The best time to visit Southampton is during the late spring and summer months, from May to September, when the weather is generally at its finest.During this period, you can expect warmer temperatures and more sunshine, making it ideal for exploring the city's attractions and enjoying outdoor activities. The average daily temperatures range from 15°C to 22°C (59°F to 72°F), with longer daylight hours. This weather is superb for strolling along the waterfront, visiting the historic Old Town, or taking a ferry to the Isle of Wight.Events like the Southampton International Boat Show, usually held in September, attract many visitors, so booking your accommodation in advance is a good idea if you plan to visit then. For those who enjoy a lively option and outdoor dining, the summer months offer plenty of opportunities to experience the city at its most active.If you prefer to avoid the busiest crowds and don't mind slightly cooler temperatures, late spring (May-June) and early autumn (September) still offer pleasant weather with fewer tourists.