Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Monday 30th November 2015
Forecast last updated on Sunday 29th November 2015 at 1:25pm

Today | Tuesday | Wednesday

Summary for all mountain areas

Windy northern Scotland, and snow showers. Central & southern Highlands will see a relative lull, and brighter conditions. Persistent heavy rain England & Wales, risk snow tops northern Pennines & Lakes, also Galloway. Storm force upland winds Snowdonia & S.Pennines.

Headline for Snowdonia National Park

Storm force upland winds; near-constant heavy rain.

How windy? (On the summits)

Southwest veering westerly, 60 to 80mph for many hours, locally higher gusts. Late in the day may ease slowly northern areas.

Effect of wind on you?

Very difficult walking across the region, any mobility often tortuous on higher areas most of the day. Severe wind chill.

How Wet?

Incessant rain

Rain rarely ceasing most or all day, often heavy western mountains, may later fall as wet snow on highest summits.

Cloud on the hills?

Extensive across the hills

Blanket cloud across the mountains all day, in many areas from lower slopes upward.

Chance of cloud free summits?

Almost nil.

Sunshine and air clarity?

Sunshine not expected. Misty or murky widely and fog extensive across the hills.

How Cold? (at 900m)

7C, perhaps only 4C northern Snowdon range.

Freezing Level

Above the summits.

Planning Outlook

All mountain areas of Britain from Tuesday 1st December 2015

Frequent upland gales and occasionally storm force upland winds this week and perhaps well into December. On western mountains, precipitation at some stage almost daily resulting in considerable rainfall in total. Freeze-thaw cycles will occur on the Scottish Munros, although often sub-zero, allowing snow to accumulate. Further south, higher summits occasionally be below freezing point, but lying snow fairly transient. Slight improvement as pressure builds around Friday-Saturday, but still windy, and risk some further rain in north-west.

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