The best time to go to Ossining is during the late spring (May to early June) or early autumn (September to October) when the weather is most pleasant for outdoor activities and exploring the area.During late spring, the temperatures are mild, and the local flora is in full bloom, making it ideal for enjoying the numerous parks and waterfront areas along the Hudson River. You'll find comfortable conditions for walks, picnics, and boat trips without the peak summer crowds or heat.Early autumn brings cooler, crisp air and the spectacular colours of the changing leaves, especially along the Hudson Valley. This period is superb for scenic drives, hiking, and visiting local farms and markets.