A seat assembly is provided for a personal watercraft. The seat assembly includes a forward seat portion and a rearward seat portion. The forward seat portion is configured for fixed attachment to a deck of a personal watercraft. The forward seat portion is configured to contact and at least partially support an operator during driving of the personal watercraft. The rearward seat portion is selectively movable by an operator between a driving position and a fishing position. In the driving position, the rearward seat portion is adjacent to the forward seat portion. In the fishing position, the rearward seat portion is spaced from the forward seat portion. A personal watercraft including such a seat assembly is also provided.