Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Friday's Forecast
Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Mostly dry, partly cloudy
Dry most or all day. Variable amounts of sun and cloud, occasional patches drifting onto some higher slopes, but most summits often clear.
Cool
Temperatures above freezing but typically no higher than +5C over the tops - if exposed to brisk winds will feel sub-zero. May not feel cold when climbing, but noticeably cold when stationary. Carry suitable clothing.
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Light wind, negligible impact
Little wind or walking hardly affected by the wind, but feeling chilly if exposed on tops. 10-15mph or less.
Mostly dry, partly cloudy
Dry most or all day. Variable amounts of sun and cloud, occasional patches drifting onto some higher slopes, but most summits often clear.
Cool
Temperatures above freezing but typically no higher than +5C over the tops - if exposed to brisk winds will feel sub-zero. May not feel cold when climbing, but noticeably cold when stationary. Carry suitable clothing.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 26th April 2024
Last updated
Thu 25th Apr 24 at
4:30PM
Summary for all mountain areas
Light winds but cool or cold feeling across the UK. Any morning cloud will break and lift above summits, but may temporarily re-form during any afternoon showers. Showers on high ground will fall as snow flurries or hail in many regions. Patchwork of sunshine.
Headline for Eryri / Snowdonia National Park
Morning cloud lifting. Risk of drizzly showers.
How windy? (On the summits)
Light winds, 5 to perhaps 15mph. Variable direction but tending to be easterly. Highest speeds in the evening.
Effect of the wind on you?
Negligible or small. Risk of marked wind chill, especially North Wales.
How Wet?
Risk of drizzly showers
Occasional drizzle or drizzly shower near Yr Wyddfa/Snowdon range. Snow flurries on higher ground. Mostly dry Cadair Idris southwards.
Cloud on the hills?
Lifting above most tops
Any morning hill fog will lift and clear summits. Patches of cloud re-forming on higher slopes, especially during and after showers. Bases rising in the afternoon.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Widespread sunshine in morning become patchy as clouds form in the afternoon. Good visibility.
How Cold? (at 900m)
Near or just below freezing at first, tending to rise marginally through the day. Coldest in N Wales where it may feel -5C in wind.
Freezing Level
800-1000m near Yr Wyddfa/Snowdon range, but may down to 600m in a few sheltered location. Above summits near Cadair Idris.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 27th April 2024
Last updated
Thu 25th Apr 24 at
4:30PM
How windy? (On the summits)
Easterly 10 to 15mph but risk 20mph.
Effect of the wind on you?
Mostly small. Marked wind chill, especially in the morning.
How Wet?
Light showers
Mostly dry morning. Light showers forming in the afternoon. Risk of heavy rain overnight.
Cloud on the hills?
Morning cloud clearing
Any morning fog soon clearing to leaver higher ground clear.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Patchy sunshine developing. More widespread in morning away from hill fog. Good visibility.
How Cold? (at 900m)
-2C in the morning, when it may as cold as -10C in the wind. Rising to 3C in the afternoon.
Freezing Level
700m in the morning rising to above the summits in the afternoon.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 28th April 2024
Last updated
Thu 25th Apr 24 at
4:30PM
How windy? (On the summits)
Details uncertain. Mostly likely light winds with variable direction. Risk of northwesterly 15 to 25mph.
Effect of the wind on you?
Likely mostly small, comfort of walking may be affected late in the day.
How Wet?
Risk of occasional showers
Light showers possible on and off through the day, but more frequent in the afternoon. Will fall as snow or hail flurries on high ground. Small risk of persistent heavy rain.
Cloud on the hills?
Summits soon cloud free
Any fragments of cloud in the morning on higher slopes and summits soon disappearing. Risk of widespread low cloud forming if rain moves in.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Soon widespread sunshine through thin, high cloud. Excellent visibility.
How Cold? (at 900m)
0C in the morning. Rising to 2 to 4C by mid-afternoon.
Freezing Level
900 to 1000m in the morning. Soon above the summits.
Planning Outlook
Cool and intermittently showery weather with mostly light winds over the weekend and the early part of next week. Small chance of a small region of low pressure bringing heavy rain on Sunday, but it is increasingly likely this will be over the North Sea. Indications of drier and slightly warmer weather from mid-week onwards.