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Table showing target and actual water use, dam levels, streamflow and rainfall
  Target Actual
February water use to date 14 billion litres 15 billion litres
Dam storage levels NA 45%
Weekly streamflow into dams NA 44 billion litres
February rainfall to date 13.0mm (Feb 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 1025 million litres per day, which was above the forecast of 1,035 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)
14/02/2020 1131 1029
13/02/2020 1075 1029
12/03/2020 1068 1029
11/02/2020 981 1029
10/02/2020 1003 1041
Note, water use is calculated up to 8am each day for the previous 24 hour period.

Since 1 July 2019, we have used 187.5 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 44.9 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 1291 actions (warnings + fines) compared with 1742 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 February period is 13 mm.

General water news

Thinking of buying your significant other roses this Valentine’s Day? Consider buying them a waterwise plant instead! You can use the Waterwise Plants search on our website to find one suited to your patch of WA, and you can choose something that will flower for your loved one each year.

Visit our website to find your waterwise plant and locate your nearest Waterwise Garden Centre.

Waterwise Plant search

Find your nearest Waterwise Garden Centre

Media Enquiries:

Contact: Clare Lugar

Position: Manager Media and Strategic Communications

Phone: (08) 9420 2555