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Table showing target and actual water use, dam levels, streamflow and rainfall
  Target Actual
February water use to date 7 billion litres 8 billion litres
Dam storage levels NA 45%
Weekly streamflow into dams NA 44 billion litres
February rainfall to date 13.0mm (Jan average rainfall 1994-2017) 0.00mm
Note: 1 billion litres = approximately 400 Olympic swimming pools. Please note the figures in this table are rounded (except for rainfall) to the nearest whole number.

Water use

Average water use over the past week was 1089 million litres per day, which was above the forecast of 1,044 million litres.

Daily water use for the last 5 days

Table showing daily water use for the last 5 days
Date Actual water use (million litres) Forecast water use (million litres)
7/02/2020 1033 1041
6/02/2020 1098 1041
5/03/2020 1209 1041
4/02/2020 1139 1041
3/02/2020 1160 1048
Note, water use is calculated up to 8am each day for the previous 24 hour period.

Since 1 July 2019, we have used 180.3 billion litres of water – which is around 6 billion litres over the forecast for this period

Dam level (total for 15 dams)

The dam storage levels have dropped slightly this week and are sitting at a combined 45.4 per cent* of full capacity.

*Please note some dams are filled from different sources - dam levels include the transfer of groundwater and desalinated seawater from treatment plants as well as streamflow (that comes from rainfall). As we use many different sources of water, dams are no longer an accurate indicator of the health of Perth's overall water supply situation.

Streamflow (total for 15 dams)

From 1 May 2019 the dams have received 44.1 billion litres of streamflow. The post-1975 average for the May to April period (called the streamflow year) is 183.9 billion litres.

Sprinkler roster compliance

The two-day a week sprinkler roster now applies. Since 1 January 2020, we have taken a total of 1096 actions (warnings + fines) compared with 1238 actions for the same period in 2019.

Annual rainfall

Perth has received 3.00 mm of rainfall since 1 January 2019. The average (1994-2017) rainfall for the January period is 29.7 mm.

General water news

Have you checked our water saving tips lately?

There are many little things that we can all do to save water in our homes and businesses.

Click here for some useful tips to help you become more waterwise.

Media Enquiries:

Contact: Clare Lugar

Position: Manager Media and Strategic Communications

Phone: (08) 9420 2555