 The country's lowest point is on the Senegal River (23 m) and its highest point is Hombori Tondo (1155 m).Mali is one of the hottest countries in the world.The thermal equator, which matches the hottest spots year-round on the planet based on the mean daily annual temperature, crosses the country Most of Mali receives negligible rainfall and droughts are very frequent Late April to early October is the rainy season in the southernmost area.