Located in the Swiss Alps at the foot of the Matterhorn, Zermatt experiences a transition in climate during September. Typically, this period marks the shift from summer to autumn, bringing cooler temperatures and an increased likelihood of snowfall, especially at higher elevations. Daytime temperatures average between 10-15C (50-59F), while nighttime temperatures can drop to near or below freezing. Clear, sunny days are still common, but the weather can change rapidly in mountainous regions.
Understanding the climatic conditions prevalent in this alpine village during this month is crucial for visitors. Packing appropriate clothing layers for both warm sunshine and potential cold snaps, including waterproof and windproof outerwear, is essential. September offers a unique opportunity to experience the beauty of the region with fewer crowds than the peak summer months while still enjoying a variety of outdoor activities, from hiking and biking at lower altitudes to mountaineering and glacier trekking for the more adventurous. The shift in seasons often brings stunning displays of autumn foliage in the surrounding valleys, adding another dimension to the scenic beauty.