Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Saturday 23rd May 2015
Forecast last updated on Saturday 23rd May 2015 at 7:29am

Today | Sunday | Monday

Summary for all mountain areas

Many mountain areas fine with light winds as a ridge of high pressure moves slowly east. But deteriorating slowly from west in afternoon across western Scotland, and in evening close to Irish Sea as winds strengthen, cloud lowers and mainly W & NW Highlands, rain develops.

Headline for Snowdonia National Park

Dry. Cloud clearing the summits; light wind.

How windy? (On the summits)

Direction will vary, less than 10mph. In evening southwesterly, reaching 15mph Snowdon range evening.

Effect of wind on you?

Negligible

How Wet?

Rain not expected

Cloud on the hills?

Very little by late morning

Mountains may be shrouded extensively for several hours after dawn. Gradually the cloud will lift and break: summits free of cloud by late morning. Cloud will begin to reform westernmost slopes toward dusk.

Chance of cloud free summits?

Greater than 90% by late morning

Sunshine and air clarity?

Patchwork of sunshine developing by midday. Excellent visibility.

How Cold? (at 900m)

7C.

Freezing Level

Above the summits.

Planning Outlook

All mountain areas of Britain from Sunday 24th May 2015

A series of weak fronts will progress southeast around an area of high pressure lying southwest of Britain. The result will be intermittent low cloud shrouding mainly western mountains and rain from time to time, mainly W & NW Highlands. Still intermittently cold enough for snow highest Scottish tops. Still chilly and generally wetter late next week, and as area of low pressure moves gradually toward northern Scotland.

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