Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Saturday 28th November 2015
Forecast last updated on Saturday 28th November 2015 at 1:39pm

Today | Sunday | Monday

Summary for all mountain areas

Upland gales very widely. Precipitation will fall extensively, particularly western mountains, of snow except lowest slopes Scottish Highlands but soon almost all rain elsewhere. Generally more showery later in day. Extensive low cloud, especially west.

Headline for Snowdonia National Park

Gale or severe upland gales; frequent rain.

How windy? (On the summits)

Southwesterly in the range 45mph to perhaps 60mph

Effect of wind on you?

Increasingly difficult walking conditions on higher areas and significant wind chill.

How Wet?

Rain frequently

Rain, becoming almost constant for a couple of hours, before easing to showers for the afternoon. Snow higher areas after dawn, although by midday only above 950m.

Cloud on the hills?

Persistent higher areas

Cloud base lowering during morning to 400 to 600m, but intermittently lower toward the coast. May rise somewhat afternoon, when breaks to higher tops easternmost areas.

Chance of cloud free summits?

Less than 10%

Sunshine and air clarity?

Rare glimpses of sun. Visibility frequently poor and persistent fog most higher areas.

How Cold? (at 900m)

0 rising to 2C during morning

Freezing Level

850m, rising above the summits during morning.

Planning Outlook

All mountain areas of Britain from Sunday 29th November 2015

A week of frequent upland gales and occasionally storm force upland winds, and particularly on western mountains precipitation at some stage almost daily resulting in considerable rainfall in total. Freeze-thaw cycles will occur on the Scottish Munros: the colder periods most lengthy, allowing snow to accumulate on higher areas. Further south, higher summits occasionally be below freezing point, but lying snow fairly transient. Some forecasts suggest a less wet, but perhaps still windy, period focussed on next weekend (December 5/6).

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