Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Tuesday 21st October 2014

Tomorrow | Wednesday | Thursday

Forecast last updated on Monday 20th October 2014 at 3:07pm

How windy? (On the summits)

Northwesterly typically 50mph, gusts 70mph.

Effect of wind on you?

Difficult walking from valleys upward; and on higher areas, particularly near showers, any mobility very difficult. Severe wind chill.

How Wet?

Showers; risk lightning

Showers after overnight rain. Showers locally heavy morning, hail and thunder; snow highest tops. Risk toward evening of the showers merging one into another north of the A5.

Cloud on the hills?

Varied cloud base, rarely clearing

Rapid cloud base variation, from 450-600m near showers to otherwise 800m or above - generally highest cloud base south of Bala to Barmouth.

Chance of cloud free summits?

30%

Sunshine and air clarity?

Ranging from brief glimpses of sun Snowdon range to intermittent sun south of Bala to Barmouth. Fog higher areas; otherwise good visibility although constant haze.

How Cold? (at 900m)

1C; will feel as cold as minus 15 Celsius directly in the wind.

Freezing Level

1000m.

Planning Outlook

All mountain areas of Britain from Wednesday 22nd October 2014

Until after the weekend over Highland Scotland, long bouts of upland gales - and on the W & NW Highlands, frequently raining with cloud shrouding the mountains. Snow on higher summits from Friday onwards. Less windy and wet over mountains in England and Wales, although extensive very low cloud and drizzly rain on Thursday. Then substantially dry - although threat persistent rain south Wales for a period Friday or Saturday.

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