The district falls within the wettest part of the Country. Average annual rainfall ranges between 140 mm to 173 mm. Occasional extremes may reach 211 mm. There are two main rainfall regimes. The first one starts from March and ends in July.
The second then starts from September to early part of December. Temperatures are generally high in most parts of the year ranging from 240 – 290 (750f – 830f). The maximum temperatures are experienced in March and the coolest month is August.
The interplay of heavy rainfall and soil types manifest itself in a thick vegetation cover. The semi-deciduous forest covers the northern part of the district, while the tropical rain forest is to the south where rainfall is heaviest. In between is the transitional zone.