Think climate change. Be waterwise

Picture of one of our two desalination plants

How Perth's water sources have changed over time

Climate change has dramatically affected where we get our water from. We can no longer rely on the rain to meet our water needs.

As we continue to feel the impacts of climate change, we have adapted. We are working with government, partnering with businesses and supporting the community to take action on climate changes.

Hand catching droplet of water

We're here for you

Our thoughts are with everyone affected by the Wooroloo bushfire. We’re here to help impacted customers, learn about our relief options.

Relief options
Perth water supply map

Adapting our water supply to climate change

Ever wondered how climate change has affected our water supply?

Find out more

Monthly Streamflow


- GL

Year to date

Historical *

- GL

Avg year to date



- GL

Years of declining rainfall means less water flowing into your dams.

* Average monthly streamflow between 1911 - 1974


Latest updates


26 Mar 2021 | Media Release

Perth weekly water update - 26 March 2021

Latest metro water use, dam levels, streamflow and rainfall data.

  • Community
  • Climate change
  • Dams
26 Mar 2021 | Update

Est. 1995: Looking back at our Waterwise Schools Program

For 25 years, we have been working with schools to empower future generations to become sustainability ambassadors.

  • Education
  • Waterwise
  • Community
26 Mar 2021 | Update

Why you don’t want a leaky toilet

Find out how you can save water in the toilet including how to check for possible leaks.

  • Residential
  • Waterwise
  • Leaks
  • Wastewater

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