DELWP regularly updates the community on the status of the state’s water across a variety of categories including storage levels, rainfall, and seasonal outlooks.

Contact the water reporting team at water.reporting@delwp.vic.gov.au for additional information or assistance.

Major storage levels

StorageStorage level (%)Source data datePrevious week’s level (%)Previous year's level (%)
Melbourne Water
Thomson69.316-Sep-2068.753.9
Cardinia82.516-Sep-2082.771.9
Upper Yarra43.416-Sep-2044.855.1
Sugarloaf97.016-Sep-2096.189.1
Silvan85.316-Sep-2085.888.1
Tarago97.016-Sep-2096.361.0
Yan Yean89.816-Sep-2089.773.2
Greenvale94.116-Sep-2093.582.3
Maroondah99.916-Sep-20100.0101.0
O'Shannassy100.016-Sep-20100.07.9
All storages72.116-Sep-2071.960.9
Goulburn-Murray Water
Dartmouth*55.816-Sep-2055.558.7
Hume*64.816-Sep-2064.142.3
Eildon58.216-Sep-2057.748.0
Eppalock (Total)43.516-Sep-2043.939.7
Cairn Curran46.416-Sep-2046.752.9
Nillahcootie94.216-Sep-2093.839.3
Tullaroop61.716-Sep-2062.382.5
Barwon Water
Geelong and district74.415-Sep-2073.671.1
Central Highlands Water
Ballarat and district90.715-Sep-2090.394.4
Coliban Water
Coliban Southern86.616-Sep-2087.394.8
Gippsland Water
Moondarra100.016-Sep-20100.0100.0
Grampians Wimmera Mallee Water
Grampians storages34.316-Sep-2033.544.6
South Gippsland Water
Major systems99.911-Sep-20100.0100.0
Southern Rural Water
Glenmaggie90.316-Sep-2087.783.4
Blue Rock100.816-Sep-20101.090.4
Rosslynne27.216-Sep-2026.926.3
Werribee Basin**64.716-Sep-2064.273.2
Westernport Water
Candowie100.004-Sep-20100.0100.0

* Victoria has a 50% share of inflows to Dartmouth and in Hume

** Werribee Basin storage value is the combined volume of the Melton, Merrimu and Pykes reservoirs

Rainfall in the last seven days

As at 9 January 2020 total rainfall received in the last seven days in millimeters

View the map on the BOM Website.

Rainfall in the Melbourne and Geelong region in the last seven days:

DateMelbourne (Olympic Park) Upper YarraThomsonGeelong
Rainfall (mm)Rainfall (mm)Rainfall (mm)Rainfall (mm)
10/09/202000.200
11/09/20200000.2
12/09/20201.60.2011.6
13/09/202011.88.84.835.4
14/09/20200000
15/09/202000.200
16/09/20200000
Total 13.49.44.847.2

View daily rainfall at:

Total rainfall received this month

As at 9 January percentage of rainfall received in January 2020 compared to long term average

View the map on the BOM Website.

Total rainfall received this month in the Melbourne and Geelong region:

SiteRainfall (mm) - Total month to dateSeptember Rainfall Average (mm)Calculation method (for average)
Melbourne (Olympic Park)14.852.9Mean rainfall (mm) - 30 year period 1981 -2010 from Melbourne Regional Office gauge
Upper Yarra16.2117.6As per Melbourne Water
Thomson10.2107As per Melbourne Water
Geelong50.649.7Mean rainfall (mm) - 28 year period 1983 - 2011 from Grovedale (Geelong Airport) gauge

Seasonal Climate Outlook

BoM Climate outlook (10 September 2020):

      • October to December is likely to be wetter than average across Victoria (greater than 80% chance for most of the state, 65-80% chance for southern Victoria, East Gippsland and parts of the north-west).
      • During October to December, days are likely to be warmer than average in southern Victoria and alpine regions (60-75% chance). In northern Victoria days are expected to be closer to average (50-60% chance). Night-time temperatures are very likely to be warmer than average across Victoria (greater than 80% chance).

    Next update is expected on 17 September 2020 (pm)

View the full outlook on the BOM Website.

Bureau of Meteorology climate outlook image of the southeast of Australia. Chance of exceeding the median Rainfall.

Climate Driver Update

BoM Climate Driver Update (15 September 2020):

  • The Bureau's ENSO Outlook remains at La Niña ALERT. However, further cooling of the surface of the tropical Pacific Ocean is expected. All surveyed international climate models indicate La Niña thresholds will be met from October until at least the end of the year, with most models maintaining these values into early 2021.
  • If current atmospheric patterns and ocean cooling continue until the end of September, it is highly likely that La Niña conditions will be sustained until at least the end of the year.
  • In the Indian Ocean, values of the Indian Ocean Dipole (IOD) index have risen back into neutral territory. However, five of the six surveyed models indicate values may drop once again, and that negative IOD thresholds could be met in October.
  • Both La Niña and negative IOD typically increase the chance of above average rainfall across much of Australia during spring.
  • The Southern Annual Mode (SAM) is positive, and is expected to weaken but remain weakly positive the remainder of September. A positive SAM during spring is typically associated with wetter and cooler than average conditions in parts of eastern Australia.

The next update is expected on 29 September 2020 (pm)

View the full update on the BOM Website

El Nino Watch image from the Bureau of Meteorology

Seasonal Determinations

Seasonal determinations are made against water shares to provide allocations in declared systems. In northern Victoria, Goulburn-Murray Water makes the seasonal determinations in the relevant systems, while Southern Rural Water makes the seasonal determinations in the Thomson/Macalister and Bacchus Marsh/Werribee systems.

SystemSeasonal DeterminationsDate updated
Goulburn-Murray Water - 2020-21
 HRWSLRWS 
Goulburn51%0%15 Sep 2020
Broken72%0%
Murray36%0%
Campaspe74%0%
Loddon51%0%
Bullarook100%100%
Southern Rural Water - 2020-21
 HRWSLRWS 
Bacchus Marsh/Werribee60%0%8 Sep 2020
Thomson/Macalister100%0%8 Sep 2020
Grampians Wimmera Mallee Water - 2020-21
Wimmera-Mallee Pipeline Product9%4 Sep 2020
Coliban Water- 2020-21
Coliban Rural System100%Opening announcement
1 July 2020

Additional Information

Weather and Climate

For most up to date information regarding rainfall conditions, seasonal climate outlooks and other climate information, visit the Bureau of Meteorology site.

Groundwater Restrictions

For current groundwater restrictions visit the Goulburn-Murray Water, Grampians Wimmera Mallee Water and Southern Rural Water sites.

Seasonal Determinations

Seasonal determinations are made against water shares to provide allocations (Glossary). Visit the Victorian Water Register website for current determinations.

Seasonal Determination Outlook

The Northern Victoria Resource Manager provides information about risk of spill and resource outlook (Glossary) for seasonal determinations.

Water Register and Market Information

The Water Register is a public register of all water-related entitlements in Victoria. It has been designed and built to record water entitlements with integrity and provide crucial information for managing Victoria’s water resources.

You can obtain information about trading water in Victoria at the Victorian Water Register Site. Water products that may be traded in Victoria include water shares, allocations and take and use licences (Glossary)

Urban Water Restrictions

Water restrictions are only applicable to customers on a piped water (reticulated) supply. Urban water corporations publish water restrictions on their websites. Visit the Water in Your Region page to find your urban water corporation via the interactive map.

The Bureau of Meteorology’s Water Restrictions also provides a summary of water restrictions.

Visit the DELWP water restrictions page for more detail on the types of restrictions.

Environmental Water Releases

To learn how water for the environment is being used across the rivers and wetlands of Victoria, visit the Victorian Environmental Water Holder website.

Drought Management

Victorian's Drought Preparedness and Response Framework is being used to support drought-affected communities, Visit the Drought Section of the Agriculture Victoria website for further information.

Page last updated: 16/09/20