IRONMAN 70.3 Nice
Course breakdown and historical weather.
The French Riviera at half distance — sea, hills, and Promenade des Anglais
Nice, France · June 28, 2026
IRONMAN 70.3 Nice offers a taste of the legendary IRONMAN France Nice course at half distance. A Mediterranean swim in the Baie des Anges, a rolling to hilly bike into the arrière-pays, and a run along the iconic Promenade des Anglais. Nice has hosted world-class triathlon for decades — the course, the setting, and the atmosphere are proven.
- Swim
- 1.9 km
- Ocean
- Bike
- 92.2 km
- ↑1189m · Rolling
- Run
- 21.0 km
- ↑53m · Flat
- Air Temp
- 18–31°C
- Water Temp
- 23°C
- Wind
- 15 km/h
- SW
Swim Course
Mediterranean swim in the Baie des Anges
The swim takes place in the Baie des Anges — the Bay of Angels — off the Nice seafront. This is open Mediterranean swimming with the potential for chop on windy days. Water temperatures in late June are around 20–23°C, potentially at the wetsuit/non-wetsuit boundary. The Promenade des Anglais provides a stunning backdrop, and the beach start and finish are a Nice triathlon tradition.
- Open Mediterranean swim in the Baie des Anges
- Potential chop on windy days
- Promenade des Anglais as the backdrop
- Beach start on the Nice seafront
Bike Course
Into the hills behind Nice — climbing on the Côte d'Azur
The bike course heads into the hills of the Nice arrière-pays. This is a rolling to hilly course with genuine climbing through the southern Alps foothills. The roads are the same ones that the full-distance IRONMAN Nice uses, showcasing the stunning Riviera countryside with its perched villages, olive groves, and mountain views. Descending skill matters on the winding descent roads.
- Genuine climbing into the southern Alps foothills
- Stunning Côte d'Azur scenery
- Winding descent roads require bike handling skill
- The same legendary roads as IRONMAN France Nice
Run Course
The Promenade des Anglais — the most famous run in triathlon
The run along the Promenade des Anglais is one of the most iconic in triathlon. The flat seaside boulevard with the Mediterranean on one side and the Belle Époque hotels on the other creates a setting that's hard to beat. The terrain is flat, the views are stunning, and the Nice crowds provide passionate French support.
- Promenade des Anglais — iconic triathlon setting
- Flat seaside running
- Mediterranean views throughout
- Passionate French spectator support
Race Day Conditions
Riviera summer — warm, sunny, and Mediterranean
Late June on the Côte d'Azur offers warm, sunny conditions. Air temperatures range from 18–28°C with moderate humidity. The Mediterranean climate at this time of year is reliably warm and dry. Afternoon heat can build, particularly on the inland bike sections away from the coastal breeze.
Related reading
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Performance starts dropping over 22°C and humidity makes it worse. How heat compounds across the bike and run — and why the bike hides it.
Read postYour Race Plan Isn't Generic — Why Course Intelligence Changes Everything
Same FTP on two different courses produces two completely different races. Elevation, wind, and shelter change what every watt is worth.
Read postPlan IRONMAN 70.3 Nice with Keiro
Get a complete pacing strategy for every discipline — built from this course, forecast weather, and your fitness.
Independent analysis. KeiroLabs is not the event organizer and is not affiliated with the race organizer.