宮古群島
The climate of the islands ranges from humid subtropical climate (Köppen climate classification "Cfa") in the north to tropical rainforest climate (Köppen climate classification "Af") in the south. Precipitation is very high and is affected by the rainy season and typhoons. Except the outlying Daitō Islands, the island chain has two major geologic boundaries, the Tokara Strait (between the Tokara and Amami Islands) and the Kerama Gap (between the Okinawa and Miyako Islands). The islands beyond the Tokara Strait are characterized by their coral reefs.