Snowdonia National Park Forecast

Also includes higher summits south to Plynlimon.

Viewing Weather Forecast for Monday 5th December 2016
Forecast last updated on Sunday 4th December 2016 at 1:45pm

Tomorrow | Tuesday | Wednesday

How windy? (On the summits)

South to southeasterly, 15 to 20mph, at times less.

Effect of wind on you?

Fairly small.

How Wet?

No precipitation

Cloud on the hills?

Most summits clear

Banks of fog some lower slopes and valleys in the morning, may linger locally, particularly eastern areas; higher summits likely above cloud. May all break up and clear.

Chance of cloud free summits?


Sunshine and air clarity?

Sunshine on higher areas weakening as high cloud builds. Visibility mostly very good, but low level haze; fog many valleys and lower slopes in morning.

How Cold? (at 900m)

2 rising to 5C; higher slopes warmer than valleys, particularly morning.

Freezing Level

Above the summits; but a frost in many valleys and some higher corries in the morning.

Planning Outlook

All mountain areas of Britain from Tuesday 6th December 2016

South to southwesterly winds will strengthen markedly by midweek, bringing unsettled conditions for several days, likely continuing through next weekend, although confidence of day to day detail is low by the end of the week. Upland gales or severe gales at times. Fronts will bring extensive low cloud and occasional rain, mostly focused on western hills and mountains. The air will originate over the mid-Atlantic, resulting in very mild temperatures, which will bring a thaw of most remaining snow cover.

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