*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

East Asia: Water surpluses forecast in Shanghai; deficits eastern Sichuan

East Asia: Water surpluses forecast in Shanghai; deficits eastern Sichuan

Water surpluses are forecast to persist in Southeast China through March but with diminished severity, except in Shanghai and Jiangsu where exceptional surpluses may persist. Deficits will continue to emerge on the Liaodong Peninsula, eastern Sichuan, Shaanxi, Gansu, Ningxia, and eastern Yunnan. Exceptional deficits intermingled with conditions of both deficit and surplus are expected across northern China from central Inner Mongolia west and north into Mongolia. After March Southeast China is forecast to transition to normal conditions and anomalies elsewhere in the country will generally diminish in severity.

Southeast Asia & the Pacific: Water surpluses in Laos, Vietnam, & Malay Peninsula

Southeast Asia & the Pacific: Water surpluses in Laos, Vietnam, & Malay Peninsula

Water surpluses are forecast for Laos, central Vietnam, and the Malay Peninsula through March. Exceptional deficits will persist in Cambodia near Tonlé Sap Lake during this period. After March, a transition to water deficits in parts of Malaysia, Indonesia, and Papua New Guinea is forecast, and deficits will continue to emerge through September.

South Asia: Exceptional water deficits Tamil Nadu, Karnataka, Odisha, & Gujarat

South Asia: Exceptional water deficits Tamil Nadu, Karnataka, Odisha, & Gujarat

The forecast for India through March includes widespread exceptional deficits in Tamil Nadu, Karnataka, Odisha, and Gujarat, with deficits of varying severity for much of the remainder of the country. Surpluses will persist in northwest Jharkhand, West Bengal, Nepal, and Bangladesh. After May deficits in India will diminish considerably, though severe to exceptional deficits are forecast for northwest Gujarat and across the border into Pakistan, and in Assam and Arunachal Pradesh.

Africa: Water deficits persist, surpluses forecast for Botswana

Africa: Water deficits persist, surpluses forecast for Botswana

The extent of exceptional water deficits across the continent is forecast to diminish through March, though extreme deficits will continue to emerge in some areas of the Sahel. A large pocket of surplus is forecast to emerge at the intersection of Angola, Namibia, and Botswana. From April through June the intensity of deficits across northern Africa will increase while diminishing from the southern Sahel through southern Africa.

South America: Exceptional water deficits forecast for Brazil; surpluses in Uruguay

South America: Exceptional water deficits forecast for Brazil; surpluses in Uruguay

A vast expanse of exceptional water deficit is forecast in central Brazil as well as large pockets in some western states. Deficits of lesser severity are forecast for northern Venezuela, western French Guiana, Bolivia, Chile, and rivers in southern Argentina. Surpluses are forecast for central Colombia, northern Guyana, northern Brazil, Rio Grande do Sul (Brazil), Uruguay, and northeastern Argentina. 

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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