Climate
Source: Atlas de l'Afrique – Burkina Faso, 2005
As this map illustrates, Burkina Faso is divided into 3 different climatic regions:
- The North of the country belongs to the Sahel zone. This area typically sees less than 600mm of rainfall and the dry season can last between 8 and 10 months.
- The largest climatic zone is the Sudan-Sahel zone, which covers central Burkina Faso . Rainfall is superior to that in the North but rarely goes past 1000mm.
- Southern Burkina Faso is covered by the Sudan zone, which is by far the most humid of the regions. Its rainy season lasts 6 months with rainfall of up to 1300mm.
Below are 3 graphs which explain the evolution of rainfall in various regions of Burkina Faso .

Source: Atlas de l'Afrique – Burkina Faso, 2005
These graphs show the various atmospheric conditions in relation to their geographic location and time of year.

Source: Atlas de l'Afrique – Burkina Faso, 2005