Lausanne Semi-Marathon
Race Day Weather
Cool start — fast day potential, warming through the race, chance of rain
A cool 41°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 53°F through the course will gradually increase perceived effort in the second half. There's a chance of rain, so have a backup gear plan ready. Moderate humidity at 78% is worth noting for effort level, especially in later miles.
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Race Info
The half marathon starts at Place de Milan on the Lausanne waterfront and follows Lake Geneva east through Pully, Paudex and Lutry toward the Lavaux vineyards. The turnaround comes at Cully, about halfway, and the route returns along the same lakeshore past the Olympic Museum. It finishes at Place Bellerive Plage, a mostly flat course beside the water.