The municipality lies in the west semi-equatorial zone characterized by double rainfall maxima occurring in June and October; the first rainy season from May to June and the second from September to October. The mean annual rainfall is between 125mm and 175mm. the dry seasons are really distinct with the main season commencing in November and ending in late February.

The favorable rainfall pattern promotes agricultural activities even though it negatively affects constructional works causing cost and time overruns on contracts. Temperature is found to be fairly uniform ranging between 26o C in August and 30oC in March. Relative humidity is generally high throughout the year, ranging between 70%-80% in the dry season and 75% – 80% in the wet season.