With museums, art galleries, gorgeous churches, and ancient palaces, the city offers sightseeing for every season, even the cold and rainy ones. While winter is great for exploring, with very few tourists, the rain can be a challenge. Genoa in the late spring (April/May) and the early fall (September/October) is warm enough for enjoying an afternoon on the beach, but not so full of summering tourists that you feel swallowed by the throngs.