Jamaica Information Weather: The climate in Jamaica is tropical, with hot and humid weather, although higher inland regions are more temperate. Capital: Kingston. Chief towns and cities include the capital Kingston, Portmore, Spanish Town, Mandeville, Ocho Ríos, Port Antonio, Negril, and Montego Bay. Geography: Jamaica is the third largest island and the fourth largest country in the Caribbean. The island is home to the Blue Mountains inland and is surrounded by a narrow coastal plain. Most major towns and cities are located on the coast.