www.weswimrun.org

Dyfi X Trail Marathon

Name: Dyfi X Trail Marathon
Start: 2026-04-04
End: 2026-04-04
Location: Aberdyfi

location_city Aberdyfi

flag United Kingdom

calendar_today 04 Apr, 2026

directions_run Running

language Official Website

About the Event

Tackle a rugged coastal half marathon in a UNESCO Biosphere. The Dyfi X Half Marathon & Marathon is a challenging trail race set in the stunning Snowdonia National Park, taking place on Saturday, 4 April 2026, starting from the village of Aberdyfi. The half marathon route delivers a tough, scenic 21.1 km with 850m of elevation gain, featuring spectacular coastal and mountain views along the Wales Coast Path and through the Dyfi Biosphere. As a UTMB 20K Index Race, it attracts serious trail runners, but its community spirit and focus on sound mountain kit make it accessible to dedicated off-road enthusiasts. With train access right to the start line and a strong commitment to sustainability, this event offers a pure, rewarding trail running adventure on some of Wales's most beautiful and wild coastal paths.

Races Offered

Half Marathon

Apr 04, 2026

straighten

Distance — 21.1K

terrain

Type — Trail running

timer

10:30

Marathon

Apr 04, 2026

straighten

Distance — 42.2K

terrain

Type — Trail running

timer

10:30

Weather Overview

These values represent the 3-year monthly averages for April in Aberdyfi.

Temp (°C)

Feels Like (°C)

thermostat 5.3° / 11.9°

wb_sunny 1.1° / 8.2°

Wind (km/h)

Humidity (%)

air 14.8 /

water_drop 78.6%