September typically marks the transition from summer to autumn in Switzerland. Expect a mix of sunny days and cooler temperatures compared to July and August. Average daytime temperatures can range from 10C to 20C (50F to 68F) depending on elevation and location. Higher elevations will experience cooler temperatures, and some alpine regions may see early snowfall. Rainfall is generally moderate throughout the month.
Understanding the prevailing climatic conditions during this period is crucial for travelers planning trips. Packing appropriate clothing for a range of weather scenarios is essential. The information allows for informed decisions about activities, accommodations, and transportation. Historically, September has been a popular time to visit Switzerland due to the pleasant weather and fewer crowds compared to peak summer months. This shoulder season often offers a balance between favorable weather and quieter attractions.