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 Thu 28th May 20 at 12:42PM Last Updated Thursday 28th May 2020 at 12:42PM
View our low-graphics version Last Updated Thu 28th May 20 at 12:42PM Last Updated Thursday 28th May 2020 at 12:42PM

Viewing Forecast For

Snowdonia National Park
Friday 29th May 2020
Last updated Thursday 28th May 2020 at 12:42 PM

Summary for all mountain areas

Sunshine dawn til dusk in many areas, and becoming very warm, some valleys exceeding 25C by afternoon; beware sunburn and dehydration. Some thin high level cloud, which may build a little further in the afternoon in western Scotland.

Headline for Snowdonia National Park

Sunny and warm. Locally gusty.

How windy? (On the summits)

Southeasterly 15 to locally 25-30mph.

Effect of the wind on you?

May impede walking at times across higher slopes with some sudden gusts running downslope.

How Wet?

No rain

Cloud on the hills?

Widely clear

Chance of cloud free summits?

Practically certain

Sunshine and air clarity?

Extensive strong sunshine. Visibility excellent.

How Cold? (at 900m)

11 lifting to 13C

Freezing Level

Above the summits.

Viewing Forecast For

Snowdonia National Park
Saturday 30th May 2020
Last updated Thursday 28th May 2020 at 12:42 PM

How windy? (On the summits)

East to southeasterly, 10 to 15mph; sometimes locally 20-25mph.

Effect of the wind on you?

Mostly small; some gusty areas.

How Wet?

No rain

Cloud on the hills?

Widely clear

Chance of cloud free summits?

Almost certain

Sunshine and air clarity?

Extensive strong sunshine. Excellent visibility.

How Cold? (at 900m)

12 to 14C.

Freezing Level

Above the summits.

Viewing Forecast For

Snowdonia National Park
Sunday 31st May 2020
Last updated Thursday 28th May 2020 at 12:42 PM

How windy? (On the summits)

East or southeasterly, 10 to 20mph.

Effect of the wind on you?

Mostly small, but locally gusty.

How Wet?

No rain

Cloud on the hills?

Widely clear

Chance of cloud free summits?

Practically certain

Sunshine and air clarity?

Extensive strong sunshine. Excellent visibility; local mist patches some valleys after dawn.

How Cold? (at 900m)

10C lifting to 12C.

Freezing Level

Above the summits.

Planning Outlook

Very warm through this weekend with strong sunshine. Frequently dry conditions prevailing into early June as high pressure stays close to the British Isles. Northerly air masses will see temperatures tend to lower with time, with more cloud and occasional showers forming locally. Very dry underfoot in most areas. Please be aware of currently different restrictions regarding Covid-19 across Scotland, England & Wales. Refer to local guidance or instructions from the National Parks and outdoor bodies, and please respect local communities in areas which are gradually reopening. See mwis.org.uk/blog for latest information and links.