Calgary, Alberta, experiences a transitional climate during September. Typically, the month sees a shift from summer’s warmth to autumn’s cooler temperatures. Daily highs average around 16C (61F), while overnight lows can dip to near 4C (39F). This period is characterized by decreasing daylight hours and an increasing likelihood of frost, especially towards the end of the month. Precipitation levels are generally moderate.
Understanding these climatic conditions is essential for anyone planning to visit or reside in Calgary during this time. Packing layers of clothing is recommended to accommodate fluctuating temperatures throughout the day. The pleasant early autumn weather provides opportunities for outdoor activities like hiking and biking, while the cooler evenings are perfect for enjoying the city’s cultural attractions. Historically, September has marked the beginning of the harvest season in the region, influencing local festivals and traditions.