Capital City: Sao Tome
São Tomé and Príncipe (often called just "São Tomé" for short) is a small island nation off the Atlantic coast of Central Africa, located in the Gulf of Guinea, straddling the Equator, west of Gabon. Discovered and claimed by Portugal in the late 15th century, the islands' sugar-based economy gave way to coffee and cocoa in the 19th century -- all grown with plantation slave labor, a form of which lingered into the 20th century. Although independence was achieved in 1975, democratic reforms were not instituted until the late 1980s, and the first free elections were held in 1991.
At sea level, the climate is tropical—hot and humid with average yearly temperatures of about 27 °C (80.6 °F) and little daily variation. The temperature rarely rises beyond 32 °C (89.6 °F). At the interior's higher altitudes, the average yearly temperature is 20 °C (68 °F), and nights are generally cool. Annual rainfall varies from 5,000 mm (196.85 in) on the southwestern slopes to 1,000 mm (39.37 in) in the northern lowlands. The rainy season runs from October to May.
The equator lies immediately south of São Tomé Island, passing through an islet named Ilhéu das Rolas.