Rio de Janeiro, Rio de Janeiro, Brazil
Big-city racing against the mountains-meets-sea backdrop of Rio — warm water, a fast highway bike and a flat beachfront run.
1.9 km ocean swim off the sheltered sands of Rio's southern beaches, usually with mild swell and warm water.
Fast one-lap 90 km bike along the coastal expressway and tunnels, mostly flat and closed to traffic with a couple of short punchy rises.
Flat two-lap 21.1 km run along the beachfront promenade with big crowds and constant ocean views.
Actual monthly averages from the last 3 years (Open-Meteo). Real race day may vary.
Water temp uses athlete-reported values first, then official race data, then the marine archive (sea swims, measured at the nearest offshore point). Values tagged est. are modelled from recent air temperature for lakes and rivers, where no observational data exists.
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