Half Marathon races near Castellón de la Plana

Castellón Base Miles By The Sea

Castellón de la Plana hosts 10 Half Marathon races in 2026 within 80 km of the city centre — upcoming dates, recurring series, and other races nearby, all in one place.

The 00 km run gains 29 m and works for steady Z2. A Grao Runners puts the X 5K GRAU DE CASTELLO on the calendar. The 55 km route gains 13 m. Meridian Park works when you want simple laps. Cursa de Muntanya Tombatossals and LUDIENTE NATURAL TRAIL 2026 pull runners toward hillier legs. RUN ADDICTION brings the nocturno crowd with III 10k y 5k NOCTURNO RUN ADDICTION.

Locals ride north when they want proper work, because the Desert de les Palmes mountain range sits just behind Castellón. Desierto de las Palmas runs from Castellón to Benicàssim, and the climb gives you 7.8 km at 4.5%. Bartolo bites harder, because it climbs almost 3 km at 11% and kicks up to 20% ramps. The province gives climbers the Iberian Mountain Range, Els Ports, Artana pass, and Marianet pass. Infinitri Sports has 467 members and keeps the triathlon scene visible. Mediterranean Epic Gran Fondo 2026 and Marxa BTT Olocau del Rei sit as anchor events.

Winter is the cycling high season here, and early December can still give midday temperatures of 15-20ºC. Locals use those months for base miles, longer Z2 rides, and climbs without the summer squeeze. Autumn is the wettest season, so runners and riders watch the surface but still get solid sessions. Summer is hot, dry, and muggy, with high humidity, so the city shifts toward early starts, shorter intervals, and coastal spins where you can smell the salt water while you pedal. The city centre sits around 27 m, and winter keeps both sports steady without much drama.