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 Seychelles.

Impacts Water

Water Security, particularly considering issues of storage and distribution, requires urgent attention and needs to take into account projected population growth, whilst reducing demand for treated water, using more rainwater, improving efficiency of the distribution system, and improving water storage capacity. Increasing water demand from the residential, commercial, agriculture, and tourism sectors is exacerbated by changes in rainfall patterns and a limited water storage capacity (NDC). At present, water to supply the agricultural sector is heavily dependent on rainfall and the country’s water storage capacity is constrained by the natural topography of its islands. Most of the country’s farmers currently use irrigation to provide water to their crops, which means that any restrictions placed on water use during extended dry spells impacts their livelihoods. Furthermore, crop failure is becoming more common in the coastal zones as a result of increased flooding and higher levels of soil salinity.

This section provides insights into projected climate change impacts on various hydrological indicators.


Data presented under Historical Climate Conditions are reanalysis products derived from ERA5-Land data. ERA5-Land is a global land-surface dataset at 9 km resolution, consistent with atmospheric data from the ERA5 reanalysis from 1950 onward. Climate reanalyses combine past observations with models to generate consistent time series of multiple climate variables. They provide a comprehensive description of the observed climate as it has evolved during recent decades, on 3D grids at sub-daily intervals. 

This data has been collected, aggregated and processed by the Climate Resilience Cluster of the European Space Agency’s (ESA) Earth Observation for Sustainable Development (EO4SD) initiative.