Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Sunday 24th August 2014

Tomorrow | Monday | Tuesday

Forecast last updated on Saturday 23rd August 2014 at 4:25pm

How windy? (On the summits)

West backing southerly, typically 10mph until early afternoon, then increasing 15 to 20mph, locally stronger Snowdon range by evening.

Effect of wind on you?

Mostly small, increasing later.

How Wet?

Rain developing late on

The odd isolated shower in the morning, otherwise substantially dry until late afternoon, then patchy light rain developing from the south-west, and during the evening, rain setting in across the region.

Cloud on the hills?

Widely cloud free

The odd patch of low cloud early morning, otherwise the hills widely cloud free all day. By evening, patchy cloud may form on higher western summits where drizzly rain develops.

Chance of cloud free summits?

Greater than 90% most of the day.

Sunshine and air clarity?

Hazy sunshine, weakening through the day as upper cloud thickens, broadly clouding over by afternoon. Visibility excellent most of the day.

How Cold? (at 900m)

5 rising to 8C; still feeling cold for August.

Freezing Level

Above the summits; but a frost until after dawn in some sheltered inland valleys and corries.

Planning Outlook

All mountain areas of Britain from Monday 25th August 2014

Scotland: Continued cold nights early this week, with risk of ground frost. Substantially dry for several days ahead, the air very clear and many summits free of cloud, although a windier day on Monday. Atlantic fronts later in the week, bring risk of increased wind, cloud & rain to particularly western mountains. England & Wales: rain and areas of low cloud on Monday as an Atlantic low crosses southern Britain, improving on Tuesday and Wednesday, but remaining mixed overall midweek onward. Locally gusty winds northern England on Tuesday.

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