September in New York City offers a transition from summer’s heat to autumn’s crispness. Average temperatures typically range from highs in the mid-70s Fahrenheit (low 20s Celsius) to lows in the mid-60s Fahrenheit (high teens Celsius). However, variations can occur, with some days experiencing lingering summer heat and humidity, while others offer a preview of cooler fall weather. Rainfall is moderate and fairly evenly distributed throughout the month.
Understanding the city’s transitional climate during this month allows visitors and residents to pack appropriately, ensuring comfort and preparedness for a variety of activities. This knowledge contributes to a more enjoyable experience, whether exploring museums, strolling through Central Park, or enjoying the city’s vibrant nightlife. Historically, September has marked the return to routines following the summer holidays, influencing fashion choices and the city’s overall atmosphere.