*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

Mexico & C. Amer. & Carib

Mexico, Central America, & the Caribbean: Severe water deficits forecast for Baja & Sonora

Mexico, Central America, & the Caribbean: Severe water deficits forecast for Baja & Sonora

Exceptional water deficits are expected to nearly disappear in Mexico April through June, with moderate deficits persisting in Chiapas and Tabasco. Severe to exceptional deficits are forecast to emerge in the Baja Peninsula and Sonora and moderate deficits will emerge in Guatemala. From July through September moderate to extreme deficits are forecast to re-emerge in southern Mexico, persist in northern Baja, and emerge in Guatemala, El Salvador, western Honduras, western Nicaragua, northern Costa Rica, and Jamaica.

Mexico, Central America & the Caribbean: Exceptional deficits forecast in Mexico for Nayarit, Michoacán, and Puebla

Mexico, Central America & the Caribbean: Exceptional deficits forecast in Mexico for Nayarit, Michoacán, and Puebla

Exceptional water deficits are forecast in Mexico from March through May in Nayarit, Michoacán, and southern Puebla into northern Oaxaca. Deficits are also forecast for the Yucatán Peninsula, the Baja Peninsula, northern Mexico, and Guatemala. Surpluses are forecast for eastern Honduras, Nicaragua, and northern Costa Rica. After May the extent and severity of deficits in Mexico will decrease but moderate deficits are forecast to persist in the south and emerge in Central America.

Mexico, Central America & the Caribbean: Water deficits ahead for Mexico, southern Guatemala

Mexico, Central America & the Caribbean: Water deficits ahead for Mexico, southern Guatemala

Water deficits are forecast to emerge throughout Mexico, with a vast expanse of severe deficits across northern Mexico including the Baja Peninsula and pockets of more intense deficits in the southern states and in Yucatan and Quintana Roo. Deficits are also forecast for southern Guatemala, Jamaica, eastern Cuba, and eastern Dominican Republic. Deficits in the region are expected to diminish in severity after April.

Mexico, Central America & the Caribbean: Water deficits in southern Mexico, Jamaica

Mexico, Central America & the Caribbean: Water deficits in southern Mexico, Jamaica

The forecast through March indicates scattered moderate water deficits throughout much of Mexico with pockets of exceptional deficits in the south and the Yucatan Peninsula. Deficits will persist in Guatemala and emerge in eastern Jamaica. Surpluses are forecast for eastern Honduras, Nicaragua, Costa Rica, Panama, and Haiti.

Mexico, Central America, & the Caribbean: Water deficits in Mexico & Guatemala

Mexico, Central America, & the Caribbean: Water deficits in Mexico & Guatemala

Water deficits of modest severity are forecast throughout many parts of Mexico over the next six months with pockets of exceptional deficits in Oaxaca, Yucatán, Guerrero, Michoacán, western Jalisco, and Nayarit. Moderate to severe deficits are forecast to persist in western Cuba and emerge in eastern Cuba and in Jamaica through February. Deficits will persist in Guatemala; surpluses will persist in Honduras, Nicaragua, and Costa Rica but may transition to both surplus and deficit.

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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