*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

South America: Water deficits to downgrade in Brazil but remain widespread

South America: Water deficits to downgrade in Brazil but remain widespread

The extent of exceptional water deficit in the region will diminish considerably through December, though deficits will cover most of Brazil and will be intense across the north, in Mato Grosso, São Paulo, and Paraná. Intense deficits are also forecast in Bolivia from east of La Paz through Cochabamba to the south, and from southern Peru through the Atacama Desert in northern Chile past Santiago. Surpluses will persist in Uruguay, and in Entre Rios and Buenos Aires Provinces in Argentina, and will emerge in Rio Grande do Sul, Brazil.

Mexico, Central America, & the Caribbean: Water surpluses forecast for Coahuila, Sinaloa, Chihuahua, & Zacatecas, Mexico

Mexico, Central America, & the Caribbean: Water surpluses forecast for Coahuila, Sinaloa, Chihuahua, & Zacatecas, Mexico

The forecast through December indicates pockets of intense water deficit in Mexican states along the southern Gulf of Mexico and across to the Pacific. Moderate deficits are forecast for Yucatan and Mexico’s southern Pacific coast. Surpluses will persist in Coahuila, and will increase in northern Sinaloa, western Chihuahua, and from Zacatecas through Mexico City. Surpluses are expected in eastern Guatemala and eastern Costa Rica. Deficits in Cuba will moderate.

East Asia: Intense water surpluses forecast for southern China

East Asia: Intense water surpluses forecast for southern China

Widespread water surpluses will emerge south of the Yangtze River and in the Pearl River watershed over the next few months and may persist through March. Surpluses are also forecast for Sichuan, Qinghai, and Tibet and may persist even longer. Deficits will increase and intensify from western Inner Mongolia through Xinjiang, and moderate to severe deficits will emerge from the North China Plain to the Yangtze River. Extreme surpluses are forecast for southern Japan, and deficits for southern North Korea.

South Asia: Deficits forecast to moderate in Afghanistan

South Asia: Deficits forecast to moderate in Afghanistan

The widespread exceptional water deficits that have dominated Afghanistan in recent months will moderate through December though deficits will remain more intense northeast of Kabul. Moderate deficits are forecast for southern Pakistan. In India, deficits will also moderate but will be intense along the Tungabhadra River in the southwest, and in Madhya Pradesh, Bihar, and Arunachal Pradesh. Areas of surplus include northernmost India, Uttar Pradesh, Nepal, Bangladesh, and Sri Lanka.

Europe: Moderate water deficits forecast through December

Europe: Moderate water deficits forecast through December

Moderate deficits will dominate much of Europe from through December, downgrading from prior exceptional deficits in many areas. Severe to extreme deficits are, however, forecast for southern Sweden, central Finland, southern France, Switzerland, and southern Germany. Norway is expected to transition from exceptional deficit to moderate surplus or normal conditions. Moderate surpluses are also forecast in Scotland and extreme surpluses in west-central Sweden. Surpluses of varying intensity are forecast for European Russia and eastern Ukraine.

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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