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

We’re committed to supporting households and businesses and providing essential services to WA.

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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


03 Aug 2021 | Update

Securing Denmark's future water supply

A pipeline now connects Denmark to our Lower Great Southern Towns Supply Scheme.

  • Denmark
  • Community
  • Great Southern
30 Jul 2021 | Media Release

Perth weekly water update - 30 July 2021

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

  • Climate change
  • Community
  • Dams
30 Jul 2021 | Media Release

Water Corporation recommits to Aboriginal Procurement Policy and triples value of Aboriginal contracts

Water Corporation has restated its commitment to increasing employment and training opportunities for Aboriginal companies, with Water Minister Dave Kelly today announcing the value of its contracts awarded to Aboriginal businesses had almost tripled in the past financial year.

  • Community
  • Projects

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