Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Today'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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Chilly
Air temperature typically 1 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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Chilly
Air temperature typically 1 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 22nd October 2025
Last updated
Tue 21st Oct 25 at
4:36PM
Summary for all mountain areas
Chilly west to southwest winds, strong for a time north Highlands, with showers across western hills, but few if any reaching eastern areas.Cloud bases lifting to higher slopes, but persisting across western tops, whilst eastern hills seeing good clearances with the best of the sunshine, albeit weak due to high cloud.
Headline for Eryri / Snowdonia National Park
Mostly dry, bar the odd shower, and a moderate breeze.
How windy? (On the summits)
West turning southwesterly 15 to 20mph. Uncertain into night, variable then easterly, may start to increase.
Effect of the wind on you?
Mostly small during daytime. Possible deterioration into night.
How Wet?
Odd showers
One or two brief light showers, mostly west coastal areas. Into night, possibility of some rain developing, may well mostly remain further south, leaving just areas of showers.
Cloud on the hills?
Patches western tops, clearing
Some patchy cloud on higher western slopes, mostly above 700m, tending to disperse. Eastern hills largely clear. If rain arrives later, cloud then lowering.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Some sun mostly weakening as high cloud tends to thicken. Visibility excellent.
How Cold? (at 900m)
4 or 5C. Feeling just below freezing in the wind.
Freezing Level
Above the summits
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 23rd October 2025
Last updated
Tue 21st Oct 25 at
4:36PM
How windy? (On the summits)
Still uncertainty - N-NW'ly may turn toward W, speed likely vary, 25-40mph, may strengthen to 50mph for periods.
Effect of the wind on you?
Expect blustery conditions and significant wind chill, may deteriorate further to make walking difficult.
How Wet?
Showery, risk constant rain early in the east.
Perhaps early in the day still constant precipitation in east Wales. Otherwise, generally showery, more frequent precipitation on hills nearer to coasts, falling as snow on highest summits, some heavier showers with hail.
Cloud on the hills?
Varied on high tops
Often capping higher slopes, varying in and out of showers. Higher breaks more frequent well inland and eastern areas.
Chance of cloud free summits?
40%
Sunshine and air clarity?
Some bursts of sun, mainly east mid-Wales. Visibility varied, poor in showers, intermittently very good.
How Cold? (at 900m)
2C. In stronger winds, chill factor feeling like -10C.
Freezing Level
Close to highest summits above 1000m.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 24th October 2025
Last updated
Tue 21st Oct 25 at
4:36PM
How windy? (On the summits)
Westerly 25 to 40mph
Effect of the wind on you?
Be prepared for rather arduous conditions through the day with significant wind chill and buffeting for periods.
How Wet?
Clusters of showers
Clusters of showers, some heavy, will edge in from the west through the day. May give frequent rainfall across western mountains.
Cloud on the hills?
Fairly extensive
Hill fog likely fairly extensive above 600-800m, with perhaps occasional patches to lower slopes. Breaks to the tops likely to be rather fleeting away from east Wales.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Glimpses of sun through high cloud between the showers. Visibility often poor due to rain.
How Cold? (at 900m)
3C, but feeling more like sub -5C in direct exposure to the strongest winds.
Freezing Level
Above the summits
Planning Outlook
A complex weather situation around midweek with various centres of low pressure drifting around slowly. Areas of rain and showers, but also drier moments - possibly Thursday often dry in eastern Scotland and northern England - beware of a deterioration from the northwest during Thursday with gales and rain setting in. Significantly colder later in the week as winds turn northerly. Freezing level dropping to 800-1000m into the weekend, lowest in northern Scotland. A mix of sunshine and showers falling as snow on high terrain, most frequent in north-facing areas. Falling week, less cold, but frequent rain in the west.