Carnac, nestled along the rugged coast of Brittany, is set to host its annual 10K'Arnag festival on October 10, 2026. This vibrant celebration combines athletic prowess with community spirit and philanthropy. The race course winds through Carnac's picturesque landscapes, leading participants from the town center past iconic menhirs—prehistoric standing stones—and out to its beautiful beaches. For those who enjoy a more leisurely pace, there is also a 5 km walking route along the same scenic path. Children are not left out; a dedicated 1-km race offers them an exciting introduction to running in such a historic and charming setting. The course design caters to both beginners and seasoned runners alike, ensuring everyone can enjoy this unique event. In keeping with the festival's spirit of giving back, 10K'Arnag supports Octobre Rose, a global campaign aimed at raising awareness about breast cancer screening. All proceeds will benefit the Ligue Contre le Cancer du Morbihan, highlighting the race’s commitment to both physical and social well-being. The event is a collaborative effort by seven passionate Vannes students who share a deep love for their region. Local residents can participate as volunteers or simply join in with their running shoes on. The collective enthusiasm of these contributors aims to create an inclusive and community-focused experience that will resonate beyond the day itself, celebrating Carnac's rich heritage. On race day, participants will enjoy a full schedule starting from October 9th for packet pick-up. Races begin at 16:00 with children’s events followed by the 5 km walk and then the main 10K run. Expect to arrive back in town around 18:30-19:00, just in time for post-race festivities. After crossing the finish line, revel in the camaraderie at the awards ceremony where both children’s and adult races will be celebrated. Follow @le10karnag on social media to stay updated or register now through Klikego. Join us as we come together for a day that celebrates health, community, and solidarity—Carnac's October highlight of 2026!
Races Offered
10km de Carnac
Oct 10, 2026
straighten
Distance —
10 km
terrain
Type —
Running
timer
98 days remaining
sell
€15.00
1km des enfants
Oct 10, 2026
straighten
Distance —
1 km
terrain
Type —
Running
timer
98 days remaining
sell
€0.00
5km de marche
Oct 10, 2026
straighten
Distance —
5 km
terrain
Type —
Running
timer
98 days remaining
sell
€0.00
Weather History
These values represent the 3-year monthly averages for October in Carnac.
thermostatTemperature
11.8° / 17.3°
wb_sunnyFeels like
8.3° / 14.7°
light_mode
Avg sunshine hours
7h 21m
water_drop
Avg rainfall
3.9 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
17.5 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (2.8)
humidity_mid
Humidity
81.5%
wb_twilight
Sunrise
08:32
nightlight
Sunset
19:22
About Carnac
Learn more about the host city, Carnac.
Carnac is a small town in Morbihan, Brittany. Its main claim to fame are the menhirs surrounding the town. In 2025 these stones were listed as a UNESCO World Heritage Site.