Bouna's climate is characterized by two distinct wet seasons. The first season begins in March and April with moderate rainfall, peaking at an average of 144 mm in June, before gradually decreasing until September. A brief dry spell follows, lasting from October to February, with the lowest rainfall occurring in December with only 14 mm. However, this period also experiences relatively high temperatures, often above 28°C. The second wet season starts again in March, bringing a new cycle of rainfall and warm temperatures.