Victoria water restrictions could return in summer 2026-27, authorities warn

Victorian water authorities have warned that restrictions could return next summer if dry conditions persist and storages fail to recover over winter and spring.

Melbourne Water says restrictions are not currently expected, but the risk remains for summer 2026-27 if below-average rainfall continues and reservoir levels keep falling. Regional water corporations are making the same point: conserve now, because the next few months will determine how much pressure the system is under by summer.

The warning comes as officials watch a statewide storage picture that has already weakened. The Herald Sun reported Melbourne water storages were 64% full as of June 24, 2026, while regional Victorian storages were 48% full. It also reported statewide catchments were down 653,553 megalitres compared with the same time last year.

Those figures matter because winter and spring are usually the recovery period before demand rises in hotter months. If rainfall stays below average, authorities say the state could enter summer with less buffer than usual.

Dry conditions and rainfall outlook

The concern is being reinforced by seasonal forecasts pointing to drier and hotter conditions. A Bureau of Meteorology outlook highlighted risk of dry and hot winter and spring weather, adding to the chance that catchments will not refill enough before summer demand peaks.

Melbourne Water acting executive general manager Anna Lucas said autumn rainfall was about 7% below the 30-year average across Melbourne's four major catchments. That shortfall is not, by itself, a restriction trigger, but it leaves the system more exposed if winter and spring do not improve.

Water restrictions in Victoria are tiered, with stricter rules applied when storage and supply conditions worsen. Authorities are not saying restrictions are imminent, but they are clearly preparing the public for the possibility that tougher measures may be needed if the dry pattern continues.

Geelong and regional pressure

The pressure is not confined to Melbourne.

In Geelong, Barwon Water acting managing director David Snadden said the city would likely already be facing stage four restrictions without its link to the Melbourne grid. He said Melbourne storage facilities were supplying more than 60% of Barwon Water's water during the dry period.

That support has helped keep the system stable, but it also shows how dependent some regional areas have become on broader network connections when local supplies tighten.

Coliban Water general manager Adam Crameri said the situation after two dry years was concerning and that using water wisely now could reduce the likelihood of stricter restrictions later. His warning reflects a broader message from water corporations: conservation is being framed as an early defence, not just a response once rules are imposed.

The Herald Sun also reported that water levels would be critical in Geelong without the Melbourne link, and that desalinated water is helping secure supply. That network support has become part of Victoria's water-security strategy as local storages come under pressure.

Desalination as a buffer

Victoria's minister for water, Harriet Shing, said water security is more important than ever and noted that more than a quarter of water from taps is already coming from the desalination plant.

That is a significant buffer for a state trying to avoid harsher restrictions while rainfall remains uncertain. It also underlines how much Victoria now relies on a mix of desalinated water, recycled water and interconnections between systems to keep supplies stable when catchments underperform.

The Herald Sun reported desalinated water is being delivered into Cardinia Reservoir, adding another layer of resilience to the network. For now, that support appears to be helping authorities delay tougher action, but it does not remove the risk if the dry spell continues through winter and spring.

What happens next

Officials say the next rainfall periods will be decisive.

If winter and spring bring enough rain, storages may recover and the prospect of restrictions could ease. If they do not, the state may have to move closer to formal water-saving rules by the time summer demand peaks.

The key indicators now are straightforward: updated storage levels, seasonal rainfall and whether conservation efforts are enough to slow the decline. Authorities are also watching whether any regional systems move toward restrictions before metropolitan Melbourne.

The Herald Sun said stage four is the strictest level of Victorian water restrictions and that the last time stage four was in place anywhere in Victoria was April 2013. That history is part of why the current warnings are being treated seriously even though no restrictions are in place now.

For households, businesses and councils, the message from water authorities is to use water carefully before conditions force a harder response. The warning is not about an immediate cut-off. It is about avoiding one later in the summer if the state does not get the rain it needs.