Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Today's Forecast
Moderate breeze, fairly small impact, but chilly
A noticeable breeze, feeling distinctly chilly. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
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.
Clear
Excellent or superb visibility, no navigation issues.
Cold
Near or below freezing on highest terrain all day. Considerable or significant chill factor if exposed to strong winds. Prepare for winter conditions - suitable protective clothing required.
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Moderate breeze, fairly small impact, but chilly
A noticeable breeze, feeling distinctly chilly. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
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.
Clear
Excellent or superb visibility, no navigation issues.
Cold
Near or below freezing on highest terrain all day. Considerable or significant chill factor if exposed to strong winds. Prepare for winter conditions - suitable protective clothing required.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 27th April 2024
Last updated
Sat 27th Apr 24 at
7:20AM
Summary for all mountain areas
Continuing cold with higher areas below freezing point, particularly in the morning. Showers, mostly hail flurries developing, becoming frequent NW Scotland. Noticeable wind chill Wales. Very clear air.
Headline for Eryri / Snowdonia National Park
Fairly light wind. Cold. Hail flurries.
How windy? (On the summits)
Easterly 15mph but risk 20mph in places not necessarily on higher slopes.
Effect of the wind on you?
Mostly small. Marked wind chill, especially in the morning.
How Wet?
Showers; hail
A few showers or hail flurries mainly mid to late morning onwards. Small risk of the precipitation, of snow above 750m, more frequent for an hour or two afternoon or evening.
Cloud on the hills?
Summits extensively cloud free
Fragments of cloud shrouding higher slopes now and again, mainly in and after precipitation.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Patchy sunshine, mainly Snowdon range; cloudy mid Wales. Excellent or superb visibility.
How Cold? (at 900m)
Close to or just below freezing point after dawn. Reaching as high as 5C in the afternoon.
Freezing Level
800m after dawn but rising above the summits by about midday.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 28th April 2024
Last updated
Sat 27th Apr 24 at
7:20AM
How windy? (On the summits)
Northwest backing westerly; 15mph to perhaps for a few hours 20mph.
Effect of the wind on you?
Small.
How Wet?
Showers
From before dawn in east Wales, risk of a few hours of rain, or above 750m snow. This will clear. In afternoon, scattered showers developing, of hail higher tops.
Cloud on the hills?
Most summits clearing; may come and go above 900m
Risk from dawn persistent fog higher areas in precipitation east Wales. This will more or less all clear through morning. Otherwise, cloud base soon 900m or above.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Patches of sunshine spreading inland. Excellent visibility generally, but poor n precipitation.
How Cold? (at 900m)
0C after dawn but extensively 5C by mid afternoon although nearer 2C on summits closest to the coast.
Freezing Level
Near freezing point higher summits until mid morning, then above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 29th April 2024
Last updated
Sat 27th Apr 24 at
7:20AM
How windy? (On the summits)
Southerly between 20 and 30mph; although may reach 35mph for periods in west Wales.
Effect of the wind on you?
Will impede ease of walking widely, locally giving considerable buffeting and wind chill.
How Wet?
Rain mainly west Wales late in day
Bursts of showery rain from time to time, mainly west Wales. Late afternoon or evening, the rain may set in for a few hours (most likely west Wales).
Cloud on the hills?
Mostly confined to or above the tops
Summits may well be free of cloud extensively, but in rain higher slopes will become covered.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Weak sunshine occasionally, generally through layers of high level cloud. Very good or excellent visibility but deteriorating to become poor in rain.
How Cold? (at 900m)
2C rising to 4C.
Freezing Level
Above the summits.
Planning Outlook
Less cold next week with freezing levels almost constantly above highest summits. Rain from time to time, particularly across Wales. Wind direction will be predominantly easterly. This will bring in frequent low cloud to more eastern mountains, with highest cloud base often near the west coast.