Trail races in Basque Country — December 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.
3 races scheduled
Season essentials
For cold and dark miles
Headlamp, thermal layer and a good watch: what matters when daylight runs short.
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No races match these filters.
For your vertical km
Poles, grippy shoes and a light vest for a 1,000 m climb.
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For a short race
Shoes, socks and sun protection: just what you need to run fast.
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For a mid-distance race
Shoes, vest and hydration for 21-42 km without suffering.
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For a long race
Vest, headlamp and nutrition for all those hours in the mountains.
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For your ultra
A watch with battery to spare, a powerful headlamp and poles: the gear that can't fail.
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Share this view(opens in a new tab)December2026
3
Etxebarri Xtreme
Etxebarri · Basque Country
30 · 10 kmAdvanced

Soxoguti Erronka
Artziniega · Basque Country
18 · 12 kmIntermediate

Bizkaia Kopa Trail · Zamudio
Zamudio · Basque Country
20 · 10 · 20 kmIntermediate
Season essentials
For cold and dark miles
Headlamp, thermal layer and a good watch: what matters when daylight runs short.
Some links are affiliate links. If you buy through them, we earn a commission at no extra cost to you.
Explore by country, month and goal
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
3
Races
10 – 30 km
Distance range
0 – 1,494 D+
Elevation range
Dec
Race months
Difficulty
Tips for running in Basque Country in december
December has the shortest days: always carry a headlamp even in short races in case it runs long.
Muscle cold increases injury risk: warm up for at least 15 minutes before the start.
December charity races are perfect for group running and enjoying without competitive pressure.
Race map
Click a marker to view race details.
Scheduled races
Photo: Etxebarri Xtreme (official organization)Etxebarri Xtreme
Etxebarri
14th Etxebarri Xtreme — Trail 30K with 1,494 m D+ on the doorstep of Bilbao
Photo: Organisation Soxoguti ErronkaSoxoguti Erronka
Artziniega
Artziniega, 12 December: 18 km with +900 m or 12 km with +600 m through the Ayala hills.
Photo: Organisation Bizkaia Kopa Trail · Zamudio (official poster)Bizkaia Kopa Trail · Zamudio
Zamudio
Bizkaia Kopa Trail · Zamudio 2026: Trail 20K, Short trail 10K and Mountain walk 20K in Zamudio (Bizkaia), 19 December
Essential gear for cold and dark conditions
Key gear for races in winter conditions

Buff
Buff Thermonet
Thermal tubular Buff with Primaloft technology. Traps body heat, ultralight and versatile: hat, neck gaiter, headband. Ideal for high mountain.

Petzl
Petzl Actik Core
Rechargeable 600-lumen headlamp with the Core battery included. Compatible with AAA batteries. Red mode to preserve night vision. Ideal for ultras with night sections.
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