*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

Europe: Water deficits forecast for Finland, Baltics, Croatia, & Spain

Europe: Water deficits forecast for Finland, Baltics, Croatia, & Spain

Water deficits will shrink considerably in Central and Eastern Europe through March, but intense deficits are forecast for Finland, Sweden, Slovenia, Croatia, and Macedonia. Severe deficits will emerge on the Iberian Peninsula and deficits of varying intensity are forecast for Estonia, Latvia, northern Belarus, Italy, pockets of the Balkans, and central European Russia. Areas of surplus include northern European Russia, southern Sweden, pockets of the UK, Switzerland, Austria, Czech Republic, Romania, and scattered pockets of Central and Eastern Europe.

South America: Water deficits forecast on São Francisco River, surpluses in Uruguay

South America: Water deficits forecast on São Francisco River, surpluses in Uruguay

The forecast through March indicates that water deficits in the Amazon Basin will shrink, but exceptional deficits will persist in southern Amazonas and the center of the country, and intense deficits will emerge Central-West and Southeast states and along the São Francisco River. Other areas of deficit include Peru and Chile. Surpluses will emerge in northeastern Argentina, Uruguay, and Rio Grande do Sul, Brazil, with exceptional surpluses in eastern Uruguay.

East Asia: Widespread water surpluses to continue in Southeast China

East Asia: Widespread water surpluses to continue in Southeast China

The forecast through March indicates a vast block of exceptional water deficits in southern Mongolia and Inner Mongolia, and a path of intense deficits stretching to China’s western border. Beijing, Hebei, and western Liaoning will also see exceptional deficits, and deficits are forecast in Shandong and Shanxi. Other areas of deficits include Henan, Hubei, Shaanxi, eastern Sichuan, eastern Yunnan, and Hong Kong. Surpluses in Southeast China will increase, with exceptional surpluses forecast on the Lower and Middle Yangtze River and in Jiangxi, Hunan, and into eastern Guangxi.

Mexico, Central America, & the Caribbean: Water deficits forecast for Yucatan & Jamaica

Mexico, Central America, & the Caribbean: Water deficits forecast for Yucatan & Jamaica

For the next three months, water surpluses are forecast in Mexico for northern Coahuila, along Sinaloa’s northern coast, and from southern Durango through Mexico City. Deficits are expected in the northern Yucatan and scattered small pockets throughout the south. Deficits along the Rio Grande in Chihuahua will moderate. Deficits in Cuba and Hispaniola will become mild, but intense deficits will emerge in eastern Jamaica.

Canada: Water deficits will persist in Ottawa-Gatineau

Canada: Water deficits will persist in Ottawa-Gatineau

The forecast through March indicates a pattern of water anomalies similar to the prior three months. Notable changes are as follows: deficits are expected to increase and intensify in southern Saskatchewan and to a lesser extent in southern Alberta; and, moderate surpluses will emerge in southwestern British Columbia and along the length of BC’s coast. Persisting conditions include intense deficits in the Ottawa-Gatineau Region of Quebec and across the border into Southern Ontario.

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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