State of Global Water Resources

The State of Global Water Resources Report, published annually by WMO, provides a comprehensive quantitative overview of global water resources, with a focus on hydrological variability and trends. It supports countries, decision makers and stakeholders in understanding the current state of water resources, identifying hotspots and supporting effective water management strategies. The report is based on data contributed by WMO Members, as well as information from global hydrological modelling systems and satellite observations provided by various partners.

Related publications

A large glacier flows between mountain ranges, ending in a lake under a cloudy sky, with rocky terrain in the foreground.
Publication
18 September 2025

State of Global Water Resources 2024
A person stands near a tripod by a reflective mountain lake with snow-covered peaks in the background.
Publication
07 October 2024

State of Global Water Resources 2023
A group of people on donkeys carrying water jugs.
Publication
12 October 2023

State of Global Water Resources 2022
Child standing near a dry lake holding a kite
Publication
29 November 2022

State of Global Water Resources 2021

Related press releases

Rocky cliffs rise above a partially frozen turquoise lake with floating ice and patches of snow under a clear blue sky.
Press Release
18 September 2025

From drought to deluge: WMO report highlights increasingly erratic water cycle
A symmetrical dam with flowing waterfalls under a cloudy sky, surrounded by lush green hills and a tranquil lake.
Press Release
07 October 2024

WMO report highlights growing shortfalls and stress in global water resources
A group of people on donkeys carrying water jugs.
Press Release
12 October 2023

WMO calls for better monitoring of increasingly erratic water cycle
Credit: WMO / Muhammad Amdad Hossain
Press Release
29 November 2022

State of Global Water Resources report informs on rivers, land water storage and glaciers