Trail races in Basque Country — May 2026
The Basque Country is the birthplace of Spanish skyrunning with the legendary Zegama-Aizkorri. Green mountains, technical trails and an Atlantic climate that challenges even the most prepared runners.
2 races scheduled
Climate in Basque Country: The Atlantic climate means frequent rain year-round, but also mountains that are always green and mild temperatures. There's no truly bad season for running, though November to February combines rain with short days. From May to September days are long and temperatures pleasant (15-25 °C), though rain can appear without warning. Running here always requires a waterproof jacket in your pack — but that mud and mist are part of the Basque character.
Race summary
2
Races
4.5 – 42 km
Distance range
550 – 2736 D+
Elevation range
May
Race months
Difficulty
Tips for running in Basque Country in may
Sun protection: the sun is already strong in May. SPF 50+ cream, visor cap and sunglasses are essential.
If your race is in high mountains, still bring thermal layers: at high altitudes temperatures can drop below 5 °C.
May has a high volume of races: plan carefully if you have multiple objectives to avoid overtraining.
Race map
Click a marker to view race details.
Scheduled races
Featured Photo: Zegama-Aizkorri Zegama-Aizkorri
Zegama
42K y KV por la Sierra de Aizkorri, la carrera de skyrunning más mítica de España
Photo: Mitxarro Bira Mitxarro Bira
Araia
27,5K y 14K por la Sierra de Altzania en el Parque Natural de Aizkorri-Aratz
Essential trail running gear
Must-have gear to prepare for your mountain races
Black Diamond
Black Diamond Distance Carbon Z
Bastones plegables Z-pole de carbono ultraligeros. 137 g por bastón en talla 110 cm, plegado de 33 cm. Empuñadura EVA y dragonera regulable. La referencia del trail running.
Altra
Altra Lone Peak 9
Zapatilla de trail running con drop cero y horma ancha FootShape que permite la expansión natural de los dedos. Stack de 25 mm con espuma EGO para amortiguación equilibrada sin perder contacto con el terreno. Suela MaxTrac con tacos de 3,5 mm, ideal para senderos no técnicos, pistas forestales y rutas GR.
Salomon
Salomon Speedcross 6
La zapatilla de trail más versátil de Salomon, ideal para terrenos técnicos y barro. Agarre excepcional con suela Contagrip y amortiguación EnergyCell+.
Freet
Freet Feldom 3
Zapatilla 100 % barefoot para trail con drop cero, stack mínimo (suela de 6 mm) y horma anatómica que respeta la anchura natural del pie. Sin amortiguación intermedia: máxima propiocepción y feedback del terreno. Tacos multidireccionales para senderos de tierra y caminos. Pensada para corredores ya adaptados al calzado minimalista o para una transición progresiva desde calzado respetuoso con stack.
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