Snowdonia National Park

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

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Viewing Forecast For

Snowdonia National Park
Thursday 11th August 2022
Last updated Wed 10th Aug 22 at 2:33PM

Summary for all mountain areas

A front will continue to meander off NW Scotland, continuing to bring gusty winds and later in the day rain (mainly near the coast north from Skye). Elsewhere, very warm or hot and sunny. Beware of dehydration and sunburn and of widely exceptionally dry conditions underfoot.

Headline for Snowdonia National Park

Little wind. Afternoon temperature 30C in some valleys.

How windy? (On the summits)

Varying in direction, 10mph or less.

Effect of the wind on you?

Negligible

How Wet?

No rain

Cloud on the hills?

Not expected

Chance of cloud free summits?

100%

Sunshine and air clarity?

More or less unbroken sunshine. Hazy, particularly morning.

How Cold? (at 900m)

Will rise to around 22C by mid afternoon. - very warm indeed. (Hot valleys where temperatures close to 30C)

Freezing Level

Above the summits.

Viewing Forecast For

Snowdonia National Park
Friday 12th August 2022
Last updated Wed 10th Aug 22 at 2:33PM

How windy? (On the summits)

Direction varied, less than 10mph

Effect of the wind on you?

Negligible

How Wet?

Rain not expected

Cloud on the hills?

Not expected

The hills cloud free, but risk fog in some valleys temporarily after dawn.

Chance of cloud free summits?

90%

Sunshine and air clarity?

Extensive or unbroken sunshine. Soon good visibility although a haze, particularly morning.

How Cold? (at 900m)

Will reach typically 21C in the afternoon - very warm or hot

Freezing Level

Above the summits

Viewing Forecast For

Snowdonia National Park
Saturday 13th August 2022
Last updated Wed 10th Aug 22 at 2:33PM

How windy? (On the summits)

Direction varied 10mph or less.

Effect of the wind on you?

Negligible

How Wet?

No rain

Cloud on the hills?

Not expected

Rare patches of fog from valleys upward after dawn, but this soon dispersing.

Chance of cloud free summits?

90%

Sunshine and air clarity?

Extensive or unbroken sunshine. Good visibility although hazy.

How Cold? (at 900m)

Unusually warm: near 21C from midday.

Freezing Level

Above the summits.

Planning Outlook

The very warm or hot weather with extensive sunshine will last through the weekend, albeit on Sunday cloud will build, with risk of bursts of rain, possibly thunder later. The NW Highlands will often be cloudy and until the weekend less hot. Away from the W & NW Highlands, terrain is very dry or exceptionally dry - significant risk of fire. Indications are of it being less hot next week, with rain (including thunderstorms) from time to time within a general area of low pressure that will envelop Britain.