Marathon de Vannes

Marathon de Vannes 2025 Course Analysis

Marathon de Vannes is a full marathon held in Vannes, France, scheduled for Saturday 27 September 2025. The course is run on road surface with 378m of total elevation gain, reaching a maximum altitude of 30m above sea level. For registration and full race details, visit the official Marathon de Vannes website.

Elevation Profile

This is a hilly course with 378m of total elevation gain. The route climbs from -9m to as high as 30m above sea level — a substantial 39m elevation range. Runners should train on hills and plan for a more conservative pacing strategy, especially on the climbs.

Expected Race Day Weather

Based on historical weather data for September, the expected race day conditions are as follows. Moderate temperatures between 12°C and 18°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance over the full distance. There is a low chance of rain (5%), so dry conditions are likely.

Surface Type: Road

Marathon de Vannes is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.

How Difficult Is Marathon de Vannes?

Our difficulty rating for Marathon de Vannes is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.

Looking for an easier marathon or a tougher challenge? You can also compare Marathon de Vannes against other marathons to find the right race for your goals.