Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Monday 3rd August 2015
Forecast last updated on Sunday 2nd August 2015 at 3:14pm

Tomorrow | Tuesday | Wednesday

How windy? (On the summits)

Southerly 25-30 mph, but over a few hours after dawn and again in evening 35-40mph Snowdon range.

Effect of wind on you?

Widespread buffeting where exposed on higher areas.

How Wet?

Rain temporarily

Frequently dry, but most likely later morning or middle of the day a front will bring rain over a couple of hours.

Cloud on the hills?

Mostly clearing mid to late morning

Cloud base will vary: for lengthy periods confined above most or all summits. But temporarily low cloud will form in morning, mainly western areas, above 450-600m. Risk on western slopes between Snowdon and Porthmadog, patches of cloud from lower slopes up.

Chance of cloud free summits?

30% at first to 90% by late morning

Sunshine and air clarity?

Sun by mid to late morning, most extensively eastern areas. Hazy.

How Cold? (at 900m)

8 to 10C.

Freezing Level

Above the summits.

Planning Outlook

All mountain areas of Britain from Tuesday 4th August 2015

Continuing quickly changing weather, and on Tuesday widespread upland gales. Generally less windy and showery Wednesday, although later in the day rain likely to envelop areas near the Irish Sea. Beyond, rain still frequent, often falling as showers.

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