The best time to visit Dunkirk, New York, is during the summer months, from June to August, when the weather is warm and conducive to outdoor activities.During this period, temperatures are pleasant, averaging in the 70s Fahrenheit, making it ideal for enjoying the city's lakeside attractions. The Dunkirk City Pier becomes a popular spot for fishing and strolling, and the nearby Point Gratiot Park offers beaches and picnic areas. This time of year is especially appealing for families looking for a relaxed vacation with plenty of opportunities for outdoor fun.Early autumn, specifically September, also offers a nice travel experience. The weather remains comfortable, and the crowds are typically smaller after the peak summer season.