Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Friday 4th September 2015
Forecast last updated on Thursday 3rd September 2015 at 4:26pm

Today | Saturday | Sunday

Summary for all mountain areas

A continued northerly breeze will again make it feel cold for early September on the mountains. Many areas dry, but light rain and low cloud will affect north-west Scotland for a few hours. Patchy drizzle will advance slowly south into northern England by evening.

Headline for Snowdonia National Park

Cold wind; patchy drizzle and low cloud, tops often clearing.

How windy? (On the summits)

Northerly 20mph, rarely 25mph.

Effect of wind on you?

Fairly small, but locally feeling cold where exposed to breeze.

How Wet?

A little drizzle at times

Mainly dry. One or two light drizzly showers moving off the Irish Sea onto northern facing hills early in the day. Toward evening, drizzly rain may return to northern Snowdonia.

Cloud on the hills?

A few patches northwestern tops.

Tops often clear, but patches above 750m at first and in any drizzle across Snowdonia late in day.

Chance of cloud free summits?


Sunshine and air clarity?

Glimpses of sunshine from time to time. Mostly excellent visibility, but fog patches some higher tops, mainly toward north later in the day.

How Cold? (at 900m)

4C rising to 7 or 8C; but locally feeling closer to zero where directly exposed to wind.

Freezing Level

Above the summits

Planning Outlook

All mountain areas of Britain from Saturday 5th September 2015

High pressure currently located to the west of Britain will push slowly east this weekend to become centred broadly across the country by Sunday and early next week. This will bring several days of fair weather, and very light winds. Daytime temperatures improving slowly. Cloud amounts will vary, but there will be some sunshine. Clear, still nights will result in frost and patchy fog forming in many valleys and glens. Later in the week, the pattern is expected to become south-westerly, bringing an increasing risk of rain and freshening winds for western Scotland.

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