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.
Mild
Temperatures +5C or above on higher summits. Comfortable temperatures on lower terrain, but feeling cool if exposed to breeze higher up, especially if stationary. Pack extra 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.
Mild
Temperatures +5C or above on higher summits. Comfortable temperatures on lower terrain, but feeling cool if exposed to breeze higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 22nd October 2024
Last updated
Tue 22nd Oct 24 at
7:57AM
Summary for all mountain areas
Upland wind in the Scottish Highlands but lighter elsewhere. Frequent showers or drizzle in the morning, falling as sleet or hail on the higher Scottish summits. These will tend to ease in the afternoon causing the extensive morning cloud to lift and break a little.
Headline for Eryri / Snowdonia National Park
Cloud and drizzly showers after dawn, then well scattered showers.
How windy? (On the summits)
West to southwesterly around 20mph. Strongest speeds in the morning.
Effect of the wind on you?
Fairly small overall, but there may be some buffeting from gusts, most likely in eastern areas.
How Wet?
Patches of rain and drizzle, easing to a few showers.
Drizzly rain over a few hours, most persistent in the western mountains in the morning. Very little reaching the easternmost mountains. Easing into the afternoon when it may fade completely late in the day.
Cloud on the hills?
Widespread but lifting into the afternoon
Cloud base may be in the range 500 to 700m, but often a couple of hundred metres higher east Wales. However, fog may descend to lower slopes for periods western mountains. Tending to rise and break a little into the afternoon, once rain eases.
Chance of cloud free summits?
10% becoming 40%
Sunshine and air clarity?
Little or no sun. Very good visibility for periods, but may become misty or murky - perhaps extensively west Wales.
How Cold? (at 900m)
7C. Feeling around 0C in the wind.
Freezing Level
Above the summits
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 23rd October 2024
Last updated
Tue 22nd Oct 24 at
7:57AM
How windy? (On the summits)
Southerly, typically 15mph, but perhaps 20 or 25mph higher tops, most likely Snowdon range.
Effect of the wind on you?
Mostly fairly small.
How Wet?
Drizzly, mainly toward Lleyn peninsula
Extensively dry. However, a few pockets of drizzle, mostly Lleyn peninsula westernmost slopes north to Snowdon.
Cloud on the hills?
Extensive higher areas; very low cloud base near Lleyn peninsula
Lleyn peninsula westernmost slopes north to Snowdon: Fog above 300 to 450m all day. Otherwise, cloud base typically 600 to perhaps 900m, highest Berwyn mountains and near and north of A5 (toward Carneddau).
Chance of cloud free summits?
20%
Sunshine and air clarity?
Occasional sunshine may come through mainly lower slopes. Persistent haze, misty where drizzly.
How Cold? (at 900m)
6C. Feeling below freezing directly in the wind.
Freezing Level
Above the summits
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 24th October 2024
Last updated
Tue 22nd Oct 24 at
7:57AM
How windy? (On the summits)
Southerly 40 to 60mph, strongest near the west coast. Powerful down-slopes gusts.
Effect of the wind on you?
Challenging walking conditions. Gusts will affect your balance and could possibly blow you over. Significant wind chill.
How Wet?
Pockets of drizzly rain
Many regions will remain mostly dry, but pockets of persistent drizzly rain on coastal upslopes. Some of these may penetrate inland at times.
Cloud on the hills?
Blanket of cloud
Cloud will blanket the hills from 500m or so up for much of the day, with the cloud base highest towards the north.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Little sunshine and hazy.
How Cold? (at 900m)
7C. Feeling around -5C in the wind.
Freezing Level
Above the summits.
Planning Outlook
Generally humid and windy conditions over the next few days bringing lots of low cloud and some drizzle on western coasts. More organised rain at times from Friday and into the weekend but the potential development of a low pressure near Ireland is giving some uncertainty. Temperatures likely fluctuating over the weekend with higher summits below freezing at times.