Snowdonia National Park Forecast

Also includes higher summits south to Plynlimon.

Viewing Weather Forecast for Monday 22nd October 2018
Forecast last updated on Sunday 21st October 2018 at 4:15pm

Today | Tuesday | Wednesday

Summary for all mountain areas

Westerly gales across the Highlands all day, becoming storm force. Rain (initially snow on tops), will rarely cease on western coastal hills in NW Scotland. Low cloud filling in across the W/NW Highlands. Otherwise largely dry. Least wind Wales, but increasing N England.

Headline for Snowdonia National Park

Dry and sunny. Wind fairly light.

How windy? (On the summits)

North becoming northwesterly 15 to 25mph, at times less in middle of day.

Effect of wind on you?

Fairly small.

How Wet? (Precipitation and its impact)

Rain not expected

Cloud on the hills?

Little if any

Rare fragments of cloud may form on Snowdon range above 700-800m.

Chance of cloud free summits?

90%

Sunshine?
Air clarity (below cloud)

Extensive sunshine. Visibility excellent.

How Cold? (at 900m)

3C

Freezing Level

Above the summits. Slight frost at dawn some valleys.

Planning Outlook

All mountain areas of Britain from Tuesday 23rd October 2018

A strong area of high pressure lies west of the British Isles early this week. A prevailing west to northwesterly flow, with prolonged gales over Scottish mountains. Rain frequent or persistent NW Scotland, but largely dry elsewhere. Later in the week, a switch to northerly winds will bring widely much colder air across the UK. Dropping below freezing point on the Munros, and highest tops in England & Wales by Friday and the weekend. Expect upland gales and severe wind chill. Showers focused on north-facing hills will give a covering of snow on the hills. Away from showers, the air will be very clear.

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