*Water Watch Lists
ISciences staff
ISciences Worldwide Water Watch List June 2025

The forecast through February 2026 expects deficits in Central and Eastern Europe, Central Asia, and the Levant. Surpluses are expected in the western Amazon, the Sahel and southern Africa, and northeastern Australia.

ISciences Worldwide Water Watch List June 2025
Australia & New Zealand
ISciences staff
Australia & New Zealand: Surpluses spread ...

Severe to exceptional surpluses will remain throughout Queensland. Exceptional deficits will occur in portions of Victoria, Western Australia, Tasmania, and New Zealand. 

Australia & New Zealand: Surpluses spread throughout Queensland
East Asia
ISciences staff
East Asia: Deficits continue in NW China, ...

Exceptional deficits will occur in northwestern and southeastern China, widespread throughout the Yangtze River Basin. Isolated pockets of surplus will affect portions of central and northeastern China. 

East Asia: Deficits continue in NW China, Yangtze River Basin
Southeast Asia & Pacific
ISciences staff
Southeast Asia and the Pacific: Deficits ...

Exceptional surpluses throughout Maritime Southeast Asia will mostly diminish, though pockets of severe to exceptional deficits will persist in portions of the Philippines, Indonesia, Papua, West Papua, and New Guinea. 

Southeast Asia and the Pacific: Deficits persist in Maritime SE Asia
South Asia
ISciences staff
South Asia: Deficits remain in Afghanistan, ...

Exceptional surpluses in India will mostly dissipate, transitioning to moderate to severe surpluses. Exceptional deficits will remain in Afghanistan and Pakistan. 

South Asia: Deficits remain in Afghanistan, Pakistan, surpluses persist in India

Mexico, Central America, & the Caribbean: Water deficits to persist on Baja, continue to emerge in Southern Mexico, Guatemala

Water deficits are forecast to persist on the Baja Peninsula and will continue to emerge in southern Mexico. Moderate surpluses are forecast in Sonora. In Central America deficits are forecast in Guatemala, El Salvador, southern Honduras, western Nicaragua, and eastern Panama. In the Caribbean dry conditions are forecast for Haiti; surpluses in central Cuba will persist through the spring months.

East Asia: Water surpluses to persist in SE China, deficits in the NE & Mongolia

Moderate to exceptional water surpluses are forecast to persist in southeast China. Moderate to exceptional deficits are forecast for northeast China, exceptional deficits in Mongolia, and both deficits and surpluses are forecast in western regions of China including the Tibetan Plateau. Surpluses are expected on the Yangtze River in April and on the Yellow River in June.

South America: Exceptional water deficits to persist across northern South America, particularly the Amazon Basin

Overall, exceptional water deficits are forecast to persist across northern South America, particularly in the Amazon Basin. Deficits are also forecast in Peru and Chile. Water surpluses are forecast in Paraguay; Uruguay; the Ibara Wetlands and Buenos Aires, Argentina; and Rio Grande do Sul, Brazil.

Southeast Asia & the Pacific: Water deficits to persist in many areas, especially Thailand

From April through June severe to exceptional water deficits are forecast in Thailand, Laos, Cambodia, Vietnam, the Malay Peninsula, Brunei, the Philippines, and southern Papua New Guinea. 

Many analyses reported in ISciences-authored blog posts are based on data generated by the ISciences Water Security Indicator Model (WSIM). Other sources, if used, are referenced in footnotes accompanying individual posts. WSIM is a validated capability that produces monthly reports on current and forecast global freshwater surpluses and deficits with lead times of 1-9 months at 0.25°x0.25° resolution. This capability has been in continuous operation since April 2011 and has proven to provide reliable forecasts of emerging water security concerns in that time-frame. WSIM has the ability to assess the impacts of water anomalies on people, agriculture, and electricity generation. Detailed data, customized visualizations, and reports are available for purchase.

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