Snowdonia National Park Forecast

Also includes higher summits south to Plynlimon.

Viewing Weather Forecast for Tuesday 24th January 2017
Forecast last updated on Monday 23rd January 2017 at 1:43pm

Summary for all mountain areas

A zone of low cloud and patchy rain extends across S & SW Scotland, plus western-most hills in England & Wales. Elsewhere largely dry, cloud breaks to higher tops, particularly N Scotland. Windy on Scottish mountains; gale force in N & NW Highlands. Some terrain frozen.

Headline for Snowdonia National Park

Blustery higher areas. Low cloud mainly west.

How windy? (On the summits)

Southwesterly, 25 to 30, occasionally 35mph Snowdon range.

Effect of wind on you?

Walking impeded, or arduous on some higher areas.

How Wet?

Occasional rain far west

Patches of rain or drizzle drifting off the Irish Sea onto western hills around Snowdon. However in most areas there will be very little if any rain.

Cloud on the hills?

Lowest west; breaks to higher tops east

Widespread cloud covering many hills, above around 500m, lowest Snowdon range westwards. However, eastern mountains and perhaps north of the A5 will have little cloud below 700m, and there may be breaks above 900m.

Chance of cloud free summits?

20% west; 40% east.

Sunshine and air clarity?

Occasional sun; most likely eastern mountains. Haze lower slopes; fog many higher areas, particularly west.

How Cold? (at 900m)

2 to 4C, lowest west; little change in temperature with height from valleys to summits.

Freezing Level

Above the summits.

Planning Outlook

All mountain areas of Britain from Wednesday 25th January 2017

Southerly winds will be gale or severe gale force on most hills and mountains for the rest this week, although it will remain largely dry as fronts are held at bay to the west of Britain. A little rain or drizzle and low cloud will drift onto western hills from time to time, but many tops should be often clear. A change to a more pronounced south-westerly regime is expected by the end of the month, although there is uncertainty about how quickly this evolves around the weekend - many areas may remain largely dry until into next week. Often near or below freezing on higher areas - terrain at least partly frozen. Next week, periods of freeze and thaw are likely.

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