Snowdonia Weather in December

Cold, with frequent heavy rain. Average highs of 6°C and lows of 2°C, with around 21 rainy days expected throughout the month.

While December isn't our top-rated month for Snowdonia, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.

Average high

6°C

Average low

2°C

Rainy days

21 days

Best months to visit

Year-round

What to do in Snowdonia in December

Whatever the weather, Snowdonia rewards curious visitors. Here are some of the best ways to spend your time:

Climb Snowdon by mountain railway or on foot Hike the Llanberis Path or Pyg Track Kayak on Llyn Padarn or Llyn Gwynant Explore the slate mines of Blaenau Ffestiniog Visit Caernarfon Castle Cycle Mawddach Trail through river gorge

What to pack for December

Pack for cold weather — a proper winter coat, thermal layers, waterproof boots, and warm accessories. You'll want a good base layer for outdoor activities.