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Scott Snowdonia Trail Marathon

United Kingdom flag
Llanberis, Wales, United Kingdom

calendar_today 12 Jul, 2026

directions_run Running

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Scott Snowdonia Trail Marathon

About the Event

Conquer the legendary trails of Wales's most iconic national park in a true mountain running festival. The Snowdonia Trail Marathon Eryri returns on 11-12 July 2026, offering four epic distances—a grueling 57km Ultra, a classic Marathon, a scenic Half Marathon, and a 10K—all starting from the outdoor capital of Llanberis. This premier event carves a breathtaking route through the very heart of Eryri (Snowdonia), passing historic villages like Beddgelert, traversing Nant Gwynant, and offering staggering views of Yr Wyddfa (Snowdon) itself. As an ITRA and UTMB-indexed race, it's a serious challenge for seasoned trail runners, yet its vibrant event village and family-friendly atmosphere welcome everyone. Lace up for an unforgettable journey across the UK's most spectacular mountain landscape.

Races Offered

10 km

Jul 12, 2026

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Distance — 10K

terrain

Type — Running

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-72 days remaining

Full Marathon

Jul 12, 2026

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Distance — 43.4K

terrain

Type — Running

timer

-72 days remaining

Half Marathon

Jul 12, 2026

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Distance — 21.1K

terrain

Type — Running

timer

-72 days remaining

Ultra Marathon

Jul 12, 2026

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Distance — 57K

terrain

Type — Running

timer

-72 days remaining

Weather History

These values represent the 3-year monthly averages for July in Llanberis.

thermostat Temperature
12.1° / 17.6°
wb_sunny Feels like
10.3° / 15.8°
light_mode Avg sunshine hours
9h 39m
water_drop Avg rainfall
6.2 mm
ac_unit Avg snowfall
—
air Avg wind speed
14.1 km/h (Gentle breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (5.6)
humidity_mid Humidity
87.6%
wb_twilight Sunrise
05:10
nightlight Sunset
21:32

About Llanberis

Learn more about the host city, Llanberis.

Scenic view of

Llanberis is in North Wales, 7 miles away from Caernarfon.

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Hotels & Places to Stay

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