Each Friday we update 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 if you think we can improve the Snapshot.

This week's storage levels

Weekly update of a subset of storages across Victoria

StorageThis weekSource data dateLast week2021Capacity (ML)
Melbourne Water     
Thomson96.515-Sep-2296.181.61,068,000
Cardinia86.815-Sep-2285.372.1286,911
Upper Yarra83.115-Sep-2283.288.7200,579
Sugarloaf95.715-Sep-2296.087.596,253
Silvan87.815-Sep-2287.486.640,445
Tarago100.015-Sep-22100.0100.037,580
Yan Yean100.015-Sep-22100.096.130,266
Greenvale94.315-Sep-2293.385.526,839
Maroondah100.015-Sep-22100.0100.022,179
O'Shannassy100.015-Sep-22100.098.93,123
All storages93.415-Sep-2292.982.21,812,175
Goulburn-Murray Water     
Dartmouth*99.015-Sep-2299.077.13,856,232
Hume*95.615-Sep-2295.296.83,005,157
Eildon96.415-Sep-2295.877.23,334,158
Eppalock (Total)76.715-Sep-2266.655.4304,651
Cairn Curran93.315-Sep-2285.863.6147,130
Nillahcootie100.315-Sep-22100.1100.740,400
Tullaroop100.015-Sep-2291.572.272,950
Barwon Water     
Geelong and district97.715-Sep-2297.391.895,435
Central Highlands Water     
Ballarat and district96.913-Sep-2296.596.860,594
Coliban Water     
Coliban Southern100.315-Sep-2299.7100.269,342
Gippsland Water     
Moondarra100.015-Sep-22100.0100.030,458
Grampians Wimmera Mallee Water     
Grampians storages42.114-Sep-2239.242.6560,311
South Gippsland Water     
Major systems100.009-Sep-22100.0100.06,111
Southern Rural Water     
Glenmaggie90.015-Sep-2290.395.6177,640
Blue Rock100.515-Sep-22101.0100.6198,280
Rosslynne73.715-Sep-2271.351.925,400
Werribee Basin**96.015-Sep-2294.383.668,995
Westernport Water     
Candowie100.409-Sep-22100.2100.44,448

* 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

Monthly storage levels

As at the end of August 2022:

  • Regional storages were 86.8% full
    • 11.8% higher than the previous month (85.0%)
  • Melbourne storages were 92.5% full
    • 4.5% higher than the previous month (88.0%)
  • Total Victorian storages were 96.2% full
    • 10.7 % higher than the previous month (85.0%)

The graphs and data below are updated at the end of each month. This monthly dataset contains more storages than the weekly storage table above.

Download the monthly storage data (2010 to 2022).

Updated 21 September 2022, next update mid to late October 2022

Regional monthly storage levels - end January 2010 to end August 2022

This picture displays the total regional storage levels (all systems except the Melbourne System) at the end of the month, from January 2010 to current.

Melbourne monthly storage levels - end January 2010 to end June 2022

This picture displays the total Melbourne System storage levels at the end of the month, from January 2010 to current.This picture displays the total Melbourne System storage levels at the end of the month, from January 2010 to current.

Total Victorian monthly storage levels - end January 2010 to end June 2022

This picture displays the total Victorian storage levels at the end of the month, from January 2010 to current.

Map of rainfall received in the last seven days

As at 30 September 2021 total rainfall received in the last seven days in millimetres

View the map on the BOM Website.

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

View daily rainfall at:

DateMelbourne (Olympic Park) rainfall (mm)Upper Yarra rainfall (mm)Thomson  rainfall (mm)Geelong rainfall (mm)
9/09/20220.26.80.82.6
10/09/20226.840.42.6
11/09/202203.230
12/09/20221.642.41.4
13/09/20221.414.60
14/09/202200.200.2
15/09/20227.64.86.824
Total 17.6241830.8
  • Melbourne (Olympic Park) on the BOM Website
  • Upper Yarra and Thomson on the Melbourne Water website
  • Geelong on the BOM Website.
  • Map of total rainfall received month to date

    As at 30 September 2021 percentage of rainfall received for the month to date compared to long term average

    View the map on the BOM Website.

    Total rainfall received month to date in the Melbourne and Geelong region:

    SiteRainfall (mm) - Total month to dateSeptember Rainfall Average (mm)Calculation method (for average)
    Melbourne (Olympic Park)15.652.9Mean rainfall (mm) - 30 year period 1981 -2010 from Melbourne Regional Office gauge
    Upper Yarra27.4117.8As per Melbourne Water
    Thomson22.4103.5As per Melbourne Water
    Geelong14.849.7Mean rainfall (mm) - 28 year period 1983 - 2011 from Grovedale (Geelong Airport) gauge

    Seasonal Climate Outlook

    BoM Climate outlook (15 September 2022):

    October to December rainfall is likely to be above average for most of Victoria (65 to >80% chance of exceeding the median). Likelihood of above average rainfall are higher in the north, east and southeast (75 to >80% chance).

    October to December maximum temperatures are likely to be warmer than average along the coast (60 to 75% chance of exceeding the median). Temperatures are likely to be at or below average for the rest of Victoria.

    Minimum temperatures October to December are very likely to be warmer than average for the whole state (75 to >80% chance).

    The next update is expected on 22 September 2022 (pm).

    •  

    View the full outlook on the BOM Website.

    30 September 2021 Bureau of Meteorology climate outlook image of Australia. Chance of exceeding the median Rainfall.

    Climate Driver Update

    BoM Climate Driver Update (13 September 2022):

      The Bureau's ENSO Outlook has been raised to LA NIÑA. Key atmospheric and oceanic indicators of the El Niño–Southern Oscillation (ENSO) show an established La Niña.

      Models indicate this La Niña event may peak during the spring and return to neutral conditions early in 2023. La Niña events increase the chances of above-average rainfall for northern and eastern Australia during spring and summer.

      The negative Indian Ocean Dipole (IOD) event continues and is likely to continue into late spring. A negative IOD event is typically associated with above average spring rainfall for much of Australia. When a La Niña and negative IOD combine, it further increases the likelihood of above average rainfall over Australia, particularly in the eastern half of the continent.

      The Southern Annular Mode (SAM) index is currently positive and is likely to be mostly positive for the coming three months. During the spring months, a positive SAM has a wetter influence for parts of eastern New South Wales and far eastern Victoria.

      The next update is expected on 27 September 2022 (pm).

    •  

    View the full update on the BOM Website

    ENSO inactive image from the Bureau of Meteorology

    Current urban restrictions

    As at 15 September 2022, there were no towns on restrictions, with permanent water saving rules in place across Victoria.

    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.

    Monthly urban restrictions

    As at the end August 2022 permanent water saving rules were in place across Victoria, with no towns on urban restrictions at any time during the month. The last time urban restrictions were in place was in June 2020, when 20 towns were on stage 1 restrictions.

    The graph and data below are updated at the end of each month.

    Download the monthly urban restrictions data (2010 to 2022)

    Updated 06 September 2022, next update early October 2022.

    Graph of total number of towns on urban restrictions from January 2010 to August 2022

    Graph of the monthly urban restrictions from end January 2010 to end of June 2021

    Fortnightly stream restriction update

    As at 12 September, 3 streams are subject to diversion restrictions across Victoria (out of a total of 250 unregulated streams),
    4 less than the previous fortnight (8 on 15 August 2022):

    • Goulburn-Murray Water – 2 streams (2 less than the previous fortnight)
    • Southern Rural Water – 0 stream on ban (1 less than the previous fortnight)
    • Melbourne Water – 0 streams on bans (1 less than the previous fortnight)
    • GWMW - restrictions apply to licence holders on 1 stream where diversion triggers have not yet been met for 2022-2023
      • Wimmera River diverters below Glenorchy weir are not permitted to take as of 1 July 2022
      • Avoca River diverters below Charlton weir are permitted to take as of 23 August 2022

    Next update week of 26 September 2022.

    Monthly stream restrictions

    As at the end of August 2022:

    • There were 7 streams with restrictions or bans on licensed diversions across Victoria (17 in July).
      • Goulburn-Murray Water - 4 streams restricted (11 in July)
      • Grampians Wimmera Mallee Water - 1 streams restricted (2 in July)
      • Melbourne Water - 1 stream restricted (3 in July)
      • Southern Rural Water -1 streams restricted (the same in July)

    The graphs and data below are as at the end of each month.

    Download the monthly stream restriction data (2010-2022).

    Updated 06 September 2022, next update October 2022

    Graph of total number of unregulated streams restricted from January 2010 to August 2022

    Monthly unregulated stream restrictions graph from end January 2010 to end June 2021

    Quarterly groundwater level trend summary

    Groundwater level trend update - 1 April to 30 June 2022 quarter.

    Groundwater level trends in groundwater management units (GMUs) are reported quarterly. Groundwater level trends for GMUs have been determined based on 5 years (short-term) or 10 years (long-term) consistent monitoring data from key bores in the State Observation Bore Network (SOBN) (Glossary).

    Go to the DELWP website for more information on SOBN and GMUs.

    TRENDGMU typeDecliningStableRising
    Short-term trendGMA9189
    WSPA262
    Short-term total112411
    Long-term trendGMA11252
    WSPA721
    Long-term total18273

    Note: Insufficient data or monitoring bores were available to determine a short-term trend in 7 GMAs and a long-term trend in 5 GMAs.

    Download the groundwater level trend data for 2018 to 2022.

    Updated 14 July 2022, next update October 2022 (for July-September 2022 quarter).

    Groundwater management unit short-term trends - April to June 2022 quarter

    The map below shows the short-term (5-year) trends in each GMU (both GMAs and WSPAs) across Victoria. The trends are determined using the data from the SOBN key bores in the second map below.

    April to June 2021 map of Groundwater Management Unit quarterly short-term (5-year) level trends

    State Observation Bore Network key bore short-term trends - April to June 2022 quarter

    The map below shows the short-term (5-year) trends in each SOBN key bore used to determine trends in the GMUs above.

    April to June 2021 map of key State Observation Bore quarterly short-term (5-year) level trends

    Groundwater management unit long-term trends - April to June 2022 quarter

    The map below shows the long-term trends (10-year) in each GMU (both GMAs and WSPAs) across Victoria. The trends are determined using the data from the SOBN key bores in the second map below.

    April to June 2021 map of Groundwater Management Unit quarterly long-term (10-year) level trends

    State Observation Bore Network key bore long-term trends - April to June 2022 quarter

    The map below shows the long-term (10-year) trends in each SOBN key bore used to determine trends in the GMUs above.

    April to June 2021 map of key State Observation Bore quarterly long-term (10-year) level trends

    Seasonal determinations and allocations

    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.

    In the Grampians Wimmera Mallee Water area, resource assessments are undertaken every month to determine the amount of water that can be made available to entitlement holders. These monthly assessments result in a formal announcement on water allocations.

    Coliban Water assess seasonal allocations for customers on its rural network based on available resources in the Coliban System.

    SystemSeasonal determinations / allocationsDate updated
    Goulburn-Murray Water - 2022-23
     HRWSLRWS 
    Goulburn100%0%15 Sep 2022
    Broken100%69%
    Murray100%12%
    Campaspe100%0%
    Loddon100%0%
    Bullarook100%100%
    Southern Rural Water - 2022-23
     HRWSLRWS 
    Bacchus Marsh/Werribee100%60%20 Sept 2022
    Thomson/Macalister100%0%2 July 2022
    Grampians Wimmera Mallee Water - 2022-23
    Wimmera-Mallee Pipeline Product19%September 2022
    Coliban Water- 2021-22
    Coliban Rural System100%Opening announcement
    July 2021

    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 and Southern Rural Water sites. Go to Grampians Wimmera Mallee Water's site and search for 'groundwater restrictions'.

    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: 21/09/22