Water allocations in the Goulburn and Loddon systems move from 76 per cent of high-reliability water shares to 80 per cent.
The Broken system increases from 49 per cent to 58 per cent.
The Bullarook system increases from 38 per cent to 43 per cent.
The Murray and Campaspe systems remain at 100 per cent.
Resource Manager Mark Bailey said more water was available following widespread rain across northern Victoria in early March.
“Rain at the start of the month produced small flows into the major storages,” Dr Bailey said.
“These flows, plus the volumes added by rain falling directly over the storages, provided the resource for the improvements announced today."
The Resource Manager also announced the rain had prompted an April 1 update of the outlook for 2026/27 seasonal determinations.
“Outlooks are usually issued mid-February and mid-May each year,” Dr Bailey said.
“With great interest about the benefits of the rain within a long dry period, an updated outlook will be released on April 1.”