St. Moritz in September

December through March gives you the most reliable snow, but January and February are peak season — expect crowds and premium prices. The White Turf horse races happen on the frozen lake in February, which brings an extra level of madness to an already busy time. March offers the best balance of good snow and slightly lower prices, plus longer days mean more time on the slopes. But here's where St. Moritz surprises people: summer is spectacular. June through August transforms the mountains into hiking paradise, and the lakes warm up enough for swimming. The Engadin Marathon happens in summer, and the hiking trails connect to mountain huts where you can sleep under the stars. Hotel prices drop by 50% or more, and you get the same stunning scenery without the ski lift lines.