Typically, this time of year on the Cape offers a pleasant blend of summer’s warmth and autumn’s crispness. Average high temperatures range from the low to mid-70s Fahrenheit (low 20s Celsius), while overnight lows dip into the 50s Fahrenheit (low teens Celsius). Ocean temperatures remain relatively warm, often in the high 60s or low 70s Fahrenheit (high teens and low 20s Celsius). This period experiences a decrease in humidity compared to the summer months, making outdoor activities more comfortable. Rainfall is generally moderate, and while hurricane season is still active, the likelihood of a direct hit diminishes as the month progresses.
The agreeable climate of this period makes it an attractive time for visitors. The summer crowds thin out, leading to a more relaxed atmosphere and often lower accommodation rates. Beaches remain enjoyable for swimming, sunbathing, and other coastal pursuits. The cooler temperatures are ideal for hiking, biking, and exploring the Cape’s charming towns and natural landscapes. Historically, September has marked the transition from the bustling summer season to the quieter autumn months, providing an opportunity for locals and visitors alike to savor the region’s beauty before the onset of winter.
