showery rain
Often raining over high terrain of Eryri/Snowdonia NP and north and western areas, a mix of drizzle with showery bursts. Occasional drier windows afternoon. Further east, the rain more showery, but at times more frequent too; generally easing later.
Cloud on the hills?
High terrain stays shrouded
Terrain above 800m likely in cloud most or all day, more widely extensive to mid-slopes early. A few higher breaks afternoon, but also widely lowering during more showery periods. Slopes towards the west and north coasts more often shrouded.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Best bursts of sun towards east Wales. Varied visibility, very good where out of cloud and rain.
How Cold? (at 900m)
10 or 11C. Feeling near to freezing in strongest wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 27th July 2026
Last updated
Sat 25th Jul 26 at
4:00PM
How windy? (On the summits)
Northwesterly 15-20mph, shifting southwesterly, easing briefly, rising again afternoon, to 25-35mph later.
Effect of the wind on you?
Fairly small, but walking becomes impacted over high terrain late in the day.
How Wet?
Substantially dry
Some fine drizzle over the high tops at times when in cloud, but more often entirely dry.
Cloud on the hills?
Lifting to tops with breaks
Banks of cloud at varied elevations in the morning, some clear windows between layers possible. Through morning, mostly lifting to summit height, a few breaks from time to time, but caps also returning to the summits, and perhaps more extensive afternoon.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Mostly sunny early with good visibility, trending towards cloudier conditions afternoon, best chance of sun glimpses east.
How Cold? (at 900m)
8 or 9C rising to 12C, staying elevated overnight and may rise slightly.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 28th July 2026
Last updated
Sat 25th Jul 26 at
4:00PM
How windy? (On the summits)
Southwesterly 25 to 40mph, gusts 50mph around higher northern tops.
Effect of the wind on you?
Strenuous walking conditions, frequent buffeting gusts knocking you off balance on exposed terrain. Marked wind chill.
How Wet?
Drizzle and some rain west
Drizzly rain frequent over western areas, some more steadier rain occasionally. Very little reaching eastern Wales.
Cloud on the hills?
Extensive, may persist west
Blanket cloud likely covering the hills, to lower elevations in west in the morning, 500-600m further northeast. Bases tend to rise, but may linger over west coast tops.
Chance of cloud free summits?
10% rising to 30% west, 60% east.
Sunshine and air clarity?
Largely cloudy, misty in west, poor visibility widely in rain; some improvements and brief moments of sun east Wales.
How Cold? (at 900m)
12C northwest, little variation all day, to locally 15C eastern hills, quite humid. Feeling like 2 to 5C directly in wind.
Freezing Level
Above the summits.
Planning Outlook
West-southwesterly winds will bring rain to most places early in the new week, some more prolonged heavier falls for western Scotland by Tuesday, accompanied by gales over high terrain, severe on Scottish tops, but rather humid for all, warm for England and Wales. Cooler air toward northwest Scotland moves across all of Scotland by Wednesday. Showery rain through mid-late week, some heavy and possibly thundery bursts, mainly Scotland. Likely drier for Wales and southern Pennines. More uncertainty toward next weekend and early the following week, but a risk of a broad zone of low pressure bringing areas of rain and heavy showers through early August.