Cool Baltic water, a fast flat bike and a finish in a UNESCO-listed medieval old town — one of northern Europe's most atmospheric 70.3s.
1.9 km swim in the sheltered Baltic waters of Tallinn Bay off Pirita beach — cool, calm and often below 19 °C.
Fast one-lap 90 km bike on closed roads out along the coast and through the pine forests east of the capital, flat with gentle rollers.
Two-lap 21.1 km run along the seafront promenade and up into the cobbled streets of the medieval Old Town.
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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