The climate is warm and mostly moist, with an average temperature of . The rainy season is from June to September. Land wildlife mostly consists of small mammals, bats, and lizards. The bay contains fish such as red snapper, bass other fish and sea turtles. Because of the climate's temperature and humidity, the beaches of Zihuatanejo are apt for the incubation of various sea turtles eggs such as the leatherback, hawksbill and olive ridley. The annual program for the collection and protection of turtle eggs starts at the beginning of June and lasts until the end of December. 31 December is celebrated with a massive baby turtle release along the coasts north and south of Zihuatanejo bay. The program consists of twenty one incubation corrals, along of beaches. These corrals protect the thousands of turtle eggs collected during this time period by government staff and trained volunteers. After birth, they are kept here until they grow large enough to avoid most natural predators and increase their chances of survival.