Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Thursday 28th August 2014

Today | Friday | Saturday

Forecast last updated on Wednesday 27th August 2014 at 4:05pm

Summary for all mountain areas

A narrow band of strong winds and rain will push northeast. The wind will then drop markedly but a further weak front will bring bursts of rain briefly back to some areas. Later across all mountain areas, a patchwork of sun and isolated showers. Windier western mountains again late in day.

Headline for Snowdonia National Park

A few showers; blustery toward evening.

How windy? (On the summits)

Southerly 35 to possibly 40mph with gusts to 55mph at dawn. Very soon 20mph for a few hours, but later in afternoon and evening strengthening again to 25 to 35mph, strongest Snowdon range.

Effect of wind on you?

Mostly small, but significant buffeting at dawn and again toward evening.

How Wet?

Rain clearing to showers

A wet start to the day, but soon the rain rare, and into afternoon, isolated, if any showers.

Cloud on the hills?

Extensive before mostly or all clearing

Extensive cloud with bases typically 400 to 700m just at first in rain. Will erratically lift through morning and middle of day, but into afternoon will clear all but possibly highest summits.

Chance of cloud free summits?

10% soon rising to 40% and into afternoon 90%

Sunshine and air clarity?

Patchwork of sunshine developing particularly near coast. Visibility becoming very good.

How Cold? (at 900m)

Between 9 and 11C, highest well inland

Freezing Level

Above summits

Planning Outlook

All mountain areas of Britain from Friday 29th August 2014

An area of low pressure will drift across Britain on Friday and Saturday bringing rain, and on Friday on mountains near the Irish Sea strong winds. A weakening front will bring a little rain and possibly in Scotland temporarily windy weather on Monday. Otherwise, Sunday and from Tuesday onwards will be substantially dry, and from the south gradually through next week it may well become very warm with extensive sunshine across most or all mountain areas.

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