Experience the thrill of running under starlit skies at the Yerres Trail By Night, returning for its sixth edition on January 15 and 16, 2027. Nestled within the serene forest of Yerres (91), this event offers a unique blend of nature, adventure, and personal challenge. On Friday evening, January 13 at 7:30 PM, participants can join an 11 km night hike through the enchanting woods. This family-friendly stroll invites runners to explore the trail in a relaxed atmosphere with friends or loved ones. Saturday's main event features two challenging trails for those seeking more intensity and elevation gain: - Trail 12km (Elevation Gain: +250m): Ideal for newcomers to night running as well as seasoned athletes looking for an accessible yet dynamic experience. This route offers a mix of forest paths with rolling terrain. - Trail 22km (Elevation Gain: +450m): A true test for trail enthusiasts, this longer distance delves deeper into the heart of Yerres Forest, showcasing its rugged beauty and demanding more from your endurance and technical skills. Both trails are officially timed to capture every runner's performance. Participants will be equipped with a water bottle at the finish line along with an exclusive souvenir item and commemorative medal. The event is not just about pushing personal limits but also contributing to local causes through fundraising efforts for community organizations. Join us in creating a warm, supportive environment that celebrates both athletic achievement and social responsibility. Registration includes all necessary equipment such as access maps and timing chips (for trails only). Participants must be at least 18 years old by the day of their race entry. Dossards are non-transferable without prior approval from organizers, ensuring each runner's journey is authentic and personal. Get ready to lace up your shoes, light up your headlamps, and embrace the magic of night running in Yerres Forest on January 15-16, 2027. Don't miss out on an unforgettable adventure that combines sport with solidarity! Meet you at Stade Léo Lagrange (2 Avenue Jean Rostand, 91330 Yerres) for a night to remember. Experience the unique allure of running by moonlight and become part of something special.
Races Offered
12 km
Jan 15, 2027
straighten
Distance —
12K
terrain
Type —
Running
timer
17:15
sell
€ 17.00
22 km
Jan 15, 2027
straighten
Distance —
22K
terrain
Type —
Running
timer
17:30
sell
€ 27.00
10 km
Jan 15, 2027
straighten
Distance —
10K
terrain
Type —
Running
timer
20:00
sell
€ 10.00
Weather History
These values represent the 3-year monthly averages for January in YERRES.
thermostatTemperature
2.0° / 7.4°
wb_sunnyFeels like
-2.4° / 3.1°
light_mode
Avg sunshine hours
3h 9m
water_drop
Avg rainfall
2.8 mm
ac_unit
Avg snowfall
0.1 cm
air
Avg wind speed
14.5 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (1.4)
humidity_mid
Humidity
85.5%
wb_twilight
Sunrise
09:35
nightlight
Sunset
18:23
Hotels & Places to Stay
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