*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

Canada: Water surplus in southern BC to increase

Canada: Water surplus in southern BC to increase

Water deficits are forecast for much of the eastern half of the country and will increase on the Ontario/Quebec border corridor. Widespread, intense surpluses will emerge in southeastern British Columbia (BC), particularly surrounding Kamloops and Kelowna. Intense deficits will continue to emerge around Prince George, BC. Deficits in the Upper Athabasca Watershed of central Alberta will intensify, becoming exceptional. Exceptional surplus conditions will persist from Fort McMurray, Alberta to Churchill Lake, Saskatchewan, and around Fort St. John in the Peace River Region of northeastern BC.

South America: Water deficits in northeastern Argentina to downgrade but persist

South America: Water deficits in northeastern Argentina to downgrade but persist

The extent of exceptional deficit will diminish considerably over the next few months. However, pockets are forecast in Amapá, Amazonas, Acre, Maranhão, Goiás, Minas Gerais, Mato Grosso do Sul, and São Paolo, Brazil; and, southeastern Venezuela, eastern Suriname, and French Guiana. Exceptional deficits in northeastern Argentina will downgrade to severe. Surpluses are forecast for northern Bolivia and eastern Paraguay. After June, moderate to severe deficits will continue to emerge across the northern bulk of the continent. Aforementioned deficits in Argentina will moderate.

Australia & New Zealand: Deficits persist in Tasmania & Channel Country

Australia & New Zealand: Deficits persist in Tasmania & Channel Country

A transition away from significant water deficit is forecast for mainland Australia. Exceptional deficits will shrink considerably, retreating to Channel Country in central Australia. However, intense deficits are forecast for western Tasmania, coastal Victoria, Darwin, and the southeastern tip of Western Australia. Moderate deficits are forecast for the remainder of New South Wales, much of South Australia, Northern Territory, and much of the northern half of Western Australia. Moderate deficits are forecast for North Island New Zealand, and New Caledonia.

Central Asia & Russia: Intense Water deficits forecast for Ural River Basin

Central Asia & Russia: Intense Water deficits forecast for Ural River Basin

The forecast through June indicates that water surplus will shrink in European Russia, persist in the Tom River watershed, and transition to deficit in the Ob River watershed. Deficits will emerge surrounding Orenburg on the Ural River, and between the Lower Tunguska and the Angara Rivers in the Yenisei watershed. In Kazakhstan, surpluses will emerge and persist in the north, but diminish elsewhere; deficits will emerge in the west, which will be extreme on the Ural River. Intense deficits are forecast for Turkmenistan, eastern Uzbekistan, western Kyrgyzstan, and Tajikistan.

Europe: Water deficits persist in Finland, Estonia, Latvia

Europe: Water deficits persist in Finland, Estonia, Latvia

Notable in the near-term forecast is the retreat of water surplus in Central Europe and a transition to moderate deficit. Deficits in Northern Europe are expected to persist and increase, with exceptional deficits in Finland, Estonia, and Latvia. Surpluses will remain intense in Hungary, southern Romania, Moldova, and eastern Bulgaria, and will increase in Ukraine. Surpluses will continue to emerge in Ireland and the UK, and will spread on the Iberian Peninsula. After June, mild deficits are forecast for Central Europe, more intense deficits in Northern Europe, and surplus in the western Iberian Peninsula.

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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