Melbourne’s Annual Water Outlook report provides an overview of Greater Melbourne’s water situation, including information on storage levels, how much water is being used, and water restriction forecasts.
It brings together data and analysis from Greater Western Water, Melbourne Water, South East Water and Yarra Valley Water to help us and our customers plan and conserve water effectively.
The Melbourne Water Outlook 2026 report is available below.
Melbourne Water Outlook Quarterly Updates
While dry conditions continue, quarterly updates will be published at the end of each season including an overview of system storage levels, customer water use and the likelihood of restrictions.
These updates will be provided in March, June and September.
June 2026 Update
With below average rainfall in autumn Melbourne’s water storage levels have continued to decline.
Summary of key points:
As of 1 June 2026, Melbourne’s water storages were at 63.4%, declining by 6.1% (111 billion litres) since our last update on 1 March 2026.
Household water use remains high at 162 litres per person per day, exceeding Target 150, which encourages households to use no more than 150 litres per person per day.
150 billion litres of water was ordered from the Victorian Desalination Plant for the 2026/27 supply year, and this is currently being delivered into the system.
Local Greater Western Water storages
Drinking water in the northwest of our service region comes from local creeks, reservoirs and bores (groundwater), supplemented by water from the Melbourne system.
Local storages have declined by 7.3% since 1 March 2026.
