Set against the backdrop of Switzerland's breathtaking Valais region, the Valais Triathlon Festival promises an unforgettable weekend at the end of August. This festival transforms Sion and its surroundings into one grand spectacle, offering something for every type of athlete—whether you're a seasoned triathlete or someone looking to enjoy the sport in a more relaxed setting. The heart of this event lies in Sion, where athletes can choose from an array of race formats designed to cater to all levels. The main events include the Full Ironman (3.8 km swim / 180 km bike ride and climb with over 425 meters elevation gain / marathon run), Half Ironman, Olympic distance triathlon, and a shorter option for beginners. For those seeking something less competitive but equally engaging, there’s the Discovery race and the Gégé Splash Race, which combines swimming, paddleboarding, and an inflatable ring challenge. The cycling route is particularly memorable, winding through terraced vineyards that are among Europe's highest, offering breathtaking views of medieval castles like Valère and Tourbillon. Riders will face challenging climbs that test their endurance but also reward them with stunning Alpine scenery. The swim takes place in the pristine waters of Domaine des Îles, surrounded by towering mountains, while runners traverse along the Rhône River's banks, cheered on by enthusiastic crowds. The atmosphere at this festival is unique—combining a competitive spirit with an authentic and welcoming vibe that celebrates every participant’s achievement. Whether you’re leading the pack or crossing the finish line last, everyone receives recognition for their efforts in this picturesque setting under the shadow of the Alps. Post-race activities are as diverse as they are rewarding. Sion offers thermal baths to soothe tired muscles after a challenging day on the course. Families can explore the impressive Grande Dixence Dam, towering higher than Paris's Eiffel Tower and offering panoramic views. For those looking for a taste of local culture, Sion’s old town provides an array of culinary delights, including Valais dried meat paired with refreshing Fendant wine. The Valais Triathlon Festival is more than just a race; it’s an immersive experience that combines sport, nature, and community into one unforgettable event. Whether you’re there to push your limits or simply enjoy the camaraderie and scenery, Sion welcomes all athletes with open arms. Join us in Sion for this extraordinary celebration of endurance and spirit, where every finish line is a victory worth celebrating.
Races Offered
Triathlon 6-7 ans
Aug 14, 2026
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Distance —
Swim 0.0K Cycle 1K 0.4K
terrain
Type —
Multisports
timer
16:00
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Fr30.00
Triathlon 8-9 ans
Aug 14, 2026
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Distance —
Swim 0.1K Cycle 2K 0.9K
terrain
Type —
Multisports
timer
16:30
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Fr30.00
Triathlon 10-11 ans
Aug 14, 2026
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Distance —
Swim 0.1K Cycle 2K 0.9K
terrain
Type —
Multisports
timer
17:00
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Fr30.00
Triathlon 12-13 ans
Aug 14, 2026
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Distance —
Swim 0.2K Cycle 4K 1.6K
terrain
Type —
Multisports
timer
17:45
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Fr30.00
Family Relais
Aug 14, 2026
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Distance —
Swim 0.1K Cycle 2K 0.9K
terrain
Type —
Multisports
timer
18:30
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Fr0.00
Triathlon Full
Aug 15, 2026
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Distance —
Swim 4K Cycle 120K 30K
terrain
Type —
Multisports
timer
07:00
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Fr420.00
Triathlon Full Relais
Aug 15, 2026
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Distance —
Swim 4K Cycle 120K 30K
terrain
Type —
Multisports
timer
07:00
sell
Fr0.00
Triathlon Half
Aug 15, 2026
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Distance —
Swim 3K Cycle 80K 20K
terrain
Type —
Multisports
timer
09:00
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Fr225.00
Triathlon Half Relais
Aug 15, 2026
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Distance —
Swim 3K Cycle 80K 20K
terrain
Type —
Multisports
timer
09:00
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Fr0.00
La Gégé Splash Race Libre
Aug 15, 2026
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Distance —
1K
terrain
Type —
Multisports
timer
15:00
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Fr25.00
La Gégé Splash Race Libre Relais
Aug 15, 2026
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Distance —
1K
terrain
Type —
Multisports
timer
15:00
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Fr0.00
La Gégé Splash Race Natation
Aug 15, 2026
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Distance —
1K
terrain
Type —
Multisports
timer
15:00
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Fr25.00
La Gégé Splash Race Natation Relais
Aug 15, 2026
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Distance —
1K
terrain
Type —
Multisports
timer
15:00
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Fr0.00
La Gégé Splash Race Stand-Up Paddle
Aug 15, 2026
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Distance —
1K
terrain
Type —
Multisports
timer
15:00
sell
Fr25.00
La Gégé Splash Race Stand-Up Paddle Relais
Aug 15, 2026
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Distance —
1K
terrain
Type —
Multisports
timer
15:00
sell
Fr0.00
Triathlon 14-17 ans
Aug 15, 2026
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Distance —
Swim 0.2K Cycle 10K 2.5K
terrain
Type —
Multisports
timer
19:15
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Fr40.00
Triathlon Découverte
Aug 15, 2026
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Distance —
Swim 0.2K Cycle 10K 2.5K
terrain
Type —
Multisports
timer
19:15
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Fr60.00
Triathlon Découverte Relais
Aug 15, 2026
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Distance —
Swim 0.2K Cycle 10K 2.5K
terrain
Type —
Multisports
timer
19:15
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Fr0.00
Triathlon Olympic
Aug 16, 2026
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Distance —
Swim 1.5K Cycle 40K 10K
terrain
Type —
Multisports
timer
08:00
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Fr100.00
Triathlon Olympic Relais
Aug 16, 2026
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Distance —
Swim 1.5K Cycle 40K 10K
terrain
Type —
Multisports
timer
08:00
sell
Fr0.00
Triathlon Short
Aug 16, 2026
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Distance —
Swim 0.5K Cycle 20K 5K
terrain
Type —
Multisports
timer
14:30
sell
Fr75.00
Triathlon Short Relais
Aug 16, 2026
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Distance —
Swim 500K Cycle 20K 5K
terrain
Type —
Multisports
timer
14:30
sell
Fr0.00
Weather History
These values represent the 3-year monthly averages for August in Sion.
thermostatTemperature
16.8° / 28.6°
wb_sunnyFeels like
17.8° / 28.5°
light_mode
Avg sunshine hours
11h 41m
water_drop
Avg rainfall
2.7 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
4.0 km/h (Light breeze)
opacity
Sweat loss rate
High
terrain
Course conditions
Hard and dry surface
sunny
Max UV Index
Moderate (4.9)
humidity_mid
Humidity
67.8%
wb_twilight
Sunrise
06:30
nightlight
Sunset
20:37
About Sion
Learn more about the host city, Sion.
Sion is the capital of the canton of Valais in Switzerland. With a population of 35,000, it is the biggest city in the canton and a regional centre. The cantonal administration as well as many of the higher schools are located here.
