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 Mauritania.

Impacts Water

West Africa’s water supply is unevenly distributed and poorly accessible due to undeveloped water supply systems, and crosses national boundaries, creating significant management challenges. 90% of water supply in Mauritania comes from outside the country. Furthermore, surface water is limited and often seasonal, making groundwater a primary source of water for many people in the region. Limited infrastructure in the city results in poor quality drinking water.  In urban areas, intense precipitation is likely to impact the water infrastructure, as the increased volumes of water overwhelm sewer systems and water treatment plants. This could also lead to an increase in the amount of runoff into rivers and lakes, washing sediment, nutrients, pollutants, trash, animal waste, and other materials into water supplies making them unusable, unsafe, or in need of water treatment and increasing cost for water purification to supply potable water to communities.

This section allows you to gain insights into climate change impacts on hydrological statistics based on climate future scenarios.


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.