Congo (Republic of the)

Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. Explore the overview for a general context of how climate change is affecting Congo (Republic of the).

Climate Data Historical

The Republic of Congo has an equatorial climate with a bimodal rainfall pattern and temperature structure. March through May sees a rainy season as well as September through November. Mean monthly temperatures range from 23-26°C, with February through March experiencing the highest temperatures, and June through August experiencing the lowest. The length of the dry season follows a gradient from south to north, with southern locales experiencing a longer dry season than northern ones. The dry season extends for 3 to 4 months at 2°S and 1 to 2 months for the rest of the country. Mean annual precipitation for the Republic of Congo is 1,612 mm. The wettest areas of the country are between 1-3°S, with annual precipitation above 2,000 mm. The Inter-Tropical Convergence Zone (ITCZ) is also an important force in driving the rainy seasons as it migrates between the equator and the tropics throughout the year. 


  • Mean annual temperature has increased by 0.6°C. 
  • The cities of Brazzaville and Pointe-Noire have seen average temperatures increase between 0.6°C and 0.8°C. 


  • Austral summer precipitation has experienced a reduction in the latter part of the season over the western areas of southern Africa, which includes Nambia through Angola, and toward the Congo. 
  • Mean annual precipitation has decreased over the Republic of Congo between the 1950's-1980's.
  • The intra-seasonal precipitation pattern during the September-November and March-May rainy seasons have fluctuated in recent years, either shortening and/or lengthening seasons.

This section provides the options to visualize historical climate data for different timeframes via map and annual cycle chart.


Click on map to change chart data from country aggregated to site-specific data.