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Snowdonia National Park Forecast

Snowdonia National Park

Includes all summits in the the northern half of Wales from Plynlimon northwards.

Click here to download the latest PDF Last Updated Sun 29th Mar 20 at 3:50PM Last Updated Sunday 29th March 2020 at 3:50PM
View our low-graphics version Last Updated Sun 29th Mar 20 at 3:50PM Last Updated Sunday 29th March 2020 at 3:50PM

Viewing Forecast For

Snowdonia National Park
Monday 30th March 2020
Last updated Sunday 29th March 2020 at 3:50 PM

Summary for all mountain areas

High pressure to the west of the British Isles will bring largely dry but mostly cloudy conditions with a persistent cloud sheet; although some breaks will occur. Brisk winds across England and Wales, and in the morning across Scotland, will give significant chill. Isolated snow flurries.

Headline for Snowdonia National Park

Brisk wind giving significant chill. Cloud sheet covering higher slopes.

How windy? (On the summits)

North to northeasterly 15 to 25mph; may reach 30mph at times higher slopes.

Effect of the wind on you?

May impede walking at times across higher slopes with significant wind chill.

How Wet?

Isolated if any showers.

Very likely dry, small risk of an isolated flurry.

Cloud on the hills?

Cloud sheet higher slopes.

A cloud sheet will cover higher slopes above 700-800m, perhaps some patches down to 600m in the north. Highest tops may poke above cloud, and breaks in cloud sheet may develop in the south.

Chance of cloud free summits?

40%

Sunshine and air clarity?

Mostly cloudy, but some patches of sun will break through at times. Visibility mostly good or very good.

How Cold? (at 900m)

-2C rising to 0C, but feeling closer to -14C in direct exposure to strongest winds in the morning.

Freezing Level

Terrain partly frozen from valleys up at dawn. Will soon thaw as freezing level lifts to 850 to 950m in the afternoon.

Viewing Forecast For

Snowdonia National Park
Tuesday 31st March 2020
Last updated Sunday 29th March 2020 at 3:50 PM

How windy? (On the summits)

Northeasterly 10-20mph; highest in morning when perhaps reaching 25mph at times.

Effect of the wind on you?

Mostly small.

How Wet?

No precipitation expected

Cloud on the hills?

Banks of cloud higher slopes in morning.

Detail uncertain: Banks of cloud covering some higher slopes at times, mainly in the morning. There will likely be several hours where hills become clear of cloud.

Chance of cloud free summits?

60%

Sunshine and air clarity?

Patchy sun, but often periods when cloudy. Visibility excellent.

How Cold? (at 900m)

0 to 2C; highest in the afternoon.

Freezing Level

Terrain at least partly frozen from valleys up at dawn. Will soon thaw as freezing level lifts to or above tops in afternoon.

Viewing Forecast For

Snowdonia National Park
Wednesday 1st April 2020
Last updated Sunday 29th March 2020 at 3:50 PM

How windy? (On the summits)

Northwesterly 10 to 20mph; highest in the afternoon.

Effect of the wind on you?

Small.

How Wet?

Mostly dry

Small risk of an isolated shower or flurry.

Cloud on the hills?

Mostly very little

Patches covering higher tops for a time, mainly around dawn; but may linger longer across Snowdon Range. Otherwise, hills very likely widely clear.

Chance of cloud free summits?

60%

Sunshine and air clarity?

Some patches of sun, but often overcast due to persist cloud sheet. Visibility very good or excellent.

How Cold? (at 900m)

-2C lifting to 1C in the afternoon.

Freezing Level

700m, lifting to 1000m in afternoon. Patchy frost in the valleys at dawn.

Planning Outlook

Frequently cold this week, leaving higher terrain in Scotland frozen and intermittently frozen elsewhere. Precipitation amounts small, although heavier snow showers arriving later in week across Scotland. Scottish MR Note: Scot Gov has stated that "essential travel only must be undertaken" in order to protect our rural communities and prevent extra pressure on our Emergency Services. Now is the time to avoid unnecessary mountain activities and consider our social responsibilities. More info, visit: https://www.gov.scot/coronavirus-covid-19/