Equatorial monsoon, summer - wet winter - dry. Monthly air temperature - from +18 C to +27 C, the hottest month - April (+30 C), coldest - August (26 C). Precipitation occurs mainly in summer, from May to October, but throughout the country are distributed very unevenly: on the shores of 170 rainy days a year, falling to 4300 mm. rainfall, and in inland areas, separated from the ocean mountain range, not more than 1500 mm. In January and February blowing "harmattan" - a dry, dusty wind from the north, in the coastal areas of the country of its effect is almost imperceptible.