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 Guyana.

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 0.9 to 3.3°C by the 2060's, and 1.4 to 5.0 degrees by the 2090's. 
  • The projected rate of warming is similar in all seasons, but more rapid in the southern, interior regions of the country than in the northern, coastal regions.
  • All projections indicate substantial increases in the frequency of days and nights that are considered ‘hot’ in current climate.
  • All projections indicate decreases in the frequency of days and nights that are considered ‘cold’ in current climate. These events are expected to become exceedingly rare, occurring on maximum of 4% of days in the year, and potentially not at all, by the 2090's.


  • Projections of mean annual rainfall from different models in the ensemble project a wide range of changes in precipitation for Guyana.
  • Ensemble median values of change by the 2060's are consistently negative for all seasons and emissions scenarios.
  • Maximum 1‐ and 5‐day rainfalls show little consistent change, but tend towards positive changes in the seasons in the southern parts of the country.

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.