Burkina Faso
The country mainly consists of peneplain with a few isolated hills. In the southwest there is a sandstone massive and hills there are twice as high (500 – 550 meters) as in the rest of the country. The plains are cut through by a number of rivers. Most of these rivers are part of the Volta river system.
Burkina Faso has a tropical climate. The utmost north has a desert climate with less than 500mm rainfall a year. The centre of the country has a steppe climate and the south a tropical savanna climate. Towards the south the average amount of rainfall increases up to approximately 1200mm in the southwest. The average temperature is 29°C. The rainy season lasts from June until October but is shorter in the north of the country. Still Burkina Faso has a relatively dry climate. The dry season lasts from November until May. Especially the Harmattan, a hot dry wind from the Sahara blows from December until February.