The Race
| Distance | 42.195 km |
| Course Type | Loop |
| Registration | Ballot |
| Total Finishers | 2,500 |
| Avg Race Day Temp | 6--19.5°C |
| Cutoff Time | 7 Hours |
| Course Certification | UKA |
| Official Website | www.snowdoniamarathon.co.uk |
The Snowdonia Marathon is a loop marathon held in Llanberis, United Kingdom in October. The race attracts approximately 2,500 finishers. Average race day temperatures are 6--19.5°C.
Weather
| Avg Race Day Temp | 6--19.5°C |
| Avg Humidity | 72% |
| Avg Wind Speed | 9.5 mph W |
| Climate Consistency | Consistent |
Full race guide - course description, key landmarks, and race-day tips - coming soon.
Entry
| Registration Type | Ballot |
| Entries Open | Preceding spring (March) |
| Last Year Entries Opened | March 2026 |
| Ballot Close Date | April 2026 |
| Draw Date | May 2026 |
| Next Event Date | October 2026 |
The Snowdonia Marathon uses ballot registration. Entries typically open Preceding spring (March). For current entry details and to register, visit www.snowdoniamarathon.co.uk.
Detailed entry breakdown - GFA standards, charity places, tour operator packages, and tips for first-time entrants - coming soon.
Race Weekend
Race weekend guide - expo details, race morning transport, course overview, and finish area logistics - coming soon.
Where to Stay
Hotel recommendations near the finish line, neighbourhood guide, and booking timeline coming soon.
See & Do
Attractions, day trips, and things to do in Llanberis for marathon runners - coming soon.
After the Race
Post-race itineraries - day trips, overnight escapes, and regional travel from the finish line - coming soon.