The best time to go to Ouistreham is during the late spring and summer months, from May through September, when the weather is mild and most conducive for enjoying the coastal activities and D-Day sites.May and June offer pleasant temperatures, fewer crowds than peak summer, and blooming landscapes. This period is ideal for couples who want to explore the D-Day landing beaches and museums, enjoy walks along the Sword Beach promenade, and visit the Pegasus Bridge Memorial without the busiest tourist season.July and August are the warmest months, great for families looking to spend time on the beach, swim in the English Channel, and enjoy outdoor dining. The town is fully active with all its amenities, including the ferry terminal and local markets, providing a lively option.September also presents a good option, with comfortable temperatures and fewer visitors after the summer holidays.