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 Ghana.

Climate Data Projections

The climate science community sources a suite of global climate models to help decision makers understand the projections of future climate change and related impacts, among the most widely used are the Coupled Model Intercomparison Project, Phase 5 (CMIP5) models included in the IPCC's Fifth Assessment Report (AR5). Climate projections can be presented via individual models or through multi-model ensembles. The Climate Change Knowledge Portal (CCKP) supports the analysis of climate impacts using multi-model ensembles, as they represent the range and distribution of the most plausible projected outcomes when representing expected changes.


  • The mean annual temperature is projected to increase by 1.0-3.0°C by the 2060's, and 1.5-5.2°C by the 2090's.
  • The projected rate of warming is most rapid in the northern inland regions of Ghana.
  • All projections indicate substantial increases in the frequency of hot days and nights.


  • Total annual rainfall is projected to decline by 1.1%, and 20.5% in 2020 and 2080, respectively.
  • The proportion of total annual rainfall that falls in ‘heavy’ events tends toward increases and there is a trend in the projections toward a decrease in January-June rainfall (dry season), and increases in July-August rainfall (wet season).
  • Projected changes in 1‐ and 5‐day rainfall maxima tend toward increases.

This section provides the options to visualize climate variables and indices derived from scientifically vetted CMIP5 projections for different timeframes, statistics, emission scenarios, and climate models.

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Use the menu above to visualize different climate projection layers and chart data. Click on the map to get location specific data.