Includes all summits in the the northern half of Wales from Pumlumon northwards.
Eryri / Snowdonia National Park
Sunday 15th September 2024
Last updated
Sat 14th Sep 24 at
4:05PM
Often strong winds across most hills, feeling chilly especially Scottish tops. A zone of frequent rain and heavy showery bursts passes eastwards across the Highlands, particularly northern areas. A front moves slowly south over England and Wales bringing rain, drizzle and low cloud, gradually clearing northern England later.
Windy, rain, drizzle and low cloud, much of the day west.
West to southwesterly 30 to at times 40mph, strongest over Snowdon range until later afternoon.
Walking often impeded by the wind, and sometimes arduous with considerable wind chill.
Rain and drizzle, manly western hills
A mix of periods of drizzly rain - mostly western hills and one or two bursts of heavier rain. Little rain mid Wales, particularly Berwyn mountains.
Mountains mostly covered; highest cloud base east Wales
Cloud will often shroud mountains from lower slopes upward toward west coast (lowest Lleyn peninsula to Snowdon). Highest cloud bases will be east Wales and perhaps mid Wales where cloud rarely below 500m, and breaks to 750m.
10%, to 30% east Wales
Little if any sunshine - occasional sun here and there lower slopes east Wales. Hazy and visibility often poor in drizzle.
9C, but where exposed to the wind, will feel near or below freezing point on highest tops.
Above the summits.
Eryri / Snowdonia National Park
Monday 16th September 2024
Last updated
Sat 14th Sep 24 at
4:05PM
Varied direction; 10mph or less, locally southerly 10-15mph on/nearest Llyn peninsula.
Negligible
Rain very unlikely
Very little if any
90%
Bright sunshine and superb visibility although ribbons of fog some valleys will disperse through morning.
9 rising to 14C
Above the summits.
Eryri / Snowdonia National Park
Tuesday 17th September 2024
Last updated
Sat 14th Sep 24 at
4:05PM
Variable and little wind at first, becoming easterly, tending to increase 10 to 20mph, gustier later in day.
Small, but starting to feel breezier over the hills.
Rain not expected
Hills clear
Possible brief patches of misty cloud drifting onto slopes in eastern mid-Wales early in day, soon all dispersing.
Above 90%
Extensive sunshine. Some mist or haze in valleys early in day, otherwise visibility excellent.
13C, locally slightly warmer western areas into afternoon. (Tops warmer than valleys early morning).
Above the summits.
High pressure becomes established over Britain at the start of the new week, drifting toward Scandinavia by midweek. A weak front grazing past northwest Scotland on Tuesday brings low cloud and some possible dampness for a time here. Otherwise, very warm and particularly on western mountains often sunny. However, particularly in the mornings low cloud coming in off the North Sea will often envelop more eastern mountains from midweek. Fresh easterly breezes affecting England and Wales in the second half of the week, locally becoming very gusty. Lighter winds generally in Scotland.