Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Tuesday 28th July 2015
Forecast last updated on Monday 27th July 2015 at 2:47pm

Summary for all mountain areas

A complicated weather pattern with the remnants of various fronts across Britain (simplified to a single front on the map). Broadly, areas of rain will drift about and low cloud will be extensive. N Scotland, Wales and the Peak District will be driest with highest cloud base. Winds will be light.

Headline for Snowdonia National Park

Wind easing. increasingly showery.

How windy? (On the summits)

Westerly 20mph. But for several hours after dawn 25, to in mid-Wales 35mph.

Effect of wind on you?

Soon small

How Wet?

Increasingly showery

Showers, mainly afternoon and evening, when some heavy, particularly away from westernmost summits.

Cloud on the hills?

Extensive on higher areas

Widespread cloud higher areas for several hours. But the base lifting; by late morning, most cloud above 850m west and above the summits elsewhere. But as showers develop, so cloud will reform in places below 600m.

Chance of cloud free summits?

Rising through morning to 30% west and 80% east

Sunshine and air clarity?

Bursts of sunshine. Widely foggy higher areas, mainly morning. Good visibility below cloud.

How Cold? (at 900m)

Cold for the time of year: 6 to 8C; highest well inland in afternoon.

Freezing Level

Above the summits.

Planning Outlook

All mountain areas of Britain from Wednesday 29th July 2015

Low temperatures on most mountains until the weekend; coldest Thursday on the Scottish Highlands, when highest tops will be below freezing point, giving snow in showers. Broadly showery, most showers on Wednesday and Thursday along the spine of Britain. By Friday dry England and Wales, but rain may well reach at least western Scotland. The sequence is uncertain from the weekend, as forecasts from the different meteorological centres bring in fronts and on some models associated lows at different speeds. However, continuing unsettled, but a little warmer in the summits.

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