The best time to go to New London, Connecticut, is during the late spring (May to early June) and early autumn (September to October) when the weather is pleasant and the crowds are smaller.Late spring offers comfortable temperatures, typically ranging from 15°C to 25°C, making it ideal for exploring the city's outdoor attractions like Ocean Beach Park or taking a ferry to Block Island. The blooming flowers add a touch of beauty to the historic streets.Early autumn brings crisp air and often spectacular fall foliage, especially in the surrounding areas. Temperatures are usually between 10°C and 20°C, great for enjoying a stroll through the Waterfront Park or visiting the Custom House Maritime Museum. This period also sees fewer tourists compared to the peak summer months, allowing for a more relaxed experience.While summer (July and August) is popular for beachgoers and includes events like Sailfest, it can be quite warm and crowded, with hotel prices often at their highest.