Snowdonia weather in August
Cool, with frequent heavy rain. Average highs of 16°C and lows of 10°C, with around 21 rainy days expected throughout the month.
While August 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
16°C
Average low
10°C
Rainy days
21 days
Best months to visit
Year-round
What to do in Snowdonia in August
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 August
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
5C
Cold, with frequent heavy rain.
February
5C
Cold, with regular rainfall.
March
7C
Cold, with regular rainfall.
April
10C
Cool, with some rainy days.
May
13C
Cool, with regular rainfall.
June
16C
Cool, with regular rainfall.
July
17C
Cool, with regular rainfall.
August (you are here)
16C
Cool, with frequent heavy rain.
September
15C
Cool, with regular rainfall.
October
11C
Cool, with regular rainfall.
November
8C
Cold, with frequent heavy rain.
December
6C
Cold, with frequent heavy rain.
Book your August trip to Snowdonia
Find hotels, tours and experiences for the perfect escape.
