Marathon de Nantes
Race Day Weather
Comfortable temps, warming through the race
Mild 52°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 62°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 72% is worth noting for effort level, especially in later miles.
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Race Info
The Marathon de Nantes runs through the city of Nantes in western France, starting at the Machines de l'Île and finishing at the Parc des Expositions de La Beaujoire. The course passes Place Graslin, Place Royale, Parc de Procé and the Erdre riverbanks, crossing a 324-meter floating pontoon built for the race near the finish. The marathon carries FFA Silver Label certification and serves as a French national championship qualifier. The 2026 edition drew a record 23,000 runners across its marathon, half marathon, 10K and relay races, with the marathon field selling out at 7,000 bibs.
