A jet propulsion watercraft includes a vessel body, a steering nozzle, and a bucket. The steering nozzle includes a jet port from which a jet of water is ejected to propel the vessel body. The bucket is configured to move to a retracted position away from the jet of water ejected from the jet port and a jet receiving position to receive the jet of water ejected from the jet port. The bucket includes a right opening, a left opening, a first opening, and a second opening spaced apart from the first opening. The jet of water flows rightward from the right opening, leftward from the left opening, and rearward from the first opening and the second opening when the bucket is located in the jet receiving position. The first opening is located at least partially rightward of a right end of the jet port. The second opening is located at least partially leftward of a left end of the jet port.