*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: Surpluses on Yellow and Yangtze Rivers to diminish, surpluses to persist in Zhejiang & Fujian

East Asia: Surpluses on Yellow and Yangtze Rivers to diminish, surpluses to persist in Zhejiang & Fujian

From October through December the severity of deficits on the Korean Peninsula will persist while that of the Shandong Peninsula is expected to diminish. The extent of exceptional deficits in Yunnan and Guangxi is forecast to shrink somewhat, but deficits will emerge from that region leading north. Surpluses on the Yellow and Yangtze Rivers will diminish, but surpluses will continue to emerge in Zhejiang, Fujian, and southern Taiwan. Widespread surpluses that have dominated China recently are notably absent in the January through March forecast. 

Southeast Asia & the Pacific: Exceptional water deficits to persist in Cambodia, surpluses in Laos

Southeast Asia & the Pacific: Exceptional water deficits to persist in Cambodia, surpluses in Laos

Though water surpluses are forecast for many parts of the region through December, exceptional deficits will persist in Cambodia and in southern Thailand along the Gulf of Thailand. Exceptional surpluses are forecast in northern and southern Laos; Java; Gorontalo Province in central Sulawesi Island, Indonesia; and western Flores Island. After December much of Southeast Asia, Malaysia, and parts of Indonesia will transition to deficit.

South America: Exceptional deficits along Brazil's northeastern coast

South America: Exceptional deficits along Brazil's northeastern coast

Over the next few months South America is forecast to transition away from widespread exceptional water deficits. However, from October through December exceptional deficits are forecast along Brazil’s northeastern coast, along with many parts of Chile, Tierra del Fuego, and the Falkland Islands. Surpluses of varying intensity are forecast in central Colombia, northern Peru, northern Bolivia, central Brazil, and northwestern Argentina. From January through March northern Brazil is forecast to transition from deficit to moderate surplus.

United States: Water deficits persist in the Northeast, surpluses in Upper Midwest

United States: Water deficits persist in the Northeast, surpluses in Upper Midwest

The outlook for the United States through December indicates that water deficits will continue to dominate much of the northeastern US, though the expanse of exceptional deficits is expected to shrink. Significant deficits will also persist from Ohio through the South, in Southern California, and along the Missouri and Yellowstone Rivers. A large block of surpluses will persist in Wisconsin, Minnesota and Iowa. After December deficits across the country will diminish considerably but surpluses in the upper Midwest are expected to persist and moderate surpluses will emerge in the Rocky Mountain States.

South Asia: Surpluses to persist in eastern Ganges basin, Nepal, Bangladesh

South Asia: Surpluses to persist in eastern Ganges basin, Nepal, Bangladesh

Water surpluses in Rajasthan, India are forecast to transition to both deficit and surplus in the next few months, while surpluses in the eastern Ganges basin persist. Surpluses are also forecast for: Andhra Pradesh, Odisha, Chhattisgarh, Myanmar, Nepal, Bangladesh, and Bhutan. Deficits are forecast north of Delhi, in India’s southern tip, and in Sri Lanka. From January through March deficits in India’s north and south, Sri Lanka, Afghanistan, and Pakistan will diminish, but exceptional deficits are forecast in Gujarat.

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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