www.marathondelamer.com

Marathon de la Mer

Name: Marathon de la Mer
Start: 2026-05-02
End: 2026-05-02
Location: Boulogne-sur-Mer, Hauts-de-France

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Boulogne-sur-Mer, Hauts-de-France, France

calendar_today 02 May, 2026

language Official Website

About the Event

Run with the sea by your side at a vibrant coastal running festival on the stunning Côte d'Opale on Friday, 2nd May 2026. This festive and convivial event invites you to choose your challenge from a 10km, half marathon, or full marathon, all set against the breathtaking backdrop of northern France's iconic coastline. Experience the unique energy of a race where the sound of crashing waves and the fresh sea air fuel your stride along beautiful seaside routes. Designed for runners of all levels seeking a personal best or a memorable scenic run, it combines professional organisation with a wonderfully friendly, community atmosphere. The day promises a true celebration of running, from the electric start to the rewarding finish, surrounded by fellow enthusiasts and spectacular views. Secure your place for an unforgettable running holiday where athletic achievement meets the raw, natural beauty of the Opal Coast. Further details, including the official event name and specific race distances, will be confirmed by the organizers.

Races Offered

Marathon

May 02, 2026

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Distance — 42.2K

terrain

Type — —

timer

08:30

Semi-Marathon

May 02, 2026

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Distance — 21.1K

terrain

Type — —

timer

10:15

10 km

May 02, 2026

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Distance — 10K

terrain

Type — —

timer

10:45

Weather Overview

These values represent the 3-year monthly averages for May in Boulogne-sur-Mer.

Temp (°C)

Feels Like (°C)

thermostat 9.9° / 15.6°

wb_sunny 6.5° / 12.7°

Wind (km/h)

Humidity (%)

air 16.5 /

water_drop 82.0%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 9.9° / 15.6°

wb_sunny 6.5° / 12.7°

air 16.5 km/h

water_drop 82.0%

About Boulogne-sur-Mer

Boulogne-sur-Mer or Boulogne is a city and port in the Côte d'Opale region of Hauts-de-France. It is the second largest place on the Cote D'Opale after Calais. It is the estuary of the Liane river.