Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Wednesday 28th January 2015
Forecast last updated on Tuesday 27th January 2015 at 12:40pm

Tomorrow | Thursday | Friday

How windy? (On the summits)

Westerly, in the range 50 to 70mph. Sudden squalls may bring gusts locally to 90mph.

Effect of wind on you?

Difficult walking conditions and severe wind chill even low levels. Any mobility often tortuous higher levels. Severe or extreme wind chill.

How Wet?

Frequent snow & hail

Soon snow showers, possibly frequent into the afternoon giving almost constant snow for an hour or so with risk whiteout;.

Cloud on the hills?

Often covering the hills

Rapidly changing cloud base; extensively covering higher areas, and dropping below 500m near precipitation. Rare breaks to higher tops west; intermittently clearing east.

Chance of cloud free summits?

20% west to 60% east

Sunshine and air clarity?

Occasional sunshine, mainly well inland. Visibility briefly excellent, but frequently appalling or near zero where in cloud and snow/blowing snow.

How Cold? (at 900m)

Suddenly dropping several degrees soon after dawn to -2 and in afternoon -4C. Will feel as cold as minus 22C directly in the wind.

Freezing Level

Above the summits at dawn; then very rapidly dropping to 500m, and then gradually through day toward 300m away from hills nearest the coast.

Planning Outlook

All mountain areas of Britain from Thursday 29th January 2015

Cold conditions will persist until well into next week, although a slight rise in freezing level until Saturday. Snow will be concentrated on northern and western mountains. With several small lows moving south, there will be extensive severe upland gales, although some areas will have a marked lull for a few hours. Much less windy for 2 or 3 days early next week, after which less cold conditions may percolate eastwards.

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