Yes, you can absolutely swim in the Ligurian Sea in 2026, and it is considered one of the most beautiful bodies of water in the Mediterranean for doing so. The coastline of Liguria, Italy—often called the Italian Riviera—is dotted with world-class swimming spots, from the sandy shores of Monterosso al Mare in the Cinque Terre to the crystal-clear coves of Portofino. In 2026, the water quality remains high due to strict environmental protections within the Portofino Protected Marine Area. The swimming season typically runs from late May through September, with water temperatures peaking around 25°C (77°F) in August. For those brave enough for "winter dips," the sea remains around 13°C (55°F) in December. Visitors should be aware that many beaches are "pebbly" rather than sandy, so water shoes are often recommended. Snorkeling is also a major draw, as the rocky seabed is home to vibrant Posidonia seagrass and diverse Mediterranean fish.