Snowdonia Weather in May

Cool, with regular rainfall. Average highs of 13°C and lows of 6°C, with around 15 rainy days expected throughout the month.

While May 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

13°C

Average low

6°C

Rainy days

15 days

Best months to visit

Year-round

What to do in Snowdonia in May

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 May

Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.