Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Sunday 19th April 2015
Forecast last updated on Saturday 18th April 2015 at 3:29pm

Today | Monday | Tuesday

Summary for all mountain areas

Low cloud and a few bursts of rain and drizzle will spread west from the North Sea during the day, but in Scotland very little cloud will reach the W & NW Highlands. Elsewhere, a rise in cloud base westwards. Most summits colder than on Saturday, except W Scottish Highlands.

Headline for Snowdonia National Park

Later deteriorating from east: Low cloud, risk isolated rain.

How windy? (On the summits)

Northeasterly 15 to locally 25mph near some ridges and summits

Effect of wind on you?

Fairly small

How Wet?

Risk showers evening

Most areas dry; but from east toward or during the evening, one or two bursts of showery rain.

Cloud on the hills?

Lowering onto mainly eastern hills; very little west

Banks of low cloud eastern mountains above 450m morning, becoming extensive above 600m into afternoon. The cloud will in afternoon slowly penetrate west, but base above 700-850m.

Chance of cloud free summits?

Dropping to 10% east and later 30% west

Sunshine and air clarity?

Sunshine, mainly western areas will tend to give way afternoon. Excellent visibility, but from east increasingly hazy and foggy on higher areas.

How Cold? (at 900m)

2C; rising slowly to reach 4 or 5C west into afternoon (then dropping again).

Freezing Level

Above the summits but risk ground frost some valleys at dawn

Planning Outlook

All mountain areas of Britain from Monday 20th April 2015

Very little precipitation for a week as high pressure continues to dominate the weather. Cloud will come and go - most of it confined to or above highest summits, but also sunshine, most sun as the week goes on from S Scotland southwards. Most persistent low cloud will be across the NW Highlands. There is still uncertainty regarding the extent to which the weather will break, and the temperature levels next weekend.

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