The harbour of Marsala is an artificial harbour protected by two curvilinear coastal wharves and by an outer wharf. All jetties are equipped with rings, landing steps and petrol pumps. The sea bed is sandy and muddy. Depth is 4 meters.

Beacons and lights: 3080 (E1940) flashes white every 10 seconds, fl.2, 15 mile range on the head of the Western wharf; 3086 (E1942) flashes red every 3 seconds, 8 mile range on the head of the outer breakwater; 3092 (E1944) flashes green every 3 seconds, 8 mile range on the head of the Eastern wharf.