Snowdonia National Park Forecast

Also includes higher summits south to Plynlimon.

Viewing Weather Forecast for Thursday 28th July 2016
Forecast last updated on Thursday 28th July 2016 at 7:15am

Today | Friday | Saturday

Summary for all mountain areas

Rain and particularly on western mountains persistent very low cloud near and south of the track of a shallow low (that will cross southern Scotland). Locally blustery. Fine with little wind and cloud clearing many summits much of Highlands, but drizzly showers far north.

Headline for Snowdonia National Park

Rain mostly clearing. Persistent fog western hills. Blustery.

How windy? (On the summits)

South, later in morning, veering westerly, between 25 and temporarily in morning, 35mph.

Effect of wind on you?

Will impede walking on higher areas, and temporarily make walking difficult.

How Wet?

Frequent rain

Rain much of morning; risk heavy bursts. Still a few bursts of rain afternoon, and often drizzly mountains near west coast.

Cloud on the hills?

Very extensive; rarely lifting western hills.

Western hills: almost blanket low cloud throughout daylight. May briefly lift, locally to higher tops rarely. Elsewhere: frequently cloud shrouding the hills from about 500m up, but from early afternoon, breaks to higher tops, though often brief, with further pulses of low cloud. Most breaks Berwyn mountains.

Chance of cloud free summits?

Almost nil west, to in afternoon 30% east

Sunshine and air clarity?

Sunshine occasionally afternoon, mainly well inland. Fog extensive across the hills. Lower down in afternoon well inland, visibility often very good or excellent.

How Cold? (at 900m)

10C.

Freezing Level

Above the summits.

Planning Outlook

All mountain areas of Britain from Friday 29th July 2016

Westerly or northwesterly winds from Friday until Tuesday will bring showers, mainly over the weekend, but particularly on western mountains, total rainfall small. Cloud base will often be much higher than recently, particularly around the Irish Sea. Although very likely fine on Tuesday, later in the day, rain and low cloud will approach from the west (timing of this uncertain as yet).

In association with
Mountaineering Council of Scotland sportscotland Association of Mountaineering Instructions