Climate of São Tomé and Príncipe

At sea level, the climate is tropicalhot and humid with average yearly temperatures of about 27 C (80.6 F) and little daily variation. 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 (196.9 in) on the southwestern slopes to 1,000 mm (39.4 in) in the northern lowlands. The rainy season runs from October to May.

Rivers in São Tomé and Príncipe

The Contador River is located in the northwest of São Tomé and its river valley is possibly the deepest in the country. Several streams run down from the volcanic highlands into the Gulf of Guinea.There are no significant lakes on São Tomé and Príncipe.

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