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.
Snow and hail showers
Periods of bright or sunny conditions mixed with showers or flurries of snow and hail, at times falling toward lower elevations.
Cold
Low temperatures over the mountains all day. Suitable protective clothing required. Beware of significant wind chill at higher levels.
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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.
Snow and hail showers
Periods of bright or sunny conditions mixed with showers or flurries of snow and hail, at times falling toward lower elevations.
Cold
Low temperatures over the mountains all day. Suitable protective clothing required. Beware of significant wind chill at higher levels.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 16th April 2024
Last updated
Tue 16th Apr 24 at
7:50AM
Summary for all mountain areas
Staying chilly with northwesterly winds. Higher summits near or below freezing point all day. A mainly dry and bright start, local showers near some western coasts. A scattering of showers more widely into afternoon, with hail and snow. More frequent hill snow developing for the northern Highlands during the afternoon.
Headline for Eryri / Snowdonia National Park
Chilly winds. Showery morning, snow tops. Sunnier afternoon.
How windy? (On the summits)
Northwesterly 25 to 40mph, strongest Yr Wyddfa/Snowdon area; speeds likely to vary, strongest at first and again later.
Effect of the wind on you?
Prepare for considerable wind chill across higher tops. Buffeting over exposed terrain, especially northern summits.
How Wet?
Showers with snow on high tops, fading
A few showers mostly hills near to coasts early morning. A scattering of showers spreading inland into middle of day, mostly brief. Fading out with time to be mostly dry afternoon. Some snow falling above 700-800m, also soft hail.
Cloud on the hills?
Varied, some breaks to tops
Banks of cloud capping higher slopes in the morning, lowest toward north and near to west coast, varied for a time in showers. Lifting toward upper slopes with breaks forming to tops into afternoon.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Occasional sun, best into afternoon. Visibility excellent, but reduced in showers.
How Cold? (at 900m)
0C rising to 2C. Wind chill feeling like -10C on tops.
Freezing Level
900m early morning, rising just above highest summits. Likely to drop below 800m into night.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 17th April 2024
Last updated
Tue 16th Apr 24 at
7:50AM
How windy? (On the summits)
Northerly 20 to 35mph, likely strongest in the morning.
Effect of the wind on you?
Marked wind chill and blustery over higher terrain especially in the morning, buffeting exposed tops; improving.
How Wet?
Showers, risk some more persistent rain
Intermittent showers or snow flurries on highest tops, locally frequent in northern areas. Risk of steadier drizzly rain pushing in from the west for a time especially by afternoon.
Cloud on the hills?
Varied on tops
Patchy cloud on higher slopes in the morning, may come and go over northern tops for a few hours. Some breaks inland for a time, but if rain develops, cloud lowering across many higher slopes.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Fairly cloudy, a little sun. Visibility very good.
How Cold? (at 900m)
-2C rising to +1C. Wind chill feeling like -10C or below early in the day, -5C by afternoon.
Freezing Level
700m, plus possible slight frost inland valleys at first. Rising just above highest tops. May lower slightly by dusk.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 18th April 2024
Last updated
Tue 16th Apr 24 at
7:50AM
How windy? (On the summits)
Northwest turning westerly, 15-20mph in morning, likely strengthening during day to 30mph by evening, 35-40mph after dark.
Effect of the wind on you?
Fairly small at first, becoming increasingly blustery with marked wind chill on higher terrain later in day.
How Wet?
Mostly dry
One or two brief showers drifting eastwards, but much of the daytime dry. By dusk into night, drizzly rain likely developing from the northwest.
Cloud on the hills?
Lifting to higher slopes, may clear
Banks of cloud covering some slopes in the morning, plus patchy mist inland valleys. Mostly lifting and breaking up toward the tops, but may linger near coast.
Chance of cloud free summits?
50%
Sunshine and air clarity?
A little sun, fairly cloudy skies. Visibility very good.
How Cold? (at 900m)
1C rising to 3C. Wind chill feeling like -5C as speeds increase.
Freezing Level
Slight frost some valleys and sheltered higher terrain at dawn. Otherwise above freezing to the summits.
Planning Outlook
Staying near freezing on higher mountains into midweek, then a rise of temperature during Thursday with rain and drizzle coming in from the west, wettest in western Scotland. Cooler again for the Highlands on Friday with scattered showers, of snow on high tops, briefly hail. High pressure builds from the west into the weekend, bringing dry conditions and light winds for many. Weak fronts grazing northwest Scotland may produce patchy rain and lower cloud here for a time on Saturday. A more settled outlook into next week with more sun and lighter winds for many areas. Isolated April showers some days. Air temperature may stay cool, but pleasantly warm in the sun. Slight frosts more common.