Weekly water update

Data for week ending 26 November 2015
Last update at 4:00 PM 26 November 2015

Dam storage levels


1301.0 billion litres this week


Less than week ending 19 November 2015

Avg. catchment rainfall

12.5 mm

This week


More than week ending 19 November 2015

Flow into dams

2,941 ML

This week


Less than week ending 19 November 2015

Water use

181 L

Daily avg. per person this week


Less than week ending 19 November 2015

Storages continue to decline with minimal rain

Another week of minimal rain and high water use has seen storages continue to drop by 0.4% of capacity, representing a net loss of 7.1 billion litres over the week.

With only one day of rainfall, Melbourne’s four major catchments received between 1.8 to 11.2 mm of rain, the
average being 7.5 mm.

This was 65.0% below the longterm average for the period of 21.4 mm.

The 3.2 billion litres of stream flow was 71.5% below the 30-year average for the period
(11.1 billion litres).

Water storages are now 72.2% (1,308.9 billion litres) full, compared with 79.0% (1,431.8
billion litres) at the same time last year - a difference of 122.8 billion litres.

Melburnians used an average of 181 litres of water per person per day. This is 2 litres less than the previous week.

Permanent water use rules are currently in place. View water use rules and water saving tips or contact your local water retailer for advice.


Dam storage levels

Hide details [-]

71.8% full at 26 November 2015

1,301,033 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 770,137
-7,414 since last week
72.1% 12.2 (verified)
View hourly unverified
Cardinia 286,911 177,800
+886 since last week
62.0% N/A
View hourly unverified
Upper Yarra 200,579 117,644
+439 since last week
58.7% 11.6 (verified)
View hourly unverified
Sugarloaf 96,253 88,902
-212 since last week
92.4% N/A
View hourly unverified
Silvan 40,445 34,986
-357 since last week
86.5% N/A
View hourly unverified
Tarago 37,580 37,566
-22 since last week
100.0% N/A
View hourly unverified
Yan Yean 30,266 26,131
-153 since last week
86.3% N/A
View hourly unverified
Greenvale 26,839 25,008
-221 since last week
93.2% N/A
View hourly unverified
Maroondah 22,179 20,796
-823 since last week
93.8% 8.8 (verified)
View hourly unverified
O'Shannassy 3,123 2,063
-21 since last week
66.1% 19.2 (verified)
View hourly unverified
Total 1,812,175 1,301,033
-7,898 since last week
71.8% N/A

Download this data (.CSV)

Dam storage levels includes all of Melbourne's water storage areas that receive water from catchments and the desalination plant.


Monthly average storage levels of Melbourne's reservoirs over the years. Data is updated at the end of each month. View our interactive storage graph, displaying data from 1940 - present.

Rainfall at dams

Show details [+]
Catchment This week (mm) This week's long term average (ML) based on mean from previous 30 years Variation
(to the average)
Same time last year
Thomson 12.2 18.0 -33.0% 12.4mm
Upper Yarra 11.6 18.0 -37.0% 29.4mm
O'Shannassy 19.2 21.0 -7.7% 25.0mm
Maroondah 8.8 23.0 -61.7% 26.8mm

Download this data (.CSV)

Rainfall data is a weighted average catchment figure that is validated and provided for four major catchments only.

Flow into dams

Show details [+]
Catchment This week (ML) This week's long term average (ML) based on mean from previous 30 years Variation
(to the average)
Same time last year (ML)
Thomson 1,424 3,710 -61.6% 2,041
Upper Yarra 278 2,280 -87.8% 715
O'Shannassy 627 1,830 -65.7% 1,097
Maroondah 612 1,540 -60.3% 1,131
Total 2,941 9,360 68.6% 4,984

Download this data (.CSV)

Flow into dams is a total of water flowing from our four major catchments into reservoirs.

Water use for Melbourne

Show details [+]
Daily water use This week's daily average (L) Last week's daily average (L)
Per Person Water Use 181 183

Download this data (.CSV)

Water use shows Melbourne's total usage each day and includes Western Water. The total amount used by all Melbournians -both business and households.

All figures include non-metropolitan supply for Western Water (supplied since March 2000), which are not included in annual Melbourne metropolitan consumption figures.

Copyright Melbourne Water